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• Hidden UIView Orientation Change / Layout problems

  - by gargantaun

  The Problem: I have two View Controllers loaded into a root View Controller. Both sub view layouts respond to orientation changes. I switch between the two views using [UIView transformationFromView:...]. Both sub views work fine on their own, but if... Views are swapped Orientation Changes Views are swapped again the View that was previously hidden has serious layout problems. The more I repeat these steps the worse the problem gets. Implementation Details I have three viewsControllers. MyAppViewController A_ViewController B_ViewController A & B ViewControllers have a background image each, and a UIWebView and an AQGridView respectively. To give you an example of how i'm setting it all up, here's the loadView method for A_ViewController... - (void)loadView { [super loadView]; // background image // Should fill the screen and resize on orientation changes UIImageView *bg = [[UIImageView alloc] initWithFrame:self.view.bounds]; bg.contentMode = UIViewContentModeCenter; bg.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; bg.image = [UIImage imageNamed:@"fuzzyhalo.png"]; [self.view addSubview:bg]; // frame for webView // Should have a margin of 34 on all sides and resize on orientation changes CGRect webFrame = self.view.bounds; webFrame.origin.x = 34; webFrame.origin.y = 34; webFrame.size.width = webFrame.size.width - 68; webFrame.size.height = webFrame.size.height - 68; projectView = [[UIWebView alloc] initWithFrame:webFrame]; projectView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; [self.view addSubview:projectView]; } For the sake of brevity, the AQGridView in B_ViewController is set up pretty much the same way. Now both these views work fine on their own. However, I use both of them in the AppViewController like this... - (void)loadView { [super loadView]; self.view.autoresizesSubviews = YES; [self setWantsFullScreenLayout:YES]; webView = [[WebProjectViewController alloc] init]; [self.view addSubview:webView.view]; mainMenu = [[GridViewController alloc] init]; [self.view addSubview:mainMenu.view]; activeView = mainMenu; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(switchViews:) name:SWAPVIEWS object:nil]; } and I switch betweem the two views using my own switchView method like this - (void) switchViews:(NSNotification*)aNotification; { NSString *type = [aNotification object]; if ([type isEqualToString:MAINMENU]){ [UIView transitionFromView:activeView.view toView:mainMenu.view duration:0.75 options:UIViewAnimationOptionTransitionFlipFromRight completion:nil]; activeView = mainMenu; } if ([type isEqualToString:WEBVIEW]) { [UIView transitionFromView:activeView.view toView:webView.view duration:0.75 options:UIViewAnimationOptionTransitionFlipFromLeft completion:nil]; activeView = webView; } // These don't seem to do anything //[mainMenu.view setNeedsLayout]; //[webView.view setNeedsLayout]; } I'm fumbling my way through this, and I suspect a lot of what i've done is implemented incorrectly so please feel free to point out anything that should be done differently, I need the input. But my primary concern is to understand what's causing the layout problems. Here's two images which illustrate the nature of the layout issues... UPDATE: I just noticed that when the orientation is landscape, the transition flips vertically, when I would expect it to be horizontal. I don't know wether that's a clue as to what might be going wrong. Switch to the other view... change orientation.... switch back....

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• Help needed with drawRect:

  - by Andrew Coad

  Hi, I'm having a fundamental issue with use of drawRect: Any advice would be greatly appreciated. The application needs to draw a variety of .png images at different times, sometimes with animation, sometimes without. A design goal that I was hoping to adhere to is to have the code inside drawRect: very simple and "dumb" - i.e. just do drawing and no other application logic. To draw the image I am using the drawAtPoint: method of UIImage. Since this method does not take a CGContext as a parameter, it can only be called within the drawRect: method. So I have: - (void)drawRect:(CGRect)rect { [firstImage drawAtPoint:CGPointMake(firstOffsetX, firstOffsetY)]; } All fine and dandy for one image. To draw multiple images (over time) the approach I have taken is to maintain an array of dictionaries with each dictionary containing an image, the point location to draw at and a flag to enable/suppress drawing for that image. I add dictionaries to the array over time and trigger drawing via the setNeedsDisplay: method of UIView. Use of an array of dictionaries allows me to completely reconstruct the entire display at any time. drawRect: now becomes: - (void)drawRect:(CGRect)rect { for (NSMutableDictionary *imageDict in [self imageDisplayList]) { if ([[imageDict objectForKey:@"needsDisplay"] boolValue]) { [[imageDict objectForKey:@"image"] drawAtPoint:[[imageDict objectForKey:@"location"] CGPointValue]]; [imageDict setValue:[NSNumber numberWithBool:NO] forKey:@"needsDisplay"]; } } } Still OK. The code is simple and compact. Animating this is where I run into problems. The first problem is where do I put the animation code? Do I put it in UIView or UIViewController? If in UIView, do I put it in drawRect: or elsewhere? Because the actual animation depends on the overall state of the application, I would need nested switch statements which, if put in drawRect:, would look something like this: - (void)drawRect:(CGRect)rect { for (NSMutableDictionary *imageDict in [self imageDisplayList]) { if ([[imageDict objectForKey:@"needsDisplay"] boolValue]) { switch ([self currentState]) { case STATE_1: switch ([[imageDict objectForKey:@"animationID"] intValue]) { case ANIMATE_FADE_IN: [self setAlpha:0.0]; [UIView beginAnimations:[[imageDict objectForKey:@"animationID"] intValue] context:nil]; [UIView setAnimationDelegate:self]; [UIView setAnimationCurve:UIViewAnimationCurveEaseIn]; [UIView setAnimationDuration:2]; [self setAlpha:1.0]; break; case ANIMATE_FADE_OUT: [self setAlpha:1.0]; [UIView beginAnimations:[[imageDict objectForKey:@"animationID"] intValue] context:nil]; [UIView setAnimationDelegate:self]; [UIView setAnimationCurve:UIViewAnimationCurveEaseOut]; [UIView setAnimationDuration:2]; [self setAlpha:0.0]; break; case ANIMATE_OTHER: // similar code here break; default: break; } break; case STATE_2: // similar code here break; default: break; } [[imageDict objectForKey:@"image"] drawAtPoint:[[imageDict objectForKey:@"location"] CGPointValue]]; [imageDict setValue:[NSNumber numberWithBool:NO] forKey:@"needsDisplay"]; } } [UIView commitAnimations]; } In addition, to make multiple sequential animations work correctly, there would need to be an outer controlling mechanism involving the animation delegate animationDidStop: callback that would set the needsDisplay entries in the dictionaries to allow/suppress drawing (and animation). The point that we are at now is that it all starts to look very ugly. More specifically: drawRect: starts to bloat quickly and contain code that is not "just drawing" code the UIView needs implicit awareness of the application state the overall process of drawing is now spread across three methods at a minimum And on to the point of this post: how can I do this better? What would the experts out there recommend in terms of overall structure? How can I keep application state information out of the view? Am I looking at this problem from the wrong direction. Is there some completely different approach that I should consider?

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• CoreData: managedObjectContext not being created

  - by PruitIgoe

  I had to add core data to an existing project but I am having issues with the managedObjectContext... in prefix.pch I have this: #import <Availability.h> #ifndef __IPHONE_5_0 #warning "This project uses features only available in iOS SDK 5.0 and later." #endif #ifdef __OBJC__ #import <UIKit/UIKit.h> #import <Foundation/Foundation.h> #import <CoreData/CoreData.h> #endif ... in my appDelegate.h I have this: #import <UIKit/UIKit.h> #import "AppViewController.h" #import "DDLog.h" #import "DDASLLogger.h" #import "DDFileLogger.h" #import "DDTTYLogger.h" #import "KIP_LogManager.h" @interface AppDelegate : UIResponder <UIApplicationDelegate> { DDFileLogger* fileLogger; /*coredata*/ NSManagedObjectModel* managedObjectModel; NSManagedObjectContext* managedObjectContext; NSPersistentStoreCoordinator* persistentStoreCoordinator; } @property (strong, nonatomic) UIWindow *window; @property (strong, nonatomic) AppViewController* viewController; @property (readonly, strong, nonatomic) NSManagedObjectContext* managedObjectContext; @property (readonly, strong, nonatomic) NSManagedObjectModel* managedObjectModel; @property (readonly, strong, nonatomic) NSPersistentStoreCoordinator* persistentStoreCoordinator; - (void)setupLogging; - (NSString *)applicationDocumentsDirectory; in appDelegate.m this: @synthesize managedObjectContext = _managedObjectContext; @synthesize managedObjectModel = _managedObjectModel; @synthesize persistentStoreCoordinator = _persistentStoreCoordinator; ... - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { //establish lumberjack logging [self setupLogging]; DDLogVerbose(@"\n\n*********************\nNEW LOG SESSION\n**********************\n\n"); //set root view controller self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.viewController = [[AppViewController alloc] init]; self.window.rootViewController = self.viewController; self.viewController.managedObjectContext = _managedObjectContext; return YES; } ... #pragma mark - CoreData Stack - (NSManagedObjectContext *)managedObjectContext { if (_managedObjectContext != nil) { return _managedObjectContext; } NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator]; if (coordinator != nil) { _managedObjectContext = [[NSManagedObjectContext alloc] init]; [_managedObjectContext setPersistentStoreCoordinator:coordinator]; } return _managedObjectContext; } // Returns the managed object model for the application. // If the model doesn't already exist, it is created from the application's model. - (NSManagedObjectModel *)managedObjectModel { if (_managedObjectModel != nil) { return _managedObjectModel; } NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"SPI_PAC" withExtension:@"momd"]; _managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL]; return _managedObjectModel; } - (NSPersistentStoreCoordinator *)persistentStoreCoordinator { if (persistentStoreCoordinator != nil) { return persistentStoreCoordinator; } NSMutableString* strDocsDirector = [[NSMutableString alloc] initWithString:[self applicationDocumentsDirectory]]; [strDocsDirector appendString:@"/SPI_PAC.sqlite"]; NSURL* storeURL = [NSURL URLWithString:strDocsDirector]; NSError *error = nil; persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]]; if(![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeURL options:nil error:&error]) { /*Error for store creation should be handled in here*/ } return persistentStoreCoordinator; } - (NSString *)applicationDocumentsDirectory { return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]; } in the view controller, viewDidLoad I am logging the passed managedObjectContext and am getting null returned. Obviously I am missing something but not sure what? In viewcontroller.h I have: @property (nonatomic, retain) NSManagedObjectModel* managedObjectModel; @property (nonatomic, retain) NSManagedObjectContext* managedObjectContext; @property (nonatomic, retain) NSPersistentStoreCoordinator* persistentStoreCoordinator; and in the viewcontroller.m: @synthesize managedObjectContext = managedObjectContext; ... DDLogVerbose(@"%@", managedObjectContext);

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• objective-c Novice - Needs help with global variables and setter method

  - by user544006

  I am creating a quiz app which has 2 views, MMAppViewController and a subview Level1View. I have declared NSInteger property "theScore" in the MMAppViewController view and have synthesised it. In my Level1View when they answer a correct question the "theScore" int will increase by one. The score has to be a global variable because when you reach so many points it will unlock the next level. For some reason in my switch statement it only lets me use the setTheScore method once. I am getting errors for every other set method in the switch statement. Error: "Duplicate label setTheScore". The statement is in the pushButtonAnswer method: setTheScore: theScore++; Here is my code: #import "Level1View.h" #import "MMAppViewController.h" @implementation Level1View @synthesize answer; @synthesize question; @synthesize userAnswer; @synthesize theScore; @synthesize score; int questionNum=0; NSInteger score=0; NSInteger theScore; BOOL start=FALSE; BOOL optionNum=FALSE; -(IBAction)pushBack{ [self dismissModalViewControllerAnimated:YES]; } -(IBAction)pushButton1{ optionNum=TRUE; labelAnswer.textColor=[UIColor blackColor]; userAnswer=@"1"; [labelAnswer setText:(@"You chose 'A'")]; } -(IBAction)pushButton2{ optionNum=TRUE; labelAnswer.textColor=[UIColor blackColor]; userAnswer=@"2"; [labelAnswer setText:(@"You chose 'B'")]; } -(IBAction)pushButton3{ optionNum=TRUE; labelAnswer.textColor=[UIColor blackColor]; userAnswer=@"3"; [labelAnswer setText:(@"You chose 'C'")]; } -(IBAction)pushButtonAnswer{ labelAnswer.textColor=[UIColor blackColor]; switch (questionNum){ case 1: if(answer==userAnswer && optionNum==TRUE){ labelAnswer.textColor=[UIColor greenColor]; [labelAnswer setText:(@"correct")]; [self hideButtons]; score++; [self setTheScore: theScore++]; } else if(optionNum==FALSE){ [labelAnswer setText:(@"Please choose an answer below:")];} else{ labelAnswer.textColor=[UIColor redColor]; [labelAnswer setText:(@"wrong")];} [self hideButtons]; break; case 2: if(answer==userAnswer && optionNum==TRUE){ labelAnswer.textColor=[UIColor greenColor]; [labelAnswer setText:(@"correct")]; [self hideButtons]; score++; [self setTheScore: theScore++]; } else if(optionNum==FALSE){ [labelAnswer setText:(@"Please choose an answer below:")];} else{ labelAnswer.textColor=[UIColor redColor]; [labelAnswer setText:(@"wrong")]; [self hideButtons];} break; case 3: if(answer==userAnswer && optionNum==TRUE){ labelAnswer.textColor=[UIColor greenColor]; .... And #import "MMAppViewController.h" #import "Level1View.h" @implementation MMAppViewController @synthesize theScore; NSInteger score; -(IBAction)pushLevel1{ Level1View *level1View = [[Level1View alloc] initWithNibName:nil bundle:nil]; [self presentModalViewController:level1View animated:YES]; theScore++; } -(IBAction)pushLevel2{ //Level1View *level1View = [[Level1View alloc] initWithNibName:nil bundle:nil]; //[self presentModalViewController:level1View animated:YES]; NSInteger *temp = Level1View.score; //int theScore=2; [labelChoose setText:[NSString stringWithFormat:@"You scored %i", theScore]]; } Does anyone know why i am getting these errors and if I am coding this correctly?

