/**
* 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 org.codehaus.jackson.JsonNode;
import org.sindice.siren.qparser.json.ParseException;
/**
* Abstract class that parses a query expression property and returns a string
* containing the expression.
*/
public abstract class BooleanExpressionPropertyParser extends JsonPropertyParser {
public BooleanExpressionPropertyParser(final JsonNode node, final CharSequence field) {
super(node, field);
}
@Override
String parse() throws ParseException {
final JsonNode value = node.path(this.getProperty());
if (!value.isTextual()) {
throw new ParseException("Invalid property '" + this.getProperty() + "': value is not textual");
}
return value.asText();
}
}