Search Results

Search found 4547 results on 182 pages for 'haskell io'.

Page 70/182 | < Previous Page | 66 67 68 69 70 71 72 73 74 75 76 77  | Next Page >

  • Portable way of finding total disk size in Java (pre java 6)

    - by Wouter Lievens
    I need to find the total size of a drive in Java 5 (or 1.5, whatever). I know that Java 6 has a new method in java.io.File, but I need it to work in Java 5. Apache Commons IO has org.apache.commons.io.FileSystemUtils to provide the free disk space, but not the total disk space. I realize this is OS dependant and will need to depend on messy command line invocation. I'm fine with it working on "most" systems, i.e. windows/linux/macosx. Preferably I'd like to use an existing library rather than write my own variants. Any thoughts? Thanks.

    Read the article

  • OutputStream with ByteArrayOutputStream not writing

    - by Yonatan
    Hey again Internet ! So i'm trying to write out an object to a ByteArray, but for some reason it's not writting anything, which i see by the fact that the return value is 0, and that by the fact that reading it results in an exception. BAoutput = new ByteArrayOutputStream(); Oout = new ObjectOutputStream(BAoutput); Oout.writeObject(receiver); where receiver is an object i get through a parameter. and the exceptions are always the same: at java.io.ObjectInputStream$BlockDataInputStream.peekByte(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) Any ideas?

    Read the article

  • .net, using PowerShell class to invoke a "[namespace.class]::method" style command

    - by Marco
    Hello, I created a powershell object via .net to invoke commands. When I invoke normal commands like 'Get-Process' I had no problems: ps.AddCommand("Get-Process").AddParameter(...).Invoke() but I'm not able to invoke a .net method with the syntax "[namespace.class]::method", just to make an example to invoke [System.IO.File]::Exists("c:\boo.txt"). I tried with ps.AddCommand("[System.IO.File]::Exists(\"c:\boo.txt\")").Invoke() ps.AddCommand("[System.IO.File]::Exists").AddArgument("c:\boo.txt\").Invoke() and some others. It always throws an exception which says that the command specified is not recognized. There is a way to invoke that type of command? Thanks

    Read the article

  • How to write in an file in MSIL code

    - by Thomas
    Hi all, I have a aspx webpage which uses an assembly mine (which mades a custom authentification). I would like to modify MSIL code (so just with ILDASM/ILASM tools) of my assembly in order to log something in a file. I have tried to add this at the end of the authentification method of my assembly : IL_0034: ldstr "C:\\path_to_my_website\\log.txt" IL_0039: newobj instance void [mscorlib]System.IO.StreamWriter::.ctor(string) IL_003e: stloc.1 IL_003f: ldloc.1 IL_0040: ldstr "test" IL_0045: callvirt instance void [mscorlib]System.IO.TextWriter::Write(string) IL_004a: nop IL_004b: ldloc.1 IL_004c: callvirt instance void [mscorlib]System.IO.TextWriter::Close() IL_0051: nop ILASM does not find any error, and the CLR does not throw any exception at runtime, but the file is not created or modified ! :( Any idea ?

    Read the article

  • accessing required modules from other modules

    - by john smith
    I have a bare-bone express application, exactly the one that is created with the express command. I have installed socket.io and attached it to my server, like this: var app = express(), server = http.createServer(app), io = io.listen(server); server.listen(8000); Now, I also have the routes files, which is called like this: app.get('/', routes.index); Inside this module I have the following function: exports.index = function(req, res){ socket.emit('news', { message: "foo" }); }; This obviously leads to a 500 reference error, because the routes file is an exportable module, and obviously has no idea what the socket is, as it is located in the app.js file. Is there a way I can access this socket object from this, or any other file? Please note that it is attached to the express generated app. extra: what about getting/setting session data? Thanks in advance.

    Read the article

  • Why won't the following Clojure code tail a file via ssh?

    - by Zubair
    The following code never manages to tail a file. It simply hangs waiting for reader input. Has anyone tried anything similar? (def output (ref [] )) (import 'ch.ethz.ssh2.Connection) (import 'ch.ethz.ssh2.Session) (import 'ch.ethz.ssh2.StreamGobbler) (import 'java.lang.StringBuilder) (import 'java.io.InputStream) (import 'java.io.BufferedReader) (import 'java.io.InputStreamReader) (let [connection (new Connection "hostname")] (. connection connect) (let [ok (. connection authenticateWithPassword "username" "password" ) session (. connection openSession )] (. session execCommand "tail -f filename.txt") (let [sb (StringBuilder.) stdout (StreamGobbler. (. session getStdout)) br (BufferedReader. (InputStreamReader. stdout)) ] (future (loop [line2 (. br readLine)] (if (= line2 nil) nil (do (dosync (ref-set output (conj @output line2))) (recur (. br readLine)))) ) ) ) ) )

    Read the article

  • How do you fix "Too many open files" problem in Hudson?

    - by Randyaa
    We use Hudson as a continuous integration system to execute automated builds (nightly and based on CVS polling) of a lot of our projects. Some projects poll CVS every 15 minutes, some others poll every 5 minutes and some poll every hour. Every few weeks we'll get a build that fails with the following output: FATAL: java.io.IOException: Too many open files java.io.IOException: java.io.IOException: Too many open files at java.lang.UNIXProcess.<init>(UNIXProcess.java:148) The next build always worked (with 0 changes) so we always chalked it up to 2 build jobs being run at the same time and happening to have too many files open during the process. This weekend we had a build fail Friday night (automatic nightly build) with the message and every other nightly build also failed. Somehow this triggered Hudson to continuously build every project which failed until the issue was resolved. This resulted in a build every 30 minutes or so of every project until sometime Saturday night when the issue magically disappeared.

    Read the article

  • Using PowerShell class to invoke a "[namespace.class]::method" style command

    - by Marco
    Hello, I created a powershell object via .net to invoke commands. When I invoke normal commands like 'Get-Process' I had no problems: ps.AddCommand("Get-Process").AddParameter(...).Invoke() but I'm not able to invoke a .net method with the syntax "[namespace.class]::method", just to make an example to invoke [System.IO.File]::Exists("c:\boo.txt"). I tried with ps.AddCommand("[System.IO.File]::Exists(\"c:\\boo.txt\")").Invoke() ps.AddCommand("[System.IO.File]::Exists").AddArgument("c:\\boo.txt").Invoke() and some others. It always throws an exception which says that the command specified is not recognized. There is a way to invoke that type of command? Thanks

    Read the article

  • convert from physical path to virtual path

    - by user710502
    I have this function that gets the fileData as a byte array and a file path. The error I am getting is when it tries to set the fileInfo in the code bewlo. It says 'Physical Path given, Virtual Path expected' public override void WriteBinaryStorage(byte[] fileData, string filePath) { try { // Create directory if not exists. System.IO.FileInfo fileInfo = new System.IO.FileInfo(System.Web.HttpContext.Current.Server.MapPath(filePath)); //when it gets to this line the error is caught if (!fileInfo.Directory.Exists) { fileInfo.Directory.Create(); } // Write the binary content. System.IO.File.WriteAllBytes(System.Web.HttpContext.Current.Server.MapPath(filePath), fileData); } catch (Exception) { throw; } } When debugging it, is providing the filePath as "E:\\WEBS\\webapp\\default\\images\\mains\\myimage.jpg" . And the error message is 'E:/WEBS/webapp/default/images/mains/myimage.jpg' is a physical path, but a virtual path was expected. Also, what it is triggering this to happen is the following call properties.ResizeImage(imageName, Configurations.ConfigSettings.MaxImageSize, Server.MapPath(Configurations.EnvironmentConfig.LargeImagePath));

    Read the article

  • Maven - how to put the build dependance jar files ?

