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HDFS-11238. Fix checkstyle warnings in NameNode#createNameNode. Contributed by Ethan Li.

This commit is contained in:
Akira Ajisaka 2017-02-15 16:53:50 +09:00
parent 1e11080b78
commit 8acb376c9c
1 changed files with 46 additions and 55 deletions
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101
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
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@ -1579,62 +1579,53 @@ public class NameNode extends ReconfigurableBase implements
}
setStartupOption(conf, startOpt);
boolean aborted = false;
switch (startOpt) {
case FORMAT: {
boolean aborted = format(conf, startOpt.getForceFormat(),
startOpt.getInteractiveFormat());
terminate(aborted ? 1 : 0);
return null; // avoid javac warning
}
case GENCLUSTERID: {
System.err.println("Generating new cluster id:");
System.out.println(NNStorage.newClusterID());
terminate(0);
return null;
}
case ROLLBACK: {
boolean aborted = doRollback(conf, true);
terminate(aborted ? 1 : 0);
return null; // avoid warning
}
case BOOTSTRAPSTANDBY: {
String toolArgs[] = Arrays.copyOfRange(argv, 1, argv.length);
int rc = BootstrapStandby.run(toolArgs, conf);
terminate(rc);
return null; // avoid warning
}
case INITIALIZESHAREDEDITS: {
boolean aborted = initializeSharedEdits(conf,
startOpt.getForceFormat(),
startOpt.getInteractiveFormat());
terminate(aborted ? 1 : 0);
return null; // avoid warning
}
case BACKUP:
case CHECKPOINT: {
NamenodeRole role = startOpt.toNodeRole();
DefaultMetricsSystem.initialize(role.toString().replace(" ", ""));
return new BackupNode(conf, role);
}
case RECOVER: {
NameNode.doRecovery(startOpt, conf);
return null;
}
case METADATAVERSION: {
printMetadataVersion(conf);
terminate(0);
return null; // avoid javac warning
}
case UPGRADEONLY: {
DefaultMetricsSystem.initialize("NameNode");
new NameNode(conf);
terminate(0);
return null;
}
default: {
DefaultMetricsSystem.initialize("NameNode");
return new NameNode(conf);
}
case FORMAT:
aborted = format(conf, startOpt.getForceFormat(),
startOpt.getInteractiveFormat());
terminate(aborted ? 1 : 0);
return null; // avoid javac warning
case GENCLUSTERID:
System.err.println("Generating new cluster id:");
System.out.println(NNStorage.newClusterID());
terminate(0);
return null;
case ROLLBACK:
aborted = doRollback(conf, true);
terminate(aborted ? 1 : 0);
return null; // avoid warning
case BOOTSTRAPSTANDBY:
String[] toolArgs = Arrays.copyOfRange(argv, 1, argv.length);
int rc = BootstrapStandby.run(toolArgs, conf);
terminate(rc);
return null; // avoid warning
case INITIALIZESHAREDEDITS:
aborted = initializeSharedEdits(conf,
startOpt.getForceFormat(),
startOpt.getInteractiveFormat());
terminate(aborted ? 1 : 0);
return null; // avoid warning
case BACKUP:
case CHECKPOINT:
NamenodeRole role = startOpt.toNodeRole();
DefaultMetricsSystem.initialize(role.toString().replace(" ", ""));
return new BackupNode(conf, role);
case RECOVER:
NameNode.doRecovery(startOpt, conf);
return null;
case METADATAVERSION:
printMetadataVersion(conf);
terminate(0);
return null; // avoid javac warning
case UPGRADEONLY:
DefaultMetricsSystem.initialize("NameNode");
new NameNode(conf);
terminate(0);
return null;
default:
DefaultMetricsSystem.initialize("NameNode");
return new NameNode(conf);
}
}