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• decompress .gz file in batch

  - by kapildalwani

  I have 100 of .gz files which I need to de-compress. I have couple of questions a) I am using the code given at http://www.roseindia.net/java/beginners/JavaUncompress.shtml to decompress the .gz file. Its working fine. Quest:- is there a way to get the file name of the zipped file. I know that Zip class of Java gives of enumeration of entery file to work upon. This can give me the filename, size etc stored in .zip file. But, do we have the same for .gz files or does the file name is same as filename.gz with .gz removed. b) is there another elegant way to decompress .gz file by calling the utility function in the java code. Like calling 7-zip application from your java class. Then, I don't have to worry about input/output stream. Thanks in advance. Kapil

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• printf field width : bytes or chars?

  - by leonbloy

  The printf/fprintf/sprintf family supports a width field in its format specifier. I have a doubt for the case of (non-wide) char arrays arguments: Is the width field supposed to mean bytes or characters? What is the (correct-de facto) behaviour if the char array corresponds to (say) a raw UTF-8 string? (I know that normally I should use some wide char type, that's not the point) For example, in char s[] = "ni\xc3\xb1o"; // utf8 encoded "niño" fprintf(f,"%5s",s); Is that function supposed to try to ouput just 5 bytes (plain C chars) (and you take responsability of misalignments or other problems if two bytes results in a textual characters) ? Or is it supposed to try to compute the length of "textual characters" of the array? (decodifying it... according to the current locale?) (in the example, this would amount to find out that the string has 4 unicode chars, so it would add a space for padding).

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• Jersey message body reader not found in maven-built JAR

  - by Olvagor

  My application uses a REST (JAX-RS Jersey) interface. When I run it in Eclipse, everything' s fine. The domain objects are annotated, I'm not using XML files for the REST mapping. Now I created a standalone JAR using the maven-assembly-plugin, which packs the application and all dependencies in a single, executable JAR file. This also seems to work. But when I start the application and request an object from the server, Jersey complains, that it can't find a message body reader: com.sun.jersey.api.client.ClientHandlerException: A message body reader for Java type, class de.rybu.atuin.core.entity.User, and MIME media type, application/json, was not found Any ideas why this happens? EDIT: After I slept a night over it, I noticed that it complains about JSON... but I'm using only XML for serialization. Strange.

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• How can I grab the iTunes-defined name for my iPhone/iPod device?

  - by Christophe Porteneuve

  Hey there, I'm trying to get the name for an iPhone/iPod device that the user entered in their iTunes. This is not, I repeat, not, necessarily what [[UIDevice currentDevice] name] returns (or any of its other methods). For instance, my iPhone is bound in iTunes to "iPhone 3G de Christophe…", to differentiate it from my wife's and other similar devices. That's the name I'd love to be able to grab. Is it stored anywhere on the device, and if so can I access it somehow? Thanks!

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• css dropdownlist /combox <select

  - by teki

  i am using bassistance.de form validation please look at the demo here i have few dropdownlist and when it validates i want that dropdonwlist to be dotted with red which is not happening and i have even add the .css line please see below. please have a look at the demo to get an idea what i am asking for. div.error { display: none; } input { border: 1px solid black; } input.checkbox { border: none } input:focus { border: 1px dotted black; } input.error { border: 1px dotted red; } textarea.error { border: 1px dotted red; } **select.error { border: 1px dotted red; }** form.cmxform .gray * { color: gray; } PS: some how it ignores "select.error..."

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• DNSSD Crash error tells me to use native Avahi API instead of Bonjour layer. How do I do this?

  - by Poul

  I get this error trying to run the example script here: http://github.com/tenderlove/dnssd/blob/master/sample/register.rb It says I am using a Bonjour Compatibility Layer and I should use the native api. How do I switch the dnssd ruby gem over to using this? *** WARNING *** The program 'ruby1.8' called 'DNSServiceAddRecord()' which is not supported (or only supported partially) in the Apple Bonjour compatibility layer of Avahi. *** WARNING *** Please fix your application to use the native API of Avahi! *** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=ruby1.8&f=DNSServiceAddRecord>

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• UPDATE MKANNOTATION COORDINATES

  - by user345711

  Hi everyone, i'm having problems trying to update an annotation location with different coordinates. Is there any way I can change de location property without having to create another annotation? I've tried the code below with no luck. The annotation i'm trying to get is not updating its location. Please help! CLLocationCoordinate2D location; location.latitude = -36.560976; location.longitude = -59.455807; for (id annotation in self.mapView.annotations) { if ([annotation isKindOfClass:[MyAnnotation class]]) { [annotation setCoords:location]; //setCoords is defined in MyAnnotation class } } Thank you all!