    - by larrycai
    I run a simple CXF maven project, and get error below [INFO] [cxf-codegen:wsdl2java {execution: generate-sources}] [INFO] ------------------------------------------------------------------------ [ERROR] BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] org/springframework/core/io/support/ResourcePatternResolver org.springframework.core.io.support.ResourcePatternResolver [INFO] ------------------------------------------------------------------------ [INFO] Trace org.apache.maven.lifecycle.LifecycleExecutionException: org/springframework/core/io/support/ResourcePatternResolver at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:719) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387) I don't know how to put the springframework-core dependance ? It works if I put the jar file under $M2_HOME/lib, but is it correct way ? since when I solve this, it requires to add more lib there, can I put it into pom.xml somewhere ? I tried to put .. inside tag, it doesn't work

    Read the article

  • Threading errors with Application.LoadComponent (key already exists)

    - by Kellls
    MSDN says that public static members of System.Windows.Application are thread safe. But when I try to run my app with multiple threads I get the following exception: ArgumentException: An entry with the same key already exists. at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) at System.Collections.Generic.SortedList`2.Add(TKey key, TValue value) at System.IO.Packaging.Package.AddIfNoPrefixCollisionDetected(ValidatedPartUri partUri, PackagePart part) at System.IO.Packaging.Package.GetPartHelper(Uri partUri) at System.IO.Packaging.Package.GetPart(Uri partUri) at System.Windows.Application.GetResourceOrContentPart(Uri uri) at System.Windows.Application.LoadComponent(Uri resourceLocator, Boolean bSkipJournaledProperties) at System.Windows.Application.LoadComponent(Uri resourceLocator) The application works fine on a single thread and even on two or three. When I get up past 5 then I get the error every time. Am I doing something wrong? What can I do to fix this?

    Read the article

  • gwt - Using List<Serializable> in a RPC call?

    - by Garagos
    I have a RPC service with the following method: public List<Serializable> myMethod(TransactionCall call) {...} But I get a warning when this method is analyzed, and then the rpc call fails Analyzing 'my.project.package.myService' for serializable types Analyzing methods: public abstract java.util.List<java.io.Serializable> myMethod(my.project.package.TransactionCall call) Return type: java.util.List<java.io.Serializable> [...] java.io.Serializable Verifying instantiability (!) Checking all subtypes of Object wich qualify for serialization It seems I can't use Serializable for my List... I could use my own interface instead (something like AsyncDataInterface, wich implements the Serializable interface) but the fact is that my method will return a list custom objects AND basic objects (such as Strings, int....). So my questions are: Is it a standart behaviour? (I can't figure out why I can't use this interface in that case) Does anyone have a workaround for that kind of situation?

    Read the article

  • Scala : cleanest way to recursively parse files checking for multiple strings

    - by fred basset
    Hi All, I want to write a Scala script to recursively process all files in a directory. For each file I'd like to see if there are any cases where a string occurs at line X and line X - 2. If a case like that occurs I'd like to stop processing that file, and add that filename to a map of filenames to occurrence counts. I just started learning Scala today, I've got the file recurse code working, and need some help with the string searching, here's what I have so far: import java.io.File import scala.io.Source val s1= "CmdNum = 506" val s2 = "Data = [0000,]" def processFile(f: File) { val lines = scala.io.Source.fromFile(f).getLines.toArray for (i = 0 to lines.length - 1) { // want to do string searches here, see if line contains s1 and line two lines above also contains s1 //println(lines(i)) } } def recursiveListFiles(f: File): Array[File] = { val these = f.listFiles if (these != null) { for (i = 0 to these.length - 1) { if (these(i).isFile) { processFile(these(i)) } } these ++ these.filter(_.isDirectory).flatMap(recursiveListFiles) } else { Array[File]() } } println(recursiveListFiles(new File(args(0))))

    Read the article

  • Problem When Compressing File using vb.net

    - by Amr Elnashar
    I have File Like "Sample.bak" and when I compress it to be "Sample.zip" I lose the file extension inside the zip file I meann when I open the compressed file I find "Sample" without any extension. I use this code : Dim name As String = Path.GetFileName(filePath).Replace(".Bak", "") Dim source() As Byte = System.IO.File.ReadAllBytes(filePath) Dim compressed() As Byte = ConvertToByteArray(source) System.IO.File.WriteAllBytes(destination & name & ".Bak" & ".zip", compressed) Or using this code : Public Sub cmdCompressFile(ByVal FileName As String) 'Stream object that reads file contents Dim streamObj As Stream = New StreamReader(FileName).BaseStream 'Allocate space in buffer according to the length of the file read Dim buffer(streamObj.Length) As Byte 'Fill buffer streamObj.Read(buffer, 0, buffer.Length) streamObj.Close() 'File Stream object used to change the extension of a file Dim compFile As System.IO.FileStream = File.Create(Path.ChangeExtension(FileName, "zip")) 'GZip object that compress the file Dim zipStreamObj As New GZipStream(compFile, CompressionMode.Compress) 'Write to the Stream object from the buffer zipStreamObj.Write(buffer, 0, buffer.Length) zipStreamObj.Close() End Sub please I need to compress the file without loosing file extension inside compressed file. thanks,

    Read the article

  • groovy connect to proxy then download files

    - by senzacionale
    i want to grab the grapes but i am behind proxy so i can not download anything. How can i connect to proxy before downloading? import groovy.text.SimpleTemplateEngine import java.security.MessageDigest import org.apache.commons.cli.OptionBuilder import org.apache.commons.cli.Options import org.apache.commons.cli.PosixParser import org.apache.commons.io.FileUtils import org.apache.ivy.core.settings.IvySettings import org.apache.ivy.plugins.parser.m2.PomModuleDescriptorParser import org.apache.tools.ant.Project import org.apache.tools.ant.ProjectHelper import org.apache.tools.ant.types.Path import org.apache.commons.cli.HelpFormatter //First grab the grapes we need for the script and create a few beans to hold some values @Grab(group = 'org.apache.ant', module = 'ant', version = '1.7.1') @Grab(group = 'commons-io', module = 'commons-io', version = '1.4') @Grab(group = 'commons-cli', module = 'commons-cli', version = '1.2') @Grab(group = 'org.apache.ivy', module = 'ivy', version = '2.1.0')

    Read the article

  • How send sms 2automatically 2 a paricular no: only?

    - by royalcasanova
    import net.rim.device.api.io.; import net.rim.device.api.system.; import javax.microedition.io.; import java.util.; import java.io.*; public class SendSms extends Application { private static final int MAX_PHONE_NUMBER_LENGTH = 32; private String addr = "15191112222"; private String msg = "This is a test message."; private DatagramConnection _dc = null; private static String _openString = "sms://"; public static void main(String[] args) { new SendSms().enterEventDispatcher(); } public SendSms() { try { _dc = (DatagramConnection)Connector.open(_openString); byte[] data = msg.getBytes(); Datagram d = _dc.newDatagram(_dc.getMaximumLength()); d.setAddress("//" + addr); _dc.send(d); } catch ( IOException e) {} System.exit(0); } }

    Read the article

  • Path with no slash after drive letter and colon - what does it point to?

    - by ya23
    I have mistyped a path and instead of c:\foo.txt wrote c:foo.txt. I expected it to either fail or to resolve to c:\foo.txt, but instead it seems to be resolved to foo.txt in a current user's home folder. Powershell returns: PS C:\> [System.IO.Path]::GetFullPath("c:\foo.txt") c:\foo.txt PS C:\> [System.IO.Path]::GetFullPath("c:foo.txt") C:\Users\Administrator\foo.txt PS C:\> [System.IO.Path]::GetFullPath("g:foo.txt") G:\foo.txt Running explorer.exe from commandline and passing it any of the above results in C:\Users\Administrator\Documents to be opened. I haven't found any documentation of that and I'm utterly confused, please explain the behaviour.

