Replaced the Disposer

src/com/github/rjeschke/neetutils/dispose/Disposer.java

-/*
- * Copyright (C) 2012 René Jeschke <rene_jeschke@yahoo.de>
- *
- * Licensed 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 com.github.rjeschke.neetutils.dispose;
-
-import java.lang.ref.ReferenceQueue;
-import java.lang.ref.WeakReference;
-
-import com.github.rjeschke.neetutils.dispose.ReferenceList.Node;
-
-/**
- * 
- * @author René Jeschke (rene_jeschke@yahoo.de)
- * 
- */
-public class Disposer extends WeakReference<Disposable>
-{
-  private final Disposable disposable;
-  private final Node<Disposer> disposer;
-  private volatile boolean disposed = false;
-  final static ReferenceQueue<Disposable> refQueue;
-  final static ReferenceList<Disposer> disposers;
-
-  static
-  {
-    refQueue = new ReferenceQueue<Disposable>();
-    disposers = new ReferenceList<Disposer>();
-
-    final Thread thread = new Thread(new Cleaner());
-    thread.setName("neetutils-Disposer");
-    thread.setDaemon(true);
-    thread.start();
-  }
-
-  public Disposer(final Disposable referent, final Disposable disposable)
-  {
-    super(referent, refQueue);
-    this.disposable = disposable;
-    synchronized (disposers)
-    {
-      this.disposer = disposers.add(this);
-    }
-  }
-
-  public void dispose()
-  {
-    if (!this.disposed)
-    {
-      synchronized (disposers)
-      {
-        disposers.remove(this.disposer);
-      }
-      this.disposed = true;
-      this.disposable.dispose();
-    }
-  }
-
-  public boolean isDisposed()
-  {
-    return this.disposed;
-  }
-
-  private static final class Cleaner implements Runnable
-  {
-    public Cleaner()
-    {
-      // empty
-    }
-
-    @Override
-    public void run()
-    {
-      final ReferenceQueue<Disposable> refQueue = Disposer.refQueue;
-      for (;;)
-      {
-        try
-        {
-          ((Disposer)refQueue.remove()).dispose();
-        }
-        catch (final Throwable t)
-        {
-          //
-        }
-      }
-    }
-  }
-}