Java WriterAppender.setImmediateFlush方法代码示例

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
/**
 * Setup the main loggers for Novoa benchmarking routine.
 */
public void setupLoggers() {
    LoggerHelper.setupRootLogger(LoggerHelper.LEVEL_WARN, LoggerHelper.LEVEL_WARN, true);

    // Configuring loggers
    Logger.getRootLogger().setLevel(LoggerHelper.LEVEL_WARN);

    // MSA
    MSALogging.getBaseLogger().setLevel(LoggerHelper.LEVEL_WARN);

    // CW
    CWLogging.getBaseLogger().setLevel(LoggerHelper.LEVEL_WARN);

    // VLS
    VLSLogging.getBaseLogger().setLevel(LoggerHelper.LEVEL_WARN);

    // Heuristics
    HeuristicsLogging.getBaseLogger().setLevel(LoggerHelper.LEVEL_WARN);

    WriterAppender logAppender = new WriterAppender(DEFAULT_LOGGER_LAYOUT, err);
    logAppender.setThreshold(LoggerHelper.LEVEL_WARN);
    logAppender.setImmediateFlush(true);

    Logger.getRootLogger().removeAllAppenders();
    Logger.getRootLogger().addAppender(logAppender);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
public void setUp() throws Exception {
    super.setUp();
    writer = new StringWriter();

    WriterAppender appender = new WriterAppender(new SimpleLayout(), writer);
    appender.setImmediateFlush(true);

    Logger logger = Logger.getRootLogger();
    logger.addAppender(appender);
    logger.setLevel(Level.INFO);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
@Test
public void testValidIpv6AddressInQuorum() throws Exception {
    assumeIPv6Available();

    ClientBase.setupTestEnv();

    // setup the logger to capture all logs
    Layout layout =
            Logger.getRootLogger().getAppender("CONSOLE").getLayout();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    WriterAppender appender = new WriterAppender(layout, os);
    appender.setImmediateFlush(true);
    appender.setThreshold(Level.INFO);
    Logger qlogger = Logger.getLogger("org.apache.zookeeper.server.quorum");
    qlogger.addAppender(appender);

    try {
        final int CLIENT_PORT_QP1 = PortAssignment.unique();
        final int CLIENT_PORT_QP2 = PortAssignment.unique();

        String quorumCfgSection =
                "server.1=127.0.0.1:" + PortAssignment.unique()
                + ":" + PortAssignment.unique()
                + "\nserver.2=[0:0:0:0:0:0:0:1]:" + PortAssignment.unique()
                + ":" + PortAssignment.unique();

        MainThread q1 = new MainThread(1, CLIENT_PORT_QP1, quorumCfgSection);
        MainThread q2 = new MainThread(2, CLIENT_PORT_QP2, quorumCfgSection);

        q1.start();
        q2.start();

        Assert.assertTrue("waiting for server 1 being up",
                ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP1,
                        ClientBase.CONNECTION_TIMEOUT));

        Assert.assertTrue("waiting for server 2 being up",
                ClientBase.waitForServerUp("[0:0:0:0:0:0:0:1]:" + CLIENT_PORT_QP1,
                        ClientBase.CONNECTION_TIMEOUT));

        q1.shutdown();
        q2.shutdown();

        Assert.assertTrue("waiting for server 1 down",
                ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP1,
                        ClientBase.CONNECTION_TIMEOUT));

        Assert.assertTrue("waiting for server 2 down",
                ClientBase.waitForServerDown("[0:0:0:0:0:0:0:1]:" + CLIENT_PORT_QP1,
                        ClientBase.CONNECTION_TIMEOUT));

    } finally {
        qlogger.removeAppender(appender);
    }

    os.close();
    LineNumberReader r = new LineNumberReader(new StringReader(os.toString()));
    String line;
    boolean found = false;
    Pattern p =
            Pattern.compile(".*Resolved hostname: 0:0:0:0:0:0:0:1.*");
    while ((line = r.readLine()) != null) {
        found = p.matcher(line).matches();
        if (found) {
            break;
        }
    }
    Assert.assertTrue("IPv6 address resolved", found);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
@Test
public void testInvalidIpv6AddressInQuorum() throws Exception {
    assumeIPv6Available();

