/*
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional information regarding
* copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License. You may obtain a
* copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package org.apache.geode.distributed.internal.deadlock;
import java.io.Serializable;
import java.lang.management.LockInfo;
import java.lang.management.MonitorInfo;
import org.apache.geode.internal.concurrent.LI;
/**
* This class is serializable version of the java 1.6 lock info class. It also holds a locality
* field to identify the VM where the lock is held.
*
*
*/
class LocalLockInfo implements Serializable {
private static final long serialVersionUID = 1L;
private final Serializable locatility;
private final LI info;
public LocalLockInfo(Serializable locatility, LockInfo sync) {
super();
this.locatility = locatility;
// LockInfo and Monitor info aren't serializable, so copy the information from
// them. For backwards compatibility, use the LI class which is used
// in older versions of gemfire.
if (sync instanceof MonitorInfo) {
this.info = new LI(sync.getClassName(), sync.getIdentityHashCode(),
((MonitorInfo) sync).getLockedStackFrame());
} else {
this.info = new LI(sync.getClassName(), sync.getIdentityHashCode());
}
}
public Serializable getLocality() {
return locatility;
}
public LI getInfo() {
return info;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((info == null) ? 0 : info.getClassName().hashCode());
result = prime * result + ((info == null) ? 0 : info.getIdentityHashCode());
result = prime * result + ((locatility == null) ? 0 : locatility.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof LocalLockInfo))
return false;
LocalLockInfo other = (LocalLockInfo) obj;
if (info == null) {
if (other.info != null)
return false;
} else if (!info.getClassName().equals(other.info.getClassName())) {
return false;
} else if (info.getIdentityHashCode() != other.info.getIdentityHashCode()) {
return false;
}
if (locatility == null) {
if (other.locatility != null)
return false;
} else if (!locatility.equals(other.locatility))
return false;
return true;
}
@Override
public String toString() {
return locatility + ":" + info;
}
}