| /******************************************************************************* |
| * Copyright (c) 2012 EclipseSource Muenchen GmbH. |
| * |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| ******************************************************************************/ |
| package org.eclipse.emf.emfstore.fuzzy.emf.diff; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.emf.emfstore.fuzzy.emf.FuzzyUtil; |
| import org.eclipse.emf.emfstore.fuzzy.emf.config.ConfigFactory; |
| import org.eclipse.emf.emfstore.fuzzy.emf.config.DiffReport; |
| import org.eclipse.emf.emfstore.fuzzy.emf.config.TestConfig; |
| import org.eclipse.emf.emfstore.fuzzy.emf.config.TestDiff; |
| import org.eclipse.emf.emfstore.fuzzy.emf.config.TestResult; |
| import org.eclipse.emf.emfstore.fuzzy.emf.config.TestRun; |
| |
| /** |
| * Generates {@link TestDiff}s out of {@link TestRun}. |
| * |
| * @author Julian Sommerfeldt |
| * |
| */ |
| public class DiffGenerator { |
| |
| private DiffReport diffReport; |
| |
| private Resource diffResource; |
| |
| /** |
| * A {@link DiffGenerator} with the standard diff file {@link FuzzyUtil#DIFF_FILE}. |
| */ |
| public DiffGenerator() { |
| this(FuzzyUtil.DIFF_FILE); |
| } |
| |
| /** |
| * A {@link DiffGenerator} with using the diffPath. |
| * |
| * @param diffPath The path to the Diff file. |
| */ |
| public DiffGenerator(String diffPath) { |
| this(FuzzyUtil.createResource(diffPath)); |
| } |
| |
| /** |
| * A {@link DiffGenerator} using the diffResource. |
| * |
| * @param diffResource The resource to use for the diff. |
| */ |
| public DiffGenerator(Resource diffResource) { |
| this.diffResource = diffResource; |
| |
| if (FuzzyUtil.resourceExists(diffResource)) { |
| try { |
| diffResource.load(null); |
| } catch (IOException e) { |
| throw new RuntimeException("Could not load resource: " + diffResource.getURI(), e); |
| } |
| } |
| |
| diffReport = getDiffReport(diffResource); |
| } |
| |
| /** |
| * Create a diff from two {@link TestRun}s. |
| * |
| * @param firstRun The first {@link TestRun}. |
| * @param secondRun The second {@link TestRun}. |
| * @throws IOException If there is a saving/loading failure with resources. |
| */ |
| public void createDiff(TestRun firstRun, TestRun secondRun) throws IOException { |
| |
| TestConfig config = firstRun.getConfig(); |
| |
| // check if it already contains the config |
| boolean containsConfig = false; |
| // create map containing existing diffs |
| // identified through testname + seedcount (e.g. test1) |
| Map<String, TestDiff> existingDiffs = new HashMap<String, TestDiff>(); |
| List<TestDiff> diffs = diffReport.getDiffs(); |
| for (TestDiff diff : diffs) { |
| |
| // add existing diffs |
| TestResult result = FuzzyUtil.getValidTestResult(diff); |
| existingDiffs.put(getResultIdentifier(result), diff); |
| |
| // check for configs |
| if ((!containsConfig) && (diff.getConfig().getId().equals(config.getId()))) { |
| containsConfig = true; |
| config = diff.getConfig(); |
| } |
| } |
| |
| // if the resource does not contain the config already add it |
| if (!containsConfig) { |
| diffResource.getContents().add(config); |
| } |
| |
| // create diffs for the two testruns |
| checkForDiffs(firstRun.getResults(), secondRun.getResults(), config, existingDiffs); |
| checkForDiffs(secondRun.getResults(), firstRun.getResults(), config, existingDiffs); |
| |
| diffResource.getContents().add(diffReport); |
| diffResource.save(null); |
| } |
| |
| private void checkForDiffs(List<TestResult> firstResults, List<TestResult> secondResults, TestConfig config, |
| Map<String, TestDiff> existingDiffs) { |
| EList<TestDiff> diffs = diffReport.getDiffs(); |
| for (TestResult result : new ArrayList<TestResult>(firstResults)) { |
| TestResult corrResult = getCorrespondingTestResult(result, secondResults); |
| |
| TestDiff diff = getChangedTestDiff(result, corrResult); |
| if (diff != null) { |
| diff.setConfig(config); |
| |
| // remove diff if it already contains it |
| diffs.remove(existingDiffs.get(getResultIdentifier(result))); |
| diffs.add(diff); |
| } |
| } |
| } |
| |
| private static String getResultIdentifier(TestResult result) { |
| return result.getTestName() + result.getSeedCount(); |
| } |
| |
| private static TestDiff getChangedTestDiff(TestResult fRes, TestResult sRes) { |
| boolean changed = false; |
| |
| // check if a state switch occured |
| // TODO test state switches |
| if (fRes == null || sRes == null) { |
| changed = true; |
| } else if (changed(fRes.getFailure(), sRes.getFailure())) { |
| changed = true; |
| } else if (changed(fRes.getError(), sRes.getError())) { |
| changed = true; |
| } else if (fRes.getFailure() != null && sRes.getError() != null) { |
| changed = true; |
| } else if (fRes.getError() != null && sRes.getFailure() != null) { |
| changed = true; |
| } |
| |
| // if it changed, create a new TestDiff |
| if (changed) { |
| return createTestDiff(fRes, sRes); |
| } |
| |
| return null; |
| } |
| |
| private static boolean changed(Object o1, Object o2) { |
| if (o1 == null && o2 != null) { |
| return true; |
| } |
| if (o1 != null && o2 == null) { |
| return true; |
| } |
| return false; |
| } |
| |
| private static TestDiff createTestDiff(TestResult fRes, TestResult sRes) { |
| TestDiff diff = ConfigFactory.eINSTANCE.createTestDiff(); |
| diff.setLastUpdate(new Date(System.currentTimeMillis())); |
| diff.setOldResult(fRes); |
| diff.setNewResult(sRes); |
| return diff; |
| } |
| |
| private static TestResult getCorrespondingTestResult(TestResult result, List<TestResult> results) { |
| for (TestResult res : results) { |
| if (res.getSeedCount() == result.getSeedCount() && res.getTestName().equals(result.getTestName())) { |
| return res; |
| } |
| } |
| return null; |
| } |
| |
| private static DiffReport getDiffReport(Resource resource) { |
| for (EObject obj : resource.getContents()) { |
| if (obj instanceof DiffReport) { |
| return (DiffReport) obj; |
| } |
| } |
| return ConfigFactory.eINSTANCE.createDiffReport(); |
| } |
| } |