    Read the article

  • C#:Saving image to folder

    - by Meko
    HI. I know this is simple question but when I use FirstPersonTestImage.Save(IIdComboBox.Text + "-" + i + ".jpg"); it works and saves file to folder where is the .exe file . But I want to save it to specific folder like /photo/IO-66/ and tryed to use String StudentPath = PhotoPath + IGroupNoComboBox.Text + "/" + IIdComboBox.Text + "/" + IIdComboBox.Text + "-" + i + ".jpg"; FirstPersonTestImage.Save(StudentPath); BUt it gives An unhandled exception of type 'System.Runtime.InteropServices.ExternalException' occurred in System.Drawing.dll How can I solve this problem? Is is about folder path ? or using "/" ? EDIT Here My code for creating and checking existing or not folder if (!System.IO.Directory.Exists(PhotoPath + "/" + IGroupNoComboBox.Text.ToString().Trim())) { Directory.CreateDirectory(PhotoPath + "/" + IGroupNoComboBox.Text.ToString().Trim()); } if (!System.IO.Directory.Exists(PhotoPath + "/" + IGroupNoComboBox.Text.ToString().Trim()+ "/" + IIdComboBox.Text.ToString().Trim() + "/")) { Directory.CreateDirectory(PhotoPath + "/" + IGroupNoComboBox.Text.ToString().Trim()+"/" + IIdComboBox.Text.ToString().Trim() + "/"); }

    Read the article

  • Java: Looking for hack to deal with Windows file paths in Linux

    - by Chase Seibert
    Say you have a large legacy ColdFusion on top of Java on Windows application. File access is done both via java.io.File and by CFFILE (which in turn also uses java.io.File), but not centralised in any way into a single file access library. Further, say you have file paths both hard-coded in the code, and also in a database. In other words, assume the file paths themselves cannot change. They could be either local or remote Windows file paths: c:\temp\file.txt \\server\share\file.txt Is there a way to run this application on Linux with minimal code changes? I'm looking for creative solutions that do not involve touching the legacy code. Some ideas: Run it on WINE. This actually works, because WINE will translate the local paths, and has a samba client for the remote paths. Is there a way to override java.io.File to perform the file path translation with custom code? In this case, I would translate the remote paths to a mount point.

    Read the article

  • Invalid parameter used when trying to save a graphic image of mms.

    - by Sheery
    Hi, I have an application build in C# using PC Suite API, when i am trying to copy mms image to my PC it gives me an error of invalid parameters, can any one help me in this matter ...my code is dataVersit = (CAContentAccess.CADataDefinitions.CA_DATA_VERSIT)Marshal.PtrToStructure(bufData, typeof(CAContentAccess.CADataDefinitions.CA_DATA_VERSIT)); byte[] bVersitObject = new byte[dataVersit.iDataLength]; Marshal.Copy(dataVersit.pbVersitObject, bVersitObject, 0 , dataVersit.iDataLength); System.IO.Stream ios = System.IO.File.Open(fileDlg.FileName, System.IO.FileMode.Create); ios.Write(bVersitObject, bVersitObject.GetLowerBound(0), dataVersit.iDataLength); ios.Flush(); ios.Close();

