/*
 * Copyright 2013 Eediom Inc.
 * 
 * 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.araqne.logdb.query.parser;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;

import java.util.HashMap;
import java.util.Map;

import org.araqne.logdb.QueryCommand;
import org.araqne.logdb.QueryCommandPipe;
import org.araqne.logdb.QueryParserService;
import org.araqne.logdb.Row;
import org.araqne.logdb.impl.FunctionRegistryImpl;
import org.araqne.logdb.query.command.ParseKv;
import org.araqne.logdb.query.engine.QueryParserServiceImpl;
import org.junit.Before;
import org.junit.Test;

public class ParseKvParserTest {
	private QueryParserService queryParserService;

	@Before
	public void setup() {
		QueryParserServiceImpl p = new QueryParserServiceImpl();
		p.setFunctionRegistry(new FunctionRegistryImpl());
		queryParserService = p;
	}
	
	@Test
	public void testQuery() {
		ParseKvParser parser = new ParseKvParser();
		parser.setQueryParserService(queryParserService);
		
		ParseKv kv = (ParseKv) parser.parse(null, "parsekv");
		DummyOutput out = new DummyOutput();
		kv.setOutput(new QueryCommandPipe(out));

		assertEquals("line", kv.getField());
		assertFalse(kv.isOverlay());
		assertEquals(" ", kv.getPairDelim());
		assertEquals("=", kv.getKvDelim());
		assertEquals("parsekv", kv.toString());

		// test field extraction
		String line = "a=1 b=2 c=3";
		Map<String, Object> m = new HashMap<String, Object>();
		m.put("line", line);
		kv.onPush(new Row(m));
		Row o = out.output;

		assertEquals(3, o.map().size());
		assertEquals("1", o.get("a"));
		assertEquals("2", o.get("b"));
		assertEquals("3", o.get("c"));
	}

	private class DummyOutput extends QueryCommand {
		private Row output;

		@Override
		public String getName() {
			return "output";
		}

		@Override
		public void onPush(Row m) {
			output = m;
		}
	}

}