com.nextep.datadesigner.vcs.impl.ComparisonItemSorter.java Source code

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Here is the source code for com.nextep.datadesigner.vcs.impl.ComparisonItemSorter.java

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/*******************************************************************************
 * Copyright (c) 2011 neXtep Software and contributors.
 * All rights reserved.
 *
 * This file is part of neXtep designer.
 *
 * NeXtep designer 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 3 of the License, or any later version.
 *
 * NeXtep designer 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Contributors:
 *     neXtep Softwares - initial API and implementation
 *******************************************************************************/
package com.nextep.datadesigner.vcs.impl;

import java.util.Comparator;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.nextep.designer.vcs.model.IComparisonItem;
import com.nextep.designer.vcs.model.IVersionable;

public class ComparisonItemSorter implements Comparator<IComparisonItem> {

    private static final Log log = LogFactory.getLog(ComparisonItemSorter.class);

    @Override
    public int compare(IComparisonItem o1, IComparisonItem o2) {
        // We only put tables first
        if ("TABLE".equals(o1.getType().getId()) && "TABLE".equals(o2.getType().getId())) {
            if (o1.getSource() != null && o2.getSource() != null && ((IVersionable<?>) o1.getSource())
                    .getReferenceDependencies().contains(o2.getSource().getReference())) {
                log.info(((IVersionable<?>) o1.getSource()).getName() + " depends on "
                        + ((IVersionable<?>) o2.getSource()).getName());
                return 1;
            }
            return -1;
        } else if ("TABLE".equals(o1.getType().getId())) {
            return -1;
        } else if ("TABLE".equals(o2.getType().getId())) {
            return 1;
        } else {
            return -1;
        }
    }

}