    Read the article

  • add a from to backup routine

    - by Gerard Flynn
    hi how do you put a process bar and button onto this code i have class and want to add a gui on to the code using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Data.SqlClient; using System.IO; using System.Threading; using Tamir.SharpSsh; using System.Security.Cryptography; using ICSharpCode.SharpZipLib.Checksums; using ICSharpCode.SharpZipLib.Zip; using ICSharpCode.SharpZipLib.GZip; namespace backup { public partial class Form1 : Form { public Form1() { InitializeComponent(); } /// <summary> /// Summary description for Class1. /// </summary> public class Backup { private string dbName; private string dbUsername; private string dbPassword; private static string baseDir; private string backupName; private static bool isBackup; private string keyString; private string ivString; private string[] backupDirs = new string[0]; private string[] excludeDirs = new string[0]; private ZipOutputStream zipOutputStream; private string backupFile; private string zipFile; private string encryptedFile; static void Main() { Backup.Log("BackupUtility loaded"); try { new Backup(); if (!isBackup) MessageBox.Show("Restore complete"); } catch (Exception e) { Backup.Log(e.ToString()); if (!isBackup) MessageBox.Show("Error restoring!\r\n" + e.Message); } } private void LoadAppSettings() { this.backupName = System.Configuration.ConfigurationSettings.AppSettings["BackupName"].ToString(); this.dbName = System.Configuration.ConfigurationSettings.AppSettings["DBName"].ToString(); this.dbUsername = System.Configuration.ConfigurationSettings.AppSettings["DBUsername"].ToString(); this.dbPassword = System.Configuration.ConfigurationSettings.AppSettings["DBPassword"].ToString(); //default to using where we are executing this assembly from Backup.baseDir = System.Reflection.Assembly.GetExecutingAssembly().Location.Substring(0, System.Reflection.Assembly.GetExecutingAssembly().Location.LastIndexOf("\\")) + "\\"; Backup.isBackup = bool.Parse(System.Configuration.ConfigurationSettings.AppSettings["IsBackup"].ToString()); this.keyString = System.Configuration.ConfigurationSettings.AppSettings["KeyString"].ToString(); this.ivString = System.Configuration.ConfigurationSettings.AppSettings["IVString"].ToString(); this.backupDirs = GetSetting("BackupDirs", ','); this.excludeDirs = GetSetting("ExcludeDirs", ','); } private string[] GetSetting(string settingName, char delimiter) { if (System.Configuration.ConfigurationSettings.AppSettings[settingName] != null) { string settingVal = System.Configuration.ConfigurationSettings.AppSettings[settingName].ToString(); if (settingVal.Length > 0) return settingVal.Split(delimiter); } return new string[0]; } public Backup() { this.LoadAppSettings(); if (isBackup) this.DoBackup(); else this.DoRestore(); Log("Finished"); } private void DoRestore() { System.Windows.Forms.OpenFileDialog fileDialog = new System.Windows.Forms.OpenFileDialog(); fileDialog.Title = "Choose .encrypted file"; fileDialog.Filter = "Encrypted files (*.encrypted)|*.encrypted|All files (*.*)|*.*"; fileDialog.InitialDirectory = Backup.baseDir; if (fileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK) { //string encryptedFile = GetFileName("encrypted"); string encryptedFile = fileDialog.FileName; string decryptedFile = this.GetDecryptedFilename(encryptedFile); //string originalFile = GetFileName("original"); this.Decrypt(encryptedFile, decryptedFile); //this.UnzipFile(decryptedFile, originalFile); } } //use the same filename as the backup except replace ".encrypted" with ".decrypted.zip" private string GetDecryptedFilename(string encryptedFile) { string name = encryptedFile.Substring(0, encryptedFile.LastIndexOf(".")); name += ".decrypted.zip"; return name; } private void DoBackup() { this.backupFile = GetFileName("bak"); this.zipFile = GetFileName("zip"); this.encryptedFile = GetFileName("encrypted"); this.DeleteFiles(); this.zipOutputStream = new ZipOutputStream(File.Create(zipFile)); try { //backup database first if (this.dbName.Length > 0) { this.BackupDB(backupFile); this.ZipFile(backupFile, this.GetName(backupFile)); } //zip any directories specified in config file this.ZipUserSpecifiedFilesAndDirectories(this.backupDirs); } finally { this.zipOutputStream.Finish(); this.zipOutputStream.Close(); } this.Encrypt(zipFile, encryptedFile); this.SCPFile(encryptedFile); this.DeleteFiles(); } /// <summary> /// Deletes any files created by the backup process, namely the DB backup file, /// the zip of all files backuped up, and the encrypred zip file /// </summary> private void DeleteFiles() { File.Delete(this.backupFile); File.Delete(this.zipFile); ///File.Delete(this.encryptedFile); } private void ZipUserSpecifiedFilesAndDirectories(string[] fileNames) { foreach (string fileName in fileNames) { string name = fileName.Trim(); if (name.Length > 0) { Log("Zipping " + name); this.ZipFile(name, this.GetNameFromDir(name)); } } } private void SCPFile(string inputPath) { string sshServer = System.Configuration.ConfigurationSettings.AppSettings["SSHServer"].ToString(); string sshUsername = System.Configuration.ConfigurationSettings.AppSettings["SSHUsername"].ToString(); string sshPassword = System.Configuration.ConfigurationSettings.AppSettings["SSHPassword"].ToString(); if (sshServer.Length > 0 && sshUsername.Length > 0 && sshPassword.Length > 0) { Scp scp = new Scp(sshServer, sshUsername, sshPassword); //Copy a file from local machine to remote SSH server scp.Connect(); Log("Connected to " + sshServer); //scp.Put(inputPath, "/home/wal/temp.txt"); scp.Put(inputPath, GetName(inputPath)); scp.Close(); } else { Log("Not SCP as missing login details"); } } private string GetName(string inputPath) { FileInfo info = new FileInfo(inputPath); return info.Name; } private string GetNameFromDir(string inputPath) { DirectoryInfo info = new DirectoryInfo(inputPath); return info.Name; } private static void Log(string msg) { try { string toLog = DateTime.Now.ToString() + ": " + msg; System.Diagnostics.Debug.WriteLine(toLog); System.IO.FileStream fs = new System.IO.FileStream(baseDir + "app.log", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.ReadWrite); System.IO.StreamWriter m_streamWriter = new System.IO.StreamWriter(fs); m_streamWriter.BaseStream.Seek(0, System.IO.SeekOrigin.End); m_streamWriter.WriteLine(toLog); m_streamWriter.Flush(); m_streamWriter.Close(); fs.Close(); } catch (Exception e) { Console.WriteLine(e.ToString()); } } private byte[] GetFileBytes(string path) { FileStream stream = new FileStream(path, FileMode.Open); byte[] bytes = new byte[stream.Length]; stream.Read(bytes, 0, bytes.Length); stream.Close(); return bytes; } private void WriteFileBytes(byte[] bytes, string path) { FileStream stream = new FileStream(path, FileMode.Create); stream.Write(bytes, 0, bytes.Length); stream.Close(); } private void UnzipFile(string inputPath, string outputPath) { ZipInputStream zis = new ZipInputStream(File.OpenRead(inputPath)); ZipEntry theEntry = zis.GetNextEntry(); FileStream streamWriter = File.Create(outputPath); int size = 2048; byte[] data = new byte[2048]; while (true) { size = zis.Read(data, 0, data.Length); if (size > 0) { streamWriter.Write(data, 0, size); } else { break; } } streamWriter.Close(); zis.Close(); } private bool ExcludeDir(string dirName) { foreach (string excludeDir in this.excludeDirs) { if (dirName == excludeDir) return true; } return false; } private void ZipFile(string inputPath, string zipName) { FileAttributes fa = File.GetAttributes(inputPath); if ((fa & FileAttributes.Directory) != 0) { string dirName = zipName + "/"; ZipEntry entry1 = new ZipEntry(dirName); this.zipOutputStream.PutNextEntry(entry1); string[] subDirs = Directory.GetDirectories(inputPath); //create directories first foreach (string subDir in subDirs) { DirectoryInfo info = new DirectoryInfo(subDir); string name = info.Name; if (this.ExcludeDir(name)) Log("Excluding " + dirName + name); else this.ZipFile(subDir, dirName + name); } //then store files string[] fileNames = Directory.GetFiles(inputPath); foreach (string fileName in fileNames) { FileInfo info = new FileInfo(fileName); string name = info.Name; this.ZipFile(fileName, dirName + name); } } else { Crc32 crc = new Crc32(); this.zipOutputStream.SetLevel(6); // 0 - store only to 9 - means best compression FileStream fs = null; try { fs = File.OpenRead(inputPath); } catch (IOException ioEx) { Log("WARNING! " + ioEx.Message);//might be in use, skip file in this case } if (fs != null) { byte[] buffer = new byte[fs.Length]; fs.Read(buffer, 0, buffer.Length); ZipEntry entry = new ZipEntry(zipName); entry.DateTime = DateTime.Now; // set Size and the crc, because the information // about the size and crc should be stored in the header // if it is not set it is automatically written in the footer. // (in this case size == crc == -1 in the header) // Some ZIP programs have problems with zip files that don't store // the size and crc in the header. entry.Size = fs.Length; fs.Close(); crc.Reset(); crc.Update(buffer); entry.Crc = crc.Value; this.zipOutputStream.PutNextEntry(entry); this.zipOutputStream.Write(buffer, 0, buffer.Length); } } } private void Encrypt(string inputPath, string outputPath) { RijndaelManaged rijndaelManaged = new RijndaelManaged(); byte[] encrypted; byte[] toEncrypt; //Create a new key and initialization vector. //myRijndael.GenerateKey(); //myRijndael.GenerateIV(); /*des.GenerateKey(); des.GenerateIV(); string temp1 = Convert.ToBase64String(des.Key); string temp2 = Convert.ToBase64String(des.IV);*/ //Get the key and IV. byte[] key = Convert.FromBase64String(keyString); byte[] IV = Convert.FromBase64String(ivString); //Get an encryptor. ICryptoTransform encryptor = rijndaelManaged.CreateEncryptor(key, IV); //Encrypt the data. MemoryStream msEncrypt = new MemoryStream(); CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write); //Convert the data to a byte array. toEncrypt = this.GetFileBytes(inputPath); //Write all data to the crypto stream and flush it. csEncrypt.Write(toEncrypt, 0, toEncrypt.Length); csEncrypt.FlushFinalBlock(); //Get encrypted array of bytes. encrypted = msEncrypt.ToArray(); WriteFileBytes(encrypted, outputPath); } private void Decrypt(string inputPath, string outputPath) { RijndaelManaged myRijndael = new RijndaelManaged(); //DES des = new DESCryptoServiceProvider(); byte[] key = Convert.FromBase64String(keyString); byte[] IV = Convert.FromBase64String(ivString); byte[] encrypted = this.GetFileBytes(inputPath); byte[] fromEncrypt; //Get a decryptor that uses the same key and IV as the encryptor. ICryptoTransform decryptor = myRijndael.CreateDecryptor(key, IV); //Now decrypt the previously encrypted message using the decryptor // obtained in the above step. MemoryStream msDecrypt = new MemoryStream(encrypted); CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read); fromEncrypt = new byte[encrypted.Length]; //Read the data out of the crypto stream. int bytesRead = csDecrypt.Read(fromEncrypt, 0, fromEncrypt.Length); byte[] readBytes = new byte[bytesRead]; Array.Copy(fromEncrypt, 0, readBytes, 0, bytesRead); this.WriteFileBytes(readBytes, outputPath); } private string GetFileName(string extension) { return baseDir + backupName + "_" + DateTime.Now.ToString("yyyyMMdd") + "." + extension; } private void BackupDB(string backupPath) { string sql = @"DECLARE @Date VARCHAR(300), @Dir VARCHAR(4000) --Get today date SET @Date = CONVERT(VARCHAR, GETDATE(), 112) --Set the directory where the back up file is stored SET @Dir = '"; sql += backupPath; sql += @"' --create a 'device' to write to first EXEC sp_addumpdevice 'disk', 'temp_device', @Dir --now do the backup BACKUP DATABASE " + this.dbName; sql += @" TO temp_device WITH FORMAT --Drop the device EXEC sp_dropdevice 'temp_device' "; //Console.WriteLine("sql="+sql); Backup.Log("Starting backup of " + this.dbName); ExecuteSQL(sql); } /// <summary> /// Executes the specified SQL /// Returns true if no errors were encountered during execution /// </summary> /// <param name="procedureName"></param> private void ExecuteSQL(string sql) { SqlConnection conn = new SqlConnection(this.GetDBConnectString()); try { SqlCommand comm = new SqlCommand(sql, conn); conn.Open(); comm.ExecuteNonQuery(); } finally { conn.Close(); } } private string GetDBConnectString() { StringBuilder builder = new StringBuilder(); builder.Append("Data Source=127.0.0.1; User ID="); builder.Append(this.dbUsername); builder.Append("; Password="); builder.Append(this.dbPassword); builder.Append("; Initial Catalog="); builder.Append(this.dbName); builder.Append(";Connect Timeout=30"); return builder.ToString(); } } } }

