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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.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
public class ConvertQueryPropertiesToJson {
private static final int MAX_FILE_SIZE = 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<>();
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(MAX_FILE_SIZE);
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();
}
}
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