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• how to pass a string value from one controller to another

  - by shreedevi

  I have a login controller ,and after the successful login i want to pass some string value to the menu page.however it does not work.the application crashes. I have tried possible suggesstion of Ihuk and SAM from the link below http://stackoverflow.com/questions/1685964/how-to-pass-a-string-value-from-one-view-controller-to-another-view-controller loginController.h: #import <UIKit/UIKit.h> @class RootViewController; @class Menu; @interface LoginController : UIViewController { UIButton *login_Button; UITextField *username_TextField; UITextField *password_TextField; RootViewController *mc1; UINavigationController *navigationController; Menu *mv1; } @property(nonatomic,retain) IBOutlet UIButton *login_Button; @property(nonatomic,retain) IBOutlet UITextField *username_TextField; @property(nonatomic,retain) IBOutlet UITextField *password_TextField; @property(nonatomic,retain) RootViewController *mc1; @property (nonatomic, retain) IBOutlet UINavigationController *navigationController; @property(nonatomic,retain)Menu *mv1; - (IBAction)Login_Method:(id)sender; -(id)initWithUserName:(NSString *)name ; @end loginController.m #import "LoginController.h" #import "Menu.h" #import "ViewController.h" #import "RootViewController.h" @implementation LoginController @synthesize mc1,mv1; @synthesize login_Button,username_TextField,password_TextField; @synthesize navigationController; // Implement viewDidLoad to do additional setup after // loading the view, typically from a nib. - (void)viewDidLoad { if (![self.navigationController isNavigationBarHidden]) [self.navigationController setNavigationBarHidden:YES animated:NO]; //[self presentModalViewController:navigationController animated:YES]; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (IBAction)Login_Method:(id)sender { Menu *mv2 = [[Menu alloc] initWithUserName:@"Menu" bundle:nil]; //mv2.l1.text=@"aa"; //i tried this, but not work,so created initWithUserName self.mv1=mv2; [self presentModalViewController:mv1 animated:YES]; // [RootViewController release]; } -(id)initWithUserName:(NSString *)name { self = [super init]; if (nil == self) { return nil; } // display or store login info somewhere [mv1.l1 setText:name]; return self; } -(BOOL)textFieldShouldReturn:(UITextField *)theTextField { [theTextField resignFirstResponder]; return YES; } - (void)dealloc { [username_TextField release]; [password_TextField release]; [super dealloc]; } @end Menu.h #import <UIKit/UIKit.h> @class Menu; @interface Menu : UIViewController { UILabel *l1; UIButton *AccountSummary_Button; UIButton *PayOffQuote_Button; UIButton *PayBill_Button; UIButton *Logout_Button; UINavigationController *nv1; } @property(nonatomic,retain) IBOutlet UILabel *l1; @property(nonatomic,retain) IBOutlet UIButton *AccountSummary_Button; @property(nonatomic,retain) IBOutlet UIButton *PayOffQuote_Button; @property(nonatomic,retain) IBOutlet UIButton *PayBill_Button; @property(nonatomic,retain) IBOutlet UIButton *Logout_Button; @property (nonatomic, retain) IBOutlet UINavigationController *nv1; -(IBAction)ViewAccountSummary_method:(id)sender; -(IBAction)ViewPayOffQuote_method:(id)sender; -(IBAction)ViewPayBill_method:(id)sender; -(IBAction)Logout_method:(id)sender; @end Menu.m

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• Professional Scrum Developer (.NET) Training in London

  - by Martin Hinshelwood

  On the 26th - 30th July in Microsoft’s offices in London Adam Cogan from SSW will be presenting the first Professional Scrum Developer course in the UK. I will be teaching this course along side Adam and it is a fantastic experience. You are split into teams and go head-to-head to deliver units of potentially shippable work in four two hour sprints. The Professional Scrum Developer course is the only course endorsed by both Microsoft and Ken Schwaber and they have worked together very effectively in brining this course to fruition. This course is the brain child of Richard Hundhausen, a Microsoft Regional Director, and both Adam and I attending the Trainer Prep in Sydney when he was there earlier this year. He is a fantastic trainer and no matter where you do this course you can be safe in the knowledge that he has trained and vetted all of the teachers. A tools version of Ken if you will Find a course and register Download this syllabus Download the Scrum Guide What is the Professional Scrum Developer course all about? Professional Scrum Developer course is a unique and intensive five-day experience for software developers. The course guides teams on how to turn product requirements into potentially shippable increments of software using the Scrum framework, Visual Studio 2010, and modern software engineering practices. Attendees will work in self-organizing, self-managing teams using a common instance of Team Foundation Server 2010. Who should attend this course? This course is suitable for any member of a software development team – architect, programmer, database developer, tester, etc. Entire teams are encouraged to attend and experience the course together, but individuals are welcome too. Attendees will self-organize to form cross-functional Scrum teams. These teams require an aggregate of skills specific to the selected case study. Please see the last page of this document for specific details. Product Owners, ScrumMasters, and other stakeholders are welcome too, but keep in mind that everyone who attends will be expected to commit to work and pull their weight on a Scrum team. What should you know by the end of the course? Scrum will be experienced through a combination of lecture, demonstration, discussion, and hands-on exercises. Attendees will learn how to do Scrum correctly while being coached and critiqued by the instructor, in the following topic areas: Form effective teams Explore and understand legacy “Brownfield” architecture Define quality attributes, acceptance criteria, and “done” Create automated builds How to handle software hotfixes Verify that bugs are identified and eliminated Plan releases and sprints Estimate product backlog items Create and manage a sprint backlog Hold an effective sprint review Improve your process by using retrospectives Use emergent architecture to avoid technical debt Use Test Driven Development as a design tool Setup and leverage continuous integration Use Test Impact Analysis to decrease testing times Manage SQL Server development in an Agile way Use .NET and T-SQL refactoring effectively Build, deploy, and test SQL Server databases Create and manage test plans and cases Create, run, record, and play back manual tests Setup a branching strategy and branch code Write more maintainable code Identify and eliminate people and process dysfunctions Inspect and improve your team’s software development process What does the week look like? This course is a mix of lecture, demonstration, group discussion, simulation, and hands-on software development. The bulk of the course will be spent working as a team on a case study application delivering increments of new functionality in mini-sprints. Here is the week at a glance: Monday morning and most of the day Friday will be spent with the computers powered off, so you can focus on sharpening your game of Scrum and avoiding the common pitfalls when implementing it. The Sprints Timeboxing is a critical concept in Scrum as well as in this course. We expect each team and student to understand and obey all of the timeboxes. The timebox duration will always be clearly displayed during each activity. Expect the instructor to enforce it. Each of the ½ day sprints will roughly follow this schedule: Component Description Minutes Instruction Presentation and demonstration of new and relevant tools & practices 60 Sprint planning meeting Product owner presents backlog; each team commits to delivering functionality 10 Sprint planning meeting Each team determines how to build the functionality 10 The Sprint The team self-organizes and self-manages to complete their tasks 120 Sprint Review meeting Each team will present their increment of functionality to the other teams = 30 Sprint Retrospective A group retrospective meeting will be held to inspect and adapt 10 Each team is expected to self-organize and manage their own work during the sprint. Pairing is highly encouraged. The instructor/product owner will be available if there are questions or impediments, but will be hands-off by default. You should be prepared to communicate and work with your team members in order to achieve your sprint goal. If you have development-related questions or get stuck, your partner or team should be your first level of support. Module 1: INTRODUCTION This module provides a chance for the attendees to get to know the instructors as well as each other. The Professional Scrum Developer program, as well as the day by day agenda, will be explained. Finally, the Scrum team will be selected and assembled so that the forming, storming, norming, and performing can begin. Trainer and student introductions Professional Scrum Developer program Agenda Logistics Team formation Retrospective Module 2: SCRUMDAMENTALS This module provides a level-setting understanding of the Scrum framework including the roles, timeboxes, and artifacts. The team will then experience Scrum firsthand by simulating a multi-day sprint of product development, including planning, review, and retrospective meetings. Scrum overview Scrum roles Scrum timeboxes (ceremonies) Scrum artifacts Simulation Retrospective It’s required that you read Ken Schwaber’s Scrum Guide in preparation for this module and course. MODULE 3: IMPLEMENTING SCRUM IN VISUAL STUDIO 2010 This module demonstrates how to implement Scrum in Visual Studio 2010 using a Scrum process template*. The team will learn the mapping between the Scrum concepts and how they are implemented in the tool. After connecting to the shared Team Foundation Server, the team members will then return to the simulation – this time using Visual Studio to manage their product development. Mapping Scrum to Visual Studio 2010 User Story work items Task work items Bug work items Demonstration Simulation Retrospective Module 4: THE CASE STUDY In this module the team is introduced to their problem domain for the week. A kickoff meeting by the Product Owner (the instructor) will set the stage for the why and what that will take during the upcoming sprints. The team will then define the quality attributes of the project and their definition of “done.” The legacy application code will be downloaded, built, and explored, so that any bugs can be discovered and reported. Introduction to the case study Download the source code, build, and explore the application Define the quality attributes for the project Define “done” How to file effective bugs in Visual Studio 2010 Retrospective Module 5: HOTFIX This module drops the team directly into a Brownfield (legacy) experience by forcing them to analyze the existing application’s architecture and code in order to locate and fix the Product Owner’s high-priority bug(s). The team will learn best practices around finding, testing, fixing, validating, and closing a bug. How to use Architecture Explorer to visualize and explore Create a unit test to validate the existence of a bug Find and fix the bug Validate and close the bug Retrospective Module 6: PLANNING This short module introduces the team to release and sprint planning within Visual Studio 2010. The team will define and capture their goals as well as other important planning information. Release vs. Sprint planning Release planning and the Product Backlog Product Backlog prioritization Acceptance criteria and tests Sprint planning and the Sprint Backlog Creating and linking Sprint tasks Retrospective At this point the team will have the knowledge of Scrum, Visual Studio 2010, and the case study application to begin developing increments of potentially shippable functionality that meet their definition of done. Module 7: EMERGENT ARCHITECTURE This module introduces the architectural practices and tools a team can use to develop a valid design on which to develop new functionality. The teams will learn how Scrum supports good architecture and design practices. After the discussion, the teams will be presented with the product owner’s prioritized backlog so that they may select and commit to the functionality they can deliver in this sprint. Architecture and Scrum Emergent architecture Principles, patterns, and practices Visual Studio 2010 modeling tools UML and layer diagrams SPRINT 1 Retrospective Module 8: TEST DRIVEN DEVELOPMENT This module introduces Test Driven Development as a design tool and how to implement it using Visual Studio 2010. To maximize productivity and quality, a Scrum team should setup Continuous Integration to regularly build every team member’s code changes and run regression tests. Refactoring will also be defined and demonstrated in combination with Visual Studio’s Test Impact Analysis to efficiently re-run just those tests which were impacted by refactoring. Continuous integration Team Foundation Build Test Driven Development (TDD) Refactoring Test Impact Analysis SPRINT 2 Retrospective Module 9: AGILE DATABASE DEVELOPMENT This module lets the SQL Server database developers in on a little secret – they can be agile too. By using the database projects in Visual Studio 2010, the database developers can join the rest of the team. The students will see how to apply Agile database techniques within Visual Studio to support the SQL Server 2005/2008/2008R2 development lifecycle. Agile database development Visual Studio database projects Importing schema and scripts Building and deploying Generating data Unit testing SPRINT 3 Retrospective Module 10: SHIP IT Teams need to know that just because they like the functionality doesn’t mean the Product Owner will. This module revisits acceptance criteria as it pertains to acceptance testing. By refining acceptance criteria into manual test steps, team members can execute the tests, recording the results and reporting bugs in a number of ways. Manual tests will be defined and executed using the Microsoft Test Manager tool. As the Sprint completes and an increment of functionality is delivered, the team will also learn why and when they should create a branch of the codeline. Acceptance criteria Testing in Visual Studio 2010 Microsoft Test Manager Writing and running manual tests Branching SPRINT 4 Retrospective Module 11: OVERCOMING DYSFUNCTION This module introduces the many types of people, process, and tool dysfunctions that teams face in the real world. Many dysfunctions and scenarios will be identified, along with ideas and discussion for how a team might mitigate them. This module will enable you and your team to move toward independence and improve your game of Scrum when you depart class. Scrum-butts and flaccid Scrum Best practices working as a team Team challenges ScrumMaster challenges Product Owner challenges Stakeholder challenges Course Retrospective What will be expected of you and you team? This is a unique course in that it’s technically-focused, team-based, and employs timeboxes. It demands that the members of the teams self-organize and self-manage their own work to collaboratively develop increments of software. All attendees must commit to: Pay attention to all lectures and demonstrations Participate in team and group discussions Work collaboratively with other team members Obey the timebox for each activity Commit to work and do your best to deliver All teams should have these skills: Understanding of Scrum Familiarity with Visual Studio 201 C#, .NET 4.0 & ASP.NET 4.0 experience*  SQL Server 2008 development experience Software testing experience * Check with the instructor ahead of time for the exact technologies Self-organising teams Another unique attribute of this course is that it’s a technical training class being delivered to teams of developers, not pairs, and not individuals. Ideally, your actual software development team will attend the training to ensure that all necessary skills are covered. However, if you wish to attend an open enrolment course alone or with just a couple of colleagues, realize that you may be placed on a team with other attendees. The instructor will do his or her best to ensure that each team is cross-functional to tackle the case study, but there are no guarantees. You may be required to try a new role, learn a new skill, or pair with somebody unfamiliar to you. This is just good Scrum! Who should NOT take this course? Because of the nature of this course, as explained above, certain types of people should probably not attend this course: Students requiring command and control style instruction – there are no prescriptive/step-by-step (think traditional Microsoft Learning) labs in this course Students who are unwilling to work within a timebox Students who are unwilling to work collaboratively on a team Students who don’t have any skill in any of the software development disciplines Students who are unable to commit fully to their team – not only will this diminish the student’s learning experience, but it will also impact their team’s learning experience Find a course and register Download this syllabus Download the Scrum Guide Technorati Tags: Scrum,SSW,Pro Scrum Dev

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• Juju Openstack bundle: Can't launch an instance