    ClientBase.setupTestEnv();

    // setup the logger to capture all logs
    Layout layout =
            Logger.getRootLogger().getAppender("CONSOLE").getLayout();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    WriterAppender appender = new WriterAppender(layout, os);
    appender.setImmediateFlush(true);
    appender.setThreshold(Level.INFO);
    Logger qlogger = Logger.getLogger("org.apache.zookeeper.server.quorum");
    qlogger.addAppender(appender);

    try {
        final int CLIENT_PORT_QP1 = PortAssignment.unique();

        String quorumCfgSection =
                "server.1=127.0.0.1:" + PortAssignment.unique()
                + ":" + PortAssignment.unique()
                + "\nserver.2=[0:0:0:0:0:0:0:1:" + PortAssignment.unique()
                + ":" + PortAssignment.unique();

        MainThread q1 = new MainThread(1, CLIENT_PORT_QP1, quorumCfgSection);
        q1.start();

        boolean isup =
                ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP1,
                        30000);

        Assert.assertFalse("Server never came up", isup);

        q1.shutdown();

        Assert.assertTrue("waiting for server 1 down",
                ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP1,
                        ClientBase.CONNECTION_TIMEOUT));

    } finally {
        qlogger.removeAppender(appender);
    }

    os.close();
    LineNumberReader r = new LineNumberReader(new StringReader(os.toString()));
    String line;
    boolean found = false;
    Pattern p =
            Pattern.compile(".*QuorumPeerConfig\\$ConfigException.*");
    while ((line = r.readLine()) != null) {
        found = p.matcher(line).matches();
        if (found) {
            break;
        }
    }
    Assert.assertTrue("complains about configuration", found);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
/**
 * Verify handling of quorum defaults
 * * default electionAlg is fast leader election
 */
@Test
public void testQuorumDefaults() throws Exception {
    ClientBase.setupTestEnv();

    // setup the logger to capture all logs
    Layout layout =
        Logger.getRootLogger().getAppender("CONSOLE").getLayout();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    WriterAppender appender = new WriterAppender(layout, os);
    appender.setImmediateFlush(true);
    appender.setThreshold(Level.INFO);
    Logger zlogger = Logger.getLogger("org.apache.zookeeper");
    zlogger.addAppender(appender);

    try {
        final int CLIENT_PORT_QP1 = PortAssignment.unique();
        final int CLIENT_PORT_QP2 = PortAssignment.unique();

        String quorumCfgSection =
            "server.1=127.0.0.1:" + PortAssignment.unique()
            + ":" + PortAssignment.unique()
            + "\nserver.2=127.0.0.1:" + PortAssignment.unique()
            + ":" + PortAssignment.unique();

        MainThread q1 = new MainThread(1, CLIENT_PORT_QP1, quorumCfgSection);
        MainThread q2 = new MainThread(2, CLIENT_PORT_QP2, quorumCfgSection);
        q1.start();
        q2.start();

        Assert.assertTrue("waiting for server 1 being up",
                ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP1,
                        CONNECTION_TIMEOUT));
        Assert.assertTrue("waiting for server 2 being up",
                ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP2,
                        CONNECTION_TIMEOUT));

        q1.shutdown();
        q2.shutdown();

        Assert.assertTrue("waiting for server 1 down",
                ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP1,
                        ClientBase.CONNECTION_TIMEOUT));
        Assert.assertTrue("waiting for server 2 down",
                ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP2,
                        ClientBase.CONNECTION_TIMEOUT));

    } finally {
        zlogger.removeAppender(appender);
    }
    os.close();
    LineNumberReader r = new LineNumberReader(new StringReader(os.toString()));
    String line;
    boolean found = false;
    Pattern p =
        Pattern.compile(".*FastLeaderElection.*");
    while ((line = r.readLine()) != null) {
        found = p.matcher(line).matches();
        if (found) {
            break;
        }
    }
    Assert.assertTrue("fastleaderelection used", found);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
/**
 * Ensures that client seeks for r/w servers while it's connected to r/o
 * server.
 */
@SuppressWarnings("deprecation")
@Test(timeout = 90000)
public void testSeekForRwServer() throws Exception {

