| /* |
| * 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.felix.dm.lambda.itest; |
| |
| import java.net.URL; |
| import java.util.Dictionary; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.felix.dm.ResourceHandler; |
| import org.apache.felix.dm.ResourceUtil; |
| import org.junit.Assert; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Filter; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceReference; |
| |
| /** |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| class ResourceProvider { |
| final URL[] m_resources; |
| final BundleContext m_context; |
| final Map<ResourceHandler, Filter> m_handlers = new HashMap<>(); |
| |
| ResourceProvider(BundleContext ctx, URL ... resources) { |
| m_context = ctx; |
| m_resources = resources; |
| } |
| |
| public void change() { |
| for (int i = 0; i < m_resources.length; i++) { |
| change(i); |
| } |
| } |
| |
| @SuppressWarnings({ "deprecation", "unchecked" }) |
| public void change(int resourceIndex) { |
| Map<ResourceHandler, Filter> handlers = new HashMap<>(); |
| synchronized (m_handlers) { |
| handlers.putAll(m_handlers); |
| } |
| for (Map.Entry<ResourceHandler, Filter> e : handlers.entrySet()) { |
| ResourceHandler handler = e.getKey(); |
| Filter filter = e.getValue(); |
| if (filter == null || filter.match((Dictionary<String, ? >)ResourceUtil.createProperties(m_resources[resourceIndex]))) { |
| handler.changed(m_resources[resourceIndex]); |
| } |
| } |
| } |
| |
| @SuppressWarnings({ "deprecation", "unchecked" }) |
| public void add(ResourceHandler handler, ServiceReference<ResourceHandler> ref) { |
| String filterString = (String) ref.getProperty("filter"); |
| Filter filter = null; |
| if (filterString != null) { |
| try { |
| filter = m_context.createFilter(filterString); |
| } |
| catch (InvalidSyntaxException e) { |
| Assert.fail("Could not create filter for resource handler: " + e); |
| return; |
| } |
| } |
| for (int i = 0; i < m_resources.length; i++) { |
| if (filter == null || filter.match((Dictionary<String, ? >) ResourceUtil.createProperties(m_resources[i]))) { |
| synchronized (m_handlers) { |
| m_handlers.put(handler, filter); |
| } |
| handler.added(m_resources[i]); |
| } |
| } |
| } |
| |
| public void remove(ResourceHandler handler, ServiceReference<ResourceHandler> ref) { |
| Filter filter; |
| synchronized (m_handlers) { |
| filter = (Filter) m_handlers.remove(handler); |
| } |
| if (filter != null) { |
| removeResources(handler, filter); |
| } |
| } |
| |
| @SuppressWarnings({ "deprecation", "unchecked" }) |
| private void removeResources(ResourceHandler handler, Filter filter) { |
| for (int i = 0; i < m_resources.length; i++) { |
| if (filter == null || filter.match((Dictionary<String, ? >)ResourceUtil.createProperties(m_resources[i]))) { |
| handler.removed(m_resources[i]); |
| } |
| } |
| } |
| |
| public void destroy() { |
| Map<ResourceHandler, Filter> handlers = new HashMap<>(); |
| synchronized (m_handlers) { |
| handlers.putAll(m_handlers); |
| } |
| |
| for (Map.Entry<ResourceHandler, Filter> e : handlers.entrySet()) { |
| ResourceHandler handler = e.getKey(); |
| Filter filter = e.getValue(); |
| removeResources(handler, filter); |
| } |
| } |
| } |