72 lines
2.5 KiB
Java
72 lines
2.5 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.tomcat.util.scan;
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import java.io.IOException;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.regex.Matcher;
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import org.apache.tomcat.Jar;
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import org.apache.tomcat.util.buf.UriUtil;
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/**
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* Provide a mechanism to obtain objects that implement {@link Jar}.
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*/
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public class JarFactory {
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private JarFactory() {
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// Factory class. Hide public constructor.
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}
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public static Jar newInstance(URL url) throws IOException {
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String urlString = url.toString();
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if (urlString.startsWith("jar:file:")) {
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if (urlString.endsWith("!/")) {
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return new JarFileUrlJar(url, true);
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} else {
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return new JarFileUrlNestedJar(url);
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}
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} else if (urlString.startsWith("war:file:")) {
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URL jarUrl = UriUtil.warToJar(url);
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return new JarFileUrlNestedJar(jarUrl);
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} else if (urlString.startsWith("file:")) {
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return new JarFileUrlJar(url, false);
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} else {
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return new UrlJar(url);
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}
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}
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public static URL getJarEntryURL(URL baseUrl, String entryName)
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throws MalformedURLException {
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String baseExternal = baseUrl.toExternalForm();
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if (baseExternal.startsWith("jar")) {
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// Assume this is pointing to a JAR file within a WAR. Java doesn't
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// support jar:jar:file:... so switch to Tomcat's war:file:...
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baseExternal = baseExternal.replaceFirst("^jar:", "war:");
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baseExternal = baseExternal.replaceFirst("!/",
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Matcher.quoteReplacement(UriUtil.getWarSeparator()));
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}
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return new URL("jar:" + baseExternal + "!/" + entryName);
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}
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}
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