/*
* 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.deltaspike.data.impl.handler;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Produces;
import java.util.Stack;
@ApplicationScoped
public class CdiQueryContextHolder
{
private final ThreadLocal<Stack<CdiQueryInvocationContext>> contextStack =
new ThreadLocal<Stack<CdiQueryInvocationContext>>();
public void set(CdiQueryInvocationContext context)
{
if (contextStack.get() == null)
{
contextStack.set(new Stack<CdiQueryInvocationContext>());
}
contextStack.get().push(context);
}
@Produces
public CdiQueryInvocationContext get()
{
if (contextStack.get() != null && !contextStack.get().isEmpty())
{
return contextStack.get().peek();
}
return null;
}
public void dispose()
{
if (contextStack.get() != null && !contextStack.get().isEmpty())
{
CdiQueryInvocationContext ctx = contextStack.get().pop();
ctx.cleanup();
}
if (contextStack.get() != null && contextStack.get().isEmpty())
{
contextStack.remove();
}
}
}