| /* |
| * 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 com.opensymphony.xwork2.util; |
| |
| import com.opensymphony.xwork2.XWorkException; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.net.URL; |
| import java.net.URLClassLoader; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Vector; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipInputStream; |
| |
| /** |
| * This class is an utility class that will search through the classpath |
| * for files whose names match the given pattern. The filename is tested |
| * using the given implementation of {@link com.opensymphony.xwork2.util.PatternMatcher} by default it |
| * uses {@link com.opensymphony.xwork2.util.WildcardHelper} |
| */ |
| public class ClassPathFinder { |
| |
| /** |
| * The String pattern to test against. |
| */ |
| private String pattern ; |
| |
| private int[] compiledPattern ; |
| |
| /** |
| * The PatternMatcher implementation to use |
| */ |
| private PatternMatcher<int[]> patternMatcher = new WildcardHelper(); |
| |
| private Vector<String> compared = new Vector<>(); |
| |
| /** |
| * @return the pattern in use |
| */ |
| public String getPattern() { |
| return pattern; |
| } |
| |
| /** |
| * @param pattern the String pattern for comparing filenames |
| */ |
| public void setPattern(String pattern) { |
| this.pattern = pattern; |
| } |
| |
| /** |
| * Builds a {@link java.util.Vector} containing Strings which each name a file |
| * who's name matches the pattern set by setPattern(String). The classpath is |
| * searched recursively, so use with caution. |
| * |
| * @return Vector<String> containing matching filenames |
| */ |
| public Vector<String> findMatches() { |
| Vector<String> matches = new Vector<>(); |
| URL[] parentUrls = getClassLoaderURLs(); |
| compiledPattern = patternMatcher.compilePattern(pattern); |
| for (URL url : parentUrls) { |
| if (!"file".equals(url.getProtocol())) { |
| continue ; |
| } |
| URI entryURI ; |
| try { |
| entryURI = url.toURI(); |
| } catch (URISyntaxException e) { |
| continue; |
| } |
| File entry = new File(entryURI); |
| if (entry.isFile() && entry.toString().endsWith(".jar")) { |
| try { |
| ZipInputStream zip = new ZipInputStream(new FileInputStream(entry)); |
| for (ZipEntry zipEntry = zip.getNextEntry(); zipEntry != null; zipEntry = zip.getNextEntry()) { |
| boolean doesMatch = patternMatcher.match(new HashMap<String, String>(), zipEntry.getName(), compiledPattern); |
| if (doesMatch) { |
| matches.add(zipEntry.getName()); |
| } |
| } |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| } else { |
| Vector<String> results = checkEntries(entry.list(), entry, ""); |
| if (results != null) { |
| matches.addAll(results); |
| } |
| } |
| } |
| return matches; |
| } |
| |
| private Vector<String> checkEntries(String[] entries, File parent, String prefix) { |
| |
| if (entries == null ) { |
| return null; |
| } |
| |
| Vector<String> matches = new Vector<>(); |
| for (String listEntry : entries) { |
| File tempFile ; |
| if (!"".equals(prefix) ) { |
| tempFile = new File(parent, prefix + "/" + listEntry); |
| } |
| else { |
| tempFile = new File(parent, listEntry); |
| } |
| if (tempFile.isDirectory() && |
| !(".".equals(listEntry) || "..".equals(listEntry)) ) { |
| if (!"".equals(prefix) ) { |
| matches.addAll(checkEntries(tempFile.list(), parent, prefix + "/" + listEntry)); |
| } |
| else { |
| matches.addAll(checkEntries(tempFile.list(), parent, listEntry)); |
| } |
| } |
| else { |
| |
| String entryToCheck ; |
| if ("".equals(prefix)) { |
| entryToCheck = listEntry ; |
| } |
| else { |
| entryToCheck = prefix + "/" + listEntry ; |
| } |
| |
| if (compared.contains(entryToCheck) ) { |
| continue; |
| } |
| else { |
| compared.add(entryToCheck) ; |
| } |
| |
| boolean doesMatch = patternMatcher.match(new HashMap<String,String>(), entryToCheck, compiledPattern); |
| if (doesMatch) { |
| matches.add(entryToCheck); |
| } |
| } |
| } |
| return matches ; |
| } |
| |
| /** |
| * @param patternMatcher the PatternMatcher implementation to use when comparing filenames |
| */ |
| public void setPatternMatcher(PatternMatcher<int[]> patternMatcher) { |
| this.patternMatcher = patternMatcher; |
| } |
| |
| private URL[] getClassLoaderURLs() { |
| URL[] urls; |
| ClassLoader loader = Thread.currentThread().getContextClassLoader(); |
| |
| if (!(loader instanceof URLClassLoader)) { |
| loader = ClassPathFinder.class.getClassLoader(); |
| } |
| |
| if (loader instanceof URLClassLoader) { |
| urls = ((URLClassLoader) loader).getURLs(); |
| } else { //jdk9 or later |
| try { |
| urls = Collections.list(loader.getResources("")).toArray(new URL[0]); |
| } catch (IOException e) { |
| throw new XWorkException("unable to get ClassLoader URLs", e); |
| } |
| } |
| |
| return urls; |
| } |
| } |