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Posted to dev@commons.apache.org by di...@apache.org on 2002/11/16 11:15:46 UTC
cvs commit: jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/util ReplaceTag.java
dion 2002/11/16 02:15:46
Modified: jelly/src/test/org/apache/commons/jelly/util suite.jelly
Added: jelly/src/java/org/apache/commons/jelly/tags/util
ReplaceTag.java
Log:
Add a replace tag and some tests
Revision Changes Path
1.4 +20 -0 jakarta-commons-sandbox/jelly/src/test/org/apache/commons/jelly/util/suite.jelly
Index: suite.jelly
===================================================================
RCS file: /home/cvs/jakarta-commons-sandbox/jelly/src/test/org/apache/commons/jelly/util/suite.jelly,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- suite.jelly 13 Nov 2002 12:59:35 -0000 1.3
+++ suite.jelly 16 Nov 2002 10:15:45 -0000 1.4
@@ -80,5 +80,25 @@
</util:available>
</test:case>
+
+ <test:case name="testReplace">
+
+ <util:replace oldChar="\" newChar="/" var="testString">A\B</util:replace>
+ <test:assertEquals expected="A/B" actual="${testString}">
+ Should have replaced a back slash with a forward one
+ </test:assertEquals>
+
+ <j:set var="testString2"><util:replace oldChar="\" newChar="/">A\B</util:replace></j:set>
+ <test:assertEquals expected="A/B" actual="${testString2}">
+ Should have replaced a back slash with a forward one
+ and placed the result into output
+ </test:assertEquals>
+
+ <util:replace oldChar="/" newChar="\" value="${testString}" var="testString3" />
+ <test:assertEquals expected="A\B" actual="${testString3}">
+ Should have replaced a slash with a back slash from a variable
+ and placed the result into a variable
+ </test:assertEquals>
+ </test:case>
</test:suite>
1.1 jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/util/ReplaceTag.java
Index: ReplaceTag.java
===================================================================
/*
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.commons.jelly.tags.util;
import org.apache.commons.jelly.expression.Expression;
import org.apache.commons.jelly.MissingAttributeException;
import org.apache.commons.jelly.TagSupport;
import org.apache.commons.jelly.XMLOutput;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* A tag that replaces occurrences of strings in its body (or value)
* and places the result into the context
*
* @author dion
*/
public class ReplaceTag extends TagSupport {
/** The Log to which logging calls will be made. */
private static final Log log = LogFactory.getLog(ReplaceTag.class);
/** The variable name to export. */
private String var;
/** The expression to evaluate. */
private Expression value;
/** the old character to be replaced */
private String oldChar;
/** the new character that will replace the old */
private String newChar;
// Tag interface
//-------------------------------------------------------------------------
public void doTag(XMLOutput output) throws Exception {
// check required properties
if (oldChar == null) {
throw new MissingAttributeException("oldChar must be provided");
}
if (newChar == null) {
throw new MissingAttributeException("newChar must be provided");
}
// get either the value or the body of the tag
Object answer = null;
if ( value != null ) {
answer = value.evaluate(context);
} else {
answer = getBodyText(false);
}
// set the result in the context, or output it
if (answer != null) {
String stringAnswer = answer.toString().replace(oldChar.charAt(0),
newChar.charAt(0));
if ( var != null ) {
context.setVariable(var, stringAnswer);
} else {
output.write(stringAnswer);
}
}
}
/**
* Returns the newChar used in replacing. Should only be a single
* character.
* @return String
*/
public String getNewChar()
{
return newChar;
}
/**
* Returns the oldChar that will be replaced. Should only be a single
* character.
* @return String
*/
public String getOldChar()
{
return oldChar;
}
/**
* Returns the value.
* @return Expression
*/
public Expression getValue()
{
return value;
}
/**
* Returns the var.
* @return String
*/
public String getVar()
{
return var;
}
/**
* Sets the newChar.
* @param newChar The newChar to set
*/
public void setNewChar(String newChar)
{
this.newChar = newChar;
}
/**
* Sets the oldChar.
* @param oldChar The oldChar to set
*/
public void setOldChar(String oldChar)
{
this.oldChar = oldChar;
}
/**
* Sets the value.
* @param value The value to set
*/
public void setValue(Expression value)
{
this.value = value;
}
/**
* Sets the var.
* @param var The var to set
*/
public void setVar(String var)
{
this.var = var;
}
}
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