org.graylog.plugins.views.search.validation.CollectingQueryParserTokenManager Maven / Gradle / Ivy
/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog.plugins.views.search.validation;
import org.apache.lucene.queryparser.charstream.CharStream;
import org.apache.lucene.queryparser.charstream.FastCharStream;
import org.apache.lucene.queryparser.classic.QueryParserTokenManager;
import org.apache.lucene.queryparser.classic.Token;
import java.io.StringReader;
import java.util.LinkedList;
import java.util.List;
public class CollectingQueryParserTokenManager extends QueryParserTokenManager {
private final List tokens = new LinkedList<>();
public CollectingQueryParserTokenManager() {
super(new FastCharStream(new StringReader("")));
}
@Override
public void ReInit(CharStream stream) {
this.tokens.clear();
super.ReInit(new LineCountingCharStream(stream));
}
@Override
public Token getNextToken() {
final Token token = super.getNextToken();
this.tokens.add(ImmutableToken.create(token));
return token;
}
public List getTokens() {
return tokens;
}
}