runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/DefaultAgentFactory.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.core.execution;
  17
  18 import java.util.HashMap;
  19 import java.util.List;
  20 import java.util.Map;
  21
  22 import org.apache.commons.logging.Log;
  23 import org.apache.commons.logging.LogFactory;
  24 import org.argeo.slc.runtime.SlcAgent;
  25 import org.argeo.slc.runtime.SlcAgentFactory;
  26
  27 /** Register agents (typically via OSGi listeners) */
  28 public class DefaultAgentFactory implements SlcAgentFactory {
  29         private final static Log log = LogFactory.getLog(DefaultAgentFactory.class);
  30
  31         private Map<String, SlcAgent> agents = new HashMap<String, SlcAgent>();
  32
  33         public SlcAgent getAgent(String uuid) {
  34                 if (agents.containsKey(uuid))
  35                         return agents.get(uuid);
  36                 else
  37                         return null;
  38         }
  39
  40         public void pingAll(List<String> activeAgentIds) {
  41                 for (SlcAgent agent : agents.values())
  42                         agent.ping();
  43         }
  44
  45         public synchronized void register(SlcAgent agent,
  46                         Map<String, String> properties) {
  47                 agents.put(agent.getAgentUuid(), agent);
  48                 if (log.isDebugEnabled())
  49                         log.debug("Agent " + agent.getAgentUuid() + " registered");
  50         }
  51
  52         public synchronized void unregister(SlcAgent agent,
  53                         Map<String, String> properties) {
  54                 agents.remove(agent.getAgentUuid());
  55                 if (log.isDebugEnabled())
  56                         log.debug("Agent " + agent.getAgentUuid() + " unregistered");
  57         }
  58
  59 }