| /* |
| * 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.qpid.server.plugins; |
| |
| import static org.apache.felix.framework.util.FelixConstants.*; |
| import static org.apache.felix.main.AutoProcessor.*; |
| |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.IdentityHashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.commons.configuration.ConfigurationException; |
| import org.apache.felix.framework.Felix; |
| import org.apache.felix.framework.util.StringMap; |
| import org.apache.log4j.Logger; |
| import org.apache.qpid.common.Closeable; |
| import org.apache.qpid.server.configuration.TopicConfiguration; |
| import org.apache.qpid.server.configuration.plugins.SlowConsumerDetectionConfiguration.SlowConsumerDetectionConfigurationFactory; |
| import org.apache.qpid.server.configuration.plugins.SlowConsumerDetectionPolicyConfiguration.SlowConsumerDetectionPolicyConfigurationFactory; |
| import org.apache.qpid.server.configuration.plugins.SlowConsumerDetectionQueueConfiguration.SlowConsumerDetectionQueueConfigurationFactory; |
| import org.apache.qpid.server.configuration.plugins.ConfigurationPluginFactory; |
| import org.apache.qpid.server.exchange.ExchangeType; |
| import org.apache.qpid.server.security.SecurityManager; |
| import org.apache.qpid.server.security.SecurityPluginFactory; |
| import org.apache.qpid.server.security.access.plugins.AllowAll; |
| import org.apache.qpid.server.security.access.plugins.DenyAll; |
| import org.apache.qpid.server.security.access.plugins.LegacyAccess; |
| import org.apache.qpid.server.virtualhost.plugins.VirtualHostPluginFactory; |
| import org.apache.qpid.server.virtualhost.plugins.SlowConsumerDetection; |
| import org.apache.qpid.server.virtualhost.plugins.policies.TopicDeletePolicy; |
| import org.apache.qpid.slowconsumerdetection.policies.SlowConsumerPolicyPluginFactory; |
| import org.osgi.framework.BundleActivator; |
| import org.osgi.framework.BundleException; |
| import org.osgi.framework.launch.Framework; |
| import org.osgi.util.tracker.ServiceTracker; |
| |
| /** |
| * Provides access to pluggable elements, such as exchanges |
| */ |
| @SuppressWarnings("unchecked") |
| public class PluginManager implements Closeable |
| { |
| private static final Logger _logger = Logger.getLogger(PluginManager.class); |
| |
| private static final int FELIX_STOP_TIMEOUT = 30000; |
| private static final String QPID_VER_SUFFIX = "version=0.9,"; |
| |
| private Framework _felix; |
| |
| private ServiceTracker _exchangeTracker = null; |
| private ServiceTracker _securityTracker = null; |
| private ServiceTracker _configTracker = null; |
| private ServiceTracker _virtualHostTracker = null; |
| private ServiceTracker _policyTracker = null; |
| |
| private Activator _activator; |
| |
| private Map<String, SecurityPluginFactory> _securityPlugins = new HashMap<String, SecurityPluginFactory>(); |
| private Map<List<String>, ConfigurationPluginFactory> _configPlugins = new IdentityHashMap<List<String>, ConfigurationPluginFactory>(); |
| private Map<String, VirtualHostPluginFactory> _vhostPlugins = new HashMap<String, VirtualHostPluginFactory>(); |
| private Map<String, SlowConsumerPolicyPluginFactory> _policyPlugins = new HashMap<String, SlowConsumerPolicyPluginFactory>(); |
| |
| public PluginManager(String pluginPath, String cachePath) throws Exception |
| { |
| // Store all non-OSGi plugins |
| // A little gross that we have to add them here, but not all the plugins are OSGIfied |
| for (SecurityPluginFactory<?> pluginFactory : Arrays.asList( |
| AllowAll.FACTORY, DenyAll.FACTORY, LegacyAccess.FACTORY)) |
| { |
| _securityPlugins.put(pluginFactory.getPluginName(), pluginFactory); |
| } |
| for (ConfigurationPluginFactory configFactory : Arrays.asList( |
| TopicConfiguration.FACTORY, |
| SecurityManager.SecurityConfiguration.FACTORY, |
| AllowAll.AllowAllConfiguration.FACTORY, |
| DenyAll.DenyAllConfiguration.FACTORY, |
| LegacyAccess.LegacyAccessConfiguration.FACTORY, |
| new SlowConsumerDetectionConfigurationFactory(), |
| new SlowConsumerDetectionPolicyConfigurationFactory(), |
| new SlowConsumerDetectionQueueConfigurationFactory())) |
