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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.aai.rest.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import org.onap.aai.util.AAIConstants;
public class ConvertQueryPropertiesToJson {
private static final int maxfilesize = 256000;
private void addStart(StringBuilder sb) {
sb.append("{\n \"stored-queries\":[{\n");
}
private void addRequiredQueryProperties(StringBuilder sb, List<String> rqd) {
Iterator it = rqd.iterator();
sb.append(" \"query\":{\n \"required-properties\":[");
while (it.hasNext()) {
sb.append("\"" + it.next() + "\"");
if (it.hasNext()) {
sb.append(",");
}
}
sb.append("]\n },\n");
}
private void addAnotherQuery(StringBuilder sb, String queryName, String query, List<String> rqd) {
sb.append(" \"" + queryName + "\":{\n");
if (!rqd.isEmpty()) {
addRequiredQueryProperties(sb, rqd);
}
sb.append(" \"stored-query\":\"" + query + "\"\n }\n },{\n");
}
private void addLastQuery(StringBuilder sb, String queryName, String query, List<String> rqd) {
sb.append(" \"" + queryName + "\":{\n");
if (!rqd.isEmpty()) {
addRequiredQueryProperties(sb, rqd);
}
sb.append(" \"stored-query\":\"" + query + "\"\n }\n }]\n}\n");
}
private String get2ndParameter(String paramString) {
String endParams = paramString.substring(0, paramString.indexOf(')'));
String result = endParams.substring(endParams.indexOf(',') + 1);
String lastParam = result.trim();
if (lastParam.startsWith("\\") || lastParam.startsWith("'") || lastParam.startsWith("new ")) {
return null;
}
return lastParam;
}
private List<String> findRqdProperties(String query) {
String[] parts = query.split("getVerticesByProperty");
List<String> result = new ArrayList<String>();
if (parts.length == 1) {
return result;
}
int count = 0;
String foundRqdProperty;
while (count++ < parts.length - 1) {
foundRqdProperty = get2ndParameter(parts[count]);
if (foundRqdProperty != null && !result.contains(foundRqdProperty)) {
result.add(foundRqdProperty);
}
}
return result;
}
public String convertProperties(Properties props) {
Enumeration<?> e = props.propertyNames();
StringBuilder sb = new StringBuilder(maxfilesize);
String queryName;
String query;
addStart(sb);
List<String> rqd;
while (e.hasMoreElements()) {
queryName = (String) e.nextElement();
query = props.getProperty(queryName).trim().replace("\"", "\\\"");
rqd = findRqdProperties(query);
if (e.hasMoreElements()) {
addAnotherQuery(sb, queryName, query, rqd);
} else {
addLastQuery(sb, queryName, query, rqd);
}
}
return sb.toString();
}
public static void main(String[] args) {
File queryFile = new File(AAIConstants.AAI_HOME_ETC_QUERY);
Properties properties = new Properties();
try (FileInputStream fis = new FileInputStream(queryFile)) {
properties.load(fis);
} catch (IOException e) {
e.printStackTrace();
System.out.println("Error occurred during the processing of query file: " + e);
}
ConvertQueryPropertiesToJson c = new ConvertQueryPropertiesToJson();
String json = c.convertProperties(properties);
System.out.println("returned json:\n" + json);
}
}
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