| /** |
| * 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.nutch.parse; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.util.Tool; |
| import org.apache.hadoop.util.ToolRunner; |
| import org.apache.nutch.crawl.CrawlDatum; |
| import org.apache.nutch.protocol.Content; |
| import org.apache.nutch.protocol.Protocol; |
| import org.apache.nutch.protocol.ProtocolFactory; |
| import org.apache.nutch.util.NutchConfiguration; |
| |
| /** |
| * Parser checker, useful for testing parser. |
| * |
| * @author John Xing |
| */ |
| |
| public class ParserChecker implements Tool { |
| |
| public static final Logger LOG = LoggerFactory.getLogger(ParserChecker.class); |
| |
| public ParserChecker() { |
| } |
| |
| Configuration conf = null; |
| |
| public int run(String[] args) throws Exception { |
| boolean dumpText = false; |
| boolean force = false; |
| String contentType = null; |
| String url = null; |
| |
| String usage = "Usage: ParserChecker [-dumpText] [-forceAs mimeType] url"; |
| |
| if (args.length == 0) { |
| System.err.println(usage); |
| System.exit(-1); |
| } |
| |
| for (int i = 0; i < args.length; i++) { |
| if (args[i].equals("-forceAs")) { |
| force = true; |
| contentType = args[++i]; |
| } else if (args[i].equals("-dumpText")) { |
| dumpText = true; |
| } else if (i != args.length - 1) { |
| System.err.println(usage); |
| System.exit(-1); |
| } else { |
| url = args[i]; |
| } |
| } |
| |
| if (LOG.isInfoEnabled()) { |
| LOG.info("fetching: " + url); |
| } |
| |
| ProtocolFactory factory = new ProtocolFactory(conf); |
| Protocol protocol = factory.getProtocol(url); |
| Content content = protocol.getProtocolOutput(new Text(url), |
| new CrawlDatum()).getContent(); |
| |
| if (content == null) { |
| System.err.println("Can't fetch URL successfully"); |
| return (-1); |
| } |
| |
| if (force) { |
| content.setContentType(contentType); |
| } else { |
| contentType = content.getContentType(); |
| } |
| |
| if (contentType == null) { |
| System.err.println(""); |
| return (-1); |
| } |
| |
| if (LOG.isInfoEnabled()) { |
| LOG.info("parsing: " + url); |
| LOG.info("contentType: " + contentType); |
| } |
| |
| ParseResult parseResult = new ParseUtil(conf).parse(content); |
| |
| for (java.util.Map.Entry<Text, Parse> entry : parseResult) { |
| Parse parse = entry.getValue(); |
| System.out.print("---------\nUrl\n---------------\n"); |
| System.out.print(entry.getKey()); |
| System.out.print("---------\nParseData\n---------\n"); |
| System.out.print(parse.getData().toString()); |
| if (dumpText) { |
| System.out.print("---------\nParseText\n---------\n"); |
| System.out.print(parse.getText()); |
| } |
| } |
| |
| return 0; |
| } |
| |
| @Override |
| public Configuration getConf() { |
| return conf; |
| } |
| |
| @Override |
| public void setConf(Configuration c) { |
| conf = c; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| int res = ToolRunner.run(NutchConfiguration.create(), new ParserChecker(), |
| args); |
| System.exit(res); |
| } |
| |
| } |