Example usage for org.apache.hadoop.util StringUtils simpleHostname

Introduction

In this page you can find the example usage for org.apache.hadoop.util StringUtils simpleHostname.

Prototype

public static String simpleHostname(String fullHostname) 

Source Link

Document

Given a full hostname, return the word upto the first dot.

Usage

From source file:com.alibaba.wasp.zookeeper.FQuorumPeer.java

License:Apache License

static void writeMyID(Configuration conf, Properties properties) throws IOException {
    long myId = -1;
    String myAddress = Strings//  ww  w  .j a v a 2 s  .c om
            .domainNamePointerToHostName(DNS.getDefaultHost(conf.get("wasp.zookeeper.dns.interface", "default"),
                    conf.get("wasp.zookeeper.dns.nameserver", "default")));

    List<String> ips = new ArrayList<String>();

    // Add what could be the best (configured) match
    ips.add(myAddress.contains(".") ? myAddress : StringUtils.simpleHostname(myAddress));

    // For all nics get all hostnames and IPs
    Enumeration<?> nics = NetworkInterface.getNetworkInterfaces();
    while (nics.hasMoreElements()) {
        Enumeration<?> rawAdrs = ((NetworkInterface) nics.nextElement()).getInetAddresses();
        while (rawAdrs.hasMoreElements()) {
            InetAddress inet = (InetAddress) rawAdrs.nextElement();
            ips.add(StringUtils.simpleHostname(inet.getHostName()));
            ips.add(inet.getHostAddress());
        }
    }

    for (Entry<Object, Object> entry : properties.entrySet()) {
        String key = entry.getKey().toString().trim();
        String value = entry.getValue().toString().trim();
        if (key.startsWith("server.")) {
            int dot = key.indexOf('.');
            long id = Long.parseLong(key.substring(dot + 1));
            String[] parts = value.split(":");
            String address = parts[0];
            if (addressIsLocalHost(address) || ips.contains(address)) {
                myId = id;
                break;
            }
        }
    }

    // Set the max session timeout from the provided client-side timeout
    properties.setProperty("maxSessionTimeout", conf.get("zookeeper.session.timeout", "180000"));

    if (myId == -1) {
        throw new IOException(
                "Could not find my address: " + myAddress + " in list of ZooKeeper quorum servers");
    }

    String dataDirStr = properties.get("dataDir").toString().trim();
    File dataDir = new File(dataDirStr);
    if (!dataDir.isDirectory()) {
        if (!dataDir.mkdirs()) {
            throw new IOException("Unable to create data dir " + dataDir);
        }
    }

    File myIdFile = new File(dataDir, "myid");
    PrintWriter w = new PrintWriter(myIdFile);
    w.println(myId);
    w.close();
}

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From source file:org.apache.hama.zookeeper.QuorumPeer.java

License:Apache License

private static void writeMyID(Properties properties) throws IOException {
    long myId = -1;

    Configuration conf = new HamaConfiguration();
    String myAddress = DNS.getDefaultHost(conf.get("hama.zookeeper.dns.interface", "default"),
            conf.get("hama.zookeeper.dns.nameserver", "default"));

    List<String> ips = new ArrayList<String>();

    // Add what could be the best (configured) match
    ips.add(myAddress.contains(".") ? myAddress : StringUtils.simpleHostname(myAddress));

    // For all nics get all hostnames and IPs
    Enumeration<?> nics = NetworkInterface.getNetworkInterfaces();
    while (nics.hasMoreElements()) {
        Enumeration<?> rawAdrs = ((NetworkInterface) nics.nextElement()).getInetAddresses();
        while (rawAdrs.hasMoreElements()) {
            InetAddress inet = (InetAddress) rawAdrs.nextElement();
            ips.add(StringUtils.simpleHostname(inet.getHostName()));
            ips.add(inet.getHostAddress());
        }/*w w  w  .j  a  v  a  2  s. co  m*/
    }

    for (Entry<Object, Object> entry : properties.entrySet()) {
        String key = entry.getKey().toString().trim();
        String value = entry.getValue().toString().trim();

        if (key.startsWith("server.")) {
            int dot = key.indexOf('.');
            long id = Long.parseLong(key.substring(dot + 1));
            String[] parts = value.split(":");
            String address = parts[0];
            if (addressIsLocalHost(address) || ips.contains(address)) {
                myId = id;
                break;
            }
        }
    }

    if (myId == -1) {
        throw new IOException(
                "Could not find my address: " + myAddress + " in list of ZooKeeper quorum servers");
    }

    String dataDirStr = properties.get("dataDir").toString().trim();
    File dataDir = new File(dataDirStr);
    if (!dataDir.isDirectory()) {
        if (!dataDir.mkdirs()) {
            throw new IOException("Unable to create data dir " + dataDir);
        }
    }

    File myIdFile = new File(dataDir, "myid");
    PrintWriter w = new PrintWriter(myIdFile);
    w.println(myId);
    w.close();
}

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From source file:org.trafodion.rest.zookeeper.ZkQuorumPeer.java

License:Apache License

static void writeMyID(Properties properties) throws IOException {
    long myId = -1;

    Configuration conf = RestConfiguration.create();
    String myAddress = Strings/*from ww w .  j  a v  a  2  s  .  co m*/
            .domainNamePointerToHostName(DNS.getDefaultHost(conf.get("rest.zookeeper.dns.interface", "default"),
                    conf.get("rest.zookeeper.dns.nameserver", "default")));

    List<String> ips = new ArrayList<String>();

    // Add what could be the best (configured) match
    ips.add(myAddress.contains(".") ? myAddress : StringUtils.simpleHostname(myAddress));

    // For all nics get all hostnames and IPs
    Enumeration<?> nics = NetworkInterface.getNetworkInterfaces();
    while (nics.hasMoreElements()) {
        Enumeration<?> rawAdrs = ((NetworkInterface) nics.nextElement()).getInetAddresses();
        while (rawAdrs.hasMoreElements()) {
            InetAddress inet = (InetAddress) rawAdrs.nextElement();
            ips.add(StringUtils.simpleHostname(inet.getHostName()));
            ips.add(inet.getHostAddress());
        }
    }

    for (Entry<Object, Object> entry : properties.entrySet()) {
        String key = entry.getKey().toString().trim();
        String value = entry.getValue().toString().trim();
        if (key.startsWith("server.")) {
            int dot = key.indexOf('.');
            long id = Long.parseLong(key.substring(dot + 1));
            String[] parts = value.split(":");
            String address = parts[0];
            if (addressIsLocalHost(address) || ips.contains(address)) {
                myId = id;
                break;
            }
        }
    }

    // Set the max session timeout from the provided client-side timeout
    properties.setProperty("maxSessionTimeout", conf.get("zookeeper.session.timeout", "180000"));

    if (myId == -1) {
        throw new IOException(
                "Could not find my address: " + myAddress + " in list of ZooKeeper quorum servers");
    }

    String dataDirStr = properties.get("dataDir").toString().trim();
    File dataDir = new File(dataDirStr);
    if (!dataDir.isDirectory()) {
        if (!dataDir.mkdirs()) {
            throw new IOException("Unable to create data dir " + dataDir);
        }
    }

    File myIdFile = new File(dataDir, "myid");
    PrintWriter w = new PrintWriter(myIdFile);
    w.println(myId);
    w.close();
}

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