Examples of java.io.FileOutputStream

java.io.FileOutputStream
FileOutputStream is a class whose underlying stream is represented by a file in the operating system. The bytes that are written to this stream are passed directly to the underlying operating system equivalent function. Since overhead may be high in writing to the OS, FileOutputStreams are usually wrapped with a BufferedOutputStream to reduce the number of times the OS is called.
BufferedOutputStream buf = new BufferedOutputStream(new FileOutputStream("aFile.txt")); @see FileInputStream

    managers.addAttribute("members", "designer");


    XMLWriter writer = null;
    try {
      writer = new XMLWriter(OutputFormat.createPrettyPrint());
      writer.setOutputStream(new FileOutputStream(new File(getWGABase().getLocation().toFile(), "auth.xml")));
      writer.write(auth);
    } catch (Exception e) {
      throw new CoreException(new Status(Status.ERROR, WGADesignerPlugin.PLUGIN_ID, "Unable to generate default auth configuration.", e));
    } finally {
      try {
        if (writer != null) {
          writer.close();
        }
      } catch (IOException e) {
      }
    }
    FileOutputStream configFileStream = null;
    try {
      _config = WGARuntimeConfiguration.createDefaultConfig();
      synchronized (_wgaConfigLock) {
        configFileStream = new FileOutputStream(getConfigFile().getLocation().toFile());
        WGARuntimeConfiguration.write(_config, configFileStream);
      }
    } catch (Exception e) {
      throw new CoreException(new Status(Status.ERROR, WGADesignerPlugin.PLUGIN_ID, "Unable to generate default runtime configuration.", e));
    } finally {
      if (configFileStream != null) {
        try {
          configFileStream.close();
        } catch (IOException e) {
        }
      }


    }

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  public void saveWGAConfig(WGAConfiguration config) throws IOException {


    synchronized (_wgaConfigLock) {


      FileOutputStream wgaxmlstream = null;
      try {
          IFile wgaConfig = getWGABase().getFile(new Path("wgaconfig.xml"));
          if (wgaConfig.exists() && wgaConfig.isReadOnly()) {
                    ResourceAttributes attributes = wgaConfig.getResourceAttributes();
                    attributes.setReadOnly(false);
                    wgaConfig.setResourceAttributes(attributes);                
          }
        wgaxmlstream = new FileOutputStream(wgaConfig.getLocation().toFile());
        WGAConfiguration.write(config, wgaxmlstream);
        _wgaBase.refreshLocal(IResource.DEPTH_ONE, null);
      } catch (Exception e) {
        IOException ioe = new IOException("Unable to save wga configuration.");
        ioe.setStackTrace(e.getStackTrace());
        throw ioe;
      } finally {
        if (wgaxmlstream != null) {
          try {
            wgaxmlstream.close();
          } catch (IOException e) {
          }
        }
      }

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  public WGARuntimeConfiguration getConfiguration() {
    return _config;
  }


  public void flushConfig() throws CoreException {
    FileOutputStream configFileStream = null;
    try {
      IFile configFile = getConfigFile();
      if (configFile.isReadOnly()) {
        ResourceAttributes attributes = configFile.getResourceAttributes(); // ResourceAttributes.fromFile(configFile.getLocation().toFile());
        attributes.setReadOnly(false);
        configFile.setResourceAttributes(attributes);
      }


      // we might have to update root url bc. of distribution changes
      if (getRootURL() != null) {
        WGAConfiguration wgaConfig = retrieveWGAConfig(false);
        if (wgaConfig != null) {
          wgaConfig.getServerOptions().put(WGAConfiguration.SERVEROPTION_ROOT_URL, getRootURL().toString());
          saveWGAConfig(wgaConfig);
        }
      }
      configFileStream = new FileOutputStream(configFile.getLocation().toFile());
      WGARuntimeConfiguration.write(_config, configFileStream);


      _project.refreshLocal(IResource.DEPTH_ONE, null);
    } catch (Exception e) {
      WGADesignerPlugin.getDefault().logError("Unable to save config of runtime '" + getName() + "'.", e);
      throw new CoreException(new Status(Status.ERROR, WGADesignerPlugin.PLUGIN_ID, "Unable to save config of runtime '" + getName() + "'.", e));
    } finally {
      try {
        if (configFileStream != null) {
          configFileStream.close();
        }
      } catch (IOException e) {


