| /* |
| * Copyright 2009-2010 by The Regents of the University of California |
| * Licensed 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 from |
| * |
| * 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 edu.uci.ics.asterix.metadata.bootstrap; |
| |
| import java.rmi.RemoteException; |
| import java.rmi.server.UnicastRemoteObject; |
| import java.util.HashMap; |
| import java.util.logging.Logger; |
| |
| import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy; |
| import edu.uci.ics.asterix.metadata.api.IMetadataNode; |
| |
| /** |
| * Contains Asterix distributed state such as the AsterixProperties. |
| */ |
| public class AsterixStateProxy implements IAsterixStateProxy { |
| private static final long serialVersionUID = 1L; |
| private static final Logger LOGGER = Logger.getLogger(AsterixStateProxy.class.getName()); |
| |
| private IMetadataNode metadataNode; |
| private AsterixProperties asterixProperties; |
| private static final IAsterixStateProxy cc = new AsterixStateProxy(); |
| private final HashMap<String, Object> nodeStateMap = new HashMap<String, Object>(); |
| |
| public static IAsterixStateProxy registerRemoteObject() throws RemoteException { |
| IAsterixStateProxy stub = (IAsterixStateProxy) UnicastRemoteObject.exportObject(cc, 0); |
| LOGGER.info("Asterix Distributed State Proxy Bound"); |
| return stub; |
| } |
| |
| public static void unregisterRemoteObject() throws RemoteException { |
| UnicastRemoteObject.unexportObject(cc, true); |
| LOGGER.info("Asterix Distributed State Proxy Unbound"); |
| } |
| |
| @Override |
| public void setMetadataNode(IMetadataNode metadataNode) throws RemoteException { |
| this.metadataNode = metadataNode; |
| } |
| |
| @Override |
| public IMetadataNode getMetadataNode() throws RemoteException { |
| return this.metadataNode; |
| } |
| |
| @Override |
| public void setAsterixProperties(AsterixProperties asterixProperity) throws RemoteException { |
| this.asterixProperties = asterixProperity; |
| } |
| |
| @Override |
| public AsterixProperties getAsterixProperties() throws RemoteException { |
| return this.asterixProperties; |
| } |
| |
| @Override |
| synchronized public Object getAsterixNodeState(String nodeName) throws RemoteException { |
| return nodeStateMap.get(nodeName); |
| } |
| |
| @Override |
| synchronized public void setAsterixNodeState(String nodeName, Object ns) throws RemoteException { |
| nodeStateMap.put(nodeName, ns); |
| } |
| } |