/*
* Copyright 2002,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.jelly.util;
import org.apache.commons.jelly.JellyTagException;
import org.apache.commons.jelly.Script;
import org.apache.commons.jelly.impl.CompositeTextScriptBlock;
import org.apache.commons.jelly.impl.ScriptBlock;
import org.apache.commons.jelly.impl.TextScript;
import org.apache.commons.jelly.impl.WeakReferenceWrapperScript;
/** Contains static methods to help tag developers.
* @author Hans Gilde
*
*/
public class TagUtils {
private TagUtils() {
}
/** Trims the whitespace from a script and its children.
*
*/
public static void trimScript(Script body) {
synchronized(body) {
if (body instanceof WeakReferenceWrapperScript) {
WeakReferenceWrapperScript wrrs = (WeakReferenceWrapperScript) body;
try {
wrrs.trimWhitespace();
} catch (JellyTagException e) {
//TODO handle this exception once the Tag interface allows JellyTagException to be thrown
return;
}
} else if ( body instanceof CompositeTextScriptBlock ) {
CompositeTextScriptBlock block = (CompositeTextScriptBlock) body;
block.trimWhitespace();
}
else
if ( body instanceof ScriptBlock ) {
ScriptBlock block = (ScriptBlock) body;
block.trimWhitespace();
}
else if ( body instanceof TextScript ) {
TextScript textScript = (TextScript) body;
textScript.trimWhitespace();
}
}
}
}