1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/**
* Copyright 2017 ZTE Corporation.
*
* Licensed 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.onap.holmes.engine.resources;
import com.codahale.metrics.annotation.Timed;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.StringReader;
import java.util.Locale;
import javax.inject.Inject;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.DELETE;
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.MediaType;
import lombok.extern.slf4j.Slf4j;
import org.jvnet.hk2.annotations.Service;
import org.onap.holmes.common.dmaap.DmaapService;
import org.onap.holmes.common.exception.CorrelationException;
import org.onap.holmes.common.utils.ExceptionUtil;
import org.onap.holmes.common.utils.LanguageUtil;
import org.onap.holmes.engine.manager.DroolsEngine;
import org.onap.holmes.engine.request.CompileRuleRequest;
import org.onap.holmes.engine.request.DeployRuleRequest;
import org.onap.holmes.engine.response.CorrelationRuleResponse;
@Service
@Path("/rule")
@Api(tags = {"Holmes Engine Management"})
@Produces(MediaType.APPLICATION_JSON)
@Slf4j
public class EngineResources {
@Inject
DroolsEngine droolsEngine;
@PUT
@ApiOperation(value = "Deploy a rule into the Drools engine.", response = CorrelationRuleResponse.class)
@Produces(MediaType.APPLICATION_JSON)
@Timed
public CorrelationRuleResponse deployRule(
@ApiParam(value = "The request entity of the HTTP call, which comprises three "
+ "fields: \"content\" , \"loopcontrolname\" and \"engineid\". "
+ "The \"content\" should be a valid Drools rule string and the \"engineid\" "
+ "has to be \"engine-d\" in the Amsterdam release.", required = true) DeployRuleRequest deployRuleRequest,
@Context HttpServletRequest httpRequest) {
CorrelationRuleResponse crResponse = new CorrelationRuleResponse();
Locale locale = LanguageUtil.getLocale(httpRequest);
try {
String packageName = getPackageName(deployRuleRequest.getContent());
DmaapService.loopControlNames
.put(packageName, deployRuleRequest.getLoopControlName());
String packageNameRet = droolsEngine.deployRule(deployRuleRequest, locale);
if (!packageName.equals(packageNameRet)) {
log.info("The parsed package name is different from that returned by the engine.");
DmaapService.loopControlNames.remove(packageName);
DmaapService.loopControlNames
.put(packageNameRet, deployRuleRequest.getLoopControlName());
}
log.info("Rule deployed. Package name: " + packageName);
crResponse.setPackageName(packageName);
} catch (CorrelationException correlationException) {
log.error(correlationException.getMessage(), correlationException);
throw ExceptionUtil.buildExceptionResponse(correlationException.getMessage());
} catch (RuntimeException e) {
log.error(e.getMessage(), e);
throw ExceptionUtil.buildExceptionResponse(e.getMessage());
}
return crResponse;
}
@DELETE
@ApiOperation(value = "Undeploy a rule from the Drools engine.")
@Produces(MediaType.APPLICATION_JSON)
@Timed
@Path("/{packageName}")
public boolean undeployRule(@PathParam("packageName") String packageName,
@Context HttpServletRequest httpRequest) {
Locale locale = LanguageUtil.getLocale(httpRequest);
try {
droolsEngine.undeployRule(packageName, locale);
DmaapService.loopControlNames.remove(packageName);
} catch (CorrelationException correlationException) {
log.error(correlationException.getMessage(), correlationException);
throw ExceptionUtil.buildExceptionResponse(correlationException.getMessage());
}
return true;
}
@POST
@ApiOperation(value = "Check the validity of a rule.")
@Produces(MediaType.APPLICATION_JSON)
@Timed
public boolean compileRule(CompileRuleRequest compileRuleRequest,
@Context HttpServletRequest httpRequest) {
Locale locale = LanguageUtil.getLocale(httpRequest);
try {
droolsEngine.compileRule(compileRuleRequest.getContent(), locale);
} catch (CorrelationException correlationException) {
log.error(correlationException.getMessage(), correlationException);
throw ExceptionUtil.buildExceptionResponse(correlationException.getMessage());
}
return true;
}
private String getPackageName(String contents){
String ret = contents.trim();
ret = ret.substring(7, ret.indexOf("import")).trim();
return ret.endsWith(";") ? ret.substring(0, ret.length() - 1) : ret;
}
}
|