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• SQL: select random row from table where the ID of the row isn't in another table?

  - by johnrl

  I've been looking at fast ways to select a random row from a table and have found the following site: http://74.125.77.132/search?q=cache:http://jan.kneschke.de/projects/mysql/order-by-rand/&hl=en&strip=1 What I want to do is to select a random url from my table 'urls' that I DON'T have in my other table 'urlinfo'.The query I am using now selects a random url from 'urls' but I need it modified to only return a random url that is NOT in the 'urlinfo' table. Heres the query: SELECT url FROM urls JOIN (SELECT CEIL(RAND() * (SELECT MAX(urlid) FROM urls ) ) AS urlid ) AS r2 USING(urlid); And the two tables: CREATE TABLE urls ( urlid INT NOT NULL AUTO_INCREMENT PRIMARY KEY, url VARCHAR(255) NOT NULL, ) ENGINE=INNODB; CREATE TABLE urlinfo ( urlid INT NOT NULL PRIMARY KEY, urlinfo VARCHAR(10000), FOREIGN KEY (urlid) REFERENCES urls (urlid) ) ENGINE=INNODB;

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• What is the best way to transmit Java objects over a network

  - by tomdee

  I am trying to transmit objects of a particular class from one server to another. The options I'm looking at are: Serialize the data as JSON and send it over the wire using HTTP, and de-serialize at the other end. Serialize the data into some binary form and transmit using TCP sockets. What are the best practices in this area? What are the gotchas? Ideally I would like the interface to be versioned, so the sender and receiver can be upgraded independently. I'm considering the JSON approach as I already have code that will serialize/deserialize the objects into JSON.

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• How do I compute the approximate entropy of a bit string?

  - by dreeves

  Is there a standard way to do this? Googling -- "approximate entropy" bits -- uncovers multiple academic papers but I'd like to just find a chunk of pseudocode defining the approximate entropy for a given bit string of arbitrary length. (In case this is easier said than done and it depends on the application, my application involves 16,320 bits of encrypted data (cyphertext). But encrypted as a puzzle and not meant to be impossible to crack. I thought I'd first check the entropy but couldn't easily find a good definition of such. So it seemed like a question that ought to be on StackOverflow! Ideas for where to begin with de-cyphering 16k random-seeming bits are also welcome...) See also this related question: http://stackoverflow.com/questions/510412/what-is-the-computer-science-definition-of-entropy

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• first app - wrong language is shown in appstore

  - by Sean

  hi all last week i distributed my first app to the appstore. what i've to see was, that the app language which is shown in appstore is not the right one. my app is just in german, but in appstore english is shown up. can somebody tell me what i've exactly got to do, that the language in the appstore is german? i know i ned a "de.lproj" folder, but i don't know what this folder should contain and what i've got to do step by step to realize that the right way. thanks in advance sean

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• Any best practices with feedback colours?

  - by alex

  I have a few that I think are correct. These are background colours for messages. ERROR: red; INFO: blue; SUCCESS: green; NOT IMPORTANT INFO: yellow Have I got the blue and yellow around the wrong way? Any hex values that are a de facto standard for these? I am curious considering web development, but I think the answers will be agnostic. Here is an interesting thought (I'm sure I've read about it in an article). What colours would the errors be on Target's website, considering all their branding is red?

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• Checking if language is set in url with regex

  - by Saif Bechan

  I have am working on a multi language file. My urls look something like this: http://www.mydomain.com/en/about/info http://www.mydomain.com/nl/about/info Now I use a small regex script that redirect the user when they use a link without language. The script looks like this: preg_match('~^/[a-z]{2}/~', $_SERVER['REQUEST_URI'] This finds out is there is a language set en|nl|de etc. This works fine on all links except for these: http://www.mydomain.com/en http://www.mydomain.com/nl There is no trailing slash so the regex can not find the given values. Anyone know a fix for this?

