| /** |
| * 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.ambari.server.api.services; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Map; |
| |
| import javax.ws.rs.GET; |
| import javax.ws.rs.POST; |
| import javax.ws.rs.PUT; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.PathParam; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.WebApplicationException; |
| import javax.ws.rs.core.Response; |
| import javax.xml.bind.JAXBException; |
| |
| import org.apache.ambari.server.state.fsm.InvalidStateTransitionException; |
| import org.apache.ambari.server.utils.StageUtils; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import com.google.inject.Inject; |
| |
| @Path("/persist/") |
| public class PersistKeyValueService { |
| private static PersistKeyValueImpl persistKeyVal; |
| private static Log LOG = LogFactory.getLog(PersistKeyValueService.class); |
| |
| @Inject |
| public static void init(PersistKeyValueImpl instance) { |
| persistKeyVal = instance; |
| } |
| |
| @SuppressWarnings("unchecked") |
| @POST |
| @Produces("text/plain") |
| public Response update(String keyValues) |
| throws WebApplicationException, InvalidStateTransitionException, |
| JAXBException, IOException { |
| LOG.debug("Received message from UI " + keyValues); |
| Map<String, String> keyValuesMap = StageUtils.fromJson(keyValues, Map.class); |
| /* Call into the heartbeat handler */ |
| |
| for (Map.Entry<String, String> keyValue: keyValuesMap.entrySet()) { |
| persistKeyVal.put(keyValue.getKey(), keyValue.getValue()); |
| } |
| return Response.status(Response.Status.ACCEPTED).build(); |
| } |
| |
| @SuppressWarnings("unchecked") |
| @PUT |
| @Produces("text/plain") |
| public String store(String values) throws IOException, JAXBException { |
| LOG.debug("Received message from UI " + values); |
| Collection<String> valueCollection = StageUtils.fromJson(values, Collection.class); |
| Collection<String> keys = new ArrayList<String>(valueCollection.size()); |
| for (String s : valueCollection) { |
| keys.add(persistKeyVal.put(s)); |
| } |
| String stringRet = StageUtils.jaxbToString(keys); |
| LOG.debug("Returning " + stringRet); |
| return stringRet; |
| } |
| |
| @GET |
| @Produces("text/plain") |
| @Path("{keyName}") |
| public String getKey( @PathParam("keyName") String keyName) { |
| LOG.debug("Looking for keyName " + keyName); |
| return persistKeyVal.getValue(keyName); |
| } |
| |
| @GET |
| @Produces("text/plain") |
| public String getAllKeyValues() throws JAXBException, IOException { |
| Map<String, String> ret = persistKeyVal.getAllKeyValues(); |
| String stringRet = StageUtils.jaxbToString(ret); |
| LOG.debug("Returning " + stringRet); |
| return stringRet; |
| } |
| } |