Example usage for org.apache.hadoop.hdfs XAttrHelper getFirstXAttrValue

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs XAttrHelper getFirstXAttrValue.

Prototype

public static byte[] getFirstXAttrValue(List<XAttr> xAttrs) 

Source Link

Document

Get value of first xattr from XAttr list

Usage

From source file:com.mellanox.r4h.DFSClient.java

License:Apache License

public byte[] getXAttr(String src, String name) throws IOException {
    checkOpen();//from   ww  w.jav  a  2  s .  co  m
    TraceScope scope = getPathTraceScope("getXAttr", src);
    try {
        final List<XAttr> xAttrs = XAttrHelper.buildXAttrAsList(name);
        final List<XAttr> result = namenode.getXAttrs(src, xAttrs);
        return XAttrHelper.getFirstXAttrValue(result);
    } catch (RemoteException re) {
        throw re.unwrapRemoteException(AccessControlException.class, FileNotFoundException.class,
                UnresolvedPathException.class);
    } finally {
        scope.close();
    }
}

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