Examples of java.io.FilterOutputStream

java.io.FilterOutputStream
This class is the superclass of all classes that filter output streams. These streams sit on top of an already existing output stream (the underlying output stream) which it uses as its basic sink of data, but possibly transforming the data along the way or providing additional functionality.
The class FilterOutputStream itself simply overrides all methods of OutputStream with versions that pass all requests to the underlying output stream. Subclasses of FilterOutputStream may further override some of these methods as well as provide additional methods and fields. @author Jonathan Payne @version 1.32, 11/17/05 @since JDK1.0

                // Get the serializer
                this.serializer = (Serializer) this.selector.select(serializerType);


                // Direct its output to the zip file, filtering calls to close()
                // (we don't want the archive to be closed by the serializer)
                this.serializer.setOutputStream(new FilterOutputStream(this.zipOutput) {
                    public void close() { /* nothing */ }
                });


                // Set it as the current XMLConsumer
                setConsumer(serializer);

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               return value;
             }
          }));
      this.out = new DataOutputStream
        (new BufferedOutputStream
         (new FilterOutputStream(socket.getOutputStream()) {
             public void write(byte[] buf, int o, int len) throws IOException {
               out.write(buf, o, len);
               if (writingCall != null) {
                 writingCall.touch();
               }

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        //we need to create a safe output stream that cannot be closed
        final OutputStream safeOutputStream = new CloseShieldOutputStream(os);


        //get the encoder
        final FilterOutputStream fos = getBinaryValueType().getEncoder(safeOutputStream);


        //stream with the encoder
        streamBinaryTo(fos);


        //we do have to close the encoders output stream though
        //to ensure that all bytes have been written, this is
        //particularly nessecary for Apache Commons Codec stream encoders
        try {
            fos.close();
        } catch(final IOException ioe) {
            LOG.error("Unable to close stream: " + ioe.getMessage(), ioe);
        }
    }

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    public BinaryValue convertTo(BinaryValueType binaryValueType) throws XPathException {
        //TODO temporary approach, consider implementing a TranscodingBinaryValueFromBinaryString(BinaryValueFromBinaryString) class
        //that only does the transncoding lazily


        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        FilterOutputStream fos = null;
        try {


            //transcode
            fos = binaryValueType.getEncoder(baos);
            streamBinaryTo(fos);


        } catch(final IOException ioe) {
            throw new XPathException(ioe);
        } finally {
            if(fos != null) {
                try {
                    fos.close();
                } catch(final IOException ioe) {
                    LOG.error("Unable to close stream: " + ioe.getMessage(), ioe);
                }
            }

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        //we need to create a safe output stream that cannot be closed
        final OutputStream safeOutputStream = new CloseShieldOutputStream(os);
        
        //get the decoder
        final FilterOutputStream fos = getBinaryValueType().getDecoder(safeOutputStream);
        
        //write with the decoder
        final byte data[] = value.getBytes();
        fos.write(data);
        
        //we do have to close the decoders output stream though
        //to ensure that all bytes have been written, this is
        //particularly nessecary for Apache Commons Codec stream encoders
        try {
            fos.close();
        } catch(final IOException ioe) {
            LOG.error("Unable to close stream: " + ioe.getMessage(), ioe);
        }
    }

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                    throw JMSExceptionSupport.create(e);
                }
                length = 0;
                compressed = true;
                final Deflater deflater = new Deflater(Deflater.BEST_SPEED);
                os = new FilterOutputStream(new DeflaterOutputStream(os, deflater)) {
                    @Override
                    public void write(byte[] arg0) throws IOException {
                        length += arg0.length;
                        out.write(arg0);
                    }

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        try {
            TransientFileFactory fileFactory = TransientFileFactory.getInstance();
            final File tmpFile = fileFactory.createTransientFile("bin", null, null);


            return new FilterOutputStream(new FileOutputStream(tmpFile)) {
                File f = tmpFile;


                public void close() throws IOException {
                    super.close();

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        try {
            TransientFileFactory fileFactory = TransientFileFactory.getInstance();
            final File tmpFile = fileFactory.createTransientFile("bin", null, null);


            return new FilterOutputStream(new FileOutputStream(tmpFile)) {


                public void write(byte[] bytes, int off, int len) throws IOException {
                    out.write(bytes, off, len);
                }

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        }
        assertIsFolder(folderPath);


        final MemoryFile file = new MemoryFile();
        entries.put(filePath, file);
        return new FilterOutputStream(new ByteArrayOutputStream()) {
            public void write(byte[] bytes, int off, int len) throws IOException {
                out.write(bytes, off, len);
            }


            public void close() throws IOException {

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            }


            this.currentPath = pkgName + fileName;
            this.currentBaos = new ByteArrayOutputStream();


            return new FilterOutputStream( this.currentBaos ) {
                public void close() {
                    // don't let this stream close
                }
            };
        }

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