      }
    }

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                question, question, JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
        if (ret == JOptionPane.YES_OPTION) {
            File storageFile = appSettings.getStorageFile();
            try {
                new XmlExport(dataPool, dataSettings,
                        new FileOutputStream(storageFile)).doWork();
                logger.info("Auto-export to:" + storageFile);
            } catch (Exception ex) {
                logger.fatal("Couldn't auto-export to:" + storageFile, ex);
                getApplication().getActiveWindow().getStatusBar().
                        setErrorMessage("Couldn't import from " + storageFile

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    if (response == SWT.YES) {


      SortedProperties sortedProperties = new SortedProperties();
      sortedProperties.putAll(_props);
      FileOutputStream labelFileStream = null;
      try {
        labelFileStream = new FileOutputStream(_file.getLocation().toString());
        sortedProperties.store(labelFileStream, null);
        _file.refreshLocal(IResource.DEPTH_ZERO, new NullProgressMonitor());
      } catch (IOException e) {
        WGADesignerPlugin.getDefault().logInfo("Unable to store file: " + _file.getLocation(), e);
      } catch (CoreException e) {
        WGADesignerPlugin.getDefault().logInfo("Unable to refresh resource on: " + _file.getLocation(), e);
      } finally {
        try {
          labelFileStream.close();
        } catch (IOException e) {
          WGADesignerPlugin.getDefault().logInfo("Unable to close FileOutputStream for: " + _file.getLocation(), e);
        }
      }
    }

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    new Thread() {
      public void run() {    
        try {
          Model model = ModelFactory.createDefaultModel();
          model.read(result.in,"");
          OutputStream out = new FileOutputStream("test18-m"+modelOrdinal+".rdf");
          model.write(out, "");
          out.close();
        } catch (IOException e) {
          throw new RuntimeException(e);
        }
      }
    }.start();

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     * @param header
     * @throws IOException
     * @since 4.3
     */
    public static void print(String fileName, Properties props, String header) throws IOException {
        FileOutputStream stream = null;
        try {
            stream = new FileOutputStream(fileName);
            props.store(stream, header);
            stream.flush();
        } finally {
            try {
                if (stream != null) {
                    stream.close();
                }
            } catch (Exception e) {
            }
        }
    }

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     * with the specified header.  
     * Results are sorted by property name.
     */    
    public static void print( String fileName, Properties props ) throws IOException {


        FileOutputStream stream = null;
        PrintStream writer = null;


        try {


        stream = new FileOutputStream(fileName);
          writer = new PrintStream(stream);
    
            List names = new ArrayList();
            Enumeration enumeration = props.propertyNames();
            while ( enumeration.hasMoreElements() ) {
                String name = (String) enumeration.nextElement();
                names.add(name);
            }
            Collections.sort(names);
    
            StringBuffer sb;
    
            for (Iterator nIt=names.iterator(); nIt.hasNext(); ) {
              String name = (String) nIt.next();
    
              String value = props.getProperty(name);
    
              sb = new StringBuffer();
    
              sb.append(name);
              sb.append("="); //$NON-NLS-1$
              sb.append(value);
    
              writer.println(sb.toString());
            }
            writer.flush();
        } finally {
            try {
                if (writer != null) {
                    writer.close();
                }
            } catch (Exception e){
                                
            }
            try {
                if (stream != null) {
                    stream.close();
                }
            } catch (Exception e){
                                
            }            
        }

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              }
            };
          }
          
        });
            this.stream = new BufferedOutputStream(new FileOutputStream(f));
          }
          if (buffer.length == 0) {
            stream.close();
            stream = null;
            streamIndex++;

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        ClobType cv = new ClobType(clob);
        String key = cv.getReferenceStreamId();
        
        // now force to serialize
        File saved = new File(UnitTestUtil.getTestScratchPath()+"/clobassaved.bin"); //$NON-NLS-1$
        ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(saved));
        out.writeObject(cv);
        out.close();
        
        // now read back the object from serilized state
        ObjectInputStream in = new ObjectInputStream(new FileInputStream(saved));

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