| /* |
| * Copyright 2008 Google Inc. |
| * |
| * 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.google.gwt.dev.resource.impl; |
| |
| import com.google.gwt.dev.util.StringInterner; |
| import com.google.gwt.dev.util.Strings; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.zip.ZipEntry; |
| |
| /** |
| * Represents a resource contained in a jar or zip file. |
| */ |
| public class ZipFileResource extends AbstractResource { |
| |
| private final ZipFileClassPathEntry classPathEntry; |
| private final String path; |
| private final String[] pathParts; |
| |
| public ZipFileResource(ZipFileClassPathEntry classPathEntry, String path) { |
| this.classPathEntry = classPathEntry; |
| this.path = StringInterner.get().intern(path); |
| this.pathParts = Strings.splitPath(path); |
| } |
| |
| @Override |
| public ZipFileClassPathEntry getClassPathEntry() { |
| return classPathEntry; |
| } |
| |
| /** |
| * Returns the lastModified time of the zip file itself. Some build environments contain zip file |
| * entries that are not time synchronized, causing problems with staleness calculations. |
| */ |
| @Override |
| public long getLastModified() { |
| return classPathEntry.lastModified(); |
| } |
| |
| @Override |
| public String getLocation() { |
| // CHECKSTYLE_OFF |
| return "jar:" + classPathEntry.getLocation() + "!/" + path; |
| // CHECKSTYLE_ON |
| } |
| |
| @Override |
| public String getPath() { |
| return path; |
| } |
| |
| /** |
| * @return components of {@link #getPath()}. |
| */ |
| public String[] getPathParts() { |
| return pathParts; |
| } |
| |
| @Override |
| public InputStream openContents() { |
| try { |
| return classPathEntry.getZipFile().getInputStream(new ZipEntry(path)); |
| } catch (IOException e) { |
| // The spec for this method says it can return null. |
| return null; |
| } |
| } |
| |
| @Override |
| public boolean wasRerooted() { |
| return false; |
| } |
| } |