| /** |
| * 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.activemq.jndi; |
| |
| import java.io.Externalizable; |
| import java.io.IOException; |
| import java.io.ObjectInput; |
| import java.io.ObjectOutput; |
| import java.util.Properties; |
| |
| import javax.naming.NamingException; |
| import javax.naming.Reference; |
| |
| /** |
| * Facilitates objects to be stored in JNDI as properties |
| */ |
| |
| public abstract class JNDIBaseStorable implements JNDIStorableInterface, Externalizable { |
| |
| private Properties properties; |
| |
| /** |
| * Set the properties that will represent the instance in JNDI |
| * |
| * @param props |
| */ |
| protected abstract void buildFromProperties(Properties props); |
| |
| /** |
| * Initialize the instance from properties stored in JNDI |
| * |
| * @param props |
| */ |
| |
| protected abstract void populateProperties(Properties props); |
| |
| /** |
| * set the properties for this instance as retrieved from JNDI |
| * |
| * @param props |
| */ |
| |
| public synchronized void setProperties(Properties props) { |
| this.properties = props; |
| buildFromProperties(props); |
| } |
| |
| /** |
| * Get the properties from this instance for storing in JNDI |
| * |
| * @return the properties |
| */ |
| |
| public synchronized Properties getProperties() { |
| if (this.properties == null) { |
| this.properties = new Properties(); |
| } |
| populateProperties(this.properties); |
| return this.properties; |
| } |
| |
| /** |
| * Retrive a Reference for this instance to store in JNDI |
| * |
| * @return the built Reference |
| * @throws NamingException if error on building Reference |
| */ |
| public Reference getReference() throws NamingException { |
| return JNDIReferenceFactory.createReference(this.getClass().getName(), this); |
| } |
| |
| /** |
| * @param in |
| * @throws IOException |
| * @throws ClassNotFoundException |
| * @see java.io.Externalizable#readExternal(java.io.ObjectInput) |
| */ |
| public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { |
| Properties props = (Properties)in.readObject(); |
| if (props != null) { |
| setProperties(props); |
| } |
| |
| } |
| |
| /** |
| * @param out |
| * @throws IOException |
| * @see java.io.Externalizable#writeExternal(java.io.ObjectOutput) |
| */ |
| public void writeExternal(ObjectOutput out) throws IOException { |
| out.writeObject(getProperties()); |
| |
| } |
| |
| } |