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• Help with Django localization--doesn't seem to be working. Nothing happens

  - by alex

  Can someone help me with Localization? I put {% trans "..." %} in my template, I filled in my django.po after running "makemessages". #: templates/main_content.html:136 msgid "Go to page" msgstr "¦~C~Z¦~C¦¦~B¦¦~L~G¦~Z" #: templates/main_content.html:138 msgid "Page" msgstr "¦~C~Z¦~C¦¦~B¦" #: templates/main_content.html:154 msgid "Next" msgstr "?" Then, I set LANGUAGES={} in my settings.py along with "gettext lambda": gettext = lambda s: s LANGUAGES = ( ('de', gettext('German')), ('en', gettext('English')), ('ja', gettext('Japanese')), ) Of course, I installed the LocaleMiddleware. I also set the request.session['django_language'] = "ja" How do I test that this is working? How do I see japanese on my site!?

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• How to check all check boxes at a click of a button

  - by LivingThing

  I am new to Swing, UI and MVC I have created a code based on MVC. Now my problem is that that in the controller part i have an actioneventlistener which listens to different button clicks. Out of all those buttons i have "select all" and "de-select all". In my view i have a table, one of the column of that table contains "check boxes". Now, when i click the "select-all" button i want to check all the check boxes and with "de-select all" i want to uncheck all of them. Below is my code which is not working. Please tell me what am i doing wrong here. Also, if someone knows a more elagent way please share. Thanks In my view public class CustomerSelectorDialogUI extends JFrame{ public CustomerSelectorDialogUI(TestApplicationUI ownerView, DummyCustomerStore dCStore, boolean modality) { //super(ownerView, modality); setTitle("[=] Customer Selection Dialog [=]"); //setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE); custSelectPanel = new JPanel(); buttonPanel = new JPanel(); selectAllButton = new JButton(" Select All "); clearAllButton = new JButton(" Clear All "); applyButton = new JButton(" Apply "); cancelButton = new JButton(" Cancel "); PopulateAndShow(dCStore, Boolean.FALSE); } public void PopulateAndShow(DummyCustomerStore dCStore, Boolean select) { List data = new ArrayList(); for (Customer customer : dCStore.getAllCustomers()) { Object record[] = new Object[COLUMN_COUNT]; record[0] = (select == false) ? Boolean.FALSE : Boolean.TRUE; record[1] = Integer.toString(customer.customerId); record[2] = customer.fullName; data.add(record); } tModel = new TableModel(data); // In the above for loop accoring to user input (i.e click on check all or // uncheck all) i have tried to update the data. As it can be seen that i // have a condition for record[0]. //After the loop, here i have tried several options like validate(). repaint but to no avail customerTable = new JTable(tModel); scrollPane = new JScrollPane(customerTable); setContentPane(this.createContentPane()); setSize(480, 580); setResizable(false); setVisible(true); } private JPanel createContentPane() { custSelectPanel.setLayout(null); customerTable.setDragEnabled(false); customerTable.setFillsViewportHeight(true); scrollPane.setLocation(10, 10); scrollPane.setSize(450,450); custSelectPanel.add(scrollPane); buttonPanel.setLayout(null); buttonPanel.setLocation(10, 480); buttonPanel.setSize(450, 100); custSelectPanel.add(buttonPanel); selectAllButton.setLocation(0, 0); selectAllButton.setSize(100, 40); buttonPanel.add(selectAllButton); clearAllButton.setLocation(110, 0); clearAllButton.setSize(100, 40); buttonPanel.add(clearAllButton); applyButton.setLocation(240, 0); applyButton.setSize(100, 40); buttonPanel.add(applyButton); cancelButton.setLocation(350, 0); cancelButton.setSize(100, 40); buttonPanel.add(cancelButton); return custSelectPanel; } } Table Model private class TableModel extends AbstractTableModel { private List data; public TableModel(List data) { this.data = data; } private String[] columnNames = {"Selected ", "Customer Id ", "Customer Name " }; public int getColumnCount() { return COLUMN_COUNT; } public int getRowCount() { return data == null ? 0 : data.size(); } public String getColumnName(int col) { return columnNames[col]; } public void setValueAt(Object value, int rowIndex, int columnIndex) { getRecord(rowIndex)[columnIndex] = value; super.fireTableCellUpdated(rowIndex, columnIndex); } private Object[] getRecord(int rowIndex) { return (Object[]) data.get(rowIndex); } public Object getValueAt(int rowIndex, int columnIndex) { return getRecord(rowIndex)[columnIndex]; } public Class getColumnClass(int columnIndex) { if (data == null || data.size() == 0) { return Object.class; } Object o = getValueAt(0, columnIndex); return o == null ? Object.class : o.getClass(); } public boolean isCellEditable(int row, int col) { if (col > 0) { return false; } else { return true; } } } } A Views Action Listener class CustomerSelectorUIListener implements ActionListener{ CustomerSelectorDialogUI custSelectView; Controller controller; public CustomerSelectorUIListener (Controller controller, CustomerSelectorDialogUI custSelectView) { this.custSelectView = custSelectView; this.controller = controller; } @Override public void actionPerformed(ActionEvent e) { String actionEvent = e.getActionCommand(); else if ( actionEvent.equals( "clearAllButton" ) ) { controller.checkButtonControl(false); } else if ( actionEvent.equals( "selectAllButton" ) ) { controller.checkButtonControl(true); } } } Main Controller public class Controller implements ActionListener{ CustomerSelectorDialogUI selectUI; DummyCustomerStore store; public Controller( DummyCustomerStore store, TestApplicationUI appUI ) { this.store = store; this.appUI = appUI; appUI.ButtonListener( this ); } @Override public void actionPerformed(ActionEvent event) { String viewAction = event.getActionCommand(); if (viewAction.equals("TEST")) { selectUI = new CustomerSelectorDialogUI(appUI, store, true); selectUI.showTextActionListeners(new CustomerSelectorUIListener( this, selectUI ) ); selectUI.setVisible( true ); } } public void checkButtonControl (Boolean checkAll) { selectUI.PopulateAndShow(store, checkAll); } }

