Java tutorial
/* * Copyright 2009-2017 Aconex * * 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 io.pcp.parfait; import com.google.common.base.Predicate; import com.google.common.collect.Iterators; import java.util.Collection; import java.util.List; import static com.google.common.collect.ImmutableList.copyOf; public class CompositeMonitoringView implements MonitoringView { private final List<MonitoringView> monitoringViews; public CompositeMonitoringView(MonitoringView... monitoringViews) { this.monitoringViews = copyOf(monitoringViews); } @Override public void startMonitoring(Collection<Monitorable<?>> monitorables) { for (MonitoringView monitoringView : monitoringViews) { monitoringView.startMonitoring(monitorables); } } @Override public void stopMonitoring(Collection<Monitorable<?>> monitorables) { for (MonitoringView monitoringView : monitoringViews) { monitoringView.stopMonitoring(monitorables); } } @Override /** * For a Composite view, isRunning() is true if any of the underlying views are still running */ public boolean isRunning() { return Iterators.any(monitoringViews.iterator(), new Predicate<MonitoringView>() { @Override public boolean apply(MonitoringView mv) { return mv.isRunning(); } }); } }