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https://github.com/vanitasvitae/Smack.git
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665e7914f2
on package layer instead of Declarative Service (DS) approach. Restructuring and cleanup of initialization process to ensure that all internal config files are found by the corresponding bundle classloaders. SMACK-343
88 lines
3.1 KiB
Java
88 lines
3.1 KiB
Java
/**
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*
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* Copyright 2014 Florian Schmaus
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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.initializer;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import org.jivesoftware.smack.SmackInitialization;
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import org.jivesoftware.smack.provider.ProviderFileLoader;
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import org.jivesoftware.smack.provider.ProviderManager;
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import org.jivesoftware.smack.util.FileUtils;
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/**
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* Loads the provider file defined by the URL returned by {@link #getProvidersUrl()} and the generic
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* smack configuration file returned {@link #getConfigUrl()}.
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*
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* @author Florian Schmaus
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*/
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public abstract class UrlInitializer implements SmackInitializer {
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private static final Logger LOGGER = Logger.getLogger(UrlInitializer.class.getName());
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@Override
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public List<Exception> initialize() {
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InputStream is;
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final ClassLoader classLoader = this.getClass().getClassLoader();
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final List<Exception> exceptions = new LinkedList<Exception>();
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final String providerUrl = getProvidersUrl();
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if (providerUrl != null) {
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try {
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is = FileUtils.getStreamForUrl(providerUrl, classLoader);
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if (is != null) {
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LOGGER.log(Level.FINE, "Loading providers for providerUrl [" + providerUrl
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+ "]");
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ProviderFileLoader pfl = new ProviderFileLoader(is, classLoader);
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ProviderManager.addLoader(pfl);
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exceptions.addAll(pfl.getLoadingExceptions());
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}
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else {
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LOGGER.log(Level.WARNING, "No input stream created for " + providerUrl);
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exceptions.add(new IOException("No input stream created for " + providerUrl));
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}
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}
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catch (Exception e) {
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LOGGER.log(Level.SEVERE, "Error trying to load provider file " + providerUrl, e);
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exceptions.add(e);
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}
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}
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final String configUrl = getConfigUrl();
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if (configUrl != null) {
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try {
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is = FileUtils.getStreamForUrl(configUrl, classLoader);
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SmackInitialization.processConfigFile(is, exceptions, classLoader);
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}
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catch (Exception e) {
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exceptions.add(e);
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}
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}
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return exceptions;
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}
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protected String getProvidersUrl() {
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return null;
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}
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protected String getConfigUrl() {
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return null;
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}
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}
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