athenz.shade.zts.org.glassfish.hk2.utilities.general.ThreadSpecificObject Maven / Gradle / Ivy
/*
* Copyright (c) 2015, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package athenz.shade.zts.athenz.shade.zts.org.glassfish.hk2.utilities.general;
/**
* This ties the given object with the thread upon
* which this object is created
*
* This class can be used as the key in a hashSet if the
* incoming object can be used as the key in a hashSet
* @author jwells
*
*/
public class ThreadSpecificObject {
private final T incoming;
private final long tid;
private final int hash;
public ThreadSpecificObject(T incoming) {
this.incoming = incoming;
this.tid = Thread.currentThread().getId();
int hash = (incoming == null) ? 0 : incoming.hashCode();
hash ^= Long.valueOf(tid).hashCode();
this.hash = hash;
}
/**
* Gets the thread on which this object was created
* @return The thread on which this object was created
*/
public long getThreadIdentifier() {
return tid;
}
/**
* Gets the incoming object bound to the thread id
* @return The incoming object bound to the thread id
*/
public T getIncomingObject() {
return incoming;
}
@Override
public int hashCode() {
return hash;
}
@Override
public boolean equals(Object o) {
if (o == null) return false;
if (!(o instanceof ThreadSpecificObject)) return false;
ThreadSpecificObject other = (ThreadSpecificObject) o;
if (tid != other.tid) return false;
return GeneralUtilities.safeEquals(incoming, other.incoming);
}
}