    Read the article

  • Eclipse juno can not open with error " An error has occurred. See the log file",ubuntu 12.04

    - by ana
    I'm trying to lunch eclipse for first time ,I've download the package and installed it manually.here is the log file : !SESSION 2012-10-10 16:06:11.460 ----------------------------------------------- eclipse.buildId=M20120914-1800 java.fullversion=GNU libgcj 4.6.3 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Command-line arguments: -os linux -ws gtk -arch x86_64 !ENTRY org.eclipse.osgi 4 0 2012-10-10 16:06:19.756 !MESSAGE Could not start bundle: org.eclipse.equinox.console !STACK 0 org.osgi.framework.BundleException: Could not start bundle: org.eclipse.equinox.console at org.eclipse.osgi.framework.internal.core.ConsoleManager.checkForConsoleBundle(ConsoleManager.java:217) at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:297) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176) at java.lang.reflect.Method.invoke(libgcj.so.12) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584) at org.eclipse.equinox.launcher.Main.run(Main.java:1438) at org.eclipse.equinox.launcher.Main.main(Main.java:1414) Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.equinox.console.command.adapter.Activator.start() of bundle org.eclipse.equinox.console. at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:734) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:683) at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381) at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300) at org.eclipse.osgi.framework.internal.core.ConsoleManager.checkForConsoleBundle(ConsoleManager.java:215) ...7 more Caused by: org.osgi.framework.BundleException: Exception in org.apache.felix.gogo.command.Activator.start() of bundle org.apache.felix.gogo.command. at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:734) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:683) at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381) at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300) at org.eclipse.equinox.console.command.adapter.Activator.startBundle(Activator.java:248) at org.eclipse.equinox.console.command.adapter.Activator.start(Activator.java:239) at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711) at java.security.AccessController.doPrivileged(libgcj.so.12) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702) ...11 more Caused by: java.lang.NoClassDefFoundError: org.apache.felix.gogo.command.OBR at java.lang.Class.initializeClass(libgcj.so.12) at org.apache.felix.gogo.command.Activator.start(Activator.java:54) at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711) at java.security.AccessController.doPrivileged(libgcj.so.12) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702) ...19 more Caused by: java.lang.ClassNotFoundException: org.apache.felix.bundlerepository.Repository at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107) at java.lang.ClassLoader.loadClass(libgcj.so.12) at java.lang.Class.initializeClass(libgcj.so.12) ...23 more Root exception: java.lang.NoClassDefFoundError: org.apache.felix.gogo.command.OBR at java.lang.Class.initializeClass(libgcj.so.12) at !ENTRY org.eclipse.osgi 2 0 2012-10-10 16:06:30.433 !MESSAGE The following is a complete list of bundles which are not resolved, see the prior log entry for the root cause if it exists: !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.433 !MESSAGE Bundle com.sun.el_2.2.0.v201108011116 [4] was not resolved. !SUBENTRY 2 com.sun.el 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.el_2.2.0. !SUBENTRY 2 com.sun.el 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet.http_2.5.0. !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.434 !MESSAGE Bundle javax.el_2.2.0.v201108011116 [6] was not resolved. !SUBENTRY 2 javax.el 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet_2.5.0. !SUBENTRY 2 javax.el 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet.http_2.5.0. !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.434 !MESSAGE Bundle javax.servlet_3.0.0.v201112011016 [8] was not resolved. !SUBENTRY 2 javax.servlet 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(&(osgi.ee=JavaSE)(version=1.6))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.434 !MESSAGE Bundle javax.servlet.jsp_2.2.0.v201112011158 [9] was not resolved. !SUBENTRY 2 javax.servlet.jsp 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.el_2.2.0. !SUBENTRY 2 javax.servlet.jsp 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet_2.6.0. !SUBENTRY 2 javax.servlet.jsp 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet.http_2.6.0. !SUBENTRY 2 javax.servlet.jsp 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(&(osgi.ee=JavaSE)(version=1.6))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.434 !MESSAGE Bundle org.apache.jasper.glassfish_2.2.2.v201205150955 [21] was not resolved. !SUBENTRY 2 org.apache.jasper.glassfish 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.el_2.2.0. !SUBENTRY 2 org.apache.jasper.glassfish 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet_2.6.0. !SUBENTRY 2 org.apache.jasper.glassfish 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet.descriptor_2.6.0. !SUBENTRY 2 org.apache.jasper.glassfish 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet.http_2.6.0. !SUBENTRY 2 org.apache.jasper.glassfish 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet.jsp_2.2.0. !SUBENTRY 2 org.apache.jasper.glassfish 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet.jsp.el_2.2.0. !SUBENTRY 2 org.apache.jasper.glassfish 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet.jsp.tagext_2.2.0. !SUBENTRY 2 org.apache.jasper.glassfish 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing optionally imported package javax.tools_0.0.0. !SUBENTRY 2 org.apache.jasper.glassfish 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(&(osgi.ee=JavaSE)(version=1.6))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.434 !MESSAGE Bundle org.eclipse.equinox.http.jetty_3.0.0.v20120522-1841 [91] was not resolved. !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.434 !MESSAGE Missing imported package javax.servlet_[2.6.0,4.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package javax.servlet.http_[2.6.0,4.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.equinox.http.servlet_1.0.0. !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.http_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.io.bio_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.io.nio_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.server_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.server.bio_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.server.handler_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.server.nio_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.server.session_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.server.ssl_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.servlet_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.util_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.util.component_[8.0.0,9.0.0). !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package org.eclipse.jetty.util.log_[8.0.0,9.0.0). !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.435 !MESSAGE Bundle org.eclipse.equinox.http.registry_1.1.200.v20120522-2049 [92] was not resolved. !SUBENTRY 2 org.eclipse.equinox.http.registry 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package javax.servlet_2.3.0. !SUBENTRY 2 org.eclipse.equinox.http.registry 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package javax.servlet.http_2.3.0. !SUBENTRY 2 org.eclipse.equinox.http.registry 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.435 !MESSAGE Bundle org.eclipse.equinox.http.servlet_1.1.300.v20120522-1841 [93] was not resolved. !SUBENTRY 2 org.eclipse.equinox.http.servlet 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package javax.servlet_[2.3.0,3.1.0). !SUBENTRY 2 org.eclipse.equinox.http.servlet 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing optionally imported package javax.servlet.annotation_2.6.0. !SUBENTRY 2 org.eclipse.equinox.http.servlet 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing optionally imported package javax.servlet.descriptor_2.6.0. !SUBENTRY 2 org.eclipse.equinox.http.servlet 2 0 2012-10-10 16:06:30.435 !MESSAGE Missing imported package javax.servlet.http_[2.3.0,3.1.0). !SUBENTRY 2 org.eclipse.equinox.http.servlet 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.436 !MESSAGE Bundle org.eclipse.equinox.jsp.jasper_1.0.400.v20120522-2049 [94] was not resolved. !SUBENTRY 2 org.eclipse.equinox.jsp.jasper 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing imported package javax.servlet_[2.4.0,3.1.0). !SUBENTRY 2 org.eclipse.equinox.jsp.jasper 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing optionally imported package javax.servlet.annotation_2.6.0. !SUBENTRY 2 org.eclipse.equinox.jsp.jasper 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing optionally imported package javax.servlet.descriptor_2.6.0. !SUBENTRY 2 org.eclipse.equinox.jsp.jasper 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing imported package javax.servlet.http_[2.4.0,3.1.0). !SUBENTRY 2 org.eclipse.equinox.jsp.jasper 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing imported package javax.servlet.jsp_[2.0.0,2.3.0). !SUBENTRY 2 