MaltConsoleEngine.java

package org.maltparser;

import java.io.File;
import java.util.Date;
import org.maltparser.core.exception.MaltChainedException;
import org.maltparser.core.helper.SystemInfo;
import org.maltparser.core.helper.SystemLogger;
import org.maltparser.core.options.OptionManager;
import org.maltparser.core.plugin.PluginLoader;

/**
 * MaltConsoleEngine controls the MaltParser system using the console version.
 *
 * @author Johan Hall
 * @since 1.0
*
 */
public class MaltConsoleEngine {

    public static final int OPTION_CONTAINER = 0;

    /**
     * Creates a MaltConsoleEngine object
     *
     */
    public MaltConsoleEngine() {
        try {
            /*
             * Option and Plug-in management
             */
            OptionManager.instance().loadOptionDescriptionFile();
            if (SystemInfo.getMaltJarPath() != null) {
                PluginLoader.instance().loadPlugins(new File(SystemInfo.getMaltJarPath().getParent() + "/plugin"));
            }
            OptionManager.instance().generateMaps();
        } catch (MaltChainedException e) {
            if (SystemLogger.logger().isDebugEnabled()) {
                SystemLogger.logger().debug("", e);
            } else {
                SystemLogger.logger().error(e.getMessageChain());
            }
            System.exit(1);
        }
    }

    /**
     * Starts the console engine.
     *
     * @param args command-line arguments
     */
    public void startEngine(String[] args) {
        try {
            final OptionManager om = OptionManager.instance();
            final boolean hasArg = om.parseCommandLine(args, OPTION_CONTAINER);
            /*
             * Update the verbosity level according to the verbosity option
             */
            String verbosity;
            if (hasArg) {
                verbosity = (String) OptionManager.instance().getOptionValue(OPTION_CONTAINER, "system", "verbosity");
            } else {
                verbosity = (String) OptionManager.instance().getOptionDefaultValue("system", "verbosity");
            }
            if (verbosity != null) {
                SystemLogger.instance().setSystemVerbosityLevel(verbosity.toUpperCase());
            }
            /*
             * Help or reading the option file
             */
            if (!hasArg || om.getNumberOfOptionValues(OPTION_CONTAINER) == 0) {
                SystemLogger.logger().info(SystemInfo.header());
                SystemLogger.logger().info(SystemInfo.shortHelp());
                return;
            } else if (om.getOptionValue(OPTION_CONTAINER, "system", "help") != null) {
                SystemLogger.logger().info(SystemInfo.header());
                SystemLogger.logger().info(om.getOptionDescriptions());
                return;
            } else {
                if (om.getOptionValue(OPTION_CONTAINER, "system", "option_file") != null && om.getOptionValue(0, "system", "option_file").toString().length() > 0) {
                    om.parseOptionInstanceXMLfile((String) om.getOptionValue(OPTION_CONTAINER, "system", "option_file"));
                }
            }
            maltParser();
        } catch (MaltChainedException e) {
            if (SystemLogger.logger().isDebugEnabled()) {
                SystemLogger.logger().debug("", e);
            } else {
                SystemLogger.logger().error(e.getMessageChain());
            }
            System.exit(1);
        }
    }

    /**
     * Creates and executes a MaltParser configuration
     *
     * @throws MaltChainedException
     */
    private void maltParser() throws MaltChainedException {
        if (SystemLogger.logger() != null && SystemLogger.logger().isInfoEnabled()) {
            SystemLogger.logger().info(SystemInfo.header() + "\n");
            SystemLogger.logger().info("Started: " + new Date(System.currentTimeMillis()) + "\n");
        }
        Engine engine = new Engine();
        engine.initialize(OPTION_CONTAINER);
        engine.process(OPTION_CONTAINER);
        engine.terminate(OPTION_CONTAINER);
        if (SystemLogger.logger().isInfoEnabled()) {
            SystemLogger.logger().info("Finished: " + new Date(System.currentTimeMillis()) + "\n");
        }
    }
}