    // setup the logger to capture all logs
    Layout layout = Logger.getRootLogger().getAppender("CONSOLE")
            .getLayout();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    WriterAppender appender = new WriterAppender(layout, os);
    appender.setImmediateFlush(true);
    appender.setThreshold(Level.INFO);
    Logger zlogger = Logger.getLogger("org.apache.zookeeper");
    zlogger.addAppender(appender);

    try {
        qu.shutdown(2);
        CountdownWatcher watcher = new CountdownWatcher();
        ZooKeeper zk = new ZooKeeper(qu.getConnString(),
                CONNECTION_TIMEOUT, watcher, true);
        watcher.waitForConnected(CONNECTION_TIMEOUT);

        // if we don't suspend a peer it will rejoin a quorum
        qu.getPeer(1).peer.suspend();

        // start two servers to form a quorum; client should detect this and
        // connect to one of them
        watcher.reset();
        qu.start(2);
        qu.start(3);
        ClientBase.waitForServerUp(qu.getConnString(), 2000);
        watcher.waitForConnected(CONNECTION_TIMEOUT);
        zk.create("/test", "test".getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE,
                CreateMode.PERSISTENT);

        // resume poor fellow
        qu.getPeer(1).peer.resume();
    } finally {
        zlogger.removeAppender(appender);
    }

    os.close();
    LineNumberReader r = new LineNumberReader(new StringReader(os
            .toString()));
    String line;
    Pattern p = Pattern.compile(".*Majority server found.*");
    boolean found = false;
    while ((line = r.readLine()) != null) {
        if (p.matcher(line).matches()) {
            found = true;
            break;
        }
    }
    Assert.assertTrue(
            "Majority server wasn't found while connected to r/o server",
            found);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
/**
 * Verify handling of quorum defaults
 * * default electionAlg is fast leader election
 */
@Test
public void testQuorumDefaults() throws Exception {
    ClientBase.setupTestEnv();

    // setup the logger to capture all logs
    Layout layout =
            Logger.getRootLogger().getAppender("CONSOLE").getLayout();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    WriterAppender appender = new WriterAppender(layout, os);
    appender.setImmediateFlush(true);
    appender.setThreshold(Level.INFO);
    Logger zlogger = Logger.getLogger("org.apache.zookeeper");
    zlogger.addAppender(appender);

    try {
        final int CLIENT_PORT_QP1 = PortAssignment.unique();
        final int CLIENT_PORT_QP2 = PortAssignment.unique();

        String quorumCfgSection =
            "server.1=127.0.0.1:" + PortAssignment.unique()
            + ":" + PortAssignment.unique() + ";" + CLIENT_PORT_QP1
            + "\nserver.2=127.0.0.1:" + PortAssignment.unique()
            + ":" + PortAssignment.unique() + ";" + CLIENT_PORT_QP2;

        MainThread q1 = new MainThread(1, CLIENT_PORT_QP1, quorumCfgSection);
        MainThread q2 = new MainThread(2, CLIENT_PORT_QP2, quorumCfgSection);
        q1.start();
        q2.start();

        Assert.assertTrue("waiting for server 1 being up",
                ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP1,
                        CONNECTION_TIMEOUT));
        Assert.assertTrue("waiting for server 2 being up",
                ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP2,
                        CONNECTION_TIMEOUT));

        q1.shutdown();
        q2.shutdown();

        Assert.assertTrue("waiting for server 1 down",
                ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP1,
                        ClientBase.CONNECTION_TIMEOUT));
        Assert.assertTrue("waiting for server 2 down",
                ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP2,
                        ClientBase.CONNECTION_TIMEOUT));

