Java tutorial
/** * 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 com.seyren.core.service.live; import java.util.Iterator; import java.util.List; import java.util.Set; import com.google.common.base.Objects; import com.google.common.base.Predicate; import com.google.common.collect.Iterables; import com.seyren.core.domain.Check; import com.seyren.core.service.schedule.CheckRunner; import com.seyren.core.service.schedule.CheckRunnerFactory; import com.seyren.core.store.ChecksStore; public class MetricsTask implements Runnable { private Set<Metric> metrics; private ChecksStore checksStore; private CheckRunnerFactory checkRunnerFactory; public MetricsTask(Set<Metric> metrics, ChecksStore checksStore, CheckRunnerFactory checkRunnerFactory) { this.metrics = metrics; this.checksStore = checksStore; this.checkRunnerFactory = checkRunnerFactory; } @Override public void run() { final List<Check> checks = checksStore.getChecks(true, true).getValues(); for (final Check check : checks) { Iterator<Metric> metricByName = Iterables.filter(metrics, new FindByName(check.getName())).iterator(); if (metricByName.hasNext()) { Metric found = metricByName.next(); CheckRunner runner = checkRunnerFactory.create(check, found.getValue()); runner.run(); } } } private static class FindByName implements Predicate<Metric> { private String name; private FindByName(String name) { this.name = name; } @Override public boolean apply(Metric metric) { return Objects.equal(metric.getName(), name); } } }