/**
* Ivory: A Hadoop toolkit for Web-scale information retrieval
*
* 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 ivory.ptc.driver;
import ivory.ptc.SortedPseudoTestCollection;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.apache.log4j.Logger;
/**
* Driver that extracts a set of pseudo queries and pseudo judgments according
* to a sampling criterion ({@link ivory.ptc.sampling.Criterion}).
*
* @author Nima Asadi
*/
public class ExtractSortedPseudoTestCollection extends Configured implements Tool {
private static final Logger LOG = Logger.getLogger(ExtractSortedPseudoTestCollection.class);
private static int printUsage() {
System.out.println("usage: [AnchorText-inverted-index-path] [output-path] "
+ "[judgment-extractor-class] [judgment-extractor-parameters] "
+ "[query-scorer-class]"
+ "[sampling-criterion-class] [sampling-criterion-parameters]\n"
+ " - [judgment-extractor-parameters] is a list of parameters "
+ "separated by \"" + SortedPseudoTestCollection.PARAMETERS_SPERATOR + "\"\n"
+ " - [sampling-criterion-parameters] is a list of parameters "
+ "separated by \"" + SortedPseudoTestCollection.PARAMETERS_SPERATOR + "\"");
ToolRunner.printGenericCommandUsage(System.out);
return -1;
}
@Override
public int run(String[] args) throws Exception {
if (args.length != 7) {
printUsage();
return -1;
}
Configuration conf = getConf();
FileSystem fs = FileSystem.get(conf);
// Command line arguments
String indexPath = args[0];
String outputPath = args[1];
String judgmentExtractor = args[2];
String judgmentExtractorParameters = args[3];
String queryScorer = args[4];
String samplingCriterion = args[5];
String samplingCriterionParameters = args[6];
Path p = new Path(indexPath);
if (!fs.exists(p)) {
LOG.warn("AnchorText inverted index path doesn't exist...");
return -1;
}
conf.set("Ivory.InputPath", indexPath);
conf.set("Ivory.OutputPath", outputPath);
conf.set("Ivory.JudgmentExtractor", judgmentExtractor);
conf.set("Ivory.JudgmentExtractorParameters", judgmentExtractorParameters);
conf.set("Ivory.QueryScorer", queryScorer);
conf.set("Ivory.SamplingCriterion", samplingCriterion);
conf.set("Ivory.SamplingCriterionParameters", samplingCriterionParameters);
SortedPseudoTestCollection ex = new SortedPseudoTestCollection(conf);
ex.run();
return 0;
}
/**
* Dispatches command-line arguments to the tool via the
* <code>ToolRunner</code>.
*/
public static void main(String[] args) throws Exception {
int res = ToolRunner.run(new Configuration(), new ExtractSortedPseudoTestCollection(), args);
System.exit(res);
}
}