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java/org/apache/catalina/webresources/JarResourceRoot.java

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+/*
+ * 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.catalina.webresources;
+
+import java.io.File;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.security.cert.Certificate;
+import java.util.jar.Manifest;
+
+import org.apache.catalina.WebResourceRoot;
+import org.apache.juli.logging.Log;
+import org.apache.juli.logging.LogFactory;
+
+public class JarResourceRoot extends AbstractResource {
+
+    private static final Log log = LogFactory.getLog(JarResourceRoot.class);
+
+    private final File base;
+    private final String baseUrl;
+    private final String name;
+
+    public JarResourceRoot(WebResourceRoot root, File base, String baseUrl,
+            String webAppPath) {
+        super(root, webAppPath);
+        // Validate the webAppPath before going any further
+        if (!webAppPath.endsWith("/")) {
+            throw new IllegalArgumentException(sm.getString(
+                    "jarResourceRoot.invalidWebAppPath", webAppPath));
+        }
+        this.base = base;
+        this.baseUrl = "jar:" + baseUrl;
+        // Extract the name from the webAppPath
+        // Strip the trailing '/' character
+        String resourceName = webAppPath.substring(0, webAppPath.length() - 1);
+        int i = resourceName.lastIndexOf('/');
+        if (i > -1) {
+            resourceName = resourceName.substring(i + 1);
+        }
+        name = resourceName;
+    }
+
+    @Override
+    public long getLastModified() {
+        return base.lastModified();
+    }
+
+    @Override
+    public boolean exists() {
+        return true;
+    }
+
+    @Override
+    public boolean isVirtual() {
+        return false;
+    }
+
+    @Override
+    public boolean isDirectory() {
+        return true;
+    }
+
+    @Override
+    public boolean isFile() {
+        return false;
+    }
+
+    @Override
+    public boolean delete() {
+        return false;
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public long getContentLength() {
+        return -1;
+    }
+
+    @Override
+    public String getCanonicalPath() {
+        return null;
+    }
+
+    @Override
+    public boolean canRead() {
+        return true;
+    }
+
+    @Override
+    protected InputStream doGetInputStream() {
+        return null;
+    }
+
+    @Override
+    public byte[] getContent() {
+        return null;
+    }
+
+    @Override
+    public long getCreation() {
+        return base.lastModified();
+    }
+
+    @Override
+    public URL getURL() {
+        String url = baseUrl + "!/";
+        try {
+            return new URL(url);
+        } catch (MalformedURLException e) {
+            if (log.isDebugEnabled()) {
+                log.debug(sm.getString("fileResource.getUrlFail", url), e);
+            }
+            return null;
+        }
+    }
+
+    @Override
+    public URL getCodeBase() {
+        try {
+            return new URL(baseUrl);
+        } catch (MalformedURLException e) {
+            if (getLog().isDebugEnabled()) {
+                getLog().debug(sm.getString("fileResource.getUrlFail", baseUrl), e);
+            }
+            return null;
+        }
+    }
+    @Override
+    protected Log getLog() {
+        return log;
+    }
+
+    @Override
+    public Certificate[] getCertificates() {
+        return null;
+    }
+
+    @Override
+    public Manifest getManifest() {
+        return null;
+    }
+}