Class AbstractFourLetterCommand
- java.lang.Object
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- org.apache.zookeeper.server.command.AbstractFourLetterCommand
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- Direct Known Subclasses:
CnxnStatResetCommand,ConfCommand,ConsCommand,DigestCommand,DirsCommand,DumpCommand,EnvCommand,IsroCommand,MonitorCommand,NopCommand,RuokCommand,SetTraceMaskCommand,StatCommand,StatResetCommand,TraceMaskCommand,WatchCommand
public abstract class AbstractFourLetterCommand extends Object
Set of threads for command ports. All the 4 letter commands are run via a thread. Each class maps to a corresponding 4 letter command. CommandThread is the abstract class from which all the others inherit.
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Field Summary
Fields Modifier and Type Field Description protected ServerCnxnFactoryfactoryprotected PrintWriterpwprotected ServerCnxnserverCnxnstatic StringZK_NOT_SERVINGprotected ZooKeeperServerzkServer
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Constructor Summary
Constructors Constructor Description AbstractFourLetterCommand(PrintWriter pw, ServerCnxn serverCnxn)
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract voidcommandRun()voidrun()voidsetFactory(ServerCnxnFactory factory)voidsetZkServer(ZooKeeperServer zkServer)voidstart()
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Field Detail
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ZK_NOT_SERVING
public static final String ZK_NOT_SERVING
- See Also:
- Constant Field Values
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pw
protected PrintWriter pw
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serverCnxn
protected ServerCnxn serverCnxn
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zkServer
protected ZooKeeperServer zkServer
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factory
protected ServerCnxnFactory factory
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Constructor Detail
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AbstractFourLetterCommand
public AbstractFourLetterCommand(PrintWriter pw, ServerCnxn serverCnxn)
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Method Detail
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start
public void start()
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run
public void run()
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setZkServer
public void setZkServer(ZooKeeperServer zkServer)
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setFactory
public void setFactory(ServerCnxnFactory factory)
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commandRun
public abstract void commandRun() throws IOException- Throws:
IOException
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