de.tudarmstadt.ukp.wikipedia.util.ApiUtilities.java Source code

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Here is the source code for de.tudarmstadt.ukp.wikipedia.util.ApiUtilities.java

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/*******************************************************************************
 * Copyright (c) 2010 Torsten Zesch.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser Public License v3
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl.html
 * 
 * Contributors:
 *     Torsten Zesch - initial API and implementation
 ******************************************************************************/
package de.tudarmstadt.ukp.wikipedia.util;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import de.tudarmstadt.ukp.wikipedia.util.OS;

public class ApiUtilities {

    private static final Log logger = LogFactory.getLog(ApiUtilities.class);

    /**
     * DOTS - print progress dots.
     * TEXT - print a message with progress in percent.
     * @author zesch
     *
     */
    public enum ProgressInfoMode {
        DOTS, TEXT
    };

    /**
     * Prints a progress counter.
     * @param counter Indicates the position in the task.
     * @param size Size of the overall task.
     * @param step How many parts should the progress counter have?
     * @param mode Sets the output mode.
     * @param text The text that should be print along with the progress indicator.
     */
    public static void printProgressInfo(int counter, int size, int step, ProgressInfoMode mode, String text) {
        if (size < step) {
            return;
        }

        if (counter % (size / step) == 0) {
            double progressPercent = counter * 100 / size;
            progressPercent = 1 + Math.round(progressPercent * 100) / 100.0;
            if (mode.equals(ApiUtilities.ProgressInfoMode.TEXT)) {
                logger.info(text + ": " + progressPercent + " - " + OS.getUsedMemory() + " MB");
            } else if (mode.equals(ApiUtilities.ProgressInfoMode.DOTS)) {
                System.out.print(".");
                if (progressPercent >= 100) {
                    System.out.println();
                }
            }
        }
    }

    //    /**
    //     * Serialize an instance of CategoryGraph.
    //     *
    //     * @param fileName
    //     *            Complete path and file name.
    //     */
    //    public static void saveCategoryGraph(String fileName, CategoryGraph catGraph) {
    //        try {
    //            ObjectOutputStream file = new ObjectOutputStream(
    //                    new FileOutputStream(fileName));
    //            file.writeObject(catGraph);
    //            file.close();
    //        } catch (Exception e) {
    //            e.printStackTrace();
    //        }
    //    }
    //
    //    /**
    //     * Load a serialized instance of CategoryGraph.
    //     * @param fileName Complete path and file name.
    //     */
    //    public static CategoryGraph loadCategoryGraph(String fileName) {
    //        CategoryGraph catGraph;
    //        try {
    //            ObjectInputStream file = new ObjectInputStream(new FileInputStream(
    //                    fileName));
    //            catGraph = (CategoryGraph) file.readObject();
    //            file.close();
    //        } catch (Exception e) {
    //            e.printStackTrace();
    //            return null;
    //        }
    //        return catGraph;
    //    }
}