org.eclipse.equinox.jsp.jasper 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing imported package org.apache.jasper.servlet_[0.0.0,6.0.0). !SUBENTRY 2 org.eclipse.equinox.jsp.jasper 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.436 !MESSAGE Bundle org.eclipse.equinox.jsp.jasper.registry_1.0.300.v20120522-2049 [95] was not resolved. !SUBENTRY 2 org.eclipse.equinox.jsp.jasper.registry 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing imported package org.eclipse.equinox.jsp.jasper_0.0.0. !SUBENTRY 2 org.eclipse.equinox.jsp.jasper.registry 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing imported package javax.servlet_2.4.0. !SUBENTRY 2 org.eclipse.equinox.jsp.jasper.registry 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing imported package javax.servlet.http_2.4.0. !SUBENTRY 2 org.eclipse.equinox.jsp.jasper.registry 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.436 !MESSAGE Bundle org.eclipse.help.webapp_3.6.101.v20120717-130216 [135] was not resolved. !SUBENTRY 2 org.eclipse.help.webapp 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing required bundle org.eclipse.equinox.jsp.jasper.registry_1.0.100. !SUBENTRY 2 org.eclipse.help.webapp 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing required bundle org.eclipse.equinox.http.registry_1.0.200. !SUBENTRY 2 org.eclipse.help.webapp 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing imported package javax.servlet_2.4.0. !SUBENTRY 2 org.eclipse.help.webapp 2 0 2012-10-10 16:06:30.436 !MESSAGE Missing imported package javax.servlet.http_2.4.0. !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.437 !MESSAGE Bundle org.eclipse.jdt.apt.pluggable.core_1.0.400.v20120522-1651 [139] was not resolved. !SUBENTRY 2 org.eclipse.jdt.apt.pluggable.core 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing imported package org.eclipse.jdt.internal.compiler.tool_0.0.0. !SUBENTRY 2 org.eclipse.jdt.apt.pluggable.core 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing imported package org.eclipse.jdt.internal.compiler.apt.dispatch_0.0.0. !SUBENTRY 2 org.eclipse.jdt.apt.pluggable.core 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing imported package org.eclipse.jdt.internal.compiler.apt.model_0.0.0. !SUBENTRY 2 org.eclipse.jdt.apt.pluggable.core 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing imported package org.eclipse.jdt.internal.compiler.apt.util_0.0.0. !SUBENTRY 2 org.eclipse.jdt.apt.pluggable.core 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(&(osgi.ee=JavaSE)(version=1.6))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.437 !MESSAGE Bundle org.eclipse.jdt.compiler.apt_1.0.500.v20120522-1651 [141] was not resolved. !SUBENTRY 2 org.eclipse.jdt.compiler.apt 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing optionally imported package org.eclipse.jdt.internal.compiler.tool_0.0.0. !SUBENTRY 2 org.eclipse.jdt.compiler.apt 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(&(osgi.ee=JavaSE)(version=1.6))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.437 !MESSAGE Bundle org.eclipse.jdt.compiler.tool_1.0.101.v20120522-1651 [142] was not resolved. !SUBENTRY 2 org.eclipse.jdt.compiler.tool 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(&(osgi.ee=JavaSE)(version=1.6))". !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.437 !MESSAGE Bundle org.eclipse.jetty.continuation_8.1.3.v20120522 [155] was not resolved. !SUBENTRY 2 org.eclipse.jetty.continuation 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing imported package javax.servlet_2.6.0. !SUBENTRY 2 org.eclipse.jetty.continuation 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing optionally imported package org.mortbay.log_[6.1.0,7.0.0). !SUBENTRY 2 org.eclipse.jetty.continuation 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing optionally imported package org.mortbay.util.ajax_[6.1.0,7.0.0). !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.437 !MESSAGE Bundle org.eclipse.jetty.http_8.1.3.v20120522 [156] was not resolved. !SUBENTRY 2 org.eclipse.jetty.http 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing imported package javax.servlet_2.6.0. !SUBENTRY 2 org.eclipse.jetty.http 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing imported package javax.servlet.http_2.6.0. !SUBENTRY 2 org.eclipse.jetty.http 2 0 2012-10-10 16:06:30.437 !MESSAGE Missing imported package org.eclipse.jetty.io_[8.1.0,9.0.0). org.eclipse.jetty.util.resource_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.http 2 0 2012-10-10 16:06:30.438 !MESSAGE Missing imported package org.eclipse.jetty.util.ssl_[8.1.0,9.0.0). !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.438 !MESSAGE Bundle org.eclipse.jetty.io_8.1.3.v20120522 [157] was not resolved. !SUBENTRY 2 org.eclipse.jetty.io 2 0 2012-10-10 16:06:30.438 !MESSAGE Missing imported package org.eclipse.jetty.util_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.io 2 0 2012-10-10 16:06:30.438 !MESSAGE Missing imported package org.eclipse.jetty.util.component_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.io 2 0 2012-10-10 16:06:30.438 !MESSAGE Missing imported package org.eclipse.jetty.util.log_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.io 2 0 2012-10-10 16:06:30.438 !MESSAGE Missing imported package org.eclipse.jetty.util.thread_[8.1.0,9.0.0). !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.438 !MESSAGE Bundle org.eclipse.jetty.security_8.1.3.v20120522 [158] was not resolved. !SUBENTRY 2 org.eclipse.jetty.security 2 0 2012-10-10 16:06:30.438 !MESSAGE Missing imported package javax.servlet_2.6.0. !SUBENTRY 2 org.eclipse.jetty.security 2 0 2012-10-10 16:06:30.438 !MESSAGE Missing imported package javax.servlet.http_2.6.0. !SUBENTRY 2 org.eclipse.jetty.security 2 0 2012-10-10 16:06:30.438 !MESSAGE Missing imported package org.eclipse.jetty.http_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.security 2 0 2012-10-10 16:06:30.438 !MESSAGE Missing imported package org.eclipse.jetty.server_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.security 2 0 2012-10-10 16:06:30.438 org.eclipse.jetty.jmx_8.0.0. !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.439 !MESSAGE Missing imported package org.eclipse.jetty.security_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing imported package org.eclipse.jetty.server_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing imported package org.eclipse.jetty.server.handler_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing imported package org.eclipse.jetty.server.nio_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing imported package org.eclipse.jetty.server.session_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing imported package org.eclipse.jetty.server.ssl_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing optionally imported package org.eclipse.jetty.util_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing optionally imported package org.eclipse.jetty.util.component_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing optionally imported package org.eclipse.jetty.util.log_[8.1.0,9.0.0). !SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing optionally imported package org.eclipse.jetty.util.resource_[8.1.0,9.0.0). !SUBENTRY 1 org.eclipse.osgi 2 0 2012-10-10 16:06:30.440 !MESSAGE Bundle org.eclipse.jetty.util_8.1.3.v20120522 [161] was not resolved. !SUBENTRY 2 org.eclipse.jetty.util 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing imported package javax.servlet_2.6.0. !SUBENTRY 2 org.eclipse.jetty.util 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing imported package javax.servlet.http_2.6.0. !SUBENTRY 2 org.eclipse.jetty.util 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing optionally imported package org.slf4j_[1.5.0,2.0.0). !SUBENTRY 2 org.eclipse.jetty.util 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing optionally imported package org.slf4j.helpers_[1.6.0,2.0.0). !SUBENTRY 2 org.eclipse.jetty.util 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing optionally imported package org.slf4j.impl_[1.5.0,2.0.0). !SUBENTRY 2 org.eclipse.jetty.util 2 0 2012-10-10 16:06:30.440 !MESSAGE Missing optionally imported package org.slf4j.spi_[1.6.0,2.0.0). !ENTRY org.eclipse.osgi 4 0 2012-10-10 16:06:30.441 !MESSAGE Application error !STACK 1 java.lang.ArrayIndexOutOfBoundsException: 0 at org.eclipse.e4.core.internal.di.ConstructorRequestor.calcDependentObjects(ConstructorRequestor.java:79) at org.eclipse.e4.core.internal.di.Requestor.getDependentObjects(Requestor.java:143) at org.eclipse.e4.core.internal.di.InjectorImpl.resolveArgs(InjectorImpl.java:408) at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:312) at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:240) at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:161) at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createDefaultHeadlessContext(E4Application.java:420) at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createDefaultContext(E4Application.java:434) at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:182) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:557) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180) at java.lang.reflect.Method.invoke(libgcj.so.12) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584) at org.eclipse.equinox.launcher.Main.run(Main.java:1438) at org.eclipse.equinox.launcher.Main.main(Main.java:1414) would you please help me with this?