| { |
| _configPlugins.put(configFactory.getParentPaths(), configFactory); |
| } |
| for (SlowConsumerPolicyPluginFactory pluginFactory : Arrays.asList( |
| new TopicDeletePolicy.TopicDeletePolicyFactory())) |
| { |
| _policyPlugins.put(pluginFactory.getPluginName(), pluginFactory); |
| } |
| for (VirtualHostPluginFactory pluginFactory : Arrays.asList( |
| new SlowConsumerDetection.SlowConsumerFactory())) |
| { |
| _vhostPlugins.put(pluginFactory.getClass().getName(), pluginFactory); |
| } |
| |
| // Check the plugin directory path is set and exist |
| if (pluginPath == null) |
| { |
| return; |
| } |
| File pluginDir = new File(pluginPath); |
| if (!pluginDir.exists()) |
| { |
| return; |
| } |
| |
| // Setup OSGi configuration propery map |
| StringMap configMap = new StringMap(false); |
| |
| // Add the bundle provided service interface package and the core OSGi |
| // packages to be exported from the class path via the system bundle. |
| configMap.put(FRAMEWORK_SYSTEMPACKAGES, |
| "org.osgi.framework; version=1.3.0," + |
| "org.osgi.service.packageadmin; version=1.2.0," + |
| "org.osgi.service.startlevel; version=1.0.0," + |
| "org.osgi.service.url; version=1.0.0," + |
| "org.osgi.util.tracker; version=1.0.0," + |
| "org.apache.qpid.junit.extensions.util; " + QPID_VER_SUFFIX + |
| "org.apache.qpid; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.common; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.exchange; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.framing; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.management.common.mbeans.annotations; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.protocol; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.binding; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.configuration; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.configuration.plugins; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.configuration.management; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.exchange; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.logging; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.logging.actors; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.logging.subjects; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.management; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.persistent; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.plugins; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.protocol; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.queue; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.registry; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.security; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.security.access; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.security.access.plugins; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.virtualhost; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.server.virtualhost.plugins; " + QPID_VER_SUFFIX + |
| "org.apache.qpid.util; " + QPID_VER_SUFFIX + |
| "org.apache.commons.configuration; version=1.0.0," + |
| "org.apache.commons.lang; version=1.0.0," + |
| "org.apache.commons.lang.builder; version=1.0.0," + |
| "org.apache.commons.logging; version=1.0.0," + |
| "org.apache.log4j; version=1.2.12," + |
| "javax.management.openmbean; version=1.0.0," + |
| "javax.management; version=1.0.0" |
| ); |
| |
| // No automatic shutdown hook |
| configMap.put("felix.shutdown.hook", "false"); |
| |
| // Add system activator |
| List<BundleActivator> activators = new ArrayList<BundleActivator>(); |
| _activator = new Activator(); |
| activators.add(_activator); |
| configMap.put(SYSTEMBUNDLE_ACTIVATORS_PROP, activators); |
| |
| if (cachePath != null) |
| { |
| File cacheDir = new File(cachePath); |
| if (!cacheDir.exists() && cacheDir.canWrite()) |
| { |
| _logger.info("Creating plugin cache directory: " + cachePath); |
| cacheDir.mkdir(); |
| } |
| |
| // Set plugin cache directory and empty it |
| _logger.info("Cache bundles in directory " + cachePath); |
| configMap.put(FRAMEWORK_STORAGE, cachePath); |
| } |
| configMap.put(FRAMEWORK_STORAGE_CLEAN, FRAMEWORK_STORAGE_CLEAN_ONFIRSTINIT); |
