VariableNameComparator.java

/*
 * #%~
 * org.overture.ide.debug
 * %%
 * Copyright (C) 2008 - 2014 Overture
 * %%
 * 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 3 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, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #~%
 */
package org.overture.ide.debug.core.model.internal;

import java.util.Comparator;

import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IVariable;

public class VariableNameComparator implements Comparator<Object>
{

	public int compare(Object o1, Object o2)
	{
		int result = 0;
		IVariable v1 = (IVariable) o1;
		IVariable v2 = (IVariable) o2;
		try
		{
			String v1Str = v1 != null ? v1.getName() : ""; //$NON-NLS-1$
			v1Str = v1Str.replaceAll("\\[", "").replaceAll("\\]", ""); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
			int v1Int = 0;
			boolean v1IsInt;
			String v2Str = v2 != null ? v2.getName() : ""; //$NON-NLS-1$
			v2Str = v2Str.replaceAll("\\[", "").replaceAll("\\]", ""); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
			int v2Int = 0;
			boolean v2IsInt;

			try
			{
				v1Int = Integer.parseInt(v1Str);
				v1IsInt = true;
			} catch (NumberFormatException nxcn)
			{
				v1IsInt = false;
			}

			try
			{
				v2Int = Integer.parseInt(v2Str);
				v2IsInt = true;
			} catch (NumberFormatException nxcn)
			{
				v2IsInt = false;
			}

			if (v1IsInt == true && v2IsInt == true)
			{
				if (v1Int > v2Int)
				{
					result = 1;
				} else if (v1Int < v2Int)
				{
					result = -1;
				} else
				{
					result = 0;
				}
			} else
			{
				result = v1Str.compareTo(v2Str);

				if (result > 0)
				{
					result = 1;
				} else if (result < 0)
				{
					result = -1;
				} else
				{
					result = 0;
				}
			}
		} catch (DebugException e)
		{
		}

		return result;
	}

}