/**
* Copyright 2014 National University of Ireland, Galway.
*
* This file is part of the SIREn project. Project and contact information:
*
* https://github.com/rdelbru/SIREn
*
* 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.sindice.siren.qparser.json.parser;
import java.util.Iterator;
import org.codehaus.jackson.JsonNode;
import org.sindice.siren.qparser.json.ParseException;
/**
* Parses a <code>range</code> property and returns an array of integers.
*/
public class RangePropertyParser extends JsonPropertyParser {
public static final String RANGE_PROPERTY = "range";
RangePropertyParser(final JsonNode node, final CharSequence field) {
super(node, field);
}
@Override
String getProperty() {
return RANGE_PROPERTY;
}
@Override
int[] parse() throws ParseException {
final int[] range = new int[2];
final JsonNode value = node.path(RANGE_PROPERTY);
if (!(value.isArray() && (value.size() == 2))) {
throw new ParseException("Invalid value for property '" + RANGE_PROPERTY + "'");
}
final Iterator<JsonNode> it = value.iterator();
JsonNode e;
for (int i = 0; i < 2; i++) {
e = it.next();
if (!e.isInt()) {
throw new ParseException("Invalid property '" + RANGE_PROPERTY + "': range value is not an integer");
}
range[i] = e.asInt();
}
return range;
}
}