com.google.gwt.dev.resource.impl.ZipFileResource Maven / Gradle / Ivy
/*
* 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() throws IOException {
return classPathEntry.getZipFile().getInputStream(new ZipEntry(path));
}
@Override
public boolean wasRerooted() {
return false;
}
}