mergecvscommand.java

编辑视频文件

/*
 * File:     MergeCVSCommand.java
 * Project:  MPI Linguistic Application
 * Date:     02 May 2007
 *
 * Copyright (C) 2001-2007  Max Planck Institute for Psycholinguistics
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package mpi.eudico.client.annotator.commands;

import mpi.eudico.server.corpora.clomimpl.abstr.TranscriptionImpl;

import mpi.util.CVEntry;
import mpi.util.ControlledVocabulary;

import java.util.ArrayList;


/**
 * A Command to merge two Controlled Vocabularies from two different Transcriptions,
 * i.e. entries present in the second CV but not in the first are copied to the first
 * CV.
 *
 * @author Han Sloetjes
 */
public class MergeCVSCommand implements UndoableCommand {
    private String commandName;

    // receiver
    private TranscriptionImpl transcription;
    private ControlledVocabulary conVoc;
    private ControlledVocabulary secConVoc;
    private ArrayList copiedEntries;

    /**
     * Creates a new MergeCVSCommand
     */
    public MergeCVSCommand(String name) {
        commandName = name;
    }

    /**
     * Removes the entries that have been added by the merging process
     *
     * @see mpi.eudico.client.annotator.commands.UndoableCommand#undo()
     */
    public void undo() {
        if ((conVoc != null) && (copiedEntries != null) &&
                (copiedEntries.size() > 0)) {
            CVEntry entry;

            for (int i = 0; i < copiedEntries.size(); i++) {
                entry = (CVEntry) copiedEntries.get(i);
                conVoc.removeEntry(entry);
            }
        }
    }

    /**
     * Again adds the previously added entries.
     *
     * @see mpi.eudico.client.annotator.commands.UndoableCommand#redo()
     */
    public void redo() {
        if ((conVoc != null) && (copiedEntries != null) &&
                (copiedEntries.size() > 0)) {
            CVEntry entry;

            for (int i = 0; i < copiedEntries.size(); i++) {
                entry = (CVEntry) copiedEntries.get(i);
                conVoc.addEntry(entry);
            }
        }
    }

    /**
     * Merges two ControlledVocabularies.<br>
     * <b>Note: </b>it is assumed the types and order of the arguments are
     * correct.
     *
     * @param receiver the Transcription
     * @param arguments the arguments:  <ul><li>arg[0] = the first Controlled
     *        Vocabulary (Controlled Vocabulary)</li> <li>arg[1] = the second
     *        Controlled Vocabulary (Controlled Vocabulary)</li> </ul>
     */
    public void execute(Object receiver, Object[] arguments) {
        transcription = (TranscriptionImpl) receiver;

        conVoc = (ControlledVocabulary) arguments[0];
        secConVoc = (ControlledVocabulary) arguments[1];

        if ((transcription.getControlledVocabulary(conVoc.getName()) != null) &&
                (secConVoc != null)) {
            copiedEntries = new ArrayList();

            CVEntry[] first = conVoc.getEntriesSortedByAlphabet();
            CVEntry[] second = secConVoc.getEntriesSortedByAlphabet();
            CVEntry nextEntry;
outerloop: 
            for (int i = 0; i < second.length; i++) {
                for (int j = 0; j < first.length; j++) {
                    // compare second[i] en first[j]
                    if (first[j].getValue().equals(second[i].getValue())) {
                        continue outerloop;
                    }

                    if ((j == (first.length - 1)) ||
                            (first[j].getValue().compareTo(second[i].getValue()) > 0)) {
                        // the second entry is not in the list...
                        nextEntry = new CVEntry(second[i].getValue(),
                                second[i].getDescription());
                        copiedEntries.add(nextEntry);
                        conVoc.addEntry(nextEntry);

                        continue outerloop;
                    }
                }
            }
        }
    }

    /**
     * Returns the name of the command.
     *
     * @return the name of the command
     */
    public String getName() {
        return commandName;
    }
}