  - by user281985

  Deployed bundle:~makyo/openstack/2/openstack, on top of 7 physical boxes and 3 virtual ones. After changing vip_iface strings to point to right devices, e.g., br0 instead of eth0, and defining "/mnt/loopback|30G", in Cinder's block-device string, am able to navigate through openstack dashboard, error free. Following http://docs.openstack.org/grizzly/openstack-compute/install/apt/content/running-an-instance.html instructions, attempted to launch cirros 0.3.1 image; however, novalist shows the instance in error state. ubuntu@node7:~$ nova --debug boot --flavor 1 --image 28bed1bc-bc1c-4533-beee-8e0428ad40dd --key_name key2 --security_group default cirros REQ: curl -i http://keyStone.IP:5000/v2.0/tokens -X POST -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-novaclient" -d '{"auth": {"tenantName": "admin", "passwordCredentials": {"username": "admin", "password": "openstack"}}}' INFO (connectionpool:191) Starting new HTTP connection (1): keyStone.IP DEBUG (connectionpool:283) "POST /v2.0/tokens HTTP/1.1" 200 None RESP: [200] {'date': 'Tue, 10 Jun 2014 00:01:02 GMT', 'transfer-encoding': 'chunked', 'vary': 'X-Auth-Token', 'content-type': 'application/json'} RESP BODY: {"access": {"token": {"expires": "2014-06-11T00:01:02Z", "id": "3eefa1837d984426a633fe09259a1534", "tenant": {"description": "Created by Juju", "enabled": true, "id": "08cff06d13b74492b780d9ceed699239", "name": "admin"}}, "serviceCatalog": [{"endpoints": [{"adminURL": "http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239", "region": "RegionOne", "internalURL": "http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239", "publicURL": "http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239"}], "endpoints_links": [], "type": "compute", "name": "nova"}, {"endpoints": [{"adminURL": "http://nova.cloud.controller:9696", "region": "RegionOne", "internalURL": "http://nova.cloud.controller:9696", "publicURL": "http://nova.cloud.controller:9696"}], "endpoints_links": [], "type": "network", "name": "quantum"}, {"endpoints": [{"adminURL": "http://nova.cloud.controller:3333", "region": "RegionOne", "internalURL": "http://nova.cloud.controller:3333", "publicURL": "http://nova.cloud.controller:3333"}], "endpoints_links": [], "type": "s3", "name": "s3"}, {"endpoints": [{"adminURL": "http://i.p.s.36:9292", "region": "RegionOne", "internalURL": "http://i.p.s.36:9292", "publicURL": "http://i.p.s.36:9292"}], "endpoints_links": [], "type": "image", "name": "glance"}, {"endpoints": [{"adminURL": "http://i.p.s.39:8776/v1/08cff06d13b74492b780d9ceed699239", "region": "RegionOne", "internalURL": "http://i.p.s.39:8776/v1/08cff06d13b74492b780d9ceed699239", "publicURL": "http://i.p.s.39:8776/v1/08cff06d13b74492b780d9ceed699239"}], "endpoints_links": [], "type": "volume", "name": "cinder"}, {"endpoints": [{"adminURL": "http://nova.cloud.controller:8773/services/Cloud", "region": "RegionOne", "internalURL": "http://nova.cloud.controller:8773/services/Cloud", "publicURL": "http://nova.cloud.controller:8773/services/Cloud"}], "endpoints_links": [], "type": "ec2", "name": "ec2"}, {"endpoints": [{"adminURL": "http://keyStone.IP:35357/v2.0", "region": "RegionOne", "internalURL": "http://keyStone.IP:5000/v2.0", "publicURL": "http://i.p.s.44:5000/v2.0"}], "endpoints_links": [], "type": "identity", "name": "keystone"}], "user": {"username": "admin", "roles_links": [], "id": "b3730a52a32e40f0a9500440d1ef1c7d", "roles": [{"id": "e020001eb9a049f4a16540238ab158aa", "name": "Admin"}, {"id": "b84fbff4d5554d53bbbffdaad66b56cb", "name": "KeystoneServiceAdmin"}, {"id": "129c8b49d42b4f0796109aaef2069aa9", "name": "KeystoneAdmin"}], "name": "admin"}}} REQ: curl -i http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd -X GET -H "X-Auth-Project-Id: admin" -H "User-Agent: python-novaclient" -H "Accept: application/json" -H "X-Auth-Token: 3eefa1837d984426a633fe09259a1534" INFO (connectionpool:191) Starting new HTTP connection (1): nova.cloud.controller DEBUG (connectionpool:283) "GET /v1.1/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd HTTP/1.1" 200 719 RESP: [200] {'date': 'Tue, 10 Jun 2014 00:01:03 GMT', 'x-compute-request-id': 'req-7f3459f8-d3d5-47f1-97a3-8407a4419a69', 'content-type': 'application/json', 'content-length': '719'} RESP BODY: {"image": {"status": "ACTIVE", "updated": "2014-06-09T22:17:54Z", "links": [{"href": "http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd", "rel": "self"}, {"href": "http://nova.cloud.controller:8774/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd", "rel": "bookmark"}, {"href": "http://External.Public.Port:9292/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd", "type": "application/vnd.openstack.image", "rel": "alternate"}], "id": "28bed1bc-bc1c-4533-beee-8e0428ad40dd", "OS-EXT-IMG-SIZE:size": 13147648, "name": "Cirros 0.3.1", "created": "2014-06-09T22:17:54Z", "minDisk": 0, "progress": 100, "minRam": 0, "metadata": {}}} REQ: curl -i http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/flavors/1 -X GET -H "X-Auth-Project-Id: admin" -H "User-Agent: python-novaclient" -H "Accept: application/json" -H "X-Auth-Token: 3eefa1837d984426a633fe09259a1534" INFO (connectionpool:191) Starting new HTTP connection (1): nova.cloud.controller DEBUG (connectionpool:283) "GET /v1.1/08cff06d13b74492b780d9ceed699239/flavors/1 HTTP/1.1" 200 418 RESP: [200] {'date': 'Tue, 10 Jun 2014 00:01:04 GMT', 'x-compute-request-id': 'req-2c153110-6969-4f3a-b51c-8f1a6ce75bee', 'content-type': 'application/json', 'content-length': '418'} RESP BODY: {"flavor": {"name": "m1.tiny", "links": [{"href": "http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/flavors/1", "rel": "self"}, {"href": "http://nova.cloud.controller:8774/08cff06d13b74492b780d9ceed699239/flavors/1", "rel": "bookmark"}], "ram": 512, "OS-FLV-DISABLED:disabled": false, "vcpus": 1, "swap": "", "os-flavor-access:is_public": true, "rxtx_factor": 1.0, "OS-FLV-EXT-DATA:ephemeral": 0, "disk": 0, "id": "1"}} REQ: curl -i http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/servers -X POST -H "X-Auth-Project-Id: admin" -H "User-Agent: python-novaclient" -H "Content-Type: application/json" -H "Accept: application/json" -H "X-Auth-Token: 3eefa1837d984426a633fe09259a1534" -d '{"server": {"name": "cirros", "imageRef": "28bed1bc-bc1c-4533-beee-8e0428ad40dd", "key_name": "key2", "flavorRef": "1", "max_count": 1, "min_count": 1, "security_groups": [{"name": "default"}]}}' INFO (connectionpool:191) Starting new HTTP connection (1): nova.cloud.controller DEBUG (connectionpool:283) "POST /v1.1/08cff06d13b74492b780d9ceed699239/servers HTTP/1.1" 202 436 RESP: [202] {'date': 'Tue, 10 Jun 2014 00:01:05 GMT', 'x-compute-request-id': 'req-41e53086-6454-4efb-bb35-a30dc2c780be', 'content-type': 'application/json', 'location': 'http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/servers/2eb5e3ad-3044-41c1-bbb7-10f398f83e43', 'content-length': '436'} RESP BODY: {"server": {"security_groups": [{"name": "default"}], "OS-DCF:diskConfig": "MANUAL", "id": "2eb5e3ad-3044-41c1-bbb7-10f398f83e43", "links": [{"href": "http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/servers/2eb5e3ad-3044-41c1-bbb7-10f398f83e43", "rel": "self"}, {"href": "http://nova.cloud.controller:8774/08cff06d13b74492b780d9ceed699239/servers/2eb5e3ad-3044-41c1-bbb7-10f398f83e43", "rel": "bookmark"}], "adminPass": "oFRbvRqif2C8"}} REQ: curl -i http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/servers/2eb5e3ad-3044-41c1-bbb7-10f398f83e43 -X GET -H "X-Auth-Project-Id: admin" -H "User-Agent: python-novaclient" -H "Accept: application/json" -H "X-Auth-Token: 3eefa1837d984426a633fe09259a1534" INFO (connectionpool:191) Starting new HTTP connection (1): nova.cloud.controller DEBUG (connectionpool:283) "GET /v1.1/08cff06d13b74492b780d9ceed699239/servers/2eb5e3ad-3044-41c1-bbb7-10f398f83e43 HTTP/1.1" 200 1349 RESP: [200] {'date': 'Tue, 10 Jun 2014 00:01:05 GMT', 'x-compute-request-id': 'req-d91d0858-7030-469d-8e55-40e05e4d00fd', 'content-type': 'application/json', 'content-length': '1349'} RESP BODY: {"server": {"status": "BUILD", "updated": "2014-06-10T00:01:05Z", "hostId": "", "OS-EXT-SRV-ATTR:host": null, "addresses": {}, "links": [{"href": "http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/servers/2eb5e3ad-3044-41c1-bbb7-10f398f83e43", "rel": "self"}, {"href": "http://nova.cloud.controller:8774/08cff06d13b74492b780d9ceed699239/servers/2eb5e3ad-3044-41c1-bbb7-10f398f83e43", "rel": "bookmark"}], "key_name": "key2", "image": {"id": "28bed1bc-bc1c-4533-beee-8e0428ad40dd", "links": [{"href": "http://nova.cloud.controller:8774/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd", "rel": "bookmark"}]}, "OS-EXT-STS:task_state": "scheduling", "OS-EXT-STS:vm_state": "building", "OS-EXT-SRV-ATTR:instance_name": "instance-00000004", "OS-EXT-SRV-ATTR:hypervisor_hostname": null, "flavor": {"id": "1", "links": [{"href": "http://nova.cloud.controller:8774/08cff06d13b74492b780d9ceed699239/flavors/1", "rel": "bookmark"}]}, "id": "2eb5e3ad-3044-41c1-bbb7-10f398f83e43", "security_groups": [{"name": "default"}], "OS-EXT-AZ:availability_zone": "nova", "user_id": "b3730a52a32e40f0a9500440d1ef1c7d", "name": "cirros", "created": "2014-06-10T00:01:04Z", "tenant_id": "08cff06d13b74492b780d9ceed699239", "OS-DCF:diskConfig": "MANUAL", "accessIPv4": "", "accessIPv6": "", "progress": 0, "OS-EXT-STS:power_state": 0, "config_drive": "", "metadata": {}}} REQ: curl -i http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/flavors/1 -X GET -H "X-Auth-Project-Id: admin" -H "User-Agent: python-novaclient" -H "Accept: application/json" -H "X-Auth-Token: 3eefa1837d984426a633fe09259a1534" INFO (connectionpool:191) Starting new HTTP connection (1): nova.cloud.controller DEBUG (connectionpool:283) "GET /v1.1/08cff06d13b74492b780d9ceed699239/flavors/1 HTTP/1.1" 200 418 RESP: [200] {'date': 'Tue, 10 Jun 2014 00:01:05 GMT', 'x-compute-request-id': 'req-896c0120-1102-4408-9e09-cd628f2dd699', 'content-type': 'application/json', 'content-length': '418'} RESP BODY: {"flavor": {"name": "m1.tiny", "links": [{"href": "http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/flavors/1", "rel": "self"}, {"href": "http://nova.cloud.controller:8774/08cff06d13b74492b780d9ceed699239/flavors/1", "rel": "bookmark"}], "ram": 512, "OS-FLV-DISABLED:disabled": false, "vcpus": 1, "swap": "", "os-flavor-access:is_public": true, "rxtx_factor": 1.0, "OS-FLV-EXT-DATA:ephemeral": 0, "disk": 0, "id": "1"}} REQ: curl -i http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd -X GET -H "X-Auth-Project-Id: admin" -H "User-Agent: python-novaclient" -H "Accept: application/json" -H "X-Auth-Token: 3eefa1837d984426a633fe09259a1534" INFO (connectionpool:191) Starting new HTTP connection (1): nova.cloud.controller DEBUG (connectionpool:283) "GET /v1.1/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd HTTP/1.1" 200 719 RESP: [200] {'date': 'Tue, 10 Jun 2014 00:01:05 GMT', 'x-compute-request-id': 'req-454e9651-c247-4d31-8049-6b254de050ae', 'content-type': 'application/json', 'content-length': '719'} RESP BODY: {"image": {"status": "ACTIVE", "updated": "2014-06-09T22:17:54Z", "links": [{"href": "http://nova.cloud.controller:8774/v1.1/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd", "rel": "self"}, {"href": "http://nova.cloud.controller:8774/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd", "rel": "bookmark"}, {"href": "http://External.Public.Port:9292/08cff06d13b74492b780d9ceed699239/images/28bed1bc-bc1c-4533-beee-8e0428ad40dd", "type": "application/vnd.openstack.image", "rel": "alternate"}], "id": "28bed1bc-bc1c-4533-beee-8e0428ad40dd", "OS-EXT-IMG-SIZE:size": 13147648, "name": "Cirros 0.3.1", "created": "2014-06-09T22:17:54Z", "minDisk": 0, "progress": 100, "minRam": 0, "metadata": {}}} +-------------------------------------+--------------------------------------+ | Property | Value | +-------------------------------------+--------------------------------------+ | OS-EXT-STS:task_state | scheduling | | image | Cirros 0.3.1 | | OS-EXT-STS:vm_state | building | | OS-EXT-SRV-ATTR:instance_name | instance-00000004 | | flavor | m1.tiny | | id | 2eb5e3ad-3044-41c1-bbb7-10f398f83e43 | | security_groups | [{u'name': u'default'}] | | user_id | b3730a52a32e40f0a9500440d1ef1c7d | | OS-DCF:diskConfig | MANUAL | | accessIPv4 | | | accessIPv6 | | | progress | 0 | | OS-EXT-STS:power_state | 0 | | OS-EXT-AZ:availability_zone | nova | | config_drive | | | status | BUILD | | updated | 2014-06-10T00:01:05Z | | hostId | | | OS-EXT-SRV-ATTR:host | None | | key_name | key2 | | OS-EXT-SRV-ATTR:hypervisor_hostname | None | | name | cirros | | adminPass | oFRbvRqif2C8 | | tenant_id | 08cff06d13b74492b780d9ceed699239 | | created | 2014-06-10T00:01:04Z | | metadata | {} | +-------------------------------------+--------------------------------------+ ubuntu@node7:~$ ubuntu@node7:~$ nova list +--------------------------------------+--------+--------+----------+ | ID | Name | Status | Networks | +--------------------------------------+--------+--------+----------+ | 2eb5e3ad-3044-41c1-bbb7-10f398f83e43 | cirros | ERROR | | +--------------------------------------+--------+--------+----------+ ubuntu@node7:~$ var/log/nova/nova-compute.log shows the following error: ... 2014-06-10 00:01:06.048 AUDIT nova.compute.claims [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Attempting claim: memory 512 MB, disk 0 GB, VCPUs 1 2014-06-10 00:01:06.049 AUDIT nova.compute.claims [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Total Memory: 3885 MB, used: 512 MB 2014-06-10 00:01:06.049 AUDIT nova.compute.claims [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Memory limit: 5827 MB, free: 5315 MB 2014-06-10 00:01:06.049 AUDIT nova.compute.claims [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Total Disk: 146 GB, used: 0 GB 2014-06-10 00:01:06.050 AUDIT nova.compute.claims [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Disk limit not specified, defaulting to unlimited 2014-06-10 00:01:06.050 AUDIT nova.compute.claims [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Total CPU: 2 VCPUs, used: 0 VCPUs 2014-06-10 00:01:06.050 AUDIT nova.compute.claims [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] CPU limit not specified, defaulting to unlimited 2014-06-10 00:01:06.051 AUDIT nova.compute.claims [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Claim successful 2014-06-10 00:01:06.963 WARNING nova.network.quantumv2.api [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] No network configured! 2014-06-10 00:01:08.347 ERROR nova.compute.manager [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Instance failed to spawn 2014-06-10 00:01:08.347 32223 TRACE nova.compute.manager [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Traceback (most recent call last): 2014-06-10 00:01:08.347 32223 TRACE nova.compute.manager [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1118, in _spawn 2014-06-10 00:01:08.347 32223 TRACE nova.compute.manager [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] self._legacy_nw_info(network_info), 2014-06-10 00:01:08.347 32223 TRACE nova.compute.manager [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 703, in _legacy_nw_info 2014-06-10 00:01:08.347 32223 TRACE nova.compute.manager [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] network_info = network_info.legacy() 2014-06-10 00:01:08.347 32223 TRACE nova.compute.manager [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] AttributeError: 'list' object has no attribute 'legacy' 2014-06-10 00:01:08.347 32223 TRACE nova.compute.manager [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] 2014-06-10 00:01:08.919 AUDIT nova.compute.manager [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Terminating instance 2014-06-10 00:01:09.712 32223 ERROR nova.virt.libvirt.driver [-] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] During wait destroy, instance disappeared. 2014-06-10 00:01:09.718 INFO nova.virt.libvirt.firewall [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Attempted to unfilter instance which is not filtered 2014-06-10 00:01:09.719 INFO nova.virt.libvirt.driver [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Deleting instance files /var/lib/nova/instances/2eb5e3ad-3044-41c1-bbb7-10f398f83e43 2014-06-10 00:01:10.044 ERROR nova.compute.manager [req-41e53086-6454-4efb-bb35-a30dc2c780be b3730a52a32e40f0a9500440d1ef1c7d 08cff06d13b74492b780d9ceed699239] [instance: 2eb5e3ad-3044-41c1-bbb7-10f398f83e43] Error: ['Traceback (most recent call last):\n', ' File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 864, in _run_instance\n set_access_ip=set_access_ip)\n', ' File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1123, in _spawn\n LOG.exception(_(\'Instance failed to spawn\'), instance=instance)\n', ' File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__\n self.gen.next()\n', ' File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1118, in _spawn\n self._legacy_nw_info(network_info),\n', ' File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 703, in _legacy_nw_info\n network_info = network_info.legacy()\n', "AttributeError: 'list' object has no attribute 'legacy'\n"] 2014-06-10 00:01:40.951 32223 AUDIT nova.compute.resource_tracker [-] Auditing locally available compute resources 2014-06-10 00:01:41.072 32223 AUDIT nova.compute.resource_tracker [-] Free ram (MB): 2861 2014-06-10 00:01:41.072 32223 AUDIT nova.compute.resource_tracker [-] Free disk (GB): 146 2014-06-10 00:01:41.073 32223 AUDIT nova.compute.resource_tracker [-] Free VCPUS: 1 2014-06-10 00:01:41.262 32223 INFO nova.compute.resource_tracker [-] Compute_service record updated for node5:node5.maas ... Can't seem to find any entries in quantum.conf related to "legacy". Any help would be appreciated. Cheers,

