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https://github.com/vanitasvitae/Smack.git
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4c76f2652d
Because of OSGi, no subproject of Smack (which is the same as a OSGi bundle) must export a package that is already exported by another subproject. Therefore it was necessary to move the TCP and BOSH code into their own packages: org.jivesoftware.smack.(tcp|bosh). OSGi classloader restrictions also made it necessary to create a Declarative Service for smack-extensions, smack-experimental and smack-lagacy (i.e. smack subprojects which should be initialized), in order to initialize them accordingly, as smack-core is, when used in a OSGi environment, unable to load and initialize classes from other smack bundles. OSGi's "Service Component Runtime" (SCR) will now take care of running the initialization code of the particular Smack bundle by activating its Declarative Service. That is also the reason why most initialization related method now have an additional classloader argument. Note that due the refactoring, some ugly changes in XMPPTCPConnection and its PacketReader and PacketWriter where necessary.
150 lines
4.7 KiB
Java
150 lines
4.7 KiB
Java
/**
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*
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* Copyright the original author or authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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.jivesoftware.smack.util;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.Reader;
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import java.net.MalformedURLException;
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import java.net.URI;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Set;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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public final class FileUtils {
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private static final Logger LOGGER = Logger.getLogger(FileUtils.class.getName());
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public static InputStream getStreamForUrl(String url, ClassLoader loader) throws MalformedURLException, IOException {
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URI fileUri = URI.create(url);
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if (fileUri.getScheme() == null) {
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throw new MalformedURLException("No protocol found in file URL: " + url);
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}
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if (fileUri.getScheme().equals("classpath")) {
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// Get an array of class loaders to try loading the providers files from.
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List<ClassLoader> classLoaders = getClassLoaders();
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if (loader != null) {
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classLoaders.add(0, loader);
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}
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for (ClassLoader classLoader : classLoaders) {
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InputStream is = classLoader.getResourceAsStream(fileUri.getSchemeSpecificPart());
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if (is != null) {
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return is;
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}
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}
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}
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else {
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return fileUri.toURL().openStream();
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}
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return null;
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}
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/**
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* Returns default classloaders.
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*
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* @return a List of ClassLoader instances.
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*/
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public static List<ClassLoader> getClassLoaders() {
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ClassLoader[] classLoaders = new ClassLoader[2];
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classLoaders[0] = FileUtils.class.getClassLoader();
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classLoaders[1] = Thread.currentThread().getContextClassLoader();
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// Clean up possible null values. Note that #getClassLoader may return a null value.
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List<ClassLoader> loaders = new ArrayList<ClassLoader>(classLoaders.length);
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for (ClassLoader classLoader : classLoaders) {
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if (classLoader != null) {
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loaders.add(classLoader);
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}
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}
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return loaders;
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}
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public static boolean addLines(String url, Set<String> set) throws MalformedURLException, IOException {
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InputStream is = getStreamForUrl(url, null);
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if (is == null) return false;
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BufferedReader br = new BufferedReader(new InputStreamReader(is));
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String line;
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while ((line = br.readLine()) != null) {
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set.add(line);
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}
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return true;
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}
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/**
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* Reads the contents of a File
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*
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* @param file
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* @return the content of file or null in case of an error
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* @throws IOException
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*/
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public static String readFileOrThrow(File file) throws FileNotFoundException, IOException {
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Reader reader = null;
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try {
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reader = new FileReader(file);
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char buf[] = new char[8192];
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int len;
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StringBuilder s = new StringBuilder();
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while ((len = reader.read(buf)) >= 0) {
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s.append(buf, 0, len);
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}
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return s.toString();
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}
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finally {
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if (reader != null) {
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reader.close();
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}
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}
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}
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public static String readFile(File file) {
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try {
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return readFileOrThrow(file);
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} catch (Exception e) {
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LOGGER.log(Level.WARNING, "readFile", e);
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}
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return null;
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}
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public static void writeFileOrThrow(File file, String content) throws IOException {
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FileWriter writer = new FileWriter(file, false);
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writer.write(content);
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writer.close();
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}
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public static boolean writeFile(File file, String content) {
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try {
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writeFileOrThrow(file, content);
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return true;
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}
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catch (IOException e) {
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LOGGER.log(Level.WARNING, "writeFile", e);
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return false;
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}
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}
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}
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