| |
| // Set directory with plugins to auto-deploy |
| _logger.info("Auto deploying bundles from directory " + pluginPath); |
| configMap.put(AUTO_DEPLOY_DIR_PROPERY, pluginPath); |
| configMap.put(AUTO_DEPLOY_ACTION_PROPERY, AUTO_DEPLOY_INSTALL_VALUE + "," + AUTO_DEPLOY_START_VALUE); |
| |
| // Start plugin manager and trackers |
| _felix = new Felix(configMap); |
| try |
| { |
| _logger.info("Starting plugin manager..."); |
| _felix.init(); |
| process(configMap, _felix.getBundleContext()); |
| _felix.start(); |
| _logger.info("Started plugin manager"); |
| } |
| catch (BundleException e) |
| { |
| throw new ConfigurationException("Could not start plugin manager: " + e.getMessage(), e); |
| } |
| |
| // TODO save trackers in a map, keyed by class name |
| |
| _exchangeTracker = new ServiceTracker(_activator.getContext(), ExchangeType.class.getName(), null); |
| _exchangeTracker.open(); |
| |
| _securityTracker = new ServiceTracker(_activator.getContext(), SecurityPluginFactory.class.getName(), null); |
| _securityTracker.open(); |
| |
| _configTracker = new ServiceTracker(_activator.getContext(), ConfigurationPluginFactory.class.getName(), null); |
| _configTracker.open(); |
| |
| _virtualHostTracker = new ServiceTracker(_activator.getContext(), VirtualHostPluginFactory.class.getName(), null); |
| _virtualHostTracker.open(); |
| |
| _policyTracker = new ServiceTracker(_activator.getContext(), SlowConsumerPolicyPluginFactory.class.getName(), null); |
| _policyTracker.open(); |
| |
| _logger.info("Opened service trackers"); |
| } |
| |
| private static <T> Map<String, T> getServices(ServiceTracker tracker) |
| { |
| Map<String, T> services = new HashMap<String, T>(); |
| |
| if ((tracker != null) && (tracker.getServices() != null)) |
| { |
| for (Object service : tracker.getServices()) |
| { |
| if (service instanceof PluginFactory<?>) |
| { |
| services.put(((PluginFactory<?>) service).getPluginName(), (T) service); |
| } |
| else |
| { |
| services.put(service.getClass().getName(), (T) service); |
| } |
| } |
| } |
| |
| return services; |
| } |
| |
| public static <T> Map<String, T> getServices(ServiceTracker tracker, Map<String, T> plugins) |
| { |
| Map<String, T> services = getServices(tracker); |
| services.putAll(plugins); |
| return services; |
| } |
| |
| public Map<List<String>, ConfigurationPluginFactory> getConfigurationPlugins() |
| { |
| Map<List<String>, ConfigurationPluginFactory> services = new IdentityHashMap<List<String>, ConfigurationPluginFactory>(); |
| |
| if (_configTracker != null && _configTracker.getServices() != null) |
| { |
| for (Object service : _configTracker.getServices()) |
| { |
| ConfigurationPluginFactory factory = (ConfigurationPluginFactory) service; |
| services.put(factory.getParentPaths(), factory); |
| } |
| } |
| |
| services.putAll(_configPlugins); |
| |
| return services; |
| } |
| |
| public Map<String, VirtualHostPluginFactory> getVirtualHostPlugins() |
| { |
| return getServices(_virtualHostTracker, _vhostPlugins); |
| } |
| |
| public Map<String, SlowConsumerPolicyPluginFactory> getSlowConsumerPlugins() |
| { |
| return getServices(_policyTracker, _policyPlugins); |
| } |
| |
| public Map<String, ExchangeType<?>> getExchanges() |
| { |
| return getServices(_exchangeTracker); |
| } |
| |
| public Map<String, SecurityPluginFactory> getSecurityPlugins() |
| { |
| return getServices(_securityTracker, _securityPlugins); |
| } |
| |
| public void close() |
| { |
| if (_felix != null) |
| { |
| try |
| { |
| // Close all bundle trackers |
| _exchangeTracker.close(); |
| _securityTracker.close(); |
| _configTracker.close(); |
| _virtualHostTracker.close(); |
| _policyTracker.close(); |
| } |
| finally |
| { |
| _logger.info("Stopping plugin manager"); |
| try |
| { |
| // FIXME should be stopAndWait() but hangs VM, need upgrade in felix |
| _felix.stop(); |
| } |
| catch (BundleException e) |
| { |
| // Ignore |
| } |
| |
| try |
| { |
| _felix.waitForStop(FELIX_STOP_TIMEOUT); |
| } |
| catch (InterruptedException e) |
| { |
| // Ignore |
| } |
| _logger.info("Stopped plugin manager"); |
| } |
| } |
| } |
| } |