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• Android edtftpj/PRo SFTP heap worker problem

  - by Mr. Kakakuwa Bird

  Hi I am using edtftpj-pro3.1 trial copy in my android app to make SFTP connection with the server. After few connections with the server with 5-6 file transfers, my app is crashing with following exception. Is it causing the problem or what could be the problem?? I tried setParallelMode(false) in SSHFTPClient, but it is not working. Exception i'm getting is, 05-31 18:28:12.661: ERROR/dalvikvm(589): HeapWorker is wedged: 10173ms spent inside Lcom/enterprisedt/net/j2ssh/sftp/SftpFileInputStream;.finalize()V 05-31 18:28:12.661: INFO/dalvikvm(589): DALVIK THREADS: 05-31 18:28:12.661: INFO/dalvikvm(589): "main" prio=5 tid=3 WAIT 05-31 18:28:12.661: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=N obj=0x4001b260 self=0xbd18 05-31 18:28:12.661: INFO/dalvikvm(589): | sysTid=589 nice=0 sched=0/0 cgrp=default handle=-1343993192 05-31 18:28:12.661: INFO/dalvikvm(589): at java.lang.Object.wait(Native Method) 05-31 18:28:12.661: INFO/dalvikvm(589): - waiting on <0x122d70 (a android.os.MessageQueue) 05-31 18:28:12.661: INFO/dalvikvm(589): at java.lang.Object.wait(Object.java:288) 05-31 18:28:12.661: INFO/dalvikvm(589): at android.os.MessageQueue.next(MessageQueue.java:148) 05-31 18:28:12.661: INFO/dalvikvm(589): at android.os.Looper.loop(Looper.java:110) 05-31 18:28:12.661: INFO/dalvikvm(589): at android.app.ActivityThread.main(ActivityThread.java:4363) 05-31 18:28:12.661: INFO/dalvikvm(589): at java.lang.reflect.Method.invokeNative(Native Method) 05-31 18:28:12.661: INFO/dalvikvm(589): at java.lang.reflect.Method.invoke(Method.java:521) 05-31 18:28:12.661: INFO/dalvikvm(589): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 05-31 18:28:12.661: INFO/dalvikvm(589): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 05-31 18:28:12.661: INFO/dalvikvm(589): at dalvik.system.NativeStart.main(Native Method) 05-31 18:28:12.671: INFO/dalvikvm(589): "Transport protocol 1" daemon prio=5 tid=29 NATIVE 05-31 18:28:12.671: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=N obj=0x44774768 self=0x3a7938 05-31 18:28:12.671: INFO/dalvikvm(589): | sysTid=605 nice=0 sched=0/0 cgrp=default handle=3834600 05-31 18:28:12.671: INFO/dalvikvm(589): at org.apache.harmony.luni.platform.OSNetworkSystem.receiveStreamImpl(Native Method) 05-31 18:28:12.671: INFO/dalvikvm(589): at org.apache.harmony.luni.platform.OSNetworkSystem.receiveStream(OSNetworkSystem.java:478) 05-31 18:28:12.671: INFO/dalvikvm(589): at org.apache.harmony.luni.net.PlainSocketImpl.read(PlainSocketImpl.java:565) 05-31 18:28:12.671: INFO/dalvikvm(589): at org.apache.harmony.luni.net.SocketInputStream.read(SocketInputStream.java:87) 05-31 18:28:12.671: INFO/dalvikvm(589): at org.apache.harmony.luni.net.SocketInputStream.read(SocketInputStream.java:67) 05-31 18:28:12.671: INFO/dalvikvm(589): at java.io.BufferedInputStream.fillbuf(BufferedInputStream.java:157) 05-31 18:28:12.671: INFO/dalvikvm(589): at java.io.BufferedInputStream.read(BufferedInputStream.java:346) 05-31 18:28:12.671: INFO/dalvikvm(589): at java.io.BufferedInputStream.read(BufferedInputStream.java:341) 05-31 18:28:12.671: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.transport.A.A((null):-1) 05-31 18:28:12.671: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.transport.A.B((null):-1) 05-31 18:28:12.671: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.transport.TransportProtocolCommon.processMessages((null):-1) 05-31 18:28:12.671: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.transport.TransportProtocolCommon.startBinaryPacketProtocol((null):-1) 05-31 18:28:12.671: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.transport.TransportProtocolCommon.run((null):-1) 05-31 18:28:12.671: INFO/dalvikvm(589): at java.lang.Thread.run(Thread.java:1096) 05-31 18:28:12.671: INFO/dalvikvm(589): "StreamFrameSender" prio=5 tid=27 TIMED_WAIT 05-31 18:28:12.671: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=N obj=0x44750a60 self=0x3964d8 05-31 18:28:12.671: INFO/dalvikvm(589): | sysTid=603 nice=0 sched=0/0 cgrp=default handle=3761648 05-31 18:28:12.671: INFO/dalvikvm(589): at java.lang.Object.wait(Native Method) 05-31 18:28:12.671: INFO/dalvikvm(589): - waiting on <0x399478 (a com.corventis.gateway.ppp.StreamFrameSender) 05-31 18:28:12.671: INFO/dalvikvm(589): at java.lang.Object.wait(Object.java:326) 05-31 18:28:12.671: INFO/dalvikvm(589): at com.corventis.gateway.ppp.StreamFrameSender.run(StreamFrameSender.java:154) 05-31 18:28:12.671: INFO/dalvikvm(589): at com.corventis.gateway.util.MonitoredRunnable.run(MonitoredRunnable.java:41) 05-31 18:28:12.671: INFO/dalvikvm(589): at java.lang.Thread.run(Thread.java:1096) 05-31 18:28:12.671: INFO/dalvikvm(589): "SftpActiveWorker" prio=5 tid=25 TIMED_WAIT 05-31 18:28:12.671: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=N obj=0x447522b0 self=0x398e00 05-31 18:28:12.671: INFO/dalvikvm(589): | sysTid=604 nice=0 sched=0/0 cgrp=default handle=3762704 05-31 18:28:12.671: INFO/dalvikvm(589): at java.lang.Object.wait(Native Method) 05-31 18:28:12.671: INFO/dalvikvm(589): - waiting on <0x3962d8 (a com.corventis.gateway.hostcommunicator.SftpActiveWorker) 05-31 18:28:12.671: INFO/dalvikvm(589): at java.lang.Object.wait(Object.java:326) 05-31 18:28:12.671: INFO/dalvikvm(589): at com.corventis.gateway.hostcommunicator.SftpActiveWorker.run(SftpActiveWorker.java:151) 05-31 18:28:12.671: INFO/dalvikvm(589): at com.corventis.gateway.util.MonitoredRunnable.run(MonitoredRunnable.java:41) 05-31 18:28:12.671: INFO/dalvikvm(589): at java.lang.Thread.run(Thread.java:1096) 05-31 18:28:12.671: INFO/dalvikvm(589): "Thread-12" prio=5 tid=23 NATIVE 05-31 18:28:12.671: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=N obj=0x4474aca8 self=0x115690 05-31 18:28:12.671: INFO/dalvikvm(589): | sysTid=602 nice=0 sched=0/0 cgrp=default handle=878120 05-31 18:28:12.671: INFO/dalvikvm(589): at android.bluetooth.BluetoothSocket.acceptNative(Native Method) 05-31 18:28:12.681: INFO/dalvikvm(589): at android.bluetooth.BluetoothSocket.accept(BluetoothSocket.java:287) 05-31 18:28:12.681: INFO/dalvikvm(589): at android.bluetooth.BluetoothServerSocket.accept(BluetoothServerSocket.java:105) 05-31 18:28:12.681: INFO/dalvikvm(589): at android.bluetooth.BluetoothServerSocket.accept(BluetoothServerSocket.java:91) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.bluetooth.BluetoothManager.openPort(BluetoothManager.java:215) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.bluetooth.BluetoothManager.open(BluetoothManager.java:84) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.patchcommunicator.PatchCommunicator.open(PatchCommunicator.java:123) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.patchcommunicator.PatchCommunicatorRunnable.run(PatchCommunicatorRunnable.java:134) 05-31 18:28:12.681: INFO/dalvikvm(589): at java.lang.Thread.run(Thread.java:1096) 05-31 18:28:12.681: INFO/dalvikvm(589): "HfGatewayApplication" prio=5 tid=21 RUNNABLE 05-31 18:28:12.681: INFO/dalvikvm(589): | group="main" sCount=0 dsCount=0 s=N obj=0x4472d9b0 self=0x120928 05-31 18:28:12.681: INFO/dalvikvm(589): | sysTid=601 nice=0 sched=0/0 cgrp=default handle=1264672 05-31 18:28:12.681: INFO/dalvikvm(589): at com.jcraft.jzlib.Deflate.deflateInit2(Deflate.java:~1361) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.jcraft.jzlib.Deflate.deflateInit(Deflate.java:1316) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.jcraft.jzlib.ZStream.deflateInit(ZStream.java:127) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.jcraft.jzlib.ZStream.deflateInit(ZStream.java:120) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.jcraft.jzlib.ZOutputStream.(ZOutputStream.java:62) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.zipfile.ZipStorer.addStream(ZipStorer.java:211) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.zipfile.ZipStorer.createZip(ZipStorer.java:127) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.hostcommunicator.HostCommunicator.scanAndCompress(HostCommunicator.java:453) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.hostcommunicator.HostCommunicator.doWork(HostCommunicator.java:1434) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.hf.HfGatewayApplication.doWork(HfGatewayApplication.java:621) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.hf.HfGatewayApplication.run(HfGatewayApplication.java:546) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.util.MonitoredRunnable.run(MonitoredRunnable.java:41) 05-31 18:28:12.681: INFO/dalvikvm(589): at java.lang.Thread.run(Thread.java:1096) 05-31 18:28:12.681: INFO/dalvikvm(589): "Thread-10" prio=5 tid=19 TIMED_WAIT 05-31 18:28:12.681: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=N obj=0x447287f8 self=0x1451b8 05-31 18:28:12.681: INFO/dalvikvm(589): | sysTid=598 nice=0 sched=0/0 cgrp=default handle=1331920 05-31 18:28:12.681: INFO/dalvikvm(589): at java.lang.VMThread.sleep(Native Method) 05-31 18:28:12.681: INFO/dalvikvm(589): at java.lang.Thread.sleep(Thread.java:1306) 05-31 18:28:12.681: INFO/dalvikvm(589): at java.lang.Thread.sleep(Thread.java:1286) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.util.Watchdog.run(Watchdog.java:167) 05-31 18:28:12.681: INFO/dalvikvm(589): at java.lang.Thread.run(Thread.java:1096) 05-31 18:28:12.681: INFO/dalvikvm(589): "Thread-9" prio=5 tid=17 RUNNABLE 05-31 18:28:12.681: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=Y obj=0x44722c90 self=0x114e20 05-31 18:28:12.681: INFO/dalvikvm(589): | sysTid=597 nice=0 sched=0/0 cgrp=default handle=1200048 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.time.Time.currentTimeMillis(Time.java:~77) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.patchcommunicator.PatchCommunicatorState$1.run(PatchCommunicatorState.java:27) 05-31 18:28:12.681: INFO/dalvikvm(589): "Thread-8" prio=5 tid=15 RUNNABLE 05-31 18:28:12.681: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=Y obj=0x44722430 self=0x124dd0 05-31 18:28:12.681: INFO/dalvikvm(589): | sysTid=596 nice=0 sched=0/0 cgrp=default handle=1199848 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.time.Time.currentTimeMillis(Time.java:~80) 05-31 18:28:12.681: INFO/dalvikvm(589): at com.corventis.gateway.hostcommunicator.HostCommunicatorState$1.run(HostCommunicatorState.java:35) 05-31 18:28:12.681: INFO/dalvikvm(589): "Binder Thread #2" prio=5 tid=13 NATIVE 05-31 18:28:12.681: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=N obj=0x4471ccc0 self=0x149b60 05-31 18:28:12.681: INFO/dalvikvm(589): | sysTid=595 nice=0 sched=0/0 cgrp=default handle=1317992 05-31 18:28:12.681: INFO/dalvikvm(589): at dalvik.system.NativeStart.run(Native Method) 05-31 18:28:12.681: INFO/dalvikvm(589): "Binder Thread #1" prio=5 tid=11 NATIVE 05-31 18:28:12.681: INFO/dalvikvm(589): | group="main" sCount=1 dsCount=0 s=N obj=0x447159a8 self=0x123298 05-31 18:28:12.681: INFO/dalvikvm(589): | sysTid=594 nice=0 sched=0/0 cgrp=default handle=1164896 05-31 18:28:12.681: INFO/dalvikvm(589): at dalvik.system.NativeStart.run(Native Method) 05-31 18:28:12.691: INFO/dalvikvm(589): "JDWP" daemon prio=5 tid=9 VMWAIT 05-31 18:28:12.691: INFO/dalvikvm(589): | group="system" sCount=1 dsCount=0 s=N obj=0x4470f2a0 self=0x141a90 05-31 18:28:12.691: INFO/dalvikvm(589): | sysTid=593 nice=0 sched=0/0 cgrp=default handle=1316864 05-31 18:28:12.691: INFO/dalvikvm(589): at dalvik.system.NativeStart.run(Native Method) 05-31 18:28:12.691: INFO/dalvikvm(589): "Signal Catcher" daemon prio=5 tid=7 VMWAIT 05-31 18:28:12.691: INFO/dalvikvm(589): | group="system" sCount=1 dsCount=0 s=N obj=0x4470f1e8 self=0x124970 05-31 18:28:12.691: INFO/dalvikvm(589): | sysTid=592 nice=0 sched=0/0 cgrp=default handle=1316800 05-31 18:28:12.691: INFO/dalvikvm(589): at dalvik.system.NativeStart.run(Native Method) 05-31 18:28:12.691: INFO/dalvikvm(589): "HeapWorker" daemon prio=5 tid=5 MONITOR 05-31 18:28:12.691: INFO/dalvikvm(589): | group="system" sCount=1 dsCount=0 s=N obj=0x431b4550 self=0x141670 05-31 18:28:12.691: INFO/dalvikvm(589): | sysTid=591 nice=0 sched=0/0 cgrp=default handle=1316400 05-31 18:28:12.691: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.sftp.SftpSubsystemClient.closeHandle((null):~-1) 05-31 18:28:12.691: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.sftp.SftpSubsystemClient.closeFile((null):-1) 05-31 18:28:12.691: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.sftp.SftpFile.close((null):-1) 05-31 18:28:12.691: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.sftp.SftpFileInputStream.close((null):-1) 05-31 18:28:12.691: INFO/dalvikvm(589): at com.enterprisedt.net.j2ssh.sftp.SftpFileInputStream.finalize((null):-1) 05-31 18:28:12.691: INFO/dalvikvm(589): at dalvik.system.NativeStart.run(Native Method) 05-31 18:28:12.691: ERROR/dalvikvm(589): VM aborting 05-31 18:28:12.801: INFO/DEBUG(49): * ** * ** * ** * ** * ** * 05-31 18:28:12.801: INFO/DEBUG(49): Build fingerprint: 'google/passion/passion/mahimahi:2.1-update1/ERE27/24178:user/release-keys' 05-31 18:28:12.801: INFO/DEBUG(49): pid: 589, tid: 601 com.corventis.gateway.hf <<< 05-31 18:28:12.801: INFO/DEBUG(49): signal 11 (SIGSEGV), fault addr deadd00d 05-31 18:28:12.801: INFO/DEBUG(49): r0 00000026 r1 afe13329 r2 afe13329 r3 00000000 05-31 18:28:12.801: INFO/DEBUG(49): r4 ad081f50 r5 400091e8 r6 009b3a6a r7 00000000 05-31 18:28:12.801: INFO/DEBUG(49): r8 000002e8 r9 ad082ba0 10 ad082ba0 fp 00000000 05-31 18:28:12.801: INFO/DEBUG(49): ip deadd00d sp 46937c58 lr afe14373 pc ad035b4c cpsr 20000030 05-31 18:28:12.851: INFO/DEBUG(49): #00 pc 00035b4c /system/lib/libdvm.so 05-31 18:28:12.861: INFO/DEBUG(49): #01 pc 00044d7c /system/lib/libdvm.so 05-31 18:28:12.861: INFO/DEBUG(49): #02 pc 000162e4 /system/lib/libdvm.so 05-31 18:28:12.861: INFO/DEBUG(49): #03 pc 00016b60 /system/lib/libdvm.so 05-31 18:28:12.861: INFO/DEBUG(49): #04 pc 00016ce0 /system/lib/libdvm.so 05-31 18:28:12.861: INFO/DEBUG(49): #05 pc 00057b64 /system/lib/libdvm.so 05-31 18:28:12.861: INFO/DEBUG(49): #06 pc 00057cc0 /system/lib/libdvm.so 05-31 18:28:12.871: INFO/DEBUG(49): #07 pc 00057dd4 /system/lib/libdvm.so 05-31 18:28:12.871: INFO/DEBUG(49): #08 pc 00012ffc /system/lib/libdvm.so 05-31 18:28:12.871: INFO/DEBUG(49): #09 pc 00019338 /system/lib/libdvm.so 05-31 18:28:12.871: INFO/DEBUG(49): #10 pc 00018804 /system/lib/libdvm.so 05-31 18:28:12.871: INFO/DEBUG(49): #11 pc 0004eed0 /system/lib/libdvm.so 05-31 18:28:12.871: INFO/DEBUG(49): #12 pc 0004eef8 /system/lib/libdvm.so 05-31 18:28:12.871: INFO/DEBUG(49): #13 pc 000426d4 /system/lib/libdvm.so 05-31 18:28:12.881: INFO/DEBUG(49): #14 pc 0000fd74 /system/lib/libc.so 05-31 18:28:12.881: INFO/DEBUG(49): #15 pc 0000f840 /system/lib/libc.so 05-31 18:28:12.881: INFO/DEBUG(49): code around pc: 05-31 18:28:12.881: INFO/DEBUG(49): ad035b3c 58234808 b1036b9b f8df4798 2026c01c 05-31 18:28:12.881: INFO/DEBUG(49): ad035b4c 0000f88c ef52f7d8 0004c428 fffe631c 05-31 18:28:12.881: INFO/DEBUG(49): ad035b5c fffe94f4 000002f8 deadd00d f8dfb40e 05-31 18:28:12.881: INFO/DEBUG(49): code around lr: 05-31 18:28:12.881: INFO/DEBUG(49): afe14360 686768a5 f9b5e008 b120000c 46289201 05-31 18:28:12.881: INFO/DEBUG(49): afe14370 9a014790 35544306 37fff117 6824d5f3 05-31 18:28:12.881: INFO/DEBUG(49): afe14380 d1ed2c00 bdfe4630 00026ab0 000000b4 05-31 18:28:12.881: INFO/DEBUG(49): stack: 05-31 18:28:12.881: INFO/DEBUG(49): 46937c18 00000015 05-31 18:28:12.881: INFO/DEBUG(49): 46937c1c afe13359 /system/lib/libc.so 05-31 18:28:12.881: INFO/DEBUG(49): 46937c20 afe3b02c /system/lib/libc.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c24 afe3afd8 /system/lib/libc.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c28 00000000 05-31 18:28:12.891: INFO/DEBUG(49): 46937c2c afe14373 /system/lib/libc.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c30 afe13329 /system/lib/libc.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c34 afe13329 /system/lib/libc.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c38 afe13380 /system/lib/libc.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c3c ad081f50 /system/lib/libdvm.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c40 400091e8 /dev/ashmem/mspace/dalvik-heap/zygote/0 (deleted) 05-31 18:28:12.891: INFO/DEBUG(49): 46937c44 009b3a6a 05-31 18:28:12.891: INFO/DEBUG(49): 46937c48 00000000 05-31 18:28:12.891: INFO/DEBUG(49): 46937c4c afe1338d /system/lib/libc.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c50 df002777 05-31 18:28:12.891: INFO/DEBUG(49): 46937c54 e3a070ad 05-31 18:28:12.891: INFO/DEBUG(49): #00 46937c58 ad06f573 /system/lib/libdvm.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c5c ad044d81 /system/lib/libdvm.so 05-31 18:28:12.891: INFO/DEBUG(49): #01 46937c60 000027bd 05-31 18:28:12.891: INFO/DEBUG(49): 46937c64 00000000 05-31 18:28:12.891: INFO/DEBUG(49): 46937c68 463b6ab4 /data/dalvik-cache/data@[email protected]@classes.dex 05-31 18:28:12.891: INFO/DEBUG(49): 46937c6c 463d1ecf /data/dalvik-cache/data@[email protected]@classes.dex 05-31 18:28:12.891: INFO/DEBUG(49): 46937c70 00140450 [heap] 05-31 18:28:12.891: INFO/DEBUG(49): 46937c74 ad041d2b /system/lib/libdvm.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c78 ad082f2c /system/lib/libdvm.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c7c ad06826c /system/lib/libdvm.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c80 00140450 [heap] 05-31 18:28:12.891: INFO/DEBUG(49): 46937c84 00000000 05-31 18:28:12.891: INFO/DEBUG(49): 46937c88 000002f8 05-31 18:28:12.891: INFO/DEBUG(49): 46937c8c 400091e8 /dev/ashmem/mspace/dalvik-heap/zygote/0 (deleted) 05-31 18:28:12.891: INFO/DEBUG(49): 46937c90 ad081f50 /system/lib/libdvm.so 05-31 18:28:12.891: INFO/DEBUG(49): 46937c94 000002f8 05-31 18:28:12.891: INFO/DEBUG(49): 46937c98 00002710 05-31 18:28:12.891: INFO/DEBUG(49): 46937c9c ad0162e8 /system/lib/libdvm.so Thanks & Regards,