    Read the article

  • ASP.NET GZip Encoding Caveats

    - by Rick Strahl
    GZip encoding in ASP.NET is pretty easy to accomplish using the built-in GZipStream and DeflateStream classes and applying them to the Response.Filter property.  While applying GZip and Deflate behavior is pretty easy there are a few caveats that you have watch out for as I found out today for myself with an application that was throwing up some garbage data. But before looking at caveats let’s review GZip implementation for ASP.NET. ASP.NET GZip/Deflate Basics Response filters basically are applied to the Response.OutputStream and transform it as data is written to it through the ASP.NET Response object. So a Response.Write eventually gets written into the output stream which if a filter is also written through the filter stream’s interface. To perform the actual GZip (and Deflate) encoding typically used by Web pages .NET includes the GZipStream and DeflateStream stream classes which can be readily assigned to the Repsonse.OutputStream. With these two stream classes in place it’s almost trivially easy to create a couple of reusable methods that allow you to compress your HTTP output. In my standard WebUtils utility class (from the West Wind West Wind Web Toolkit) created two static utility methods – IsGZipSupported and GZipEncodePage – that check whether the client supports GZip encoding and then actually encodes the current output (note that although the method includes ‘Page’ in its name this code will work with any ASP.NET output). /// <summary> /// Determines if GZip is supported /// </summary> /// <returns></returns> public static bool IsGZipSupported() { string AcceptEncoding = HttpContext.Current.Request.Headers["Accept-Encoding"]; if (!string.IsNullOrEmpty(AcceptEncoding) && (AcceptEncoding.Contains("gzip") || AcceptEncoding.Contains("deflate"))) return true; return false; } /// <summary> /// Sets up the current page or handler to use GZip through a Response.Filter /// IMPORTANT: /// You have to call this method before any output is generated! /// </summary> public static void GZipEncodePage() { HttpResponse Response = HttpContext.Current.Response; if (IsGZipSupported()) { string AcceptEncoding = HttpContext.Current.Request.Headers["Accept-Encoding"]; if (AcceptEncoding.Contains("deflate")) { Response.Filter = new System.IO.Compression.DeflateStream(Response.Filter, System.IO.Compression.CompressionMode.Compress); Response.Headers.Remove("Content-Encoding"); Response.AppendHeader("Content-Encoding", "deflate"); } else { Response.Filter = new System.IO.Compression.GZipStream(Response.Filter, System.IO.Compression.CompressionMode.Compress); Response.Headers.Remove("Content-Encoding"); Response.AppendHeader("Content-Encoding", "gzip"); } } } As you can see the actual assignment of the Filter is as simple as: Response.Filter = new DeflateStream(Response.Filter, System.IO.Compression.CompressionMode.Compress); which applies the filter to the OutputStream. You also need to ensure that your response reflects the new GZip or Deflate encoding and ensure that any pages that are cached in Proxy servers can differentiate between pages that were encoded with the various different encodings (or no encoding). To use this utility function now is trivially easy: In any ASP.NET code that wants to compress its Response output you simply use: protected void Page_Load(object sender, EventArgs e) { WebUtils.GZipEncodePage(); Entry = WebLogFactory.GetEntry(); var entries = Entry.GetLastEntries(App.Configuration.ShowEntryCount, "pk,Title,SafeTitle,Body,Entered,Feedback,Location,ShowTopAd", "TEntries"); if (entries == null) throw new ApplicationException("Couldn't load WebLog Entries: " + Entry.ErrorMessage); this.repEntries.DataSource = entries; this.repEntries.DataBind(); } Here I use an ASP.NET page, but the above WebUtils.GZipEncode() method call will work in any ASP.NET application type including HTTP Handlers. The only requirement is that the filter needs to be applied before any other output is sent to the OutputStream. For example, in my CallbackHandler service implementation by default output over a certain size is GZip encoded. The output that is generated is JSON or XML and if the output is over 5k in size I apply WebUtils.GZipEncode(): if (sbOutput.Length > GZIP_ENCODE_TRESHOLD) WebUtils.GZipEncodePage(); Response.ContentType = ControlResources.STR_JsonContentType; HttpContext.Current.Response.Write(sbOutput.ToString()); Ok, so you probably get the idea: Encoding GZip/Deflate content is pretty easy. Hold on there Hoss –Watch your Caching Or is it? There are a few caveats that you need to watch out for when dealing with GZip content. The fist issue is that you need to deal with the fact that some clients don’t support GZip or Deflate content. Most modern browsers support it, but if you have a programmatic Http client accessing your content GZip/Deflate support is by no means guaranteed. For example, WinInet Http clients don’t support GZip out of the box – it has to be explicitly implemented. Other low level HTTP clients on other platforms too don’t support GZip out of the box. The problem is that your application, your Web Server and Proxy Servers on the Internet might be caching your generated content. If you return content with GZip once and then again without, either caching is not applied or worse the wrong type of content is returned back to the client from a cache or proxy. The result is an unreadable response for *some clients* which is also very hard to debug and fix once in production. You already saw the issue of Proxy servers addressed in the GZipEncodePage() function: // Allow proxy servers to cache encoded and unencoded versions separately Response.AppendHeader("Vary", "Content-Encoding"); This ensures that any Proxy servers also check for the Content-Encoding HTTP Header to cache their content – not just the URL. The same thing applies if you do OutputCaching in your own ASP.NET code. If you generate output for GZip on an OutputCached page the GZipped content will be cached (either by ASP.NET’s cache or in some cases by the IIS Kernel Cache). But what if the next client doesn’t support GZip? She’ll get served a cached GZip page that won’t decode and she’ll get a page full of garbage. Wholly undesirable. To fix this you need to add some custom OutputCache rules by way of the GetVaryByCustom() HttpApplication method in your global_ASAX file: public override string GetVaryByCustomString(HttpContext context, string custom) { // Override Caching for compression if (custom == "GZIP") { string acceptEncoding = HttpContext.Current.Response.Headers["Content-Encoding"]; if (string.IsNullOrEmpty(acceptEncoding)) return ""; else if (acceptEncoding.Contains("gzip")) return "GZIP"; else if (acceptEncoding.Contains("deflate")) return "DEFLATE"; return ""; } return base.GetVaryByCustomString(context, custom); } In a page that use Output caching you then specify: <%@ OutputCache Duration="180" VaryByParam="none" VaryByCustom="GZIP" %> To use that custom rule. It’s all Fun and Games until ASP.NET throws an Error Ok, so you’re up and running with GZip, you have your caching squared away and your pages that you are applying it to are jamming along. Then BOOM, something strange happens and you get a lovely garbled page that look like this: Lovely isn’t it? What’s happened here is that I have WebUtils.GZipEncode() applied to my page, but there’s an error in the page. The error falls back to the ASP.NET error handler and the error handler removes all existing output (good) and removes all the custom HTTP headers I’ve set manually (usually good, but very bad here). Since I applied the Response.Filter (via GZipEncode) the output is now GZip encoded, but ASP.NET has removed my Content-Encoding header, so the browser receives the GZip encoded content without a notification that it is encoded as GZip. The result is binary output. Here’s what Fiddler says about the raw HTTP header output when an error occurs when GZip encoding was applied: HTTP/1.1 500 Internal Server Error Cache-Control: private Content-Type: text/html; charset=utf-8 Date: Sat, 30 Apr 2011 22:21:08 GMT Content-Length: 2138 Connection: close ?`I?%&/m?{J?J??t??` … binary output striped here Notice: no Content-Encoding header and that’s why we’re seeing this garbage. ASP.NET has stripped the Content-Encoding header but left our filter intact. So how do we fix this? In my applications I typically have a global Application_Error handler set up and in this case I’ve been using that. One thing that you can do in the Application_Error handler is explicitly clear out the Response.Filter and set it to null at the top: protected void Application_Error(object sender, EventArgs e) { // Remove any special filtering especially GZip filtering Response.Filter = null; … } And voila I get my Yellow Screen of Death or my custom generated error output back via uncompressed content. BTW, the same is true for Page level errors handled in Page_Error or ASP.NET MVC Error handling methods in a controller. Another and possibly even better solution is to check whether a filter is attached just before the headers are sent to the client as pointed out by Adam Schroeder in the comments: protected void Application_PreSendRequestHeaders() { // ensure that if GZip/Deflate Encoding is applied that headers are set // also works when error occurs if filters are still active HttpResponse response = HttpContext.Current.Response; if (response.Filter is GZipStream && response.Headers["Content-encoding"] != "gzip") response.AppendHeader("Content-encoding", "gzip"); else if (response.Filter is DeflateStream && response.Headers["Content-encoding"] != "deflate") response.AppendHeader("Content-encoding", "deflate"); } This uses the Application_PreSendRequestHeaders() pipeline event to check for compression encoding in a filter and adjusts the content accordingly. This is actually a better solution since this is generic – it’ll work regardless of how the content is cleaned up. For example, an error Response.Redirect() or short error display might get changed and the filter not cleared and this code actually handles that. Sweet, thanks Adam. It’s unfortunate that ASP.NET doesn’t natively clear out Response.Filters when an error occurs just as it clears the Response and Headers. I can’t see where leaving a Filter in place in an error situation would make any sense, but hey - this is what it is and it’s easy enough to fix as long as you know where to look. Riiiight! IIS and GZip I should also mention that IIS 7 includes good support for compression natively. If you can defer encoding to let IIS perform it for you rather than doing it in your code by all means you should do it! Especially any static or semi-dynamic content that can be made static should be using IIS built-in compression. Dynamic caching is also supported but is a bit more tricky to judge in terms of performance and footprint. John Forsyth has a great article on the benefits and drawbacks of IIS 7 compression which gives some detailed performance comparisons and impact reviews. I’ll post another entry next with some more info on IIS compression since information on it seems to be a bit hard to come by. Related Content Built-in GZip/Deflate Compression in IIS 7.x HttpWebRequest and GZip Responses © Rick Strahl, West Wind Technologies, 2005-2011Posted in ASP.NET   IIS7  

