| /* |
| * 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.karaf.jaas.modules.jdbc; |
| |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceReference; |
| |
| import javax.naming.InitialContext; |
| |
| /** |
| * @author iocanel |
| */ |
| public final class JDBCUtils { |
| |
| public static final String DATASOURCE = "datasource"; |
| public static final String JNDI = "jndi:"; |
| public static final String OSGI = "osgi:"; |
| |
| private JDBCUtils() { |
| |
| } |
| |
| /** |
| * Looks up a datasource from the url. The datasource can be passed either as jndi name or osgi ldap filter. |
| * |
| * @param url |
| * @return |
| * @throws Exception |
| */ |
| public static Object createDatasource(BundleContext bc, String url) throws Exception { |
| if (url == null) { |
| throw new Exception("Illegal datasource url format. Datasource URL cannot be null."); |
| } else if (url.trim().length() == 0) { |
| throw new Exception("Illegal datasource url format. Datasource URL cannot be empty."); |
| } else if (url.startsWith(JNDI)) { |
| String jndiName = url.substring(JNDI.length()); |
| InitialContext ic = new InitialContext(); |
| return ic.lookup(jndiName); |
| } else if (url.startsWith(OSGI)) { |
| String osgiFilter = url.substring(OSGI.length()); |
| String clazz = null; |
| String filter = null; |
| String[] tokens = osgiFilter.split("/", 2); |
| if (tokens != null) { |
| if (tokens.length > 0) { |
| clazz = tokens[0]; |
| } |
| if (tokens.length > 1) { |
| filter = tokens[1]; |
| } |
| } |
| ServiceReference[] references = bc.getServiceReferences(clazz, filter); |
| if (references != null) { |
| ServiceReference ref = references[0]; |
| Object ds = bc.getService(ref); |
| bc.ungetService(ref); |
| return ds; |
| } else { |
| throw new Exception("Unable to find service reference for datasource: " + clazz + "/" + filter); |
| } |
| } else { |
| throw new Exception("Illegal datasource url format"); |
| } |
| } |
| } |