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• A Guided Tour of Complexity

  - by JoshReuben

  I just re-read Complexity – A Guided Tour by Melanie Mitchell , protégé of Douglas Hofstadter ( author of “Gödel, Escher, Bach”) http://www.amazon.com/Complexity-Guided-Tour-Melanie-Mitchell/dp/0199798109/ref=sr_1_1?ie=UTF8&qid=1339744329&sr=8-1 here are some notes and links:   Evolved from Cybernetics, General Systems Theory, Synergetics some interesting transdisciplinary fields to investigate: Chaos Theory - http://en.wikipedia.org/wiki/Chaos_theory – small differences in initial conditions (such as those due to rounding errors in numerical computation) yield widely diverging outcomes for chaotic systems, rendering long-term prediction impossible. System Dynamics / Cybernetics - http://en.wikipedia.org/wiki/System_Dynamics – study of how feedback changes system behavior Network Theory - http://en.wikipedia.org/wiki/Network_theory – leverage Graph Theory to analyze symmetric  / asymmetric relations between discrete objects Algebraic Topology - http://en.wikipedia.org/wiki/Algebraic_topology – leverage abstract algebra to analyze topological spaces There are limits to deterministic systems & to computation. Chaos Theory definitely applies to training an ANN (artificial neural network) – different weights will emerge depending upon the random selection of the training set. In recursive Non-Linear systems http://en.wikipedia.org/wiki/Nonlinear_system – output is not directly inferable from input. E.g. a Logistic map: Xt+1 = R Xt(1-Xt) Different types of bifurcations, attractor states and oscillations may occur – e.g. a Lorenz Attractor http://en.wikipedia.org/wiki/Lorenz_system Feigenbaum Constants http://en.wikipedia.org/wiki/Feigenbaum_constants express ratios in a bifurcation diagram for a non-linear map – the convergent limit of R (the rate of period-doubling bifurcations) is 4.6692016 Maxwell’s Demon - http://en.wikipedia.org/wiki/Maxwell%27s_demon - the Second Law of Thermodynamics has only a statistical certainty – the universe (and thus information) tends towards entropy. While any computation can theoretically be done without expending energy, with finite memory, the act of erasing memory is permanent and increases entropy. Life & thought is a counter-example to the universe’s tendency towards entropy. Leo Szilard and later Claude Shannon came up with the Information Theory of Entropy - http://en.wikipedia.org/wiki/Entropy_(information_theory) whereby Shannon entropy quantifies the expected value of a message’s information in bits in order to determine channel capacity and leverage Coding Theory (compression analysis). Ludwig Boltzmann came up with Statistical Mechanics - http://en.wikipedia.org/wiki/Statistical_mechanics – whereby our Newtonian perception of continuous reality is a probabilistic and statistical aggregate of many discrete quantum microstates. This is relevant for Quantum Information Theory http://en.wikipedia.org/wiki/Quantum_information and the Physics of Information - http://en.wikipedia.org/wiki/Physical_information. Hilbert’s Problems http://en.wikipedia.org/wiki/Hilbert's_problems pondered whether mathematics is complete, consistent, and decidable (the Decision Problem – http://en.wikipedia.org/wiki/Entscheidungsproblem – is there always an algorithm that can determine whether a statement is true).  Godel’s Incompleteness Theorems http://en.wikipedia.org/wiki/G%C3%B6del's_incompleteness_theorems  proved that mathematics cannot be both complete and consistent (e.g. “This statement is not provable”). Turing through the use of Turing Machines (http://en.wikipedia.org/wiki/Turing_machine symbol processors that can prove mathematical statements) and Universal Turing Machines (http://en.wikipedia.org/wiki/Universal_Turing_machine Turing Machines that can emulate other any Turing Machine via accepting programs as well as data as input symbols) that computation is limited by demonstrating the Halting Problem http://en.wikipedia.org/wiki/Halting_problem (is is not possible to know when a program will complete – you cannot build an infinite loop detector). You may be used to thinking of 1 / 2 / 3 dimensional systems, but Fractal http://en.wikipedia.org/wiki/Fractal systems are defined by self-similarity & have non-integer Hausdorff Dimensions !!!  http://en.wikipedia.org/wiki/List_of_fractals_by_Hausdorff_dimension – the fractal dimension quantifies the number of copies of a self similar object at each level of detail – eg Koch Snowflake - http://en.wikipedia.org/wiki/Koch_snowflake Definitions of complexity: size, Shannon entropy, Algorithmic Information Content (http://en.wikipedia.org/wiki/Algorithmic_information_theory - size of shortest program that can generate a description of an object) Logical depth (amount of info processed), thermodynamic depth (resources required). Complexity is statistical and fractal. John Von Neumann’s other machine was the Self-Reproducing Automaton http://en.wikipedia.org/wiki/Self-replicating_machine  . Cellular Automata http://en.wikipedia.org/wiki/Cellular_automaton are alternative form of Universal Turing machine to traditional Von Neumann machines where grid cells are locally synchronized with their neighbors according to a rule. Conway’s Game of Life http://en.wikipedia.org/wiki/Conway's_Game_of_Life demonstrates various emergent constructs such as “Glider Guns” and “Spaceships”. Cellular Automatons are not practical because logical ops require a large number of cells – wasteful & inefficient. There are no compilers or general program languages available for Cellular Automatons (as far as I am aware). Random Boolean Networks http://en.wikipedia.org/wiki/Boolean_network are extensions of cellular automata where nodes are connected at random (not to spatial neighbors) and each node has its own rule –> they demonstrate the emergence of complex  & self organized behavior. Stephen Wolfram’s (creator of Mathematica, so give him the benefit of the doubt) New Kind of Science http://en.wikipedia.org/wiki/A_New_Kind_of_Science proposes the universe may be a discrete Finite State Automata http://en.wikipedia.org/wiki/Finite-state_machine whereby reality emerges from simple rules. I am 2/3 through this book. It is feasible that the universe is quantum discrete at the plank scale and that it computes itself – Digital Physics: http://en.wikipedia.org/wiki/Digital_physics – a simulated reality? Anyway, all behavior is supposedly derived from simple algorithmic rules & falls into 4 patterns: uniform , nested / cyclical, random (Rule 30 http://en.wikipedia.org/wiki/Rule_30) & mixed (Rule 110 - http://en.wikipedia.org/wiki/Rule_110 localized structures – it is this that is interesting). interaction between colliding propagating signal inputs is then information processing. Wolfram proposes the Principle of Computational Equivalence - http://mathworld.wolfram.com/PrincipleofComputationalEquivalence.html - all processes that are not obviously simple can be viewed as computations of equivalent sophistication. Meaning in information may emerge from analogy & conceptual slippages – see the CopyCat program: http://cognitrn.psych.indiana.edu/rgoldsto/courses/concepts/copycat.pdf Scale Free Networks http://en.wikipedia.org/wiki/Scale-free_network have a distribution governed by a Power Law (http://en.wikipedia.org/wiki/Power_law - much more common than Normal Distribution). They are characterized by hubs (resilience to random deletion of nodes), heterogeneity of degree values, self similarity, & small world structure. They grow via preferential attachment http://en.wikipedia.org/wiki/Preferential_attachment – tipping points triggered by positive feedback loops. 2 theories of cascading system failures in complex systems are Self-Organized Criticality http://en.wikipedia.org/wiki/Self-organized_criticality and Highly Optimized Tolerance http://en.wikipedia.org/wiki/Highly_optimized_tolerance. Computational Mechanics http://en.wikipedia.org/wiki/Computational_mechanics – use of computational methods to study phenomena governed by the principles of mechanics. This book is a great intuition pump, but does not cover the more mathematical subject of Computational Complexity Theory – http://en.wikipedia.org/wiki/Computational_complexity_theory I am currently reading this book on this subject: http://www.amazon.com/Computational-Complexity-Christos-H-Papadimitriou/dp/0201530821/ref=pd_sim_b_1   stay tuned for that review!

