engine-d/src/main/java/org/onap/holmes/engine/resources/EngineResources.java

   1 /**
   2  * Copyright 2017 ZTE Corporation.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.onap.holmes.engine.resources;
  17
  18
  19 import com.codahale.metrics.annotation.Timed;
  20 import io.swagger.annotations.Api;
  21 import io.swagger.annotations.ApiOperation;
  22 import java.util.Locale;
  23 import javax.inject.Inject;
  24 import javax.servlet.http.HttpServletRequest;
  25 import javax.ws.rs.DELETE;
  26 import javax.ws.rs.POST;
  27 import javax.ws.rs.PUT;
  28 import javax.ws.rs.Path;
  29 import javax.ws.rs.PathParam;
  30 import javax.ws.rs.Produces;
  31 import javax.ws.rs.core.Context;
  32 import javax.ws.rs.core.MediaType;
  33 import lombok.extern.slf4j.Slf4j;
  34 import org.jvnet.hk2.annotations.Service;
  35 import org.onap.holmes.common.exception.CorrelationException;
  36 import org.onap.holmes.common.utils.ExceptionUtil;
  37 import org.onap.holmes.common.utils.LanguageUtil;
  38 import org.onap.holmes.engine.manager.DroolsEngine;
  39 import org.onap.holmes.engine.request.CompileRuleRequest;
  40 import org.onap.holmes.engine.request.DeployRuleRequest;
  41 import org.onap.holmes.engine.response.CorrelationRuleResponse;
  42
  43 @Service
  44 @Path("/rule")
  45 @Api(tags = {"Engine Manager"})
  46 @Produces(MediaType.APPLICATION_JSON)
  47 @Slf4j
  48 public class EngineResources {
  49
  50     @Inject
  51     DroolsEngine droolsEngine;
  52
  53     @PUT
  54     @ApiOperation(value = "Add rule to Engine and Cache", response = CorrelationRuleResponse.class)
  55     @Produces(MediaType.APPLICATION_JSON)
  56     @Timed
  57     public CorrelationRuleResponse deployRule(DeployRuleRequest deployRuleRequest,
  58             @Context HttpServletRequest httpRequest) {
  59
  60         CorrelationRuleResponse crResponse = new CorrelationRuleResponse();
  61         Locale locale = LanguageUtil.getLocale(httpRequest);
  62         try {
  63
  64             String packageName = droolsEngine.deployRule(deployRuleRequest, locale);
  65             log.info("Rule deployed. Package name: " + packageName);
  66             crResponse.setPackageName(packageName);
  67
  68         } catch (CorrelationException correlationException) {
  69             log.error(correlationException.getMessage(), correlationException);
  70             throw ExceptionUtil.buildExceptionResponse(correlationException.getMessage());
  71         }
  72
  73         return crResponse;
  74     }
  75
  76     @DELETE
  77     @ApiOperation(value = "delete rule")
  78     @Produces(MediaType.APPLICATION_JSON)
  79     @Timed
  80     @Path("/{packageName}")
  81     public boolean undeployRule(@PathParam("packageName") String packageName,
  82             @Context HttpServletRequest httpRequest) {
  83
  84         Locale locale = LanguageUtil.getLocale(httpRequest);
  85
  86         try {
  87
  88             droolsEngine.undeployRule(packageName, locale);
  89
  90         } catch (CorrelationException correlationException) {
  91             log.error(correlationException.getMessage(), correlationException);
  92             throw ExceptionUtil.buildExceptionResponse(correlationException.getMessage());
  93         }
  94         return true;
  95     }
  96
  97
  98     @POST
  99     @ApiOperation(value = "compile rule")
 100     @Produces(MediaType.APPLICATION_JSON)
 101     @Timed
 102     public boolean compileRule(CompileRuleRequest compileRuleRequest,
 103             @Context HttpServletRequest httpRequest) {
 104
 105         Locale locale = LanguageUtil.getLocale(httpRequest);
 106
 107         try {
 108             droolsEngine.compileRule(compileRuleRequest.getContent(), locale);
 109         } catch (CorrelationException correlationException) {
 110             log.error(correlationException.getMessage(), correlationException);
 111             throw ExceptionUtil.buildExceptionResponse(correlationException.getMessage());
 112         }
 113         return true;
 114     }
 115 }