Remove unused ClosableJarHandler classes
Change-Id: If59eff0c46daf9509f88f6a24ff99c5be89657dd
diff --git a/dev/core/src/com/google/gwt/dev/url/CloseableJarHandler.java b/dev/core/src/com/google/gwt/dev/url/CloseableJarHandler.java
deleted file mode 100644
index 095c0cb..0000000
--- a/dev/core/src/com/google/gwt/dev/url/CloseableJarHandler.java
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- * Copyright 2014 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.url;
-
-import com.google.gwt.thirdparty.guava.common.collect.HashMultimap;
-import com.google.gwt.thirdparty.guava.common.collect.Multimap;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.net.JarURLConnection;
-import java.net.URL;
-import java.net.URLConnection;
-import java.security.Permission;
-import java.util.Collection;
-import java.util.List;
-import java.util.Map;
-
-/**
- * Opens connections to Zip files when requested and gathers them in a list for later closing.
- * <p>
- * This closing functionality makes it possible to run untrusted plugin code (for example
- * Generators) and still guarantee that there will be no accidental attempts to read from old and
- * deleted Zip files using stale InputStreams.
- */
-@SuppressWarnings("restriction")
-public class CloseableJarHandler extends sun.net.www.protocol.jar.Handler {
-
- /**
- * Passes through all URLConnection access but collects all created InputStreams.
- */
- private class CloseableUrlConnection extends URLConnection {
-
- private JarURLConnection jarUrlConnection;
-
- public CloseableUrlConnection(URL jarUrl, JarURLConnection jarUrlConnection) {
- super(jarUrl);
- this.jarUrlConnection = jarUrlConnection;
- }
-
- @Override
- public void addRequestProperty(String key, String value) {
- jarUrlConnection.addRequestProperty(key, value);
- }
-
- @Override
- public void connect() throws IOException {
- jarUrlConnection.connect();
- }
-
- @Override
- public boolean getAllowUserInteraction() {
- return jarUrlConnection.getAllowUserInteraction();
- }
-
- @Override
- public int getConnectTimeout() {
- return jarUrlConnection.getConnectTimeout();
- }
-
- @Override
- public Object getContent() throws IOException {
- return jarUrlConnection.getContent();
- }
-
- @Override
- public Object getContent(Class[] classes) throws IOException {
- return jarUrlConnection.getContent(classes);
- }
-
- @Override
- public String getContentEncoding() {
- return jarUrlConnection.getContentEncoding();
- }
-
- @Override
- public int getContentLength() {
- return jarUrlConnection.getContentLength();
- }
-
- // No @Override as the method is only available in Java 7.
- public long getContentLengthLong() {
- int contentLength = jarUrlConnection.getContentLength();
- if (contentLength == -1) {
- throw new RuntimeException("Content length could not be read because it exceeded "
- + Integer.MAX_VALUE + " bytes.");
- }
- return contentLength;
- }
-
- @Override
- public String getContentType() {
- return jarUrlConnection.getContentType();
- }
-
- @Override
- public long getDate() {
- return jarUrlConnection.getDate();
- }
-
- @Override
- public boolean getDefaultUseCaches() {
- return jarUrlConnection.getDefaultUseCaches();
- }
-
- @Override
- public boolean getDoInput() {
- return jarUrlConnection.getDoInput();
- }
-
- @Override
- public boolean getDoOutput() {
- return jarUrlConnection.getDoOutput();
- }
-
- @Override
- public long getExpiration() {
- return jarUrlConnection.getExpiration();
- }
-
- @Override
- public String getHeaderField(int n) {
- return jarUrlConnection.getHeaderField(n);
- }
-
- // No need to override getHeaderField<Blah> as they all get routed to get getHeaderField()
- @Override
- public String getHeaderField(String name) {
- return jarUrlConnection.getHeaderField(name);
- }
-
- @Override
- public String getHeaderFieldKey(int n) {
- return jarUrlConnection.getHeaderFieldKey(n);
- }
-
- @Override
- public Map<String, List<String>> getHeaderFields() {
- return jarUrlConnection.getHeaderFields();
- }
-
- @Override
- public long getIfModifiedSince() {
- return jarUrlConnection.getIfModifiedSince();
- }
-
- @Override
- public InputStream getInputStream() throws IOException {
- InputStream inputStream = jarUrlConnection.getInputStream();
- URL jarFileURL = jarUrlConnection.getJarFileURL();
- inputStreamsByJarFilePath.put(jarFileURL.getFile(), inputStream);
- return inputStream;
- }
-
- @Override
- public long getLastModified() {
- return jarUrlConnection.getLastModified();
- }
-
- @Override
- public OutputStream getOutputStream() throws IOException {
- return jarUrlConnection.getOutputStream();
- }
-
- @Override
- public Permission getPermission() throws IOException {
- return jarUrlConnection.getPermission();
- }
-
- @Override
- public int getReadTimeout() {
- return jarUrlConnection.getReadTimeout();
- }
-
- @Override
- public Map<String, List<String>> getRequestProperties() {
- return jarUrlConnection.getRequestProperties();
- }
-
- @Override
- public String getRequestProperty(String key) {
- return jarUrlConnection.getRequestProperty(key);
- }
-
- @Override
- public URL getURL() {
- return jarUrlConnection.getURL();
- }
-
- @Override
- public boolean getUseCaches() {
- return jarUrlConnection.getUseCaches();
- }
-
- @Override
- public void setAllowUserInteraction(boolean allowuserinteraction) {
- jarUrlConnection.setAllowUserInteraction(allowuserinteraction);
- }
-
- @Override
- public void setConnectTimeout(int timeout) {
- jarUrlConnection.setConnectTimeout(timeout);
- }
-
- @Override
- public void setDefaultUseCaches(boolean defaultusecaches) {
- jarUrlConnection.setDefaultUseCaches(defaultusecaches);
- }
-
- @Override
- public void setDoInput(boolean doinput) {
- jarUrlConnection.setDoInput(doinput);
- }
-
- @Override
- public void setDoOutput(boolean dooutput) {
- jarUrlConnection.setDoOutput(dooutput);
- }
-
- @Override
- public void setIfModifiedSince(long ifmodifiedsince) {
- jarUrlConnection.setIfModifiedSince(ifmodifiedsince);
- }
-
- @Override
- public void setReadTimeout(int timeout) {
- jarUrlConnection.setReadTimeout(timeout);
- }
-
- @Override
- public void setRequestProperty(String key, String value) {
- jarUrlConnection.setRequestProperty(key, value);
- }
-
- @Override
- public void setUseCaches(boolean usecaches) {
- jarUrlConnection.setUseCaches(usecaches);
- }
-
- @Override
- public String toString() {
- return jarUrlConnection.toString();
- }
- }
-
- private Multimap<String, InputStream> inputStreamsByJarFilePath = HashMultimap.create();
-
- /**
- * Closes all InputStreams that were created by the URL system that point at the given Jar file.
- */
- public void closeStreams(String jarFilePath) throws IOException {
- Collection<InputStream> inputStreams = inputStreamsByJarFilePath.get(jarFilePath);
- if (inputStreams == null) {
- return;
- }
-
- for (InputStream inputStream : inputStreams) {
- inputStream.close();
- }
- inputStreamsByJarFilePath.removeAll(jarFilePath);
- }
-
- @Override
- protected URLConnection openConnection(URL jarUrl) throws IOException {
- // Let the Jar system do the heavy lifting of opening the connection.
- JarURLConnection jarUrlConnection = (JarURLConnection) super.openConnection(jarUrl);
- // Ensures that when all connections have been closed the cached Zip file references will be
- // cleared.
- jarUrlConnection.setUseCaches(false);
-
- // Wrap the jar url connection in a way that will collect all created InputStreams so that they
- // can be closed.
- return new CloseableUrlConnection(jarUrl, jarUrlConnection);
- }
-}
diff --git a/dev/core/src/com/google/gwt/dev/url/CloseableJarHandlerFactory.java b/dev/core/src/com/google/gwt/dev/url/CloseableJarHandlerFactory.java
deleted file mode 100644
index 90c11ea..0000000
--- a/dev/core/src/com/google/gwt/dev/url/CloseableJarHandlerFactory.java
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright 2014 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.url;
-
-import java.io.IOException;
-import java.net.URL;
-import java.net.URLStreamHandler;
-import java.net.URLStreamHandlerFactory;
-
-/**
- * A factory that constructs URL Stream Handlers and extends Jar protocol handling by making it
- * possible to close all InputStreams for a given Zip file.
- * <p>
- * This closing functionality makes it possible to run untrusted plugin code (for example
- * Generators) and still guarantee that there will be no accidental attempts to read from old and
- * deleted Zip files using stale InputStreams.
- */
-public class CloseableJarHandlerFactory implements URLStreamHandlerFactory {
-
- /**
- * Takes over the URL connection opening system so that Zip file connections can be gathered and
- * then closed before Zip files are replaced on disk. This avoids a JVM crash on Linux that can
- * occur if a third party plugin (ie. Generator) fails to close its InputStreams.
- */
- private static CloseableJarHandlerFactory closeableJarHandlerFactory;
-
- /**
- * Closes all InputStreams that were created by the URL system that point at the given Jar file.
- */
- public static void closeStreams(String jarFilePath) throws IOException {
- closeableJarHandlerFactory.closeableJarHandler.closeStreams(jarFilePath);
- }
-
- /**
- * Ensures that the standard UrlStreamHandlerFactory has been replaced.
- */
- public static synchronized void installOverride() {
- if (closeableJarHandlerFactory == null) {
- closeableJarHandlerFactory = new CloseableJarHandlerFactory();
- URL.setURLStreamHandlerFactory(closeableJarHandlerFactory);
- }
- }
-
- private static URLStreamHandler createHandlerForProtocol(String protocol) {
- String className = String.format("sun.net.www.protocol.%s.Handler", protocol);
- try {
- return (URLStreamHandler) Class.forName(className).newInstance();
- } catch (ClassNotFoundException e) {
- throw new RuntimeException("Couldn't find handler for protocol: " + protocol);
- } catch (InstantiationException e) {
- throw new RuntimeException("Handler isn't not instantiable for protocol: " + protocol);
- } catch (IllegalAccessException e) {
- throw new RuntimeException("Handler isn't not accessible for protocol: " + protocol);
- }
- }
-
- private CloseableJarHandler closeableJarHandler = new CloseableJarHandler();
-
- private CloseableJarHandlerFactory() {
- // Force access through the public static functions.
- }
-
- @Override
- public URLStreamHandler createURLStreamHandler(String protocol) {
- if (protocol.equals("jar")) {
- // Override the url stream handler for Jar files.
- return closeableJarHandler;
- } else {
- // Regular url stream handling for other protocols.
- return createHandlerForProtocol(protocol);
- }
- }
-}
