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Posted to dev@commons.apache.org by js...@apache.org on 2003/02/20 19:56:16 UTC
cvs commit: jakarta-commons/jelly/jelly-tags/bsf/src/java/org/apache/commons/jelly/tags/bsf ScriptTag.java BSFTagLibrary.java
jstrachan 2003/02/20 10:56:16
Modified: jelly/jelly-tags/bsf/src/java/org/apache/commons/jelly/tags/bsf
BSFTagLibrary.java
Added: jelly/jelly-tags/bsf/src/java/org/apache/commons/jelly/tags/bsf
ScriptTag.java
Log:
Added an initial version of a <script> tag to the BSF library which should be usable in JavaScript, Jython, PNuts etc
Revision Changes Path
1.2 +41 -3 jakarta-commons/jelly/jelly-tags/bsf/src/java/org/apache/commons/jelly/tags/bsf/BSFTagLibrary.java
Index: BSFTagLibrary.java
===================================================================
RCS file: /home/cvs/jakarta-commons/jelly/jelly-tags/bsf/src/java/org/apache/commons/jelly/tags/bsf/BSFTagLibrary.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- BSFTagLibrary.java 8 Jan 2003 05:02:47 -0000 1.1
+++ BSFTagLibrary.java 20 Feb 2003 18:56:16 -0000 1.2
@@ -61,8 +61,15 @@
*/
package org.apache.commons.jelly.tags.bsf;
+import org.apache.commons.jelly.JellyException;
+import org.apache.commons.jelly.Tag;
import org.apache.commons.jelly.expression.ExpressionFactory;
+import org.apache.commons.jelly.impl.TagFactory;
import org.apache.commons.jelly.tags.core.CoreTagLibrary;
+import org.xml.sax.Attributes;
+
+import com.ibm.bsf.BSFEngine;
+import com.ibm.bsf.BSFException;
/** Describes the Taglib. This class could be generated by XDoclet
@@ -74,6 +81,18 @@
private BSFExpressionFactory expressionFactory = new BSFExpressionFactory();
+ public BSFTagLibrary() {
+ registerTagFactory(
+ "script",
+ new TagFactory() {
+ public Tag createTag(String name, Attributes attributes)
+ throws JellyException {
+ return createScriptTag(name, attributes);
+ }
+ }
+ );
+ }
+
public void setLanguage(String language) {
expressionFactory.setLanguage(language);
}
@@ -83,4 +102,23 @@
return expressionFactory;
}
+ protected BSFEngine getBSFEngine() throws BSFException {
+ return expressionFