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From akaras...@apache.org
Subject svn commit: r1062565 - /directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/CodecControlDecorator.java
Date Sun, 23 Jan 2011 22:59:25 GMT
Author: akarasulu
Date: Sun Jan 23 22:59:25 2011
New Revision: 1062565

URL: http://svn.apache.org/viewvc?rev=1062565&view=rev
Log:
an example for email being sent

Added:
    directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/CodecControlDecorator.java
      - copied, changed from r1062546, directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/AbstractControl.java

Copied: directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/CodecControlDecorator.java
(from r1062546, directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/AbstractControl.java)
URL: http://svn.apache.org/viewvc/directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/CodecControlDecorator.java?p2=directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/CodecControlDecorator.java&p1=directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/AbstractControl.java&r1=1062546&r2=1062565&rev=1062565&view=diff
==============================================================================
--- directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/AbstractControl.java
(original)
+++ directory/shared/trunk/ldap/src/main/java/org/apache/directory/shared/ldap/codec/controls/CodecControlDecorator.java
Sun Jan 23 22:59:25 2011
@@ -20,9 +20,6 @@
 package org.apache.directory.shared.ldap.codec.controls;
 
 
-import java.nio.BufferOverflowException;
-import java.nio.ByteBuffer;
-
 import org.apache.directory.shared.asn1.AbstractAsn1Object;
 import org.apache.directory.shared.asn1.EncoderException;
 import org.apache.directory.shared.asn1.ber.tlv.TLV;
@@ -32,42 +29,45 @@ import org.apache.directory.shared.i18n.
 import org.apache.directory.shared.ldap.model.message.Control;
 import org.apache.directory.shared.util.Strings;
 
+import java.nio.BufferOverflowException;
+import java.nio.ByteBuffer;
+
 
 /**
- * A Asn1Object to store a Control.
+ * Example to show decorator application. The decorator interface is CodecControl which
+ * adds the additional functionality. This class would be the concrete decorator for the
+ * CodecControl. The decorated component is Control, and an example of a concrete
+ * decorated component would be LdifControl.
  * 
  * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
  */
-public abstract class AbstractControl extends AbstractAsn1Object implements Control, CodecControl
+public class CodecControlDecorator extends AbstractAsn1Object implements Control, CodecControl
 {
     // ~ Instance fields
     // ----------------------------------------------------------------------------
-    /** The control type */
-    private String oid;
 
-    /** The criticality (default value is false) */
-    private boolean criticality = false;
+    /** The decorated Control */
+    private final Control decoratedComponent;
 
-    /** Optional control value */
-    protected byte[] value;
-    
     /** The encoded value length */
     protected int valueLength;
 
     /** The control length */
     private int controlLength;
-    
+
     /** The control decoder */
     protected ControlDecoder decoder;
 
+
     /**
      * Default constructor.
      */
-    public AbstractControl( String oid )
+    public CodecControlDecorator( Control decoratedComponent)
     {
-        this.oid = oid;
+        this.decoratedComponent = decoratedComponent;
     }
 
+
     /**
      * Get the OID
      * 
@@ -75,7 +75,7 @@ public abstract class AbstractControl ex
      */
     public String getOid()
     {
-        return oid == null ? "" : oid;
+        return decoratedComponent.getOid();
     }
 
 
@@ -86,25 +86,26 @@ public abstract class AbstractControl ex
      */
     public byte[] getValue()
     {
-        return value;
+        return decoratedComponent.getValue();
     }
 
 
     /**
      * Set the encoded control value
      * 
-     * @param encodedValue The encoded control value to store
+     * @param value The encoded control value to store
      */
     public void setValue( byte[] value )
     {
         if ( value != null )
         {
-            this.value = new byte[ value.length ];
-            System.arraycopy( value, 0, this.value, 0, value.length );
+            byte[] copy = new byte[ value.length ];
+            System.arraycopy( value, 0, copy, 0, value.length );
+            decoratedComponent.setValue( copy );
         } 
         else 
         {
-            this.value = null;
+            decoratedComponent.setValue( null );
         }
     }
 
@@ -116,7 +117,7 @@ public abstract class AbstractControl ex
      */
     public boolean isCritical()
     {
-        return criticality;
+        return decoratedComponent.isCritical();
     }
 
 
@@ -127,7 +128,7 @@ public abstract class AbstractControl ex
      */
     public void setCritical( boolean criticality )
     {
-        this.criticality = criticality;
+        decoratedComponent.setCritical( criticality );
     }
 
     
@@ -146,11 +147,11 @@ public abstract class AbstractControl ex
     public int computeLength( int valueLength )
     {
         // The OID
-        int oidLengh = Strings.getBytesUtf8(oid).length;
+        int oidLengh = Strings.getBytesUtf8( getOid() ).length;
         controlLength = 1 + TLV.getNbBytes( oidLengh ) + oidLengh;
 
         // The criticality, only if true
-        if ( criticality )
+        if ( isCritical() )
         {
             controlLength += 1 + 1 + 1; // Always 3 for a boolean
         }
@@ -193,9 +194,9 @@ public abstract class AbstractControl ex
         Value.encode( buffer, getOid().getBytes() );
 
         // The control criticality, if true
-        if ( criticality )
+        if ( isCritical() )
         {
-            Value.encode( buffer, criticality );
+            Value.encode( buffer, isCritical() );
         }
 
         return buffer;
@@ -207,7 +208,7 @@ public abstract class AbstractControl ex
      */
     public boolean hasValue()
     {
-        return value != null;
+        return decoratedComponent.hasValue();
     }
     
     
@@ -242,12 +243,12 @@ public abstract class AbstractControl ex
 
         Control otherControl = ( Control ) o;
         
-        if ( !oid.equalsIgnoreCase( otherControl.getOid() ) )
+        if ( !getOid().equalsIgnoreCase( otherControl.getOid() ) )
         {
             return false;
         }
-        
-        if ( criticality != otherControl.isCritical() )
+
+        if ( isCritical() != otherControl.isCritical() )
         {
             return false;
         }
@@ -264,13 +265,13 @@ public abstract class AbstractControl ex
         StringBuffer sb = new StringBuffer();
 
         sb.append( "    Control\n" );
-        sb.append( "        Control oid : '" ).append( oid ).append(
+        sb.append( "        Control oid : '" ).append( getOid() ).append(
             "'\n" );
-        sb.append( "        Criticality : '" ).append( criticality ).append( "'\n" );
+        sb.append( "        Criticality : '" ).append( isCritical() ).append( "'\n" );
 
-        if ( value != null )
+        if ( getValue() != null )
         {
-            sb.append( "        Control value : '" ).append( Strings.dumpBytes(value) )
+            sb.append( "        Control value : '" ).append( Strings.dumpBytes( getValue()
) )
                 .append( "'\n" );
         }
 



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