com.expleague.ml.cli.modes.impl.ConvertPoolLibSvm Maven / Gradle / Ivy
package com.expleague.ml.cli.modes.impl;
import com.expleague.ml.cli.JMLLCLI;
import com.expleague.ml.cli.builders.data.impl.DataBuilderClassic;
import com.expleague.ml.cli.modes.AbstractMode;
import com.expleague.ml.cli.modes.CliPoolReaderHelper;
import com.expleague.ml.data.tools.DataTools;
import com.expleague.ml.data.tools.Pool;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.MissingArgumentException;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
/**
* User: qdeee
* Date: 16.09.15
*/
public class ConvertPoolLibSvm extends AbstractMode {
public void run(final CommandLine command) throws MissingArgumentException, IOException {
if (!command.hasOption(JMLLCLI.LEARN_OPTION)) {
throw new MissingArgumentException("Please provide 'LEARN_OPTION");
}
final DataBuilderClassic dataBuilder = new DataBuilderClassic();
CliPoolReaderHelper.setPoolReader(command, dataBuilder);
dataBuilder.setLearnPath(command.getOptionValue(JMLLCLI.LEARN_OPTION));
final Pool pool = dataBuilder.create().getFirst();
final String outputName = command.hasOption(JMLLCLI.OUTPUT_OPTION) ? getOutputName(command) : getOutputName(command) + ".libfm";
try (final BufferedWriter out = new BufferedWriter(new FileWriter(outputName))) {
DataTools.writePoolInLibfmFormat(pool, out);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}