| /** |
| * 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.camel.core.xml; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.apache.camel.spi.PackageScanFilter; |
| import org.apache.camel.util.AntPathMatcher; |
| |
| /** |
| * {@link PatternBasedPackageScanFilter} uses an underlying |
| * {@link AntPathMatcher} to filter scanned files according to include and |
| * exclude patterns. |
| * |
| * @see AntPathMatcher |
| */ |
| public class PatternBasedPackageScanFilter implements PackageScanFilter { |
| private final AntPathMatcher matcher = new AntPathMatcher(); |
| |
| private List<String> excludePatterns; |
| private List<String> includePatterns; |
| |
| /** |
| * add and exclude pattern to the filter. Classes matching this pattern will |
| * not match the filter |
| */ |
| public void addExcludePattern(String excludePattern) { |
| if (excludePatterns == null) { |
| excludePatterns = new ArrayList<String>(); |
| } |
| excludePatterns.add(excludePattern); |
| } |
| |
| /** |
| * add and include pattern to the filter. Classes must match one of supplied |
| * include patterns to match the filter |
| */ |
| public void addIncludePattern(String includePattern) { |
| if (includePatterns == null) { |
| includePatterns = new ArrayList<String>(); |
| } |
| includePatterns.add(includePattern); |
| } |
| |
| public void addIncludePatterns(Collection<String> includes) { |
| if (includePatterns == null) { |
| includePatterns = new ArrayList<String>(); |
| } |
| includePatterns.addAll(includes); |
| } |
| |
| public void addExcludePatterns(Collection<String> excludes) { |
| if (excludePatterns == null) { |
| excludePatterns = new ArrayList<String>(); |
| } |
| excludePatterns.addAll(excludes); |
| } |
| |
| /** |
| * Tests if a given class matches the patterns in this filter. Patterns are |
| * specified by {@link AntPathMatcher} |
| * <p> |
| * if no include or exclude patterns are set then all classes match. |
| * <p> |
| * If the filter contains only include filters, then the candidate class |
| * must match one of the include patterns to match the filter and return |
| * true. |
| * <p> |
| * If the filter contains only exclude filters, then the filter will return |
| * true unless the candidate class matches an exclude pattern. |
| * <p> |
| * if this contains both include and exclude filters, then the above rules |
| * apply with excludes taking precedence over includes i.e. an include |
| * pattern of java.util.* and an exclude pattern of java.util.jar.* will |
| * include a file only if it is in the util pkg and not in the util.jar |
| * package. |
| * |
| * @return true if candidate class matches according to the above rules |
| */ |
| public boolean matches(Class<?> candidateClass) { |
| String candidate = candidateClass.getName(); |
| if (includePatterns != null || excludePatterns != null) { |
| |
| if (excludePatterns != null && excludePatterns.size() > 0) { |
| if (matchesAny(excludePatterns, candidate)) { |
| return false; |
| } |
| } |
| |
| if (includePatterns != null && includePatterns.size() > 0) { |
| return matchesAny(includePatterns, candidate); |
| } |
| |
| } |
| return true; |
| } |
| |
| private boolean matchesAny(List<String> patterns, String candidate) { |
| for (String pattern : patterns) { |
| if (matcher.match(pattern, candidate)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| } |