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• How to add items rows to a listview WPF and VB.net

  - by leviatan1001

  Im getting crazy with it. It is so easy in windows form, but in wpf it seems to be different. Every example i find is in C# and i cant addapt it. Well, this is the code i have. Atm, i have just defined the columns: 'diseño de las columnas Dim item As ListViewItem = New ListViewItem Dim Mi_Lista As GridView = New GridView Mi_Lista.AllowsColumnReorder = True Dim cine As New GridViewColumn() Dim Si3d As New GridViewColumn cine.Header = "Cine" cine.DisplayMemberBinding = New Binding("Cine") Si3d.DisplayMemberBinding = New Binding("si3D") cine.Width = 140 Si3d.Header = "3D" Si3d.Width = 50 Mi_Lista.Columns.Add(cine) Mi_Lista.Columns.Add(Si3d) Thanks in advance.

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• Wmode transparent and symbols issue with foreign keyboard

  - by Boun

  Hello, I have the known issue with wmode transparent and input textfield in my page. I know that the question is often asked but I have a special situation with that case. I need to embed my swf with wmode=transparent but in my swf I have an input textfield and the bug with "@" or "." symbols exists. I have a french keyboard and I decided to overcome this problem with a string replacement with the FirefoxWmodeFix class from Manmaru (see the link below). http://www.manmaru.fr/mlab/?p=95 It works for my keyboard but I need that "trick" with EN/DE/IT keyboard. Could anyone help me with the right combination of keys on different keyboard and different OS system to display "@" and "." symbols. I don't have any foreign Windows system to get the key code for each combination. Or if anyone has another solution, I will be pleased to hear that one. Thanks in advance for any help.

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• Avoid being blocked by web mail companies for mass/bulk emailing ?

  - by Johannes

  Our company is sending out a lot of emails per day and planning to send even more in future. (thousands) Also there are mass mailouts as well in the ten thousands every now and then. Anybody has experience with hotmail, yahoo (web.de, gmx.net) and similar webmail companies blocking your emails because "too many from the same source in a period of time" have been sent to them? What can be done about it? Spreading email mailouts over a whole day/night? At what rate? (we are talking about legal emailing just to make sure...)

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• Have different fallback language than the keys used in NSLocalizedString(@"Text aka. key",@"Descript

  - by Allisone

  I use everywhere NSLocalizedString(@"Text in deutsch",@"das Textfeld Text in deutsch") I have two Localizable.strings files. One for german and one for english. What I realized now is. If you have a german iPhone, you get the german text, if you have your iPhone set to english you get the english text. But if you have lets say french, then you would get the german text, too because I use german as the keys, right ? Is there a way to set english as fallback language instead of the german one used everywhere in my code ? (I have so many occurences of NSLocalizedString that it would be a pain to change the keys now everywhere (in code, in Localized.string.en and in Localized.string.de))

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• how do i claim a low-numbered port as non-root the "right way"

  - by qbxk

  I have a script that I want to run as a daemon listening on a low-numbered port (< 1024) Script is in python, though answers in perl are also acceptable. The script is being daemonized using start-stop-daemon in a startup script, which may complicate the answer What I really (think) don't want is to type ps -few and see this process running with a "root" on it's line. How do I do it? ( from my less-than-fully-educated-about-system-calls perspective, I can see 3 avenues, Run the script as root (no --user/--group/--chuid to start-stop-daemon), and have it de-escalate it's user after it claims the port Setuid root on the script (chmod u+s), and run the script as the running user, (via --user/--group/--chuid to start-stop-daemon, the startup script still has to be called as root), in the script, acquire root privileges, claim the port, and then revert back to normal user something else i'm unaware of )

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• Choosing routing.yml based on user culture?