    } finally {
        zlogger.removeAppender(appender);
    }
    os.close();
    LineNumberReader r = new LineNumberReader(new StringReader(os.toString()));
    String line;
    boolean found = false;
    Pattern p =
            Pattern.compile(".*FastLeaderElection.*");
    while ((line = r.readLine()) != null) {
        found = p.matcher(line).matches();
        if (found) {
            break;
        }
    }
    Assert.assertTrue("fastleaderelection used", found);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
/**
 * Ensures that client seeks for r/w servers while it's connected to r/o
 * server.
 */
@SuppressWarnings("deprecation")
@Test(timeout = 90000)
public void testSeekForRwServer() throws Exception {
    // setup the logger to capture all logs
    Layout layout = Logger.getRootLogger().getAppender("CONSOLE")
            .getLayout();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    WriterAppender appender = new WriterAppender(layout, os);
    appender.setImmediateFlush(true);
    appender.setThreshold(Level.INFO);
    Logger zlogger = Logger.getLogger("org.apache.zookeeper");
    zlogger.addAppender(appender);

    try {
        qu.shutdown(2);
        CountdownWatcher watcher = new CountdownWatcher();
        ZooKeeper zk = new ZooKeeper(qu.getConnString(),
                CONNECTION_TIMEOUT, watcher, true);
        watcher.waitForConnected(CONNECTION_TIMEOUT);

        // if we don't suspend a peer it will rejoin a quorum
        qu.getPeer(1).peer.suspend();

        // start two servers to form a quorum; client should detect this and
        // connect to one of them
        watcher.reset();
        qu.start(2);
        qu.start(3);
        ClientBase.waitForServerUp(qu.getConnString(), 2000);
        watcher.waitForConnected(CONNECTION_TIMEOUT);
        zk.create("/test", "test".getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE,
                CreateMode.PERSISTENT);

        // resume poor fellow
        qu.getPeer(1).peer.resume();
    } finally {
        zlogger.removeAppender(appender);
    }

    os.close();
    LineNumberReader r = new LineNumberReader(new StringReader(os
            .toString()));
    String line;
    Pattern p = Pattern.compile(".*Majority server found.*");
    boolean found = false;
    while ((line = r.readLine()) != null) {
        if (p.matcher(line).matches()) {
            found = true;
            break;
        }
    }
    Assert.assertTrue(
            "Majority server wasn't found while connected to r/o server",
            found);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
/**
 * Ensures that client seeks for r/w servers while it's connected to r/o
 * server.
 */
@SuppressWarnings("deprecation")
@Test
public void testSeekForRwServer() throws Exception {

    // setup the logger to capture all logs
    Layout layout = Logger.getRootLogger().getAppender("CONSOLE")
            .getLayout();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    WriterAppender appender = new WriterAppender(layout, os);
    appender.setImmediateFlush(true);
    appender.setThreshold(Level.INFO);
    Logger zlogger = Logger.getLogger("org.apache.zookeeper");
    zlogger.addAppender(appender);

    try {
        qu.shutdown(2);
        CountdownWatcher watcher = new CountdownWatcher();
        ZooKeeper zk = new ZooKeeper(qu.getConnString(),
                CONNECTION_TIMEOUT, watcher, true);
        watcher.waitForConnected(CONNECTION_TIMEOUT);

        // if we don't suspend a peer it will rejoin a quorum
        qu.getPeer(1).peer.suspend();

        // start two servers to form a quorum; client should detect this and
        // connect to one of them
        watcher.reset();
        qu.start(2);
        qu.start(3);
        ClientBase.waitForServerUp(qu.getConnString(), 2000);
        watcher.waitForConnected(CONNECTION_TIMEOUT);
        zk.create("/test", "test".getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE,
                CreateMode.PERSISTENT);

        // resume poor fellow
        qu.getPeer(1).peer.resume();
    } finally {
        zlogger.removeAppender(appender);
    }

    os.close();
    LineNumberReader r = new LineNumberReader(new StringReader(os
            .toString()));
    String line;
    Pattern p = Pattern.compile(".*Majority server found.*");
    boolean found = false;
    while ((line = r.readLine()) != null) {
        if (p.matcher(line).matches()) {
            found = true;
            break;
        }
    }
    Assert.assertTrue(
            "Majority server wasn't found while connected to r/o server",
            found);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
private CLogOut() {
    final ByteArrayOutputStream stdStream = new ByteArrayOutputStream(){
        @Override
        public synchronized void flush() throws IOException {
            String theString=toString();
            