    Read the article

  • SQL SERVER – WRITELOG – Wait Type – Day 17 of 28

    - by pinaldave
    WRITELOG is one of the most interesting wait types. So far we have seen a lot of different wait types, but this log type is associated with log file which makes it interesting to deal with. From Book On-Line: WRITELOG Occurs while waiting for a log flush to complete. Common operations that cause log flushes are checkpoints and transaction commits. WRITELOG Explanation: This wait type is usually seen in the heavy transactional database. When data is modified, it is written both on the log cache and buffer cache. This wait type occurs when data in the log cache is flushing to the disk. During this time, the session has to wait due to WRITELOG. I have recently seen this wait type’s persistence at my client’s place, where one of the long-running transactions was stopped by the user causing it to roll back. In the future, I will see if I could re-create this situation once again on my machine to validate the relation. Reducing WRITELOG wait: There are several suggestions to reduce this wait stats: Move Transaction Log to Separate Disk from mdf and other files. Avoid cursor-like coding methodology and frequent committing of statements. Find the most active file based on IO stall time based on the script written over here. You can also use fn_virtualfilestats to find IO-related issues using the script mentioned over here. Check the IO-related counters (PhysicalDisk:Avg.Disk Queue Length, PhysicalDisk:Disk Read Bytes/sec and PhysicalDisk :Disk Write Bytes/sec) for additional details. Read about them over here. There are two excellent resources by Paul Randal, I suggest you understand the subject from those videos. The links to videos are here and here. Note: The information presented here is from my experience and there is no way that I claim it to be accurate. I suggest reading Book OnLine for further clarification. All the discussion of Wait Stats in this blog is generic and varies from system to system. It is recommended that you test this on a development server before implementing it to a production server. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, SQL Wait Stats, SQL Wait Types, T SQL, Technology

    Read the article

  • List of freely available programming books

    - by Karan Bhangui
    I'm trying to amass a list of programming books with opensource licenses, like Creative Commons, GPL, etc. The books can be about a particular programming language or about computers in general. Hoping you guys could help: Languages BASH Advanced Bash-Scripting Guide (An in-depth exploration of the art of shell scripting) C The C book C++ Thinking in C++ C++ Annotations How to Think Like a Computer Scientist C# .NET Book Zero: What the C or C++ Programmer Needs to Know About C# and the .NET Framework Illustrated C# 2008 (Dead Link) Data Structures and Algorithms with Object-Oriented Design Patterns in C# Threading in C# Common Lisp Practical Common Lisp On Lisp Java Thinking in Java How to Think Like a Computer Scientist Java Thin-Client Programming JavaScript Eloquent JavaScript Haskell Real world Haskell Learn You a Haskell for Great Good! Objective-C The Objective-C Programming Language Perl Extreme Perl (license not specified - home page is saying "freely available") The Mason Book (Open Publication License) Practical mod_perl (CreativeCommons Attribution Share-Alike License) Higher-Order Perl Learning Perl the Hard Way PHP Practical PHP Programming Zend Framework: Survive the Deep End PowerShell Mastering PowerShell Prolog Building Expert Systems in Prolog Adventure in Prolog Prolog Programming A First Course Logic, Programming and Prolog (2ed) Introduction to Prolog for Mathematicians Learn Prolog Now! Natural Language Processing Techniques in Prolog Python Dive Into Python Dive Into Python 3 How to Think Like a Computer Scientist A Byte of Python Python for Fun Invent Your Own Computer Games With Python Ruby Why's (Poignant) Guide to Ruby Programming Ruby - The Pragmatic Programmer's Guide Mr. Neighborly's Humble Little Ruby Book SQL Practical PostgreSQL x86 assembly Paul Carter's tutorial Lua Programming In Lua (for v5 but still largely relevant) Algorithms and Data Structures Algorithms Data Structures and Algorithms with Object-Oriented Design Patterns in Java Planning Algorithms Frameworks/Projects The Django Book The Pylons Book Introduction to Design Patterns in C++ with Qt 4 (Open Publication License) Version control The SVN Book Mercurial: The Definitive Guide Pro Git UNIX / Linux The Art of Unix Programming Linux Device Drivers, Third Edition Others Structure and Interpretation of Computer Programs The Little Book of Semaphores Mathematical Logic - an Introduction An Introduction to the Theory of Computation Developers Developers Developers Developers Linkers and loaders Beej's Guide to Network Programming Maven: The Definitive Guide I will expand on this list as I get comments or when I think of more :D Related: Programming texts and reference material for my Kindle What are some good free programming books? Can anyone recommend a free software engineering book? Edit: Oh I didn't notice the community wiki feature. Feel free to edit your suggestions right in!

    Read the article

< Previous Page | 66 67 68 69 70 71 72 73 74 75 76 77  | Next Page >