| /** |
| * 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.cxf.dosgi.common.intent.impl; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.Callable; |
| |
| import org.apache.aries.rsa.spi.IntentUnsatisfiedException; |
| import org.apache.cxf.dosgi.common.intent.IntentHandler; |
| import org.apache.cxf.dosgi.common.intent.IntentManager; |
| import org.apache.cxf.dosgi.common.intent.IntentProvider; |
| import org.apache.cxf.dosgi.common.util.OsgiUtils; |
| import org.apache.cxf.endpoint.AbstractEndpointFactory; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Filter; |
| import org.osgi.framework.FrameworkUtil; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.remoteserviceadmin.RemoteConstants; |
| import org.osgi.util.tracker.ServiceTracker; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Component(service = IntentManager.class) |
| public class IntentManagerImpl implements IntentManager { |
| |
| static final Logger LOG = LoggerFactory.getLogger(IntentManagerImpl.class); |
| private static final int DEFAULT_INTENT_TIMEOUT = 30000; |
| |
| private final Map<String, Object> intentMap = new HashMap<String, Object>(); |
| private final long maxIntentWaitTime = DEFAULT_INTENT_TIMEOUT; |
| private ServiceTracker<Object, Object> tracker; |
| |
| @Activate |
| public void activate(BundleContext context) throws InvalidSyntaxException { |
| Filter filter = FrameworkUtil.createFilter("(" + IntentManager.INTENT_NAME_PROP + "=*)"); |
| tracker = new ServiceTracker<Object, Object>(context, filter, null) { |
| @Override |
| public Object addingService(ServiceReference<Object> reference) { |
| Object intent = super.addingService(reference); |
| addIntent(intent, (String)reference.getProperty(INTENT_NAME_PROP)); |
| return intent; |
| } |
| |
| @Override |
| public void removedService(ServiceReference<Object> reference, Object intent) { |
| removeIntent(intent, (String)reference.getProperty(INTENT_NAME_PROP)); |
| super.removedService(reference, intent); |
| } |
| }; |
| tracker.open(); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| tracker.close(); |
| } |
| |
| public synchronized void addIntent(Object intent, String intentName) { |
| LOG.info("Adding custom intent " + intentName); |
| intentMap.put(intentName, intent); |
| } |
| |
| public synchronized void removeIntent(Object intent, String intentName) { |
| intentMap.remove(intentName); |
| } |
| |
| @SuppressWarnings("unchecked") |
| @Override |
| public synchronized void applyIntents(AbstractEndpointFactory factory, |
| Set<String> requiredIntents, |
| IntentHandler... handlers) |
| throws IntentUnsatisfiedException { |
| Set<String> missingIntents = getMissingIntents(requiredIntents); |
| if (!missingIntents.isEmpty()) { |
| throw new IntentUnsatisfiedException(missingIntents.iterator().next()); |
| } |
| List<IntentHandler> allHandlers = new ArrayList<IntentHandler>(); |
| allHandlers.add(new DefaultIntentsHandler()); |
| allHandlers.addAll(Arrays.asList(handlers)); |
| for (String intentName : requiredIntents) { |
| Object intent = intentMap.get(intentName); |
| if (intent instanceof Callable<?>) { |
| try { |
| List<Object> intents = ((Callable<List<Object>>)intent).call(); |
| applyIntents(factory, intentName, intents, allHandlers); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } else if (intent instanceof IntentProvider) { |
| applyIntents(factory, intentName, ((IntentProvider)intent).getIntents(), allHandlers); |
| } else { |
| applyIntent(factory, intentName, intent, allHandlers); |
| } |
| } |
| } |
| |
| private void applyIntents(AbstractEndpointFactory factory, |
| String intentName, |
| List<Object> intents, |
| List<IntentHandler> handlers) { |
| for (Object intent : intents) { |
| applyIntent(factory, intentName, intent, handlers); |
| } |
| |
| } |
| |
| private void applyIntent(AbstractEndpointFactory factory, String intentName, Object intent, |
| List<IntentHandler> handlers) { |
| for (IntentHandler handler : handlers) { |
| if (handler.apply(factory, intentName, intent)) { |
| return; |
| } |
| } |
| LOG.info("No mapping for intent: " + intentName); |
| throw new IntentUnsatisfiedException(intentName); |
| } |
| |
| public synchronized String[] assertAllIntentsSupported(Set<String> requiredIntents) { |
| long endTime = System.currentTimeMillis() + maxIntentWaitTime; |
| Set<String> unsupportedIntents; |
| boolean first = true; |
| do { |
| unsupportedIntents = getMissingIntents(requiredIntents); |
| long remainingSeconds = (endTime - System.currentTimeMillis()) / 1000; |
| if (!unsupportedIntents.isEmpty() && remainingSeconds > 0) { |
| String msg = "Waiting for custom intents {} timeout in {} seconds"; |
| if (first) { |
| LOG.info(msg, Arrays.toString(unsupportedIntents.toArray()), remainingSeconds); |
| first = false; |
| } else { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug(msg, Arrays.toString(unsupportedIntents.toArray()), remainingSeconds); |
| } |
| } |
| |
| try { |
| wait(1000); |
| } catch (InterruptedException e) { |
| LOG.warn(e.getMessage(), e); |
| } |
| } |
| } while (!unsupportedIntents.isEmpty() && System.currentTimeMillis() < endTime); |
| |
| if (!unsupportedIntents.isEmpty()) { |
| throw new RuntimeException("service cannot be exported because the following " |
| + "intents are not supported by this RSA: " + unsupportedIntents); |
| } |
| return requiredIntents.toArray(new String[]{}); |
| } |
| |
| private synchronized Set<String> getMissingIntents(Collection<String> requiredIntents) { |
| Set<String> unsupportedIntents = new HashSet<String>(); |
| unsupportedIntents.clear(); |
| for (String ri : requiredIntents) { |
| if (!intentMap.containsKey(ri)) { |
| unsupportedIntents.add(ri); |
| } |
| } |
| return unsupportedIntents; |
| } |
| |
| public Set<String> getExported(Map<String, Object> sd) { |
| Set<String> allIntents = new HashSet<String>(); |
| Collection<String> intents = OsgiUtils |
| .getMultiValueProperty(sd.get(RemoteConstants.SERVICE_EXPORTED_INTENTS)); |
| if (intents != null) { |
| allIntents.addAll(parseIntents(intents)); |
| } |
| Collection<String> intents2 = OsgiUtils |
| .getMultiValueProperty(sd.get(RemoteConstants.SERVICE_EXPORTED_INTENTS_EXTRA)); |
| if (intents2 != null) { |
| allIntents.addAll(parseIntents(intents2)); |
| } |
| return allIntents; |
| } |
| |
| public Set<String> getImported(Map<String, Object> sd) { |
| Collection<String> intents = OsgiUtils.getMultiValueProperty(sd.get(RemoteConstants.SERVICE_INTENTS)); |
| return intents == null ? new HashSet<String>() : new HashSet<String>(intents); |
| } |
| |
| private static Collection<String> parseIntents(Collection<String> intents) { |
| List<String> parsed = new ArrayList<String>(); |
| for (String intent : intents) { |
| parsed.addAll(Arrays.asList(intent.split("[ ]"))); |
| } |
| return parsed; |
| } |
| |
| } |