/**
* 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.HashMap;
import java.util.Map;
import javax.ws.rs.GET;
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;
/**
* Endpoint for alert data.
*/
public class AlertService extends BaseService {
private String clusterName = null;
private String serviceName = null;
private String hostName = null;
AlertService(String clusterName, String serviceName, String hostName) {
this.clusterName = clusterName;
this.serviceName = serviceName;
this.hostName = hostName;
}
/**
* Gets all the definitions for the target
*/
@GET
@Produces("text/plain")
public Response getAlerts(
@Context HttpHeaders headers,
@Context UriInfo ui) {
return handleRequest(headers, null, ui, Request.Type.GET,
createResourceInstance(null));
}
/**
* Gets a specific alert's instance
*/
@GET
@Path("{alertId}")
@Produces("text/plain")
public Response getAlert(
@Context HttpHeaders headers,
@Context UriInfo ui,
@PathParam("alertId") Long id) {
return handleRequest(headers, null, ui, Request.Type.GET,
createResourceInstance(id));
}
/**
* Create an alert resource instance
* @param alertId the alert id, if requesting a specific one
* @return the resource instance
*/
private ResourceInstance createResourceInstance(Long alertId) {
Map<Resource.Type, String> mapIds = new HashMap<>();
mapIds.put(Resource.Type.Cluster, clusterName);
mapIds.put(Resource.Type.Service, serviceName);
mapIds.put(Resource.Type.Host, hostName);
mapIds.put(Resource.Type.Alert, null == alertId ? null : alertId.toString());
return createResource(Resource.Type.Alert, mapIds);
}
}