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

Introduction

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

Prototype

public static String uriToString(URI[] uris) 

Source Link

Usage

From source file:common.DataNode.java

License:Apache License

/** Instantiate a single datanode object. This must be run by invoking
 *  {@link DataNode#runDatanodeDaemon(DataNode)} subsequently. 
 */// w  ww .  jav  a  2s  .  c  o  m
public static DataNode instantiateDataNode(String args[], Configuration conf) throws IOException {
    if (conf == null)
        conf = new HdfsConfiguration();

    if (args != null) {
        // parse generic hadoop options
        GenericOptionsParser hParser = new GenericOptionsParser(conf, args);
        args = hParser.getRemainingArgs();
    }

    if (!parseArguments(args, conf)) {
        printUsage();
        return null;
    }
    if (conf.get("dfs.network.script") != null) {
        LOG.error("This configuration for rack identification is not supported"
                + " anymore. RackID resolution is handled by the NameNode.");
        System.exit(-1);
    }
    Collection<URI> dataDirs = getStorageDirs(conf);
    dnThreadName = "DataNode: [" + StringUtils.uriToString(dataDirs.toArray(new URI[0])) + "]";
    return makeInstance(dataDirs, conf);
}

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