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
|
/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
package org.onap.sdnc.dg.loader;
import java.io.File;
import java.security.InvalidParameterException;
import java.util.ArrayList;
import java.util.List;
import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DGXMLGenerator {
private final static Logger logger = LoggerFactory.getLogger(DGXMLGenerator.class);
public static final String STRING_ENCODING = "utf-8";
public static final String JS_INTERFACE_DG_CONVERTOR = "dgconverter";
public static final String JS_METHOD_GET_NODE_TO_XML = "getNodeToXml";
public static final String GENERATOR_TEMPLATE_FILE = "js/dg_xml2json.js";
public void generateXMLFromJSON(String jsonPath, String xmlpath, String propertyPath)
throws InvalidParameterException {
try {
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("JavaScript");
if (!(engine instanceof Invocable)) {
logger.error("Invoking methods is not supported.");
return;
}
Invocable inv = (Invocable) engine;
// engine.eval(new
// FileReader(DGXMLGenerator.class.getClassLoader().getResource(GENERATOR_TEMPLATE_FILE).getPath()));
String js = IOUtils.toString(DGXMLGenerator.class.getClassLoader()
.getResourceAsStream(GENERATOR_TEMPLATE_FILE), STRING_ENCODING);
engine.eval(js);
Object dgconverter = engine.get(JS_INTERFACE_DG_CONVERTOR);
List<File> files = new ArrayList<File>();
if (dgconverter != null) {
File jsonPathFile = new File(jsonPath);
if (jsonPathFile.isDirectory()) {
String[] extensions = new String[] {"json", "JSON"};
files = (List<File>) FileUtils.listFiles(jsonPathFile, extensions, true);
} else if (jsonPathFile.isFile()) {
files.add(jsonPathFile);
} else {
throw new InvalidParameterException("Failed to get the nature of the JSON path :" + jsonPath);
}
logger.info("JSON Files identified " + files.size());
if (files.size() > 0) {
boolean isXmlPathDeleted = FileUtils.deleteQuietly(new File(xmlpath));
logger.info("Cleaning old DG XML under : " + xmlpath + ", delete status :"
+ isXmlPathDeleted);
for (File file : files) {
String dgJson = FileUtils.readFileToString(file, STRING_ENCODING);
logger.info("Generating XML from :" + file.getName());
String xmlFileName =
xmlpath + "/" + file.getName().replace(".json", ".xml");
Object dgXMl =
inv.invokeMethod(dgconverter, JS_METHOD_GET_NODE_TO_XML, dgJson);
// Write the XML File
if (dgXMl != null) {
File xmlFile = new File(xmlFileName);
FileUtils.writeStringToFile(xmlFile, dgXMl.toString(), STRING_ENCODING);
logger.info("Generated XML File under :" + xmlFile.getCanonicalPath());
}
}
} else {
logger.info("No JSON Files to generate XML");
}
} else {
logger.error("Couldn't get Java Script Engine..");
}
} catch (Exception e) {
logger.error("Failed to generate generateXMLFromJSON :" + e.getMessage());
}
}
public static void main(String[] args) {
try {
DGXMLGenerator application = new DGXMLGenerator();
String jsonPath = null;
String xmlPath = null;
String propertyPath = null;
// Generate, GenerateLoad, GenerateLoadActivate
// args = new String[]{"src/main/resources/json","src/test/resources/xml"};
logger.info("DGXML Conversion Started with arguments :" + args[0] + ":" + args[1]);
if (args != null && args.length >= 2) {
jsonPath = args[0];
xmlPath = args[1];
} else {
throw new InvalidParameterException("Required inputs are missing <jsonPath> <xmlPath>");
}
application.generateXMLFromJSON(jsonPath, xmlPath, propertyPath);
logger.info("DGXML Conversion Completed...");
} catch (Exception e) {
logger.error("Failed in DG XML Generation :" + e.getMessage());
e.printStackTrace();
}
}
}
|
