| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.maven.shared.io.scan; |
| |
| import java.io.File; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.maven.shared.io.scan.mapping.SourceMapping; |
| |
| /** |
| * @author jdcasey |
| * @version $Id$ |
| */ |
| public class StaleResourceScanner extends AbstractResourceInclusionScanner { |
| private final long lastUpdatedWithinMsecs; |
| |
| private final Set<String> sourceIncludes; |
| |
| private final Set<String> sourceExcludes; |
| |
| // ---------------------------------------------------------------------- |
| // |
| // ---------------------------------------------------------------------- |
| |
| /** |
| * Create instance with defaults. |
| */ |
| public StaleResourceScanner() { |
| this(0, Collections.singleton("**/*"), Collections.<String>emptySet()); |
| } |
| |
| /** |
| * @param lastUpdatedWithinMsecs last update within milli seconds. |
| */ |
| public StaleResourceScanner(long lastUpdatedWithinMsecs) { |
| this(lastUpdatedWithinMsecs, Collections.singleton("**/*"), Collections.<String>emptySet()); |
| } |
| |
| /** |
| * @param lastUpdatedWithinMsecs last update within milli seconds. |
| * @param sourceIncludes source includes. |
| * @param sourceExcludes source excludes. |
| */ |
| public StaleResourceScanner(long lastUpdatedWithinMsecs, Set<String> sourceIncludes, Set<String> sourceExcludes) { |
| this.lastUpdatedWithinMsecs = lastUpdatedWithinMsecs; |
| |
| this.sourceIncludes = sourceIncludes; |
| |
| this.sourceExcludes = sourceExcludes; |
| } |
| |
| // ---------------------------------------------------------------------- |
| // SourceInclusionScanner Implementation |
| // ---------------------------------------------------------------------- |
| |
| /** {@inheritDoc} */ |
| public Set<File> getIncludedSources(File sourceDir, File targetDir) throws InclusionScanException { |
| List<SourceMapping> srcMappings = getSourceMappings(); |
| |
| if (srcMappings.isEmpty()) { |
| return Collections.<File>emptySet(); |
| } |
| |
| String[] potentialIncludes = scanForSources(sourceDir, sourceIncludes, sourceExcludes); |
| |
| Set<File> matchingSources = new HashSet<File>(); |
| |
| for (int i = 0; i < potentialIncludes.length; i++) { |
| String path = potentialIncludes[i]; |
| |
| File sourceFile = new File(sourceDir, path); |
| |
| staleSourceFileTesting: |
| for (SourceMapping mapping : srcMappings) { |
| Set<File> targetFiles = mapping.getTargetFiles(targetDir, path); |
| |
| // never include files that don't have corresponding target mappings. |
| // the targets don't have to exist on the filesystem, but the |
| // mappers must tell us to look for them. |
| for (File targetFile : targetFiles) { |
| if (!targetFile.exists() |
| || (targetFile.lastModified() + lastUpdatedWithinMsecs < sourceFile.lastModified())) { |
| matchingSources.add(sourceFile); |
| break staleSourceFileTesting; |
| } |
| } |
| } |
| } |
| |
| return matchingSources; |
| } |
| } |