Examples of java.io.FilterInputStream

java.io.FilterInputStream
A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality. The class FilterInputStream itself simply overrides all methods of InputStream with versions that pass all requests to the contained input stream. Subclasses of FilterInputStream may further override some of these methods and may also provide additional methods and fields. @author Jonathan Payne @version 1.33, 04/07/06 @since JDK1.0


            // create an InputStream that keeps a hard reference to the temp file
            // in order to prevent its automatic deletion once the associated
            // File object is reclaimed by the garbage collector;
            // pass InputStream wrapper to ValueFactory, that creates a BinaryValue.
            return factory.createValue(new FilterInputStream(new FileInputStream(tmpFile)) {


                public void close() throws IOException {
                    in.close();
                    // temp file can now safely be removed
                    tmpFile.delete();

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                InputStream in = rs.getBinaryStream(1);
                /**
                 * return an InputStream wrapper in order to
                 * close the ResultSet when the stream is closed
                 */
                return new FilterInputStream(in) {
                    public void close() throws IOException {
                        super.close();
                        // close ResultSet
                        closeResultSet(rs);
                    }

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            /**
             * return an InputStream wrapper in order to
             * close the ResultSet when the stream is closed
             */
            return new FilterInputStream(in) {
                public void close() throws IOException {
                    in.close();
                    // now it's safe to close ResultSet
                    closeResultSet(rs);
                }

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                }


                 // return an InputStream wrapper in order to close the ResultSet when the stream is closed
                close = false;
                final ResultSet rs2 = rs;
                return new FilterInputStream(in) {


                    public void close() throws IOException {
                        try {
                            in.close();
                        } finally {

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            /**
             * return an InputStream wrapper in order to
             * close the ResultSet when the stream is closed
             */
            return new FilterInputStream(in) {
                public void close() throws IOException {
                    in.close();
                    // now it's safe to close ResultSet
                    closeResultSet(rs);
                }

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                    /**
                     * return an InputStream wrapper in order to
                     * close the ResultSet when the stream is closed
                     */
                    return new FilterInputStream(in) {
                        public void close() throws IOException {
                            in.close();
                            // now it's safe to close ResultSet
                            closeResultSet(rs);
                        }

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    @Test
    public void skipUsingRead() throws Exception {
        skip(new StreamWrapper() {
                public InputStream wrap(InputStream toWrap) {
                    return new FilterInputStream(toWrap) {
                        public long skip(long s) {
                            return 0;
                        }
                    };
                }

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    @Test
    public void skipUsingSkipAndRead() throws Exception {
        skip(new StreamWrapper() {
                public InputStream wrap(final InputStream toWrap) {
                    return new FilterInputStream(toWrap) {
                        boolean skipped;
                        public long skip(long s) throws IOException {
                            if (!skipped) {
                                toWrap.skip(5);
                                skipped = true;

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        if (ze == null) {
            z.close();
            throw new BuildException("no entry " + getName() + " in "
                                     + getArchive());
        }
        return new FilterInputStream(z.getInputStream(ze)) {
            public void close() throws IOException {
                FileUtils.close(in);
                z.close();
            }
            protected void finalize() throws Throwable {

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        }
      }
      socket.setSoTimeout(timeout);
      this.in = new DataInputStream
        (new BufferedInputStream
         (new FilterInputStream(socket.getInputStream()) {
             public int read(byte[] buf, int off, int len) throws IOException {
               int value = super.read(buf, off, len);
               if (readingCall != null) {
                 readingCall.touch();
               }

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