cedric 01/09/10 05:52:11
Modified: contrib/tiles/src/share/org/apache/struts/tiles
ComponentContext.java
Log:
Add convenience methods to allow Tile context access from a Struts action.
Revision Changes Path
1.2 +61 -8
jakarta-struts/contrib/tiles/src/share/org/apache/struts/tiles/ComponentContext.java
Index: ComponentContext.java
===================================================================
RCS file:
/home/cvs/jakarta-struts/contrib/tiles/src/share/org/apache/struts/tiles/ComponentContext.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- ComponentContext.java 2001/08/01 14:36:42 1.1
+++ ComponentContext.java 2001/09/10 12:52:11 1.2
@@ -1,7 +1,7 @@
/*
- * $Header:
/home/cvs/jakarta-struts/contrib/tiles/src/share/org/apache/struts/tiles/ComponentContext.java,v
1.1 2001/08/01 14:36:42 cedric Exp $
- * $Revision: 1.1 $
- * $Date: 2001/08/01 14:36:42 $
+ * $Header:
/home/cvs/jakarta-struts/contrib/tiles/src/share/org/apache/struts/tiles/ComponentContext.java,v
1.2 2001/09/10 12:52:11 cedric Exp $
+ * $Revision: 1.2 $
+ * $Date: 2001/09/10 12:52:11 $
* $Author: cedric $
*
*/
@@ -12,6 +12,7 @@
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
+import java.util.Set;
import javax.servlet.ServletRequest;
import javax.servlet.jsp.PageContext;
@@ -22,7 +23,7 @@
*/
public class ComponentContext
{
-
+
/**
* Component attributes.
*/
@@ -68,10 +69,55 @@
}
/**
+ * Add all attributes to this context.
+ * Copies all of the mappings from the specified attribute map to this context.
+ * New attribute mappings will replace any mappings that this context had for any
of the keys
+ * currently in the specified attribute map.
+ * @param attributes to add.
+ */
+ public void addAll(Map newAttributes)
+ {
+ if( attributes == null )
+ {
+ attributes = new HashMap(newAttributes);
+ return;
+ }
+ attributes.putAll( newAttributes );
+ }
+
+ /**
+ * Add all missing attributes to this context.
+ * Copies all of the mappings from the specified attributes map to this context.
+ * New attribute mappings will be added only if they don't already exist in
+ * this context.
+ * @param attributes to add.
+ */
+ public void addMissing(Map defaultAttributes)
+ {
+ if( defaultAttributes == null )
+ return;
+ if( attributes == null )
+ {
+ attributes = new HashMap(defaultAttributes);
+ return;
+ }
+
+ Set entries = defaultAttributes.entrySet();
+ Iterator iterator = entries.iterator();
+ while( iterator.hasNext() )
+ {
+ Map.Entry entry = (Map.Entry)iterator.next();
+ if( !attributes.containsKey( entry.getKey()) )
+ {
+ attributes.put(entry.getKey(), entry.getValue());
+ } // end if
+ } // end loop
+ }
+
+ /**
* Get an attribute from context
* @param name
* @return <{Object}>
- * @roseuid 39AEBEC90228
*/
public Object getAttribute(String name)
{
@@ -79,12 +125,11 @@
return null;
return attributes.get( name );
}
-
+
/**
* Get names of all attributes
* @param name
* @return <{Object}>
- * @roseuid 39AEBEC90228
*/
public Iterator getAttributeNames()
{
@@ -92,7 +137,7 @@
return EMPTY_ITERATOR;
return attributes.keySet().iterator();
}
-
+
/**
* Put a new attribute to context.
* @param name
@@ -168,6 +213,14 @@
static public ComponentContext getContext( ServletRequest request )
{
return
(ComponentContext)request.getAttribute(ComponentConstants.COMPONENT_CONTEXT);
+ }
+
+ /**
+ * Store component context into request.
+ */
+ static public void setContext( ComponentContext context, ServletRequest request )
+ {
+ request.setAttribute(ComponentConstants.COMPONENT_CONTEXT, context);
}
}