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• Improved Performance on PeopleSoft Combined Benchmark using SPARC T4-4

  - by Brian

  Oracle's SPARC T4-4 server running Oracle's PeopleSoft HCM 9.1 combined online and batch benchmark achieved a world record 18,000 concurrent users experiencing subsecond response time while executing a PeopleSoft Payroll batch job of 500,000 employees in 32.4 minutes. This result was obtained with a SPARC T4-4 server running Oracle Database 11g Release 2, a SPARC T4-4 server running PeopleSoft HCM 9.1 application server and a SPARC T4-2 server running Oracle WebLogic Server in the web tier. The SPARC T4-4 server running the application tier used Oracle Solaris Zones which provide a flexible, scalable and manageable virtualization environment. The average CPU utilization on the SPARC T4-2 server in the web tier was 17%, on the SPARC T4-4 server in the application tier it was 59%, and on the SPARC T4-4 server in the database tier was 47% (online and batch) leaving significant headroom for additional processing across the three tiers. The SPARC T4-4 server used for the database tier hosted Oracle Database 11g Release 2 using Oracle Automatic Storage Management (ASM) for database files management with I/O performance equivalent to raw devices. Performance Landscape Results are presented for the PeopleSoft HRMS Self-Service and Payroll combined benchmark. The new result with 128 streams shows significant improvement in the payroll batch processing time with little impact on the self-service component response time. PeopleSoft HRMS Self-Service and Payroll Benchmark Systems Users Ave Response Search (sec) Ave Response Save (sec) Batch Time (min) Streams SPARC T4-2 (web) SPARC T4-4 (app) SPARC T4-4 (db) 18,000 0.988 0.539 32.4 128 SPARC T4-2 (web) SPARC T4-4 (app) SPARC T4-4 (db) 18,000 0.944 0.503 43.3 64 The following results are for the PeopleSoft HRMS Self-Service benchmark that was previous run. The results are not directly comparable with the combined results because they do not include the payroll component. PeopleSoft HRMS Self-Service 9.1 Benchmark Systems Users Ave Response Search (sec) Ave Response Save (sec) Batch Time (min) Streams SPARC T4-2 (web) SPARC T4-4 (app) 2x SPARC T4-2 (db) 18,000 1.048 0.742 N/A N/A The following results are for the PeopleSoft Payroll benchmark that was previous run. The results are not directly comparable with the combined results because they do not include the self-service component. PeopleSoft Payroll (N.A.) 9.1 - 500K Employees (7 Million SQL PayCalc, Unicode) Systems Users Ave Response Search (sec) Ave Response Save (sec) Batch Time (min) Streams SPARC T4-4 (db) N/A N/A N/A 30.84 96 Configuration Summary Application Configuration: 1 x SPARC T4-4 server with 4 x SPARC T4 processors, 3.0 GHz 512 GB memory Oracle Solaris 11 11/11 PeopleTools 8.52 PeopleSoft HCM 9.1 Oracle Tuxedo, Version 10.3.0.0, 64-bit, Patch Level 031 Java Platform, Standard Edition Development Kit 6 Update 32 Database Configuration: 1 x SPARC T4-4 server with 4 x SPARC T4 processors, 3.0 GHz 256 GB memory Oracle Solaris 11 11/11 Oracle Database 11g Release 2 PeopleTools 8.52 Oracle Tuxedo, Version 10.3.0.0, 64-bit, Patch Level 031 Micro Focus Server Express (COBOL v 5.1.00) Web Tier Configuration: 1 x SPARC T4-2 server with 2 x SPARC T4 processors, 2.85 GHz 256 GB memory Oracle Solaris 11 11/11 PeopleTools 8.52 Oracle WebLogic Server 10.3.4 Java Platform, Standard Edition Development Kit 6 Update 32 Storage Configuration: 1 x Sun Server X2-4 as a COMSTAR head for data 4 x Intel Xeon X7550, 2.0 GHz 128 GB memory 1 x Sun Storage F5100 Flash Array (80 flash modules) 1 x Sun Storage F5100 Flash Array (40 flash modules) 1 x Sun Fire X4275 as a COMSTAR head for redo logs 12 x 2 TB SAS disks with Niwot Raid controller Benchmark Description This benchmark combines PeopleSoft HCM 9.1 HR Self Service online and PeopleSoft Payroll batch workloads to run on a unified database deployed on Oracle Database 11g Release 2. The PeopleSoft HRSS benchmark kit is a Oracle standard benchmark kit run by all platform vendors to measure the performance. It's an OLTP benchmark where DB SQLs are moderately complex. The results are certified by Oracle and a white paper is published. PeopleSoft HR SS defines a business transaction as a series of HTML pages that guide a user through a particular scenario. Users are defined as corporate Employees, Managers and HR administrators. The benchmark consist of 14 scenarios which emulate users performing typical HCM transactions such as viewing paycheck, promoting and hiring employees, updating employee profile and other typical HCM application transactions. All these transactions are well-defined in the PeopleSoft HR Self-Service 9.1 benchmark kit. This benchmark metric is the weighted average response search/save time for all the transactions. The PeopleSoft 9.1 Payroll (North America) benchmark demonstrates system performance for a range of processing volumes in a specific configuration. This workload represents large batch runs typical of a ERP environment during a mass update. The benchmark measures five application business process run times for a database representing large organization. They are Paysheet Creation, Payroll Calculation, Payroll Confirmation, Print Advice forms, and Create Direct Deposit File. The benchmark metric is the cumulative elapsed time taken to complete the Paysheet Creation, Payroll Calculation and Payroll Confirmation business application processes. The benchmark metrics are taken for each respective benchmark while running simultaneously on the same database back-end. Specifically, the payroll batch processes are started when the online workload reaches steady state (the maximum number of online users) and overlap with online transactions for the duration of the steady state. Key Points and Best Practices Two PeopleSoft Domain sets with 200 application servers each on a SPARC T4-4 server were hosted in 2 separate Oracle Solaris Zones to demonstrate consolidation of multiple application servers, ease of administration and performance tuning. Each Oracle Solaris Zone was bound to a separate processor set, each containing 15 cores (total 120 threads). The default set (1 core from first and third processor socket, total 16 threads) was used for network and disk interrupt handling. This was done to improve performance by reducing memory access latency by using the physical memory closest to the processors and offload I/O interrupt handling to default set threads, freeing up cpu resources for Application Servers threads and balancing application workload across 240 threads. A total of 128 PeopleSoft streams server processes where used on the database node to complete payroll batch job of 500,000 employees in 32.4 minutes. See Also Oracle PeopleSoft Benchmark White Papers oracle.com SPARC T4-2 Server oracle.com OTN SPARC T4-4 Server oracle.com OTN PeopleSoft Enterprise Human Capital Managementoracle.com OTN PeopleSoft Enterprise Human Capital Management (Payroll) oracle.com OTN Oracle Solaris oracle.com OTN Oracle Database 11g Release 2 oracle.com OTN Disclosure Statement Copyright 2012, Oracle and/or its affiliates. All rights reserved. Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners. Results as of 8 November 2012.

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• Oracle's Global Single Schema

  - by david.butler(at)oracle.com

  Maximizing business process efficiencies in a heterogeneous environment is very difficult. The difficulty stems from the fact that the various applications across the Information Technology (IT) landscape employ different integration standards, different message passing strategies, and different workflow engines. Vendors such as Oracle and others are delivering tools to help IT organizations manage the complexities introduced by these differences. But the one remaining intractable problem impacting efficient operations is the fact that these applications have different definitions for the same business data. Business data is your business information codified for computer programs to use. A good data model will represent the way your organization does business. The computer applications your organization deploys to improve operational efficiency are built to operate on the business data organized into this schema.  If the schema does not represent how you do business, the applications on that schema cannot provide the features you need to achieve the desired efficiencies. Business processes span these applications. Data problems break these processes rendering them far less efficient than they need to be to achieve organization goals. Thus, the expected return on the investment in these applications is never realized. The success of all business processes depends on the availability of accurate master data.  Clearly, the solution to this problem is to consolidate all the master data an organization uses to run its business. Then clean it up, augment it, govern it, and connect it back to the applications that need it. Until now, this obvious solution has been difficult to achieve because no one had defined a data model sufficiently broad, deep and flexible enough to support transaction processing on all key business entities and serve as a master superset to all other operational data models deployed in heterogeneous IT environments. Today, the situation has changed. Oracle has created an operational data model (aka schema) that can support accurate and consistent master data across heterogeneous IT systems. This is foundational for providing a way to consolidate and integrate master data without having to replace investments in existing applications. This Global Single Schema (GSS) represents a revolutionary breakthrough that allows for true master data consolidation. Oracle has deep knowledge of applications dating back to the early 1990s.  It developed applications in the areas of Supply Chain Management (SCM), Product Lifecycle Management (PLM), Enterprise Resource Planning (ERP), Customer Relationship Management (CRM), Human Capital Management (HCM), Financials and Manufacturing. In addition, Oracle applications were delivered for key industries such as Communications, Financial Services, Retail, Public Sector, High Tech Manufacturing (HTM) and more. Expertise in all these areas drove requirements for GSS. The following figure illustrates Oracle's unique position that enabled the creation of the Global Single Schema. GSS Requirements Gathering GSS defines all the key business entities and attributes including Customers, Contacts, Suppliers, Accounts, Products, Services, Materials, Employees, Installed Base, Sites, Assets, and Inventory to name just a few. In addition, Oracle delivers GSS pre-integrated with a wide variety of operational applications.  Business Process Automation EBusiness is about maximizing operational efficiency. At the highest level, these 'operations' span all that you do as an organization.  The following figure illustrates some of these high-level business processes. Enterprise Business Processes Supplies are procured. Assets are maintained. Materials are stored. Inventory is accumulated. Products and Services are engineered, produced and sold. Customers are serviced. And across this entire spectrum, Employees do the procuring, supporting, engineering, producing, selling and servicing. Not shown, but not to be overlooked, are the accounting and the financial processes associated with all this procuring, manufacturing, and selling activity. Supporting all these applications is the master data. When this data is fragmented and inconsistent, the business processes fail and inefficiencies multiply. But imagine having all the data under these operational business processes in one place. ·            The same accurate and timely customer data will be provided to all your operational applications from the call center to the point of sale. ·            The same accurate and timely supplier data will be provided to all your operational applications from supply chain planning to procurement. ·            The same accurate and timely product information will be available to all your operational applications from demand chain planning to marketing. You would have a single version of the truth about your assets, financial information, customers, suppliers, employees, products and services to support your business automation processes as they flow across your business applications. All company and partner personnel will access the same exact data entity across all your channels and across all your lines of business. Oracle's Global Single Schema enables this vision of a single version of the truth across the heterogeneous operational applications supporting the entire enterprise. Global Single Schema Oracle's Global Single Schema organizes hundreds of thousands of attributes into 165 major schema objects supporting over 180 business application modules. It is designed for international operations, and extensibility.  The schema is delivered with a full set of public Application Programming Interfaces (APIs) and an Integration Repository with modern Service Oriented Architecture interfaces to make data available as a services (DaaS) to business processes and enable operations in heterogeneous IT environments. ·         Key tables can be extended with unlimited numbers of additional attributes and attribute groups for maximum flexibility.  o    This enables model extensions that reflect business entities unique to your organization's operations. ·         The schema is multi-organization enabled so data manipulation can be controlled along organizational boundaries. ·         It uses variable byte Unicode to support over 31 languages. ·         The schema encodes flexible date and flexible address formats for easy localizations. No matter how complex your business is, Oracle's Global Single Schema can hold your business objects and support your global operations. Oracle's Global Single Schema identifies and defines the business objects an enterprise needs within the context of its business operations. The interrelationships between the business objects are also contained within the GSS data model. Their presence expresses fundamental business rules for the interaction between business entities. The following figure illustrates some of these connections.   Interconnected Business Entities Interconnecte business processes require interconnected business data. No other MDM vendor has this capability. Everyone else has either one entity they can master or separate disconnected models for various business entities. Higher level integrations are made available, but that is a weak architectural alternative to data level integration in this critically important aspect of Master Data Management.    

