| package org.apache.commons.jcs.auxiliary.lateral.socket.udp; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.apache.commons.jcs.auxiliary.lateral.LateralCacheAttributes; |
| import org.apache.commons.jcs.auxiliary.lateral.LateralCacheInfo; |
| import org.apache.commons.jcs.auxiliary.lateral.LateralElementDescriptor; |
| import org.apache.commons.jcs.auxiliary.lateral.behavior.ICacheServiceNonLocal; |
| import org.apache.commons.jcs.auxiliary.lateral.behavior.ILateralCacheAttributes; |
| import org.apache.commons.jcs.auxiliary.lateral.behavior.ILateralCacheObserver; |
| import org.apache.commons.jcs.engine.CacheElement; |
| import org.apache.commons.jcs.engine.behavior.ICacheElement; |
| import org.apache.commons.jcs.engine.behavior.ICacheListener; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.Serializable; |
| import java.util.Set; |
| |
| public class LateralUDPService implements ICacheServiceNonLocal, ILateralCacheObserver |
| { |
| private static final Log log = |
| LogFactory.getLog( LateralUDPService.class ); |
| |
| private ILateralCacheAttributes ilca; |
| |
| private LateralUDPSender sender; |
| |
| /** |
| * Constructor for the LateralUDPService object |
| * |
| * @param lca |
| * @throws IOException |
| */ |
| public LateralUDPService( ILateralCacheAttributes lca ) |
| throws IOException |
| { |
| |
| this.ilca = lca; |
| |
| try |
| { |
| sender = new LateralUDPSender( lca ); |
| |
| } |
| catch ( IOException e ) |
| { |
| log.error( "Could not create sender", e ); |
| |
| throw e; |
| } |
| |
| } |
| |
| /** Description of the Method */ |
| public void update( ICacheElement<K, V> item ) |
| throws IOException |
| { |
| update( item, LateralCacheInfo.listenerId ); |
| } |
| |
| |
| /** Description of the Method */ |
| public void update( ICacheElement<K, V> item, long requesterId ) |
| throws IOException |
| { |
| LateralElementDescriptor led = new LateralElementDescriptor( item ); |
| led.requesterId = requesterId; |
| led.command = led.UPDATE; |
| sender.send( led ); |
| } |
| |
| |
| /** Description of the Method */ |
| public void remove( String cacheName, K key ) |
| throws IOException |
| { |
| remove( cacheName, key, LateralCacheInfo.listenerId ); |
| } |
| |
| |
| /** Description of the Method */ |
| public void remove( String cacheName, K key, long requesterId ) |
| throws IOException |
| { |
| CacheElement ce = new CacheElement( cacheName, key, null ); |
| LateralElementDescriptor led = new LateralElementDescriptor( ce ); |
| led.requesterId = requesterId; |
| led.command = led.REMOVE; |
| sender.send( led ); |
| } |
| |
| |
| /** Description of the Method */ |
| public void release() |
| throws IOException |
| { |
| // nothing needs to be done |
| } |
| |
| |
| /** Description of the Method */ |
| public void dispose( String cache ) |
| throws IOException |
| { |
| //sender = null; |
| // nothing needs to be done |
| } |
| |
| |
| /** Description of the Method */ |
| public Serializable get( String cache ) |
| throws IOException |
| { |
| return null; |
| // nothing needs to be done |
| } |
| |
| |
| /** Description of the Method */ |
| public ICacheElement<K, V> get( String cache, Serializable att ) |
| throws IOException |
| { |
| return null; |
| // nothing needs to be done |
| } |
| |
| |
| /** Description of the Method */ |
| public Serializable get( String cache, Serializable att, boolean container ) |
| throws IOException |
| { |
| return null; |
| // nothing needs to be done |
| } |
| |
| /** |
| * Gets the set of keys of objects currently in the group |
| * throws UnsupportedOperationException |
| */ |
| public Set<K> getGroupKeys(String cacheName, String group) |
| { |
| if (true) |
| { |
| throw new UnsupportedOperationException("Groups not implemented."); |
| } |
| return null; |
| } |
| |
| /** Description of the Method */ |
| public void removeAll( String cacheName ) |
| throws IOException |
| { |
| removeAll( cacheName, LateralCacheInfo.listenerId ); |
| } |
| |
| |
| /** Description of the Method */ |
| public void removeAll( String cacheName, long requesterId ) |
| throws IOException |
| { |
| CacheElement ce = new CacheElement( cacheName, "ALL", null ); |
| LateralElementDescriptor led = new LateralElementDescriptor( ce ); |
| led.requesterId = requesterId; |
| led.command = led.REMOVEALL; |
| sender.send( led ); |
| } |
| |
| |
| /** Description of the Method */ |
| public static void main( String args[] ) |
| { |
| try |
| { |
| LateralUDPSender sender = new LateralUDPSender( new LateralCacheAttributes() ); |
| |
| // process user input till done |
| boolean notDone = true; |
| String message = null; |
| // wait to dispose |
| BufferedReader br = new BufferedReader( new InputStreamReader( System.in ) ); |
| |
| while ( notDone ) |
| { |
| System.out.println( "enter mesage:" ); |
| message = br.readLine(); |
| CacheElement ce = new CacheElement( "test", "test", message ); |
| LateralElementDescriptor led = new LateralElementDescriptor( ce ); |
| sender.send( led ); |
| } |
| } |
| catch ( Exception e ) |
| { |
| System.out.println( e.toString() ); |
| } |
| } |
| |
| |
| // ILateralCacheObserver methods, do nothing here since |
| // the connection is not registered, the udp service is |
| // is not registered. |
| /** |
| * Adds a feature to the CacheListener attribute of the LateralUDPService |
| * object |
| * |
| * @param cacheName The feature to be added to the CacheListener attribute |
| * @param obj The feature to be added to the CacheListener attribute |
| */ |
| public void addCacheListener( String cacheName, ICacheListener obj ) |
| throws IOException { } |
| |
| |
| /** |
| * Adds a feature to the CacheListener attribute of the LateralUDPService |
| * object |
| * |
| * @param obj The feature to be added to the CacheListener attribute |
| */ |
| public void addCacheListener( ICacheListener obj ) |
| throws IOException { } |
| |
| |
| /** Description of the Method */ |
| public void removeCacheListener( String cacheName, ICacheListener obj ) |
| throws IOException { } |
| |
| |
| /** Description of the Method */ |
| public void removeCacheListener( ICacheListener obj ) |
| throws IOException { } |
| |
| } |
| // end class |
| |