Examples of org.apache.zookeeper.common.AtomicFileWritingIdiom

org.apache.zookeeper.common.AtomicFileWritingIdiom

    public static void writeDynamicConfig(String dynamicConfigFilename, String configFileStr,
            final boolean configBackwardCompatibilityMode, final QuorumVerifier qv,
            final boolean needEraseStaticClientInfo) throws IOException {


        final String actualDynamicConfigFilename = dynamicConfigFilename;
        new AtomicFileWritingIdiom(new File(actualDynamicConfigFilename), new OutputStreamStatement() {
            @Override
            public void write(OutputStream outConfig) throws IOException {
                byte b[] = qv.toString().getBytes();
                outConfig.write(b);
            }

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            cfg.load(in);
        } finally {
            in.close();
        }


        new AtomicFileWritingIdiom(new File(configFileStr), new WriterStatement() {
            @Override
            public void write(Writer out) throws IOException {
                for (Entry<Object, Object> entry : cfg.entrySet()) {
                    String key = entry.getKey().toString().trim();

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   * @param value the long value to write to the named file
   * @throws IOException if the file cannot be written atomically
   */
    private void writeLongToFile(String name, final long value) throws IOException {
        File file = new File(logFactory.getSnapDir(), name);
        new AtomicFileWritingIdiom(file, new WriterStatement() {
            @Override
            public void write(Writer bw) throws IOException {
                bw.write(Long.toString(value));
            }
        });

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    /**
     * Backward compatibility -- It would backup static config file on bootup
     * if users write dynamic configuration in "zoo.cfg".
     */
    private void backupOldConfig() throws IOException {
        new AtomicFileWritingIdiom(new File(configFileStr + ".bak"), new OutputStreamStatement() {
            @Override
            public void write(OutputStream output) throws IOException {
                InputStream input = null;
                try {
                    input = new FileInputStream(new File(configFileStr));

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    public static void writeDynamicConfig(final String dynamicConfigFilename,
                                          final QuorumVerifier qv,
                                          final boolean needKeepVersion)
            throws IOException {


        new AtomicFileWritingIdiom(new File(dynamicConfigFilename), new WriterStatement() {
            @Override
            public void write(Writer out) throws IOException {
                Properties cfg = new Properties();
                cfg.load( new StringReader(
                        qv.toString()));

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            cfg.load(in);
        } finally {
            in.close();
        }


        new AtomicFileWritingIdiom(new File(configFileStr), new WriterStatement() {
            @Override
            public void write(Writer out) throws IOException {
                for (Entry<Object, Object> entry : cfg.entrySet()) {
                    String key = entry.getKey().toString().trim();

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   * @param value the long value to write to the named file
   * @throws IOException if the file cannot be written atomically
   */
    private void writeLongToFile(String name, final long value) throws IOException {
        File file = new File(logFactory.getSnapDir(), name);
        new AtomicFileWritingIdiom(file, new WriterStatement() {
            @Override
            public void write(Writer bw) throws IOException {
                bw.write(Long.toString(value));
            }
        });

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Related Classes of org.apache.zookeeper.common.AtomicFileWritingIdiom

org.apache.zookeeper.server.quorum.QuorumPeer

org.apache.zookeeper.server.quorum.QuorumPeerConfig

java.io.OutputStreamWriter

java.io.BufferedWriter

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