com.gemstone.gemfire.internal.cache

Class Status

java.lang.Object

com.gemstone.gemfire.internal.cache.Status

public class Status
extends java.lang.Object

A class that represents the status of a cache server. Instances of this class are serialized to a status file on disk.

See Also:

SHUTDOWN, STARTING, RUNNING, SHUTDOWN_PENDING, WAITING

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	dsMsg
java.lang.String	exceptionStr
java.lang.String	msg
int	pid
static int	RUNNING
static int	SHUTDOWN
static int	SHUTDOWN_PENDING
static int	STANDBY
static int	STARTING
int	state
static int	WAITING

Method Summary

Modifier and Type	Method and Description
static Status	create(java.lang.String baseName, int state, int pid, java.nio.file.Path statusFile)
static Status	create(java.lang.String baseName, int state, int pid, java.lang.String msg, java.lang.Throwable t, java.nio.file.Path statusFile)
static void	delete(java.nio.file.Path statusFile) Removes the status file.
static void	delete(java.lang.String workingDir, java.lang.String statusFileName) Removes the status file.
static boolean	isExistingProcess(int pid)
static Status	read(java.lang.String baseName, java.nio.file.Path statusFile) Reads a cache server's status from a file in its working directory.
java.lang.String	shortStatus()
static Status	spinRead(java.lang.String baseName, java.nio.file.Path statusFile) Reads a cache server's status.
java.lang.String	toString()
void	write() Sets the status of a cache server by serializing a Status instance to a file in the server's working directory.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

SHUTDOWN

public static final int SHUTDOWN

See Also:

Constant Field Values

STARTING

public static final int STARTING

See Also:

Constant Field Values

RUNNING

public static final int RUNNING

See Also:

Constant Field Values

SHUTDOWN_PENDING

public static final int SHUTDOWN_PENDING

See Also:

Constant Field Values

WAITING

public static final int WAITING

See Also:

Constant Field Values

STANDBY

public static final int STANDBY

See Also:

Constant Field Values

state

public int state

pid

public int pid

msg

public java.lang.String msg

dsMsg

public java.lang.String dsMsg

exceptionStr

public java.lang.String exceptionStr

Method Detail

create

public static Status create(java.lang.String baseName,
                            int state,
                            int pid,
                            java.nio.file.Path statusFile)

create

public static Status create(java.lang.String baseName,
                            int state,
                            int pid,
                            java.lang.String msg,
                            java.lang.Throwable t,
                            java.nio.file.Path statusFile)

write

public void write()
           throws java.io.IOException

Sets the status of a cache server by serializing a Status instance to a file in the server's working directory.

Throws:

java.io.IOException

read

public static Status read(java.lang.String baseName,
                          java.nio.file.Path statusFile)
                   throws java.lang.InterruptedException,
                          java.io.IOException

Reads a cache server's status from a file in its working directory.

Throws:

java.lang.InterruptedException

java.io.IOException

spinRead

public static Status spinRead(java.lang.String baseName,
                              java.nio.file.Path statusFile)

Reads a cache server's status. If the status file cannot be read because of I/O problems, it will try again.

delete

public static void delete(java.nio.file.Path statusFile)
                   throws java.io.IOException

Removes the status file.

Throws:

java.io.IOException

delete

public static void delete(java.lang.String workingDir,
                          java.lang.String statusFileName)
                   throws java.io.IOException

Removes the status file.

Throws:

java.io.IOException

isExistingProcess

public static boolean isExistingProcess(int pid)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

shortStatus

public java.lang.String shortStatus()