  - by Erland Wiencke

  In my Symfony application I would like to choose the routing.yml based on the current user's culture; 'en' => routing.en.yml 'no' => routing.no.yml and so forth. Any suggestion to how this can be done? Edit: I am not trying to do i18n this way - I use Symfony's built-in methods for that. I simply want "static" urls to reflect the user's language: /en/projects/internal/project-name /no/prosjekter/interne/prosjektnavn /fr/baguette/champs-elysee/foux-de-fafa Where "projects" is a module, the category "internal" and "project-name" are stored in the database.

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• Is it safe to convert a mysqlpp::sql_blob to a std::string?

  - by Runcible

  I'm grabbing some binary data out of my MySQL database. It comes out as a mysqlpp::sql_blob type. It just so happens that this BLOB is a serialized Google Protobuf. I need to de-serialize it so that I can access it normally. This gives a compile error, since ParseFromString() is not intended for mysqlpp:sql_blob types: protobuf.ParseFromString( record.data ); However, if I force the cast, it compiles OK: protobuf.ParseFromString( (std::string) record.data ); Is this safe? I'm particularly worried because of this snippet from the mysqlpp documentation: "Because C++ strings handle binary data just fine, you might think you can use std::string instead of sql_blob, but the current design of String converts to std::string via a C string. As a result, the BLOB data is truncated at the first embedded null character during population of the SSQLS. There’s no way to fix that without completely redesigning either String or the SSQLS mechanism." Thanks for your assistance!

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• Problems using 2 simplemodal osx calls

  - by Marcos

  I´m developing a webpage that contains two <p> tags (program and events), that shows two different contents. When I click the program button (it´s a <p> tag), it´s ok, it shows the table on the div´s. But, when I click the events button, again it shows the program <p> tag contents, and I want to show the events table content. I´ve read de solution for this question on this site, but not happens, when I change my JS file, the content of both <p> tags disapears. Can somebody help me?

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• Convert T-SQL function to PL/SQL

  - by llasarov

  can you help me convert following T-SQL funcntion into Oracle. The function converts a string like service|nvretail;language|de;yyyy|2011; to a table. The main problem I have is the usage of the temp table. I could not find any equivalent to it in Oracle. CREATE FUNCTION [dbo].[TF_ConvertPara] ( @parastringNVARCHAR(max) ) RETURNS @para TABLE ( [Key] varchar(max), [Value] varchar(max) ) begin DECLARE @NextString NVARCHAR(40) DECLARE @Pos1 INT DECLARE @Pos2 INT DECLARE @NextPos INT DECLARE @Delimiter1 NCHAR=';' DECLARE @Delimiter2 NCHAR='|' if substring(@paraString, len(@paraString) - 1, 1) <> @Delimiter1 SET @paraString = @paraString + @Delimiter1 SET @Pos1 = charindex(@Delimiter1, @paraString) WHILE (@pos1 <> 0) BEGIN SET @NextString = substring(@paraString, 1, @Pos1 - 1) SET @paraString = substring(@paraString, @pos1 + 1, len(@paraString)) SET @pos1 = charindex(@Delimiter1, @paraString) SET @Pos2 = charindex(@Delimiter2, @NextString) if (@Pos2 > 0) begin insert into @para values (substring(@NextString, 1, @Pos2 - 1), substring(@NextString, @Pos2 + 1, len(@NextString))) end END return; end Thank you in advance.

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• How do I update an MKAnnotation location with new coordinates?

  - by user345711

  Hi everyone, i'm having problems trying to update an annotation location with different coordinates. Is there any way I can change de location property without having to create another annotation? I've tried the code below with no luck. The annotation i'm trying to get is not updating its location. Please help! CLLocationCoordinate2D location; location.latitude = -36.560976; location.longitude = -59.455807; for (id annotation in self.mapView.annotations) { if ([annotation isKindOfClass:[MyAnnotation class]]) { [annotation setCoords:location]; //setCoords is defined in MyAnnotation class } } Thank you all!

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