How to use

getEnum

method

in

org.apache.hadoop.hdfs.server.common.HdfsServerConstants$StartupOption

static StartupOption getStartupOption(Configuration conf) {
 String value = conf.get(DFS_DATANODE_STARTUP_KEY,
             StartupOption.REGULAR.toString());
 return StartupOption.getEnum(value);
}

static StartupOption getStartupOption(Configuration conf) {
 String value = conf.get(DFS_DATANODE_STARTUP_KEY,
             StartupOption.REGULAR.toString());
 return StartupOption.getEnum(value);
}

static StartupOption getStartupOption(Configuration conf) {
 String value = conf.get(DFS_DATANODE_STARTUP_KEY,
             StartupOption.REGULAR.toString());
 return StartupOption.getEnum(value);
}

/**
 * Verify that parsing a StartupOption string gives the expected results.
 * If a RollingUpgradeStartupOption is specified than it is also checked.
 *
 * @param value
 * @param expectedOption
 * @param expectedRollupOption optional, may be null.
 */
private static void verifyStartupOptionResult(String value,
  StartupOption expectedOption,
  RollingUpgradeStartupOption expectedRollupOption) {
 StartupOption option = StartupOption.getEnum(value);
 assertEquals(expectedOption, option);
 if (expectedRollupOption != null) {
  assertEquals(expectedRollupOption, option.getRollingUpgradeStartupOption());
 }
}