/*
* Copyright 2011 Future Systems
*
* 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.krakenapps.logdb.query.parser;
import static org.krakenapps.bnf.Syntax.k;
import static org.krakenapps.bnf.Syntax.ref;
import java.util.Arrays;
import java.util.Map;
import org.krakenapps.bnf.Binding;
import org.krakenapps.bnf.Syntax;
import org.krakenapps.logdb.LogQueryParser;
import org.krakenapps.logdb.query.command.Search;
import org.krakenapps.logdb.query.command.Term;
public class SearchParser implements LogQueryParser {
@Override
public void addSyntax(Syntax syntax) {
syntax.add("search", this, k("search "), ref("option"), ref("term"));
syntax.addRoot("search");
}
@SuppressWarnings("unchecked")
@Override
public Object parse(Binding b) {
Map<String, String> option = (Map<String, String>) b.getChildren()[1].getValue();
Integer limit = null;
if (option.containsKey("limit"))
limit = Integer.parseInt(option.get("limit"));
// List<Term> terms = (List<Term>) b.getChildren()[2].getValue();
Term term = (Term) b.getChildren()[2].getValue();
return new Search(limit, Arrays.asList(term));
}
}