/**
* 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.curator.framework.imps;
import org.apache.curator.framework.api.BackgroundCallback;
import org.apache.curator.framework.api.CuratorEvent;
import org.apache.curator.framework.CuratorFramework;
import java.util.concurrent.Executor;
class Backgrounding
{
private final boolean inBackground;
private final Object context;
private final BackgroundCallback callback;
Backgrounding(Object context)
{
this.inBackground = true;
this.context = context;
this.callback = null;
}
Backgrounding(BackgroundCallback callback)
{
this.inBackground = true;
this.context = null;
this.callback = callback;
}
Backgrounding(boolean inBackground)
{
this.inBackground = inBackground;
this.context = null;
this.callback = null;
}
Backgrounding(BackgroundCallback callback, Object context)
{
this.inBackground = true;
this.context = context;
this.callback = callback;
}
Backgrounding(CuratorFrameworkImpl client, BackgroundCallback callback, Object context, Executor executor)
{
this(wrapCallback(client, callback, executor), context);
}
Backgrounding(CuratorFrameworkImpl client, BackgroundCallback callback, Executor executor)
{
this(wrapCallback(client, callback, executor));
}
Backgrounding()
{
inBackground = false;
context = null;
this.callback = null;
}
boolean inBackground()
{
return inBackground;
}
Object getContext()
{
return context;
}
BackgroundCallback getCallback()
{
return callback;
}
private static BackgroundCallback wrapCallback(final CuratorFrameworkImpl client, final BackgroundCallback callback, final Executor executor)
{
return new BackgroundCallback()
{
@Override
public void processResult(CuratorFramework dummy, final CuratorEvent event) throws Exception
{
executor.execute
(
new Runnable()
{
@Override
public void run()
{
try
{
callback.processResult(client, event);
}
catch ( Exception e )
{
client.logError("Background operation result handling threw exception", e);
}
}
}
);
}
};
}
}