| /* |
| * 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.ServiceReference; |
| import org.osgi.service.device.Constants; |
| import org.osgi.service.log.LogService; |
| |
| |
| /** |
| * TODO: add javadoc |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class DriverAnalyzer |
| { |
| |
| private LogService m_log; |
| |
| |
| /** |
| * used to analyze invalid drivers |
| * |
| * @param ref |
| */ |
| public void driverAdded( ServiceReference ref ) |
| { |
| Object driverId = ref.getProperty( Constants.DRIVER_ID ); |
| if ( driverId == null || !String.class.isInstance( driverId ) ) |
| { |
| m_log.log( LogService.LOG_ERROR, "invalid driver: no driver id: " + Util.showDriver( ref ) ); |
| return; |
| } |
| if ( String.class.isInstance( driverId ) ) |
| { |
| String value = (String)( driverId ); |
| if ( value.length() == 0 ) |
| { |
| m_log.log( LogService.LOG_ERROR, "invalid driver: empty driver id: " + Util.showDriver( ref ) ); |
| } |
| } |
| } |
| } |