Java Code Examples for org.apache.hadoop.conf.Configuration.getPropertySources()

The following are Jave code examples for showing how to use getPropertySources() of the org.apache.hadoop.conf.Configuration class. You can vote up the examples you like. Your votes will be used in our system to get more good examples.
Example 1
Project: hadoop   File:   Source Code and License Vote up 5 votes
 * Get default file system URI for the cluster (used to ensure consistency
 * of history done/staging locations) over different context
 * @return Default file context
private static FileContext getDefaultFileContext() {
  // If FS_DEFAULT_NAME_KEY was set solely by core-default.xml then we ignore
  // ignore it. This prevents defaulting history paths to file system specified
  // by core-default.xml which would not make sense in any case. For a test
  // case to exploit this functionality it should create core-site.xml
  FileContext fc = null;
  Configuration defaultConf = new Configuration();
  String[] sources;
  sources = defaultConf.getPropertySources(
  if (sources != null &&
      (!Arrays.asList(sources).contains("core-default.xml") ||
      sources.length > 1)) {
    try {
      fc = FileContext.getFileContext(defaultConf);"Default file system [" +
                fc.getDefaultFileSystem().getUri() + "]");
    } catch (UnsupportedFileSystemException e) {
      LOG.error("Unable to create default file context [" +
          defaultConf.get(CommonConfigurationKeysPublic.FS_DEFAULT_NAME_KEY) +
  else {"Default file system is set solely " +
        "by core-default.xml therefore -  ignoring");

  return fc;