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From elecha...@apache.org
Subject svn commit: r357465 - in /directory/asn1/trunk/codec/src: main/java/org/apache/asn1/codec/util/StringUtils.java test/org/apache/asn1/codec/util/StringUtilsTest.java
Date Sun, 18 Dec 2005 14:29:49 GMT
Author: elecharny
Date: Sun Dec 18 06:29:42 2005
New Revision: 357465

URL: http://svn.apache.org/viewcvs?rev=357465&view=rev
Log:
Added utilities function to transform a List and a Map
to a String. These two function will be used by many toString()
methods.

Modified:
    directory/asn1/trunk/codec/src/main/java/org/apache/asn1/codec/util/StringUtils.java
    directory/asn1/trunk/codec/src/test/org/apache/asn1/codec/util/StringUtilsTest.java

Modified: directory/asn1/trunk/codec/src/main/java/org/apache/asn1/codec/util/StringUtils.java
URL: http://svn.apache.org/viewcvs/directory/asn1/trunk/codec/src/main/java/org/apache/asn1/codec/util/StringUtils.java?rev=357465&r1=357464&r2=357465&view=diff
==============================================================================
--- directory/asn1/trunk/codec/src/main/java/org/apache/asn1/codec/util/StringUtils.java (original)
+++ directory/asn1/trunk/codec/src/main/java/org/apache/asn1/codec/util/StringUtils.java Sun
Dec 18 06:29:42 2005
@@ -17,6 +17,9 @@
 package org.apache.asn1.codec.util;
 
 import java.io.UnsupportedEncodingException;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
 
 /**
  * Little helper class. Nothing that should stay here, but I need those 
@@ -1283,5 +1286,76 @@
         {
             return new byte[]{};
         }
+    }
+    
+    /**
+     * Utility method that return a String representation of a list
+     * @param list The list to transform to a string
+     * @return A csv string 
+     */
+    public static String listToString( List list )
+    {
+    	if ( ( list == null ) || ( list.size() == 0 ) )
+    	{
+    		return "";
+    	}
+    	
+    	StringBuffer sb = new StringBuffer();
+    	boolean isFirst = true;
+    	
+    	Iterator iter = list.iterator();
+    	
+    	while ( iter.hasNext() )
+    	{
+    		if ( isFirst)
+    		{
+    			isFirst = false; 
+    		}
+    		else
+    		{
+    			sb.append( ", " );
+    		}
+    		
+    		sb.append( iter.next() );
+    	}
+    	
+    	return sb.toString();
+    }
+    
+    /**
+     * Utility method that return a String representation of a map. The elements
+     * will be represented as "key = value"
+     * @param map The map to transform to a string
+     * @return A csv string 
+     */
+    public static String mapToString( Map map )
+    {
+    	if ( ( map == null ) || ( map.size() == 0 ) )
+    	{
+    		return "";
+    	}
+    	
+    	StringBuffer sb = new StringBuffer();
+    	boolean isFirst = true;
+    	
+    	Iterator iter = map.keySet().iterator();
+    	
+    	while ( iter.hasNext() )
+    	{
+    		if ( isFirst)
+    		{
+    			isFirst = false; 
+    		}
+    		else
+    		{
+    			sb.append( ", " );
+    		}
+    		
+    		Object key = iter.next();
+    		sb.append( key );
+    		sb.append( " = '" ).append( map.get( key ) ).append( "'" );
+    	}
+    	
+    	return sb.toString();
     }
 }

Modified: directory/asn1/trunk/codec/src/test/org/apache/asn1/codec/util/StringUtilsTest.java
URL: http://svn.apache.org/viewcvs/directory/asn1/trunk/codec/src/test/org/apache/asn1/codec/util/StringUtilsTest.java?rev=357465&r1=357464&r2=357465&view=diff
==============================================================================
--- directory/asn1/trunk/codec/src/test/org/apache/asn1/codec/util/StringUtilsTest.java (original)
+++ directory/asn1/trunk/codec/src/test/org/apache/asn1/codec/util/StringUtilsTest.java Sun
Dec 18 06:29:42 2005
@@ -1,6 +1,11 @@
 package org.apache.asn1.codec.util;
 
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
 import junit.framework.Assert;
 import junit.framework.TestCase;
 
@@ -52,4 +57,51 @@
 		Assert.assertEquals(0x7347A563, res);
 	}
 	*/
+	
+	public void testListToString()
+	{
+		List list = new ArrayList();
+		
+		list.add( "elem1" );
+		list.add( "elem2" );
+		list.add( "elem3" );
+		
+		Assert.assertEquals( "elem1, elem2, elem3", StringUtils.listToString( list ) );
+	}
+
+	public void testMapToString()
+	{
+		class Value
+		{
+			String name;
+			int val;
+			
+			public Value( String name, int val)
+			{
+				this.name = name;
+				this.val = val;
+			}
+			
+			public String toString()
+			{
+				return "[" + name + ", " + val + "]";
+			}
+		}
+		Map map = new HashMap();
+		
+		map.put( "elem1", new Value( "name1", 1) );
+		map.put( "elem2", new Value( "name2", 2) );
+		map.put( "elem3", new Value( "name3", 3) );
+		
+		String result = StringUtils.mapToString( map );
+		
+		boolean res = "elem1 = '[name1, 1]', elem2 = '[name2, 2]', elem3 = '[name3, 3]'".equals(
result) ||
+					  "elem1 = '[name1, 1]', elem3 = '[name3, 3]', elem2 = '[name2, 2]'".equals( result)
||
+					  "elem2 = '[name2, 2]', elem1 = '[name1, 1]', elem3 = '[name3, 3]'".equals( result)
||
+					  "elem2 = '[name2, 2]', elem3 = '[name3, 3]', elem1 = '[name1, 1]'".equals( result)
||
+					  "elem3 = '[name3, 3]', elem1 = '[name1, 1]', elem2 = '[name2, 2]'".equals( result)
||
+					  "elem3 = '[name3, 3]', elem3 = '[name2, 2]', elem1 = '[name1, 1]'".equals( result);
+		
+		Assert.assertTrue( res );
+	}
 }



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