Java tutorial
/* * Copyright 2014 Shazam Entertainment Limited * * 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.shazam.fork.summary; import com.google.common.base.Function; import org.apache.commons.lang3.BooleanUtils; import java.util.Collection; import java.util.List; import javax.annotation.Nullable; import static com.google.common.collect.Collections2.transform; import static com.shazam.fork.summary.ResultStatus.PASS; public class OutcomeAggregator { public boolean aggregate(Summary summary) { if (summary == null || summary.getPoolSummaries().isEmpty()) { return false; } List<PoolSummary> poolSummaries = summary.getPoolSummaries(); Collection<Boolean> poolOutcomes = transform(poolSummaries, toPoolOutcome()); return and(poolOutcomes); } public static Function<? super PoolSummary, Boolean> toPoolOutcome() { return new Function<PoolSummary, Boolean>() { @Override @Nullable public Boolean apply(@Nullable PoolSummary input) { final Collection<TestResult> testResults = input.getTestResults(); final Collection<Boolean> testOutcomes = transform(testResults, toTestOutcome()); return testOutcomes.size() > 0 && and(testOutcomes); } }; } private static Function<TestResult, Boolean> toTestOutcome() { return new Function<TestResult, Boolean>() { @Override @Nullable public Boolean apply(@Nullable TestResult input) { return PASS.equals(input.getResultStatus()); } }; } private static Boolean and(final Collection<Boolean> booleans) { return BooleanUtils.and(booleans.toArray(new Boolean[booleans.size()])); } }