gradle-master/subprojects/launcher/src/main/java/org/gradle/launcher/daemon/server/health/gc/GarbageCollectionInfo.java
/*
 * Copyright 2016 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.launcher.daemon.server.health.gc;

import java.lang.management.GarbageCollectorMXBean;
import java.lang.management.ManagementFactory;

public class GarbageCollectionInfo {
    /**
     * Approx. time spent in gc. See {@link GarbageCollectorMXBean}
     */
    public long getCollectionTime() {
        long garbageCollectionTime = 0;
        for (GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
            long time = gc.getCollectionTime();
            if (time >= 0) {
                garbageCollectionTime += time;
            }
        }
        return garbageCollectionTime;
    }
}
