/**
* 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.util.Collections;
import javax.ws.rs.DELETE;
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.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import org.apache.ambari.server.api.resources.ResourceInstance;
import org.apache.ambari.server.controller.spi.Resource;
/**
* Service responsible for setting resource requests.
*/
@Path("/settings/")
public class SettingService extends BaseService {
/**
* Construct a SettingService.
*/
public SettingService() {
}
/**
* Handles: GET /settings
* Get all clusters.
*
* @param headers http headers
* @param ui uri info
*
* @return setting collection resource representation
*/
@GET
@Produces("text/plain")
public Response getSettings(String body, @Context HttpHeaders headers, @Context UriInfo ui) {
return handleRequest(headers, body, ui, Request.Type.GET, createSettingResource(null));
}
/**
* Handles: GET /settings/{settingName}
* Get a specific setting.
*
* @param headers http headers
* @param ui uri info
* @param settingName settingName
*
* @return setting instance representation
*/
@GET
@Path("{settingName}")
@Produces("text/plain")
public Response getSetting(String body, @Context HttpHeaders headers, @Context UriInfo ui,
@PathParam("settingName") String settingName) {
return handleRequest(headers, body, ui, Request.Type.GET, createSettingResource(settingName));
}
/**
* Handles: POST /settings/{settingName}
* Create a specific setting.
*
* @param headers http headers
* @param ui uri info
*
* @return information regarding the created setting
*/
@POST
@Produces("text/plain")
public Response createSetting(String body, @Context HttpHeaders headers, @Context UriInfo ui) {
return handleRequest(headers, body, ui, Request.Type.POST, createSettingResource(null));
}
/**
* Handles: PUT /settings/{settingName}
* Update a specific setting.
*
* @param headers http headers
* @param ui uri info
* @param settingName setting name
*
* @return information regarding the updated setting
*/
@PUT
@Path("{settingName}")
@Produces("text/plain")
public Response updateSetting(String body, @Context HttpHeaders headers, @Context UriInfo ui,
@PathParam("settingName") String settingName) {
return handleRequest(headers, body, ui, Request.Type.PUT, createSettingResource(settingName));
}
/**
* Handles: DELETE /settings/{settingName}
* Delete a specific setting.
*
* @param headers http headers
* @param ui uri info
* @param settingName setting name
*
* @return information regarding the deleted setting
*/
@DELETE
@Path("{settingName}")
@Produces("text/plain")
public Response deleteSetting(@Context HttpHeaders headers, @Context UriInfo ui,
@PathParam("settingName") String settingName) {
return handleRequest(headers, null, ui, Request.Type.DELETE, createSettingResource(settingName));
}
// ----- helper methods ----------------------------------------------------
/**
* Create a setting resource instance.
*
* @param settingName setting name
*
* @return a setting resource instance
*/
ResourceInstance createSettingResource(String settingName) {
return createResource(Resource.Type.Setting,
Collections.singletonMap(Resource.Type.Setting, settingName));
}
}