| /* |
| * 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.das.util; |
| |
| |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Filter; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.device.Constants; |
| import org.osgi.service.device.Device; |
| import org.osgi.service.log.LogService; |
| |
| |
| /** |
| * TODO: add javadoc |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class DeviceAnalyzer |
| { |
| |
| private LogService m_log; |
| |
| private Filter deviceImpl; |
| |
| private Filter validCategory; |
| |
| private final BundleContext m_context; |
| |
| |
| public DeviceAnalyzer( BundleContext context ) |
| { |
| m_context = context; |
| } |
| |
| |
| @SuppressWarnings("unused") |
| private void start() throws InvalidSyntaxException |
| { |
| String deviceString = Util.createFilterString( "(%s=%s)", new Object[] |
| { org.osgi.framework.Constants.OBJECTCLASS, Device.class.getName() } ); |
| |
| deviceImpl = m_context.createFilter( deviceString ); |
| |
| String categoryString = Util.createFilterString( "(%s=%s)", new Object[] |
| { Constants.DEVICE_CATEGORY, "*" } ); |
| |
| validCategory = m_context.createFilter( categoryString ); |
| } |
| |
| |
| /** |
| * used to analyze invalid devices |
| * |
| * @param ref |
| */ |
| public void deviceAdded( ServiceReference ref ) |
| { |
| |
| if ( deviceImpl.match( ref ) ) |
| { |
| return; |
| } |
| if ( validCategory.match( ref ) ) |
| { |
| Object cat = ref.getProperty( Constants.DEVICE_CATEGORY ); |
| if ( !String[].class.isInstance( cat ) ) |
| { |
| m_log.log( LogService.LOG_ERROR, "invalid device: invalid device category: " + Util.showDevice( ref ) ); |
| return; |
| } |
| if ( String[].class.cast( cat ).length == 0 ) |
| { |
| m_log.log( LogService.LOG_ERROR, "invalid device: empty device category: " + Util.showDevice( ref ) ); |
| } |
| } |
| else |
| { |
| m_log.log( LogService.LOG_ERROR, "invalid device: no device category: " + Util.showDevice( ref ) ); |
| } |
| } |
| } |