175 lines
7.3 KiB
Java
175 lines
7.3 KiB
Java
/*
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* Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package monasca.api.resource;
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import java.net.URI;
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import java.util.List;
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import java.util.Map;
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import javax.inject.Inject;
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import javax.validation.Valid;
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import javax.ws.rs.Consumes;
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import javax.ws.rs.DELETE;
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import javax.ws.rs.GET;
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import javax.ws.rs.HeaderParam;
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import javax.ws.rs.POST;
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import javax.ws.rs.PUT;
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import javax.ws.rs.Path;
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import javax.ws.rs.PathParam;
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import javax.ws.rs.Produces;
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import javax.ws.rs.QueryParam;
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import javax.ws.rs.core.Context;
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import javax.ws.rs.core.MediaType;
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import javax.ws.rs.core.Response;
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import javax.ws.rs.core.UriInfo;
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import org.hibernate.validator.constraints.NotEmpty;
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import com.codahale.metrics.annotation.Timed;
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import com.fasterxml.jackson.databind.JsonMappingException;
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import com.google.common.base.Strings;
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import monasca.api.app.AlarmDefinitionService;
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import monasca.api.app.command.CreateAlarmDefinitionCommand;
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import monasca.api.app.command.UpdateAlarmDefinitionCommand;
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import monasca.api.app.validation.AlarmValidation;
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import monasca.api.app.validation.Validation;
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import com.hpcloud.mon.common.model.alarm.AlarmExpression;
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import com.hpcloud.mon.common.model.alarm.AlarmState;
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import monasca.api.domain.model.alarmdefinition.AlarmDefinition;
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import monasca.api.domain.model.alarmdefinition.AlarmDefinitionRepository;
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import monasca.api.resource.annotation.PATCH;
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import com.wordnik.swagger.annotations.Api;
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import com.wordnik.swagger.annotations.ApiOperation;
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import com.wordnik.swagger.annotations.ApiParam;
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import com.wordnik.swagger.annotations.ApiResponse;
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import com.wordnik.swagger.annotations.ApiResponses;
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/**
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* Alarm definition resource implementation.
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*/
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@Path("/v2.0/alarm-definitions")
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@Api(value = "/v2.0/alarm-definitions",
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description = "Operations for working with alarm definitions")
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public class AlarmDefinitionResource {
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private final AlarmDefinitionService service;
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private final AlarmDefinitionRepository repo;
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@Inject
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public AlarmDefinitionResource(AlarmDefinitionService service, AlarmDefinitionRepository repo) {
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this.service = service;
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this.repo = repo;
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}
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@POST
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@Timed
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@Consumes(MediaType.APPLICATION_JSON)
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@Produces(MediaType.APPLICATION_JSON)
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@ApiOperation(value = "Create alarm definition", response = AlarmDefinition.class)
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public Response create(@Context UriInfo uriInfo, @HeaderParam("X-Tenant-Id") String tenantId,
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@Valid CreateAlarmDefinitionCommand command) {
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command.validate();
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AlarmExpression alarmExpression = AlarmValidation.validateNormalizeAndGet(command.expression);
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AlarmDefinition alarm =
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Links.hydrate(service.create(tenantId, command.name, command.description, command.severity,
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command.expression, alarmExpression, command.matchBy, command.alarmActions,
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command.okActions, command.undeterminedActions), uriInfo, false);
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return Response.created(URI.create(alarm.getId())).entity(alarm).build();
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}
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@GET
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@Timed
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@Produces(MediaType.APPLICATION_JSON)
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@ApiOperation(value = "List alarm definitions", response = AlarmDefinition.class,
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responseContainer = "List")
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public List<AlarmDefinition> list(@Context UriInfo uriInfo,
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@HeaderParam("X-Tenant-Id") String tenantId, @QueryParam("name") String name,
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@QueryParam("dimensions") String dimensionsStr) {
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Map<String, String> dimensions =
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Strings.isNullOrEmpty(dimensionsStr) ? null : Validation
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.parseAndValidateDimensions(dimensionsStr);
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return Links.hydrate(repo.find(tenantId, name, dimensions), uriInfo);
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}
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@GET
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@Timed
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@Path("/{alarm_definition_id}")
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@Produces(MediaType.APPLICATION_JSON)
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@ApiOperation(value = "Get alarm definition", response = AlarmDefinition.class)
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@ApiResponses(value = {@ApiResponse(code = 400, message = "Invalid ID supplied"),
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@ApiResponse(code = 404, message = "Alarm definition not found")})
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public AlarmDefinition get(
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@ApiParam(value = "ID of alarm definition to fetch", required = true) @Context UriInfo uriInfo,
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@HeaderParam("X-Tenant-Id") String tenantId,
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@PathParam("alarm_definition_id") String alarmDefinitionId) {
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return Links.hydrate(repo.findById(tenantId, alarmDefinitionId), uriInfo, true);
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}
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@PUT
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@Timed
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@Path("/{alarm_definition_id}")
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@Consumes(MediaType.APPLICATION_JSON)
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@Produces(MediaType.APPLICATION_JSON)
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@ApiOperation(value = "Update alarm definition", response = AlarmDefinition.class)
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public AlarmDefinition update(@Context UriInfo uriInfo,
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@HeaderParam("X-Tenant-Id") String tenantId,
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@PathParam("alarm_definition_id") String alarmDefinitionId,
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@Valid UpdateAlarmDefinitionCommand command) {
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command.validate();
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AlarmExpression alarmExpression = AlarmValidation.validateNormalizeAndGet(command.expression);
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return Links.hydrate(service.update(tenantId, alarmDefinitionId, alarmExpression, command),
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uriInfo, true);
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}
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@PATCH
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@Timed
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@Path("/{alarm_definition_id}")
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@Consumes("application/json-patch+json")
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@Produces(MediaType.APPLICATION_JSON)
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@SuppressWarnings("unchecked")
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public AlarmDefinition patch(@Context UriInfo uriInfo,
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@HeaderParam("X-Tenant-Id") String tenantId,
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@PathParam("alarm_definition_id") String alarmDefinitionId,
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@NotEmpty Map<String, Object> fields) throws JsonMappingException {
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String name = (String) fields.get("name");
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String description = (String) fields.get("description");
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String severity = (String) fields.get("severity");
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String expression = (String) fields.get("expression");
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List<String> matchBy = (List<String>) fields.get("match_by");
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String stateStr = (String) fields.get("state");
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AlarmState state =
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stateStr == null ? null : Validation.parseAndValidate(AlarmState.class, stateStr);
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Boolean enabled = (Boolean) fields.get("actions_enabled");
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List<String> alarmActions = (List<String>) fields.get("alarm_actions");
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List<String> okActions = (List<String>) fields.get("ok_actions");
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List<String> undeterminedActions = (List<String>) fields.get("undetermined_actions");
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AlarmValidation.validate(name, description, severity, alarmActions, okActions,
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undeterminedActions);
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AlarmExpression alarmExpression =
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expression == null ? null : AlarmValidation.validateNormalizeAndGet(expression);
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return Links.hydrate(service.patch(tenantId, alarmDefinitionId, name, description, severity,
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expression, alarmExpression, matchBy, state, enabled, alarmActions, okActions,
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undeterminedActions), uriInfo, true);
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}
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@DELETE
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@Timed
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@Path("/{alarm_definition_id}")
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@ApiOperation(value = "Delete alarm definition")
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public void delete(@HeaderParam("X-Tenant-Id") String tenantId,
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@PathParam("alarm_definition_id") String alarmDefinitionId) {
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service.delete(tenantId, alarmDefinitionId);
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}
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}
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