            /* OK:
            Establishing connection.
            Twitter Stream consumer-1[Establishing connection]
            Connection established.
            Receiving status stream.
            Twitter Stream consumer-1[Receiving stream]
            *Received:{...}
            Twitter Stream consumer-1[Disposing thread]

            */

            /* WRONG:
            Establishing connection.
            Twitter Stream consumer-1[Establishing connection]
            Exceeded connection limit for user
            420
            Waiting for 10000 milliseconds
            Twitter Stream consumer-1[Disposing thread]

            */
            Platform.runLater(()->{
                if(theString.startsWith("Establishing connection")){
                    message.set("Establishing connection...\n Please, wait a few seconds");
                } else if(theString.startsWith("Receiving status stream")){
                    message.set("Receiving tweets!! \n Press stop button to stop the search");
                } else if(theString.startsWith("Exceeded connection limit")){
                    message.set("Exceeded connection limit...");
                } else if(theString.startsWith("Waiting for ")){
                    message.set(theString +" or press stop button to stop the search");
                } else if(theString.contains("Disposing thread")){
                    message.set("The search has finished");
                }
            });
            System.out.print("***** "+theString);
            reset();
        }
    };
    
    Logger root = Logger.getRootLogger();
    WriterAppender writerAppender = new WriterAppender(new PatternLayout("%m%n"), stdStream);
    root.addAppender(writerAppender);
    writerAppender.setImmediateFlush(true);
}
 

import org.apache.log4j.WriterAppender; //导入方法依赖的package包/类
/**
 * Verify handling of quorum defaults
 * * default electionAlg is fast leader election
 */
@Test
public void testQuorumDefaults() throws Exception {
    LOG.info("STARTING " + getName());
    ClientBase.setupTestEnv();

    // setup the logger to capture all logs
    Layout layout =
        Logger.getRootLogger().getAppender("CONSOLE").getLayout();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    WriterAppender appender = new WriterAppender(layout, os);
    appender.setImmediateFlush(true);
    appender.setThreshold(Level.INFO);
    Logger zlogger = Logger.getLogger("org.apache.zookeeper");
    zlogger.addAppender(appender);

    try {
        final int CLIENT_PORT_QP1 = PortAssignment.unique();
        final int CLIENT_PORT_QP2 = PortAssignment.unique();

        String quorumCfgSection =
            "server.1=127.0.0.1:" + PortAssignment.unique()
            + ":" + PortAssignment.unique()
            + "\nserver.2=127.0.0.1:" + PortAssignment.unique()
            + ":" + PortAssignment.unique();

        MainThread q1 = new MainThread(1, CLIENT_PORT_QP1, quorumCfgSection);
        MainThread q2 = new MainThread(2, CLIENT_PORT_QP2, quorumCfgSection);
        q1.start();
        q2.start();

        assertTrue("waiting for server 1 being up",
                ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP1,
                        CONNECTION_TIMEOUT));
        assertTrue("waiting for server 2 being up",
                ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP2,
                        CONNECTION_TIMEOUT));

        q1.shutdown();
        q2.shutdown();

        assertTrue("waiting for server 1 down",
                ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP1,
                        ClientBase.CONNECTION_TIMEOUT));
        assertTrue("waiting for server 2 down",
                ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP2,
                        ClientBase.CONNECTION_TIMEOUT));

    } finally {
        zlogger.removeAppender(appender);
    }
    os.close();
    LineNumberReader r = new LineNumberReader(new StringReader(os.toString()));
    String line;
    boolean found = false;
    Pattern p =
        Pattern.compile(".*FastLeaderElection.*");
    while ((line = r.readLine()) != null) {
        found = p.matcher(line).matches();
        if (found) {
            break;
        }
    }
    assertTrue("fastleaderelection used", found);
}