gradle-master/subprojects/core/src/main/java/org/gradle/process/internal/ExecHandleShutdownHookAction.java
/*
 * Copyright 2009 the original author or authors.
 *
 * 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 org.gradle.process.internal;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Terminates the external running 'sub' process when the Gradle process is being cancelled.
 */
public class ExecHandleShutdownHookAction implements Runnable {

    private static final Logger LOGGER = LoggerFactory.getLogger(ExecHandleShutdownHookAction.class);
    private final ExecHandle execHandle;

    public ExecHandleShutdownHookAction(ExecHandle execHandle) {
        if (execHandle == null) {
            throw new IllegalArgumentException("execHandle is null!");
        }

        this.execHandle = execHandle;
    }

    @Override
    public void run() {
        try {
            execHandle.abort();
        } catch (Throwable t) {
            LOGGER.error("failed to abort " + execHandle, t);
        }
    }
}
