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

        }
        if(encoding == null) {
            throw new IllegalArgumentException();
        }
        try {
            FileOutputStream out = new FileOutputStream(file, append);
            OutputStreamWriter osw = new OutputStreamWriter(out, encoding);
            this._writer = new FastBufferedWriter(osw, 16384);
        } catch (IOException e) {
            throw new IllegalStateException("failed to writer to file: " + file.getAbsolutePath(), e);
        }

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 * @author Olivier Chalouhi
 *
 */
public class Logger {
    public static void log(String value) {
    FileOutputStream fos = null;
    try {
      String userPath = System.getProperty("user.dir") + System.getProperty("file.separator");
      File logFile = new File(userPath + "snippet.log");
      fos = new FileOutputStream(logFile,true);
      fos.write((value+"\n").getBytes());
      fos.close();
    } catch(Exception e) {
      //Do nothing
    }
  }

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

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      saveKey(file, key);
    }
    
    private static void saveKey(String file, SecretKey key) throws CryptoException, IOException {
      ArgCheck.isNotNull(file);
      FileOutputStream fos = new FileOutputStream(file);
      try {
          KeyStore store = KeyStore.getInstance("JCEKS"); //$NON-NLS-1$
          store.load(null,null);
        store.setKeyEntry(DEFAULT_ALIAS, key, DEFAULT_STORE_PASSWORD.toCharArray(),null);
        store.store(fos, DEFAULT_STORE_PASSWORD.toCharArray());
      } catch (GeneralSecurityException e) {
        throw new CryptoException(e);
      } finally {
        fos.close();
      }  
    }

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  }
  
  
  public static void copy(File fromFile, File toFile) throws IOException {
    FileInputStream from = null;
    FileOutputStream to = null;
    try {
      from = new FileInputStream(fromFile);
      to = new FileOutputStream(toFile);
      byte[] buffer = new byte[4096];
      int bytesRead;


      while ((bytesRead = from.read(buffer)) != -1)
        to.write(buffer, 0, bytesRead); // write
    } finally {
      if (from != null)
        try {
          from.close();
        } catch (IOException e) {
          ;
        }
      if (to != null)
        try {
          to.close();
        } catch (IOException e) {
        }
    }
  }

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  public static void copyWithVariableSubstitution(File source, File target, Map<String,String> variables, String varPrefix, String varSuffix) throws IOException {
    BufferedReader reader = null;
    BufferedWriter writer = null;
    try {
      reader = new BufferedReader(new InputStreamReader(new FileInputStream(source)));
      writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(target)));
      String line = reader.readLine();
      while (line != null) {
        line = substitute(line, variables, varPrefix, varSuffix);
        writer.write(line + "\n");
        line = reader.readLine();

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          if(entry.isDirectory()) {
            (new File(targetDir, entry.getName())).mkdir();
            continue;
          }
          InputStream in = zipFile.getInputStream(entry);
          OutputStream out = new FileOutputStream(new File(targetDir, entry.getName()));    
          try {
            WGUtils.inToOut(in, out, 2048);
          } finally {
            out.close();
            in.close();
          }
        }
        zipFile.close();
    } finally {

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  public static final void unzip(InputStream zipIn, File targetDir) throws ZipException, IOException {
    File temp = File.createTempFile("UNZIP", null);
    temp.deleteOnExit();
    
    try {
      OutputStream out = new FileOutputStream(temp);
      try {
        WGUtils.inToOut(zipIn, out, 2048);
      } finally {
        out.close();
      }
      unzip(temp, targetDir);
    } finally {
      temp.delete();
    }

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         uctx.unmarshalDocument(new FileInputStream("src/test/resources/portal/portal/classic/navigation.xml"), null);
      assertEquals(PageNavigation.class, obj.getClass());


      IMarshallingContext mctx = bfact.createMarshallingContext();
      mctx.setIndent(2);
      mctx.marshalDocument(obj, "UTF-8", null, new FileOutputStream("target/navigation.xml"));


      obj = uctx.unmarshalDocument(new FileInputStream("target/navigation.xml"), null);
      assertEquals(PageNavigation.class, obj.getClass());
   }

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            new FileInputStream("src/test/resources/portal/portal/classic/portlet-preferences.xml"), null);
      assertEquals(PortletPreferencesSet.class, obj.getClass());


      IMarshallingContext mctx = bfact.createMarshallingContext();
      mctx.setIndent(2);
      mctx.marshalDocument(obj, "UTF-8", null, new FileOutputStream("target/portlet-preferences.xml"));
      assertEquals(PortletPreferencesSet.class, obj.getClass());
   }

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