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• Movement prediction for non-shooters

  - by ShadowChaser

  I'm working on an isometric 2D game with moderate-scale multiplayer, approximately 20-30 players connected at once to a persistent server. I've had some difficulty getting a good movement prediction implementation in place. Physics/Movement The game doesn't have a true physics implementation, but uses the basic principles to implement movement. Rather than continually polling input, state changes (ie/ mouse down/up/move events) are used to change the state of the character entity the player is controlling. The player's direction (ie/ north-east) is combined with a constant speed and turned into a true 3D vector - the entity's velocity. In the main game loop, "Update" is called before "Draw". The update logic triggers a "physics update task" that tracks all entities with a non-zero velocity uses very basic integration to change the entities position. For example: entity.Position += entity.Velocity.Scale(ElapsedTime.Seconds) (where "Seconds" is a floating point value, but the same approach would work for millisecond integer values). The key point is that no interpolation is used for movement - the rudimentary physics engine has no concept of a "previous state" or "current state", only a position and velocity. State Change and Update Packets When the velocity of the character entity the player is controlling changes, a "move avatar" packet is sent to the server containing the entity's action type (stand, walk, run), direction (north-east), and current position. This is different from how 3D first person games work. In a 3D game the velocity (direction) can change frame to frame as the player moves around. Sending every state change would effectively transmit a packet per frame, which would be too expensive. Instead, 3D games seem to ignore state changes and send "state update" packets on a fixed interval - say, every 80-150ms. Since speed and direction updates occur much less frequently in my game, I can get away with sending every state change. Although all of the physics simulations occur at the same speed and are deterministic, latency is still an issue. For that reason, I send out routine position update packets (similar to a 3D game) but much less frequently - right now every 250ms, but I suspect with good prediction I can easily boost it towards 500ms. The biggest problem is that I've now deviated from the norm - all other documentation, guides, and samples online send routine updates and interpolate between the two states. It seems incompatible with my architecture, and I need to come up with a better movement prediction algorithm that is closer to a (very basic) "networked physics" architecture. The server then receives the packet and determines the players speed from it's movement type based on a script (Is the player able to run? Get the player's running speed). Once it has the speed, it combines it with the direction to get a vector - the entity's velocity. Some cheat detection and basic validation occurs, and the entity on the server side is updated with the current velocity, direction, and position. Basic throttling is also performed to prevent players from flooding the server with movement requests. After updating its own entity, the server broadcasts an "avatar position update" packet to all other players within range. The position update packet is used to update the client side physics simulations (world state) of the remote clients and perform prediction and lag compensation. Prediction and Lag Compensation As mentioned above, clients are authoritative for their own position. Except in cases of cheating or anomalies, the client's avatar will never be repositioned by the server. No extrapolation ("move now and correct later") is required for the client's avatar - what the player sees is correct. However, some sort of extrapolation or interpolation is required for all remote entities that are moving. Some sort of prediction and/or lag-compensation is clearly required within the client's local simulation / physics engine. Problems I've been struggling with various algorithms, and have a number of questions and problems: Should I be extrapolating, interpolating, or both? My "gut feeling" is that I should be using pure extrapolation based on velocity. State change is received by the client, client computes a "predicted" velocity that compensates for lag, and the regular physics system does the rest. However, it feels at odds to all other sample code and articles - they all seem to store a number of states and perform interpolation without a physics engine. When a packet arrives, I've tried interpolating the packet's position with the packet's velocity over a fixed time period (say, 200ms). I then take the difference between the interpolated position and the current "error" position to compute a new vector and place that on the entity instead of the velocity that was sent. However, the assumption is that another packet will arrive in that time interval, and it's incredibly difficult to "guess" when the next packet will arrive - especially since they don't all arrive on fixed intervals (ie/ state changes as well). Is the concept fundamentally flawed, or is it correct but needs some fixes / adjustments? What happens when a remote player stops? I can immediately stop the entity, but it will be positioned in the "wrong" spot until it moves again. If I estimate a vector or try to interpolate, I have an issue because I don't store the previous state - the physics engine has no way to say "you need to stop after you reach position X". It simply understands a velocity, nothing more complex. I'm reluctant to add the "packet movement state" information to the entities or physics engine, since it violates basic design principles and bleeds network code across the rest of the game engine. What should happen when entities collide? There are three scenarios - the controlling player collides locally, two entities collide on the server during a position update, or a remote entity update collides on the local client. In all cases I'm uncertain how to handle the collision - aside from cheating, both states are "correct" but at different time periods. In the case of a remote entity it doesn't make sense to draw it walking through a wall, so I perform collision detection on the local client and cause it to "stop". Based on point #2 above, I might compute a "corrected vector" that continually tries to move the entity "through the wall" which will never succeed - the remote avatar is stuck there until the error gets too high and it "snaps" into position. How do games work around this?

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• Package management fails in update-manager with gzip problems and compilation errors. U12.04LTS

  - by HarveyP

  Similar to but not the same as Package management system corrupted. Cannot install or remove packages. U12.04LTS (an earlier problem) with package management system. Followed all of L. D. James suggestions in his answer to no avail. This time as well as the gzip error I am also getting compilation errors. The difference may be due to a lack of compilation in my earlier problem so it may be the same error. The packages concerned are enumerated in the output from update-manager below. Also included below that is the output from apt-get -f install apt-get autoremove gives same output. Tried update without SSL updates - 9 to install and got "Unhandled Error in aptdaemon". Output number 3 below. One at a time - output 4 - is for firefox, first in the list of packages. Falls over at libssl1.0.0 despite deselection of it from update ... Tried apt-get install --reinstall dpkg which succeeded, apt-get install --reinstall tar and apt-get install --reinstall gzip both of which failed at libssl1.0.0 as ever. (as suggested by Subv3rsion elsewhere in this forum) Now cannot apt-get update with complete success even after changing server and apt-get clean - output number 5 below ... 1). Output from update-manager The following packages will be upgraded:<> firefox firefox-globalmenu firefox-locale-en libavcodec-extra-53 libavformat53 libavutil-extra-51 libjson0 libpostproc52 libssl1.0.0 libswscale2 openssl 11 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.<br> Need to get 0 B/46.5 MB of archives. After this operation, 1,416 kB of additional disk space will be used.<br> Do you want to continue [Y/n]? y debconf: Perl may be unconfigured (Bareword "gensym" not allowed while "strict subs" in use at /usr/lib/perl/5.14/IO/Handle.pm line 67. BEGIN not safe after errors--compilation aborted at /usr/lib/perl/5.14/IO/Handle.pm line 366. Compilation failed in require at /usr/lib/perl/5.14/IO/Seekable.pm line 9. BEGIN failed--compilation aborted at /usr/lib/perl/5.14/IO/Seekable.pm line 9. Compilation failed in require at /usr/lib/perl/5.14/IO/File.pm line 11. BEGIN failed--compilation aborted at /usr/lib/perl/5.14/IO/File.pm line 11. Compilation failed in require at /usr/share/perl/5.14/FileHandle.pm line 9. Compilation failed in require at (eval 1) line 3. BEGIN failed--compilation aborted at (eval 1) line 3. ) -- aborting (Reading database ... 160575 files and directories currently installed.) Preparing to replace libssl1.0.0 1.0.1-4ubuntu5.14 (using .../libssl1.0.0_1.0.1-4ubuntu5.15_i386.deb) ... Unpacking replacement libssl1.0.0 ... dpkg-deb (subprocess): data: internal gzip read error: '<fd:4>: data error' dpkg-deb: error: subprocess <decompress> returned error exit status 2 dpkg: error processing /var/cache/apt/archives/libssl1.0.0_1.0.1-4ubuntu5.15_i386.deb (--unpack):<br> subprocess dpkg-deb --fsys-tarfile returned error exit status 2 No apport report written because MaxReports has already been reached Bareword "gensym" not allowed while "strict subs" in use at /usr/lib/perl/5.14/IO/Handle.pm line 67. BEGIN not safe after errors--compilation aborted at /usr/lib/perl/5.14/IO/Handle.pm line 366. Compilation failed in require at /usr/lib/perl/5.14/IO/Seekable.pm line 9. BEGIN failed--compilation aborted at /usr/lib/perl/5.14/IO/Seekable.pm line 9. Compilation failed in require at /usr/lib/perl/5.14/IO/File.pm line 11. BEGIN failed--compilation aborted at /usr/lib/perl/5.14/IO/File.pm line 11. Compilation failed in require at /usr/share/perl/5.14/FileHandle.pm line 9. Compilation failed in require at /usr/share/perl5/Debconf/Template.pm line 8. BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/Template.pm line 8. Compilation failed in require at /usr/share/perl5/Debconf/Question.pm line 8. BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/Question.pm line 8. Compilation failed in require at /usr/share/perl5/Debconf/Config.pm line 7. BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/Config.pm line 7. Compilation failed in require at /usr/share/perl5/Debconf/Log.pm line 10. Compilation failed in require at /usr/share/perl5/Debconf/Db.pm line 7. BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/Db.pm line 7. Compilation failed in require at /usr/share/debconf/frontend line 6. BEGIN failed--compilation aborted at /usr/share/debconf/frontend line 6. dpkg: error whale cleanang up: subprgcess installed post-installation script returned error exit status 2 Errors were encountered while processing: /var/cache/apt/archives/libssl1.0.0_1.0.1-4ubuntu5.15_i386.deb E: Sub-process /usr/bin/dpkg returned an error code (1) 2). Output from install -f harveyp@harveyp:~$ sudo apt-get -f install [sudo] password for harveyp: Reading package lists... Done Building dependency tree Reading state information... Done 0 to upgrade, 0 to newly install, 0 to remove and 11 not to upgrade. 1 not fully installed or removed.<br> After this operation, 0 B of additional disk space will be used. E: Internal Error, No file name for libssl1.0.0 3). Unhandled error from aptdaemon Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 1045, in _simulate trans.unauthenticated = self.__simulate(trans) File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 1160, in __simulate unauthenticated = self._get_unauthenticated() File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 347, in _get_unauthenticated for pkg in self._iterate_packages(): File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 1356, in _iterate_packages for enum, pkg in enumerate(self._cache): File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 216, in __iter__ yield self[pkgname] File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 201, in __getitem__ pkg = self._weakref[key] = Package(self, self._cache[key]) KeyError: 'librqrcode-rubq-doc 4). output from update of firefox installArchives() failed: Error in function: < Setting up libssl1.0.0 (1.0.1-4ubuntu5.14) ... Bareword "gensym" not allowed while "strict subs" in use at /usr/lib/perl/5.14/IO/Handle.pm line 67. BEGIN not safe after errors--compilation aborted at /usr/lib/perl/5.14/IO/Handle.pm line 366. Compilation failed in require at /usr/lib/perl/5.14/IO/Seekable.pm line 9. BEGIN failed--compilation aborted at /usr/lib/perl/5.14/IO/Seekable.pm line 9. Compilation failed in require at /usr/lib/perl/5.14/IO/File.pm line 11. BEGIN failed--compilation aborted at /usr/lib/perl/5.14/IO/File.pm line 11. Compilation failed in require at /usr/share/perl/5.14/FileHandle.pm line 9. Compilation failed in require at /usr/share/perl5/Debconf/Template.pm line 8. BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/Template.pm line 8. Compilation failed in require at /usr/share/perl5/Debconf/Question.pm line 8. BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/Question.pm line 8. Compilation failed in require at /usr/share/perl5/Debconf/Config.pm line 7. BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/Config.pm line 7. Compilation failed in require at /usr/share/perl5/Debconf/Log.pm line 10. 5. output from apt-get update ...snip ... Hit http://ubuntu-archive.mirrors.free.org precise-security/multiverse Translation-en Hit http://ubuntu-archive.mirrors.free.org precise-security/restricted Translation-en Hit http://ubuntu-archive.mirrors.free.org precise-security/universe Translation-en Fetched 368 kB in 6s (59.5 kB/s) W: Failed to fetch gzip:/var/lib/apt/lists/partial/ubuntu-archive.mirrors.free.org_ubuntu_dists_precise_universe_source_Sources Hash Sum mismatch E: Some index files failed to download. They have been ignored, or old ones used instead.

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• Repository and Ticket management in a Windows Environment

  - by saifkhan

  I’ve been using AxoSoft’s bug tracking application for a while, although and excellent piece of software I had some issues with it ·         It was SLOOOW (both desktop and web). I don’t care what Axosoft says, I tired multiple servers etc. I’ve been long enough in this field to tell you when something is not right with an app. ·         The cost! It’s not feasible for a small team.   I must say though, that they have some nice features which are not commonly found on other bug tracking software. I wouldn’t go on to list any here. I would prefer you download and try their app and see for yourself. In my quest to find a replacement, I tried a few. The successor had to satisfy the following ·         A 99.99% Windows Environment. ·         Bug Tracking. ·         Ticket Management (power users and project managers can open tickets on projects). ·         Repository (I decided to merge bug tracking and repository to get my team to be more productive). ·         Unlimited users. ·         Cost. Being the head of IT security for the firm I work for, making the decision to move data offsite was a hard decision to make, but turned out to be one I am not regretting so far. My choice was down to Altassian JIRA and codebaseHQ. I ended up going with the latter… (I still love the greenhopper from Altassian…its freaking cool!) CodebaseHQ is nice and simple and has all the features I needed. I’ve been using them for a few months now and very happy. Their pricing…well, see for yourself. I was also able to get our SVN data… (Yes, SVN! I don’t go near the Visual Sourcesafe thing…it’s not that safe (pardon the pun). I am hearing some nice things about TFS 2010) over to codebaseHQ. We use VisualSVN to access repositories. …so if you are a Windows developer (or team) codebaseHQ is worth checking out!

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• TomEE Integration in NetBeans Next

  - by Geertjan

  At JavaOne 2013, there was a lot of buzz around the TomEE server, e.g., many Tweets, nice party, and a new TomEE consulting company. For those tracking TomEE developments, it is interesting to note that recently the NetBeans IDE development builds have had added to them... TomEE support. Note: The TomEE support described here is not in NetBeans IDE 7.4, but in development builds for the next release of NetBeans IDE.For example, with NetBeans IDE development builds you're able to: register TomEE as a server in the Services window (TomEE has several distributions, e.g., one can use the "with JAX-RS" one, for example) create a Java EE 6 web project (e.g., Maven based) against this server create JPA entities from database create JAX-RS classes from JPA entities create JSF pages from JPA entities the IDE lets you create a new data source for TomEE and deploy it to the server the IDE figures out the components that are already packaged in TomEE, and the fact that (unlike with regular Tomcat), it does not need to package any components such as JSF implementation, persistence provider, or JAX-RS runtime, so that the resulting WAR file is very small the IDE can also do "deploy on save" with TomEE, so that your development cycle is very fast Adam Bien blogged about how he set up TomEE sometime ago, here. The official support in NetBeans IDE will be much more tightly integrated, simplifying the steps Adam describes. For example, the IDE does step 2 from Adam's blog for you, i.e., it sets up TomEE deployment roles. Moreover, it knows about all the technologies included in TomEE so that it can optimize the packaging; it knows about TomEE's persistence setup; it can work with TomEE data sources, etc. Below you see a Maven-based Java EE 6 PrimeFaces application (all entities and JSF pages generated from a database) deployed to TomEE in NetBeans IDE: And here's the management console for configuring and finetuning TomEE in NetBeans IDE: When I tried out the NetBeans IDE development build and TomEE, to see how everything fits together, I was surprised at how fast TomEE started up. Not sure what they did to it, but seems like a server on steroids. And setting it up in NetBeans IDE was trivial. Add the simple set up of TomEE in NetBeans IDE to the many benefits that the widely praised out of the box NetBeans Maven tools make possible, together with the fact that not one single plugin had to be installed to get everything you see described here up and running... and you have a really powerful combination of dev tools, all for free.

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• How to track vehicles with GPS and have that data available for an app

  - by Blaz Art

  What type of hardware and software architecture would you recommend for the task of somehow tracking a vehicle for the convenience of the app user to know where the vehicle is? I realize there are many ways to do it, but all them I think have to include this (correct me if im wrong) a gps tracking device inside the vehicle a way transmitting the gps location to a server from within the vehicle a server which tells the apps the locations of the vehicle the app

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• How to generate a metamodel for POJOs

  - by Stefan Haberl

  I'm looking for a metamodel generation library for simple Java POJOs. I'm thinking about something along the lines of JPA 2.0's metamodel, which can be used to generate type safe criterias for JPA entities (see this Question on SO for JPA specific implementations). Does something similar exist for general purpose JavaBeans, i.e., POJOS, that are not JPA entities? Specifically, I want to implement Spring MVC's WebDataBinder.setAllowedFields() method in a type safe way in my Spring MVC @Controllers

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• [EF + Oracle] Inserting Data (1/2)

  - by JTorrecilla

  Prologue Following EF series (I ,II y III) in this chapter we will see how to create DB record from EF. Inserting Data Like we indicated in the 2º post: “One Entity matches with a DB record, and one property match with a Table Column”. To start, we need to create an object from one of the Entities: 1: EMPLEADOS empleado = new EMPLEADOS(); Also like, I told previously, Exists the possibility to use the Static Function defined by VS for each Entity: Once we have created the object, we can Access to it properties to fill like a common class:   1: empleado.NOMBRE = "Javier Torrecilla";   After finish of fill our Entity properties, it must be needed to add the object to the appropriate ObjectSet in the ObjectContext: 1: enti.EMPLEADOS.AddObject(empleado); or 1: enti.AddToEMPLEADOS(empleado); Both methods will do the same action, create an insert statement. Have we finished? No. Any Entity has a property called “EntityState”. This prop is an Enum from “EntityState”, which has the following: Detached: the Entity is created, but not added to the Context. Unchanged: There is no pending changes in the Entity. Added: The entity is added to the ObjectSet, but it is not yet sent to the DB. Deleted: The object is deleted form the ObjectSet, but not yet from the DB. Modified: There is Pending Changes to confirm. Let’s see, the several values of the property during the Creation steps: 1. While the Object is created and we are filling the props: EntityState.Detached; 2. After adding to the ObjectSet: EntityState.Added. This not indicated that the record is in the DB 3. Saving the Data: To sabe the data in the DB, we are going to call “SaveChanges” method of the Object Context. After invoke it, the property will be EntityState.Unchanged.   What does SaveChanges Method? This function will synchronize and send all pending changes to DB. It will add, modify or delete all Entities, whose EntityState property, is setted to Added, Deleted or Modified. After finishing, all added or modified entities will be change the State to “Unchanged”, and deleted Entities must take the “Detached” state.

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• socket.error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access

  - by Sean Ochoa

  Hello all. I'm trying to create a custom TCP stack using Python 2.6.5 on Windows 7 to serve valid http page requests on port 80 locally. But, I've run into a snag with what seems like Windows 7 tightened up security. This code worked on Vista. Here's my sample code: import SocketServer class MyTCPHandler(SocketServer.BaseRequestHandler): def handle(self): headerText = """HTTP/1.0 200 OK Date: Fri, 31 Dec 1999 23:59:59 GMT Content-Type: text/html Content-Length: 1354""" bodyText = "<html><body>some page</body></html>" self.request.send(headerText + "\n" + bodyText) if __name__ == "__main__": HOST, PORT = "localhost", 80 server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler) server.serve_forever() C:\pythonpython TestServer.py Traceback (most recent call last): File "TestServer.py", line 19, in server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler) File "C:\Python26\lib\SocketServer.py", line 400, in init self.server_bind() File "C:\Python26\lib\SocketServer.py", line 411, in server_bind self.socket.bind(self.server_address) File "", line 1, in bind socket.error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access permissions How exactly do I get this to work on Windows 7?

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• UITableViewController and viewForHeaderInSection problems

  - by Fiona

  Hello, So I need your help please! I've created a UITableViewController: ContactDetailViewController. In IB in the nib file, I've added a view ahead of the table view and hooked it up to headerView - a UIView declared in the .h file. I've also created a view: CustomerHeaderView However when I run the code below, Its throwing an exception at the following line: headerView = [[UIView alloc] initWithNibName:@"ContactHeaderDetail" bundle:nil]; The error being thrown is: 2010-05-20 10:59:50.405 OnePageCRM[19620:20b] * -[UIView initWithNibName:bundle:]: unrecognized selector sent to instance 0x3ca4fa0 2010-05-20 10:59:50.406 OnePageCRM[19620:20b] Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '** -[UIView initWithNibName:bundle:]: unrecognized selector sent to instance 0x3ca4fa0' So any ideas anyone? Many thanks, Fiona // // ContactDetailViewController.m // OnePageCRM // // Created by Fiona Tighe on 19/05/2010. // Copyright 2010 __MyCompanyName__. All rights reserved. // #import "ContactDetailViewController.h" #import "DisplayInfoViewController.h" #import "ActionViewController.h" #define SectionHeaderHeigth 200 @implementation ContactDetailViewController @synthesize name; @synthesize date; @synthesize headerView; @synthesize nextAction; @synthesize nameLabel; @synthesize usernameLabel; @synthesize nextActionTextField; @synthesize dateLabel; @synthesize notesTableView; @synthesize contactInfoButton; @synthesize backgroundInfoButton; @synthesize actionDoneButton; - (void)viewDidLoad { [super viewDidLoad]; // Uncomment the following line to display an Edit button in the navigation bar for this view controller. // self.navigationItem.rightBarButtonItem = self.editButtonItem; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } #pragma mark Table view methods - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 2; } // Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { int numOfRows; NSLog(@"section: %d", section); switch (section){ case 0: numOfRows = 0; break; case 1: numOfRows = 3; break; default: break; } return numOfRows; } - (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section { if (section == 0){ headerView = [[UIView alloc] initWithNibName:@"ContactHeaderDetail" bundle:nil]; // headerView = [[UIView alloc] initWithNibName:@"ContactHeaderDetail" bundle:nil]; return headerView; }else{ return nil; } } - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{ return SectionHeaderHeigth; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } // Set up the cell... return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // Navigation logic may go here. Create and push another view controller. // AnotherViewController *anotherViewController = [[AnotherViewController alloc] initWithNibName:@"AnotherView" bundle:nil]; // [self.navigationController pushViewController:anotherViewController]; // [anotherViewController release]; } /* // Override to support conditional editing of the table view. - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the specified item to be editable. return YES; } */ /* // Override to support editing the table view. - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { if (editingStyle == UITableViewCellEditingStyleDelete) { // Delete the row from the data source [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES]; } else if (editingStyle == UITableViewCellEditingStyleInsert) { // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view } } */ /* // Override to support rearranging the table view. - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath { } */ /* // Override to support conditional rearranging of the table view. - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the item to be re-orderable. return YES; } */ -(IBAction)displayContactInfo:(id)sender{ DisplayInfoViewController *divc = [[DisplayInfoViewController alloc] init]; divc.textView = self.nextAction; divc.title = @"Contact Info"; [self.navigationController pushViewController:divc animated:YES]; [divc release]; } -(IBAction)displayBackgroundInfo:(id)sender{ DisplayInfoViewController *divc = [[DisplayInfoViewController alloc] init]; divc.textView = self.nextAction; divc.title = @"Background Info"; [self.navigationController pushViewController:divc animated:YES]; [divc release]; } -(IBAction)actionDone:(id)sender{ ActionViewController *avc = [[ActionViewController alloc] init]; avc.title = @"Action"; avc.nextAction = self.nextAction; [self.navigationController pushViewController:avc animated:YES]; [avc release]; } - (void)dealloc { [name release]; [date release]; [nextAction release]; [nameLabel release]; [usernameLabel release]; [nextActionTextField release]; [dateLabel release]; [notesTableView release]; [contactInfoButton release]; [backgroundInfoButton release]; [actionDoneButton release]; [headerView release]; [super dealloc]; } @end

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• iPad issue with a modal view: modal view label null after view controller is created

  - by iPhone Guy

  This is a weird issue. I have created a view controller with a nib file for my modal view. On that view there is a label, number and text view. When I create the view from the source view, I tried to set the label, but it shows that the label is null (0x0). Kinda weird... Any suggestions? Now lets look at the code (I put all of the code here because that shows more than I can just explain): The modal view controller - in IB the label is connected to the UILabel object: @implementation ModalViewController @synthesize delegate; @synthesize goalLabel, goalText, goalNumber; // Done button clicked - (void)dismissView:(id)sender { // Call the delegate to dismiss the modal view if ([delegate respondsToSelector:@selector(didDismissModalView: newText:)]) { NSNumber *tmpNum = goalNumber; NSString *tmpString = [[NSString alloc] initWithString:[goalText text]]; [delegate didDismissModalView:tmpNum newText:tmpString]; [tmpNum release]; [tmpString release]; } } - (void)cancelView:(id)sender { // Call the delegate to dismiss the modal view if ([delegate respondsToSelector:@selector(didCancelModalView)]) [delegate didCancelModalView]; } -(void) setLabelText:(NSString *)text { [goalLabel setText:text]; } /* // The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) { // Custom initialization } return self; } */ -(void) viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; // bring up the keyboard.... [goalText becomeFirstResponder]; } // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [super viewDidLoad]; // set the current goal number to -1 so we know none was set goalNumber = [NSNumber numberWithInt: -1]; // Override the right button to show a Done button // which is used to dismiss the modal view self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(dismissView:)] autorelease]; // and now for the cancel button self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(cancelView:)] autorelease]; self.navigationItem.title = @"Add/Update Goals"; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Overriden to allow any orientation. return YES; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (void)dealloc { [super dealloc]; } @end And here is where the view controller is created, variables set, and displayed: - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // put a checkmark.... UITableViewCell *tmpCell = [tableView cellForRowAtIndexPath:indexPath]; [tmpCell setAccessoryType:UITableViewCellAccessoryCheckmark]; // this is where the popup is gonna popup! // ===> HEre We Go! // Create the modal view controller ModalViewController *mdvc = [[ModalViewController alloc] initWithNibName:@"ModalDetailView" bundle:nil]; // We are the delegate responsible for dismissing the modal view [mdvc setDelegate:self]; // Create a Navigation controller UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:mdvc]; // set the modal view type navController.modalPresentationStyle = UIModalPresentationFormSheet; // set the label for all of the goals.... if (indexPath.section == 0 && indexPath.row == 0) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Long Term Goal 1:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:1]]; } if (indexPath.section == 0 && indexPath.row == 1) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Long Term Goal 2:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:2]]; } if (indexPath.section == 0 && indexPath.row == 2) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Long Term Goal 3:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:3]]; } if (indexPath.section == 0 && indexPath.row == 3) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Long Term Goal 4:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:4]]; } if (indexPath.section == 1 && indexPath.row == 0) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Short Term Goal 1:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:5]]; } if (indexPath.section == 1 && indexPath.row == 1) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Short Term Goal 2:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:6]]; } if (indexPath.section == 1 && indexPath.row == 2) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Short Term Goal 3:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:7]]; } if (indexPath.section == 1 && indexPath.row == 3) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Short Term Goal 4:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:8]]; } // show the navigation controller modally [self presentModalViewController:navController animated:YES]; // Clean up resources [navController release]; [mdvc release]; // ==> Ah... we are done... }

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• How to change color of divider in NSSplitView?

  - by Akki

  Can we change the color of the divider? Apple documentations says, that we can override -dividerColor in subclass of NSSplitView for this, but it doesn't works for me, or my understanding isn't correct. Also I've try create color layer over divider, e.g.: colorLayer = [CALayer layer]; NSRect dividerFrame = NSMakeRect([[self.subviews objectAtIndex:0] frame].size.width, [[self.subviews objectAtIndex:0] frame].origin.y, [self dividerThickness], self.frame.size.height); [colorLayer setBackgroundColor:[color coreGraphicsColorWithAlfa:1]]; [colorLayer setFrame:NSRectToCGRect(dividerFrame)]; [self.layer addSublayer:colorLayer]; Not works.

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• Django-Registration & Django-Profile, using your own custom form

  - by Issy

  Hey All, I am making use of django-registration and django-profile to handle registration and profiles. I would like to create a profile for the user at the time of registration. I have created a custom registration form, and added that to the urls.py using the tutorial on: http://dewful.com/?p=70 The basic idea in the tutorial is to override the default registration form to create the profile at the same time. forms.py - In my profiles app from django import forms from registration.forms import RegistrationForm from django.utils.translation import ugettext_lazy as _ from profiles.models import UserProfile from registration.models import RegistrationProfile attrs_dict = { 'class': 'required' } class UserRegistrationForm(RegistrationForm): city = forms.CharField(widget=forms.TextInput(attrs=attrs_dict)) def save(self, profile_callback=None): new_user = RegistrationProfile.objects.create_inactive_user(username=self.cleaned_data['username'], password=self.cleaned_data['password1'], email=self.cleaned_data['email']) new_profile = UserProfile(user=new_user, city=self.cleaned_data['city']) new_profile.save() return new_user In urls.py from profiles.forms import UserRegistrationForm and url(r'^register/$', register, {'backend': 'registration.backends.default.DefaultBackend', 'form_class' : UserRegistrationForm}, name='registration_register'), The form is displayed, and i can enter in City, however it does not save or create the entry in the DB.

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• iphone setting UITextView delegate breaks auto completion

  - by Tristan

  Hi there! I have a UITextField that I would like to enable auto completion on by: [self.textView setAutocorrectionType:UITextAutocorrectionTypeYes]; This works normally, except when I give the UITextView a delegate. When a delegate is set, auto complete just stops working. The delegate has only the following method: - (void)textViewDidChange:(UITextView *)textView { self.textView.text = [self.textView.text stringByReplacingOccurrencesOfString:@"\n" withString:@""]; int left = LENGTH_MAX -[self.textView.text length]; self.characterCountLabel.text = [NSString stringWithFormat:@"%i",abs(left)]; } Does anyone know how to have both auto complete enabled and a delegate set? Thanks!Tristan

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• Help with a compiler warning: Initialization from distinct Objective-C type when types match

  - by Alex Gosselin

  Here is the function where I get the compiler warning, I can't seem to figure out what is causing it. Any help is appreciated. -(void)displaySelector{ //warning on the following line: InstanceSelectorViewController *controller = [[InstanceSelectorViewController alloc] initWithCreator:self]; [self.navController pushViewController:controller animated:YES]; [controller release]; } Interface and implementation for the initWithCreator: method -(InstanceSelectorViewController*)initWithCreator:(InstanceCreator*)creator; -(InstanceSelectorViewController*)initWithCreator:(InstanceCreator*)crt{ if (self = [self initWithNibName:@"InstanceSelectorViewController" bundle:nil]) { creator = crt; } return self; }

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