de.tudarmstadt.ukp.dkpro.keyphrases.bookindexing.util.SerializationUtils.java Source code

Introduction

Here is the source code for de.tudarmstadt.ukp.dkpro.keyphrases.bookindexing.util.SerializationUtils.java

Source

/*******************************************************************************
 * Copyright 2013
    
 * Ubiquitous Knowledge Processing (UKP) Lab
 * Technische Universitt Darmstadt
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl-3.0.txt
 ******************************************************************************/
package de.tudarmstadt.ukp.dkpro.keyphrases.bookindexing.util;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;

/**
 * Provides methods to serialize and deserialize arbitrary objects to/from disk.
 *
 * @author Mateusz Parzonka
 *
 */
public class SerializationUtils {

    /**
     * @param object
     *          object to be serialized
     * @param filePath
     *          the object will be written at this location, directories will be
     *          created according to path
     * @throws Exception exception
     */
    public static void serializeToDisk(Serializable object, String filePath) throws Exception {
        File dir = new File(FilenameUtils.getFullPathNoEndSeparator(filePath));
        if (!dir.exists()) {
            FileUtils.forceMkdir(dir);
        } else {
            if (dir.isFile()) {
                throw new IOException("Path to dir is a file!");
            }
        }
        ObjectOutputStream objOut = null;
        objOut = new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream(filePath)));
        objOut.writeObject(object);
        objOut.flush();
        objOut.close();
    }

    /**
     * Deserializes an object from disk.
     *
     * @param filePath the file path
     * @return an object. Clients have to cast the object to the expected type.
     * @throws Exception an exception
     */
    public static Object deserializeFromDisk(String filePath) throws Exception {
        ObjectInputStream in = new ObjectInputStream(new FileInputStream(new File(filePath)));

        return in.readObject();
    }

}