package org.openswing.swing.util.java;
import java.util.*;
import org.openswing.swing.message.send.java.*;
/**
* <p>Title: OpenSwing Framework</p>
* <p>Description: Singleton class used to compare/translate data types.</p>
* <p>Copyright: Copyright (C) 2006 Mauro Carniel</p>
*
* <p> This file is part of OpenSwing Framework.
* This library is free software; you can redistribute it and/or
* modify it under the terms of the (LGPL) Lesser General Public
* License as published by the Free Software Foundation;
*
* GNU LESSER GENERAL PUBLIC LICENSE
* Version 2.1, February 1999
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* The author may be contacted at:
* maurocarniel@tin.it</p>
*
* @author Mauro Carniel
* @version 1.0
*/
public class Utils {
/**
* Compare two arrays of integers.
* @return <code>true</code> if two arrays contain the same values, <code>false</code> otherwise
*/
public static final boolean equals(int[] a1,int[] a2) {
if (a1==null || a2==null)
return false;
if (a1.length!=a2.length)
return false;
for(int i=0;i<a1.length;i++)
if (a1[i]!=a2[i])
return false;
return true;
}
/**
* Compare two arrays of strings.
* @return <code>true</code> if two arrays contain the same values, <code>false</code> otherwise
*/
public static final boolean equals(String[] a1,String[] a2) {
if (a1==null || a2==null)
return false;
if (a1.length!=a2.length)
return false;
for(int i=0;i<a1.length;i++)
if (a1[i]==null && a2[i]!=null)
return false;
else if (a1[i]!=null && a2[i]==null)
return false;
else if (a1[i]!=null && !a1[i].equals(a2[i]))
return false;
return true;
}
/**
* Compare two arrays of objects.
* @return <code>true</code> if two arrays contain the same values, <code>false</code> otherwise
*/
public static final boolean equals(Object[] a1,Object[] a2) {
if (a1==null || a2==null)
return false;
if (a1.length!=a2.length)
return false;
for(int i=0;i<a1.length;i++)
if (a1[i]==null && a2[i]!=null)
return false;
else if (a1[i]!=null && a2[i]==null)
return false;
else if (a1[i]!=null && !a1[i].equals(a2[i]))
return false;
return true;
}
/**
* Compare two arrays of booleans.
* @return <code>true</code> if two arrays contain the same values, <code>false</code> otherwise
*/
public static final boolean equals(boolean[] a1,boolean[] a2) {
if (a1==null || a2==null)
return false;
if (a1.length!=a2.length)
return false;
for(int i=0;i<a1.length;i++)
if (a1[i]!=a2[i])
return false;
return true;
}
/**
* Compare two lists of objects.
* @return <code>true</code> if two lists contain the same values, <code>false</code> otherwise
*/
public static final boolean equals(List a1,List a2) {
if (a1==null || a2==null)
return false;
if (a1.size()!=a2.size())
return false;
for(int i=0;i<a1.size();i++)
if (a1.get(i)==null && a2.get(i)!=null)
return false;
else if (a1.get(i)!=null && a2.get(i)==null)
return false;
else if (a1.get(i)!=null && !a1.get(i).equals(a2.get(i)))
return false;
return true;
}
/**
* Compare two arrays of FilterWhereClause.
* @return <code>true</code> if two arrays contain the same values, <code>false</code> otherwise
*/
public static final boolean equals(FilterWhereClause[] a1,FilterWhereClause[] a2) {
if (a1==null || a2==null)
return false;
if (a1.length!=a2.length)
return false;
for(int i=0;i<a1.length;i++)
if (a1[i]==null && a2[i]!=null)
return false;
else if (a1[i]!=null && a2[i]==null)
return false;
else if (a1[i]!=null && !a1[i].equals(a2[i]))
return false;
return true;
}
/**
* Compare two maps of objects: both keys and values are compared.
* Supported values are base java types, List, Map, String[], Object[], int[], boolean[] and FilterWhereClause[].
* @return <code>true</code> if two lists contain the same values, <code>false</code> otherwise
*/
public static final boolean equals(Map a1,Map a2) {
if (a1==null || a2==null)
return false;
if (a1.size()!=a2.size())
return false;
Iterator it = a1.keySet().iterator();
Object key = null;
Object value1 = null;
Object value2 = null;
while(it.hasNext()) {
key = it.next();
value1 = a1.get(key);
value2 = a2.get(key);
if (value2==null)
return false;
if (!value1.equals(value2)) {
if (value1 instanceof String[] &&
value2 instanceof String[])
return equals((String[])value1,(String[])value2);
else if (value1 instanceof Object[] &&
value2 instanceof Object[])
return equals((Object[])value1,(Object[])value2);
else if (value1 instanceof int[] &&
value2 instanceof int[])
return equals((int[])value1,(int[])value2);
else if (value1 instanceof boolean[] &&
value2 instanceof boolean[])
return equals((boolean[])value1,(boolean[])value2);
else if (value1 instanceof List &&
value2 instanceof List)
return equals((List)value1,(List)value2);
else if (value1 instanceof Map &&
value2 instanceof Map)
return equals((Map)value1,(Map)value2);
else if (value1 instanceof FilterWhereClause[] &&
value2 instanceof FilterWhereClause[])
return equals((FilterWhereClause[])value1,(FilterWhereClause[])value2);
return false;
}
}
return true;
}
}