Package com.google.cloud.pubsublite.internal

Class CloseableMonitor

java.lang.Object

com.google.cloud.pubsublite.internal.CloseableMonitor

public class CloseableMonitor
extends Object

Wraps a Monitor with methods that can be used with try-with-resources.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	CloseableMonitor.Hold	This is meant for use in the try-with-resources pattern.

Field Summary

Fields

Modifier and Type	Field	Description
final com.google.common.util.concurrent.Monitor	monitor

Constructor Summary

Constructors

Constructor	Description
CloseableMonitor()

Method Summary

Modifier and Type	Method	Description
CloseableMonitor.Hold	enter()	try-with-resources wrapper for enter.
CloseableMonitor.Hold	enterWhenUninterruptibly(com.google.common.util.concurrent.Monitor.Guard condition)	try-with-resources wrapper for enterWhenUninterruptibly.

Methods inherited from class java.lang.Object

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

Field Details

monitor

public final com.google.common.util.concurrent.Monitor monitor

Constructor Details

CloseableMonitor

public CloseableMonitor()

Method Details

enterWhenUninterruptibly

public CloseableMonitor.Hold enterWhenUninterruptibly(com.google.common.util.concurrent.Monitor.Guard condition)

try-with-resources wrapper for enterWhenUninterruptibly. For example:

 final Monitor.Guard guard = new Monitor.Guard(monitor.monitor) {
     @Override
     public boolean isSatisfied() {
       assertThat(monitor.monitor.isOccupied()).isTrue();
       return state;
     }
 };

 try (CloseableMonitor.Hold h = monitor.enterWhenUninterruptibly(guard)) {
   // Do stuff
 }
 // Monitor is automatically released
 

enter

public CloseableMonitor.Hold enter()

try-with-resources wrapper for enter. For example...

 try (CloseableMonitor.Hold h = monitor.enter()) {
   // Do stuff
 }
 // Monitor is automatically released