ContextAwareCallable.java

/**
 * Licensed to the Austrian Association for Software Tool Integration (AASTI)
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. The AASTI 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.openengsb.core.util;

import java.util.concurrent.Callable;

/**
 * wraps a {@link Callable} in a ContextAware one, to ensure the important ThreadLocals have the correct values.
 *
 */
public class ContextAwareCallable<ReturnType> extends ContextAware implements Callable<ReturnType> {
    private Callable<ReturnType> original;

    public ContextAwareCallable(Callable<ReturnType> original) {
        this.original = original;
    }

    @Override
    public ReturnType call() throws Exception {
        applyContext();
        return original.call();
    }
}