/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.camel.processor.lucene;

import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.processor.lucene.support.Hits;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.apache.lucene.analysis.SimpleAnalyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.util.Version;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LuceneQueryProcessorTest extends CamelTestSupport {
    private static final transient Logger LOG = LoggerFactory.getLogger(LuceneQueryProcessorTest.class);

    @Override
    public boolean isUseRouteBuilder() {
        return false;
    }

    private void sendRequest() throws Exception {
        template.send("direct:start", new Processor() {
            public void process(Exchange exchange) throws Exception {                
                    
                // Set the property of the charset encoding
                exchange.setProperty(Exchange.CHARSET_NAME, "UTF-8");
                Message in = exchange.getIn();
                in.setHeader("QUERY", "");
            }            
        });
    }
    
    @Test
    public void testPhraseSearcher() throws Exception {
        final StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_35);
        MockEndpoint mockSearchEndpoint = getMockEndpoint("mock:searchResult");
        
        context.stop();
        context.addRoutes(new RouteBuilder() {
            public void configure() {
                
                try {
                    from("direct:start").
                        setHeader("QUERY", constant("Rodney Dangerfield")).
                        process(new LuceneQueryProcessor("target/stdindexDir", analyzer, null, 20)).
                        to("direct:next");
                } catch (Exception e) {
                    e.printStackTrace();
                }
                
                from("direct:next").process(new Processor() {
                    public void process(Exchange exchange) throws Exception {
                        Hits hits = exchange.getIn().getBody(Hits.class);
                        printResults(hits);
                    }
                    
                    private void printResults(Hits hits) {
                        LOG.debug("Number of hits: " + hits.getNumberOfHits());
                        for (int i = 0; i < hits.getNumberOfHits(); i++) {
                            LOG.debug("Hit " + i + " Index Location:" + hits.getHit().get(i).getHitLocation());
                            LOG.debug("Hit " + i + " Score:" + hits.getHit().get(i).getScore());
                            LOG.debug("Hit " + i + " Data:" + hits.getHit().get(i).getData());
                        }
                    }
                }).to("mock:searchResult");
            }
        });
        context.start();
        LOG.debug("------------Beginning Phrase + Standard Analyzer Search Test---------------");
        
        sendRequest();
        mockSearchEndpoint.assertIsSatisfied();
        LOG.debug("------------Completed Phrase + Standard Analyzer Search Test---------------");
        context.stop();
    }    
    
    @Test
    public void testWildcardSearcher() throws Exception {
        final SimpleAnalyzer analyzer = new SimpleAnalyzer(Version.LUCENE_35);
        MockEndpoint mockSearchEndpoint = getMockEndpoint("mock:searchResult");
        
        context.stop();
        context.addRoutes(new RouteBuilder() {
            public void configure() {
                
                try {
                    from("direct:start").
                        setHeader("QUERY", constant("Carl*")).
                        process(new LuceneQueryProcessor("target/simpleindexDir", analyzer, null, 20)).
                        to("direct:next");
                } catch (Exception e) {
                    e.printStackTrace();
                }
                
                from("direct:next").process(new Processor() {
                    public void process(Exchange exchange) throws Exception {
                        Hits hits = exchange.getIn().getBody(Hits.class);
                        printResults(hits);
                    }

                    private void printResults(Hits hits) {
                        LOG.debug("Number of hits: " + hits.getNumberOfHits());
                        for (int i = 0; i < hits.getNumberOfHits(); i++) {
                            LOG.debug("Hit " + i + " Index Location:" + hits.getHit().get(i).getHitLocation());
                            LOG.debug("Hit " + i + " Score:" + hits.getHit().get(i).getScore());
                            LOG.debug("Hit " + i + " Data:" + hits.getHit().get(i).getData());
                        }
                    }
                }).to("mock:searchResult");
            }
            
        });
        context.start();
        LOG.debug("------------Beginning Wildcard + Simple Analyzer Phrase Searcher Test---------------");
        
        sendRequest();
        mockSearchEndpoint.assertIsSatisfied();
        LOG.debug("------------Completed Wildcard + Simple Analyzer Phrase Searcher Test---------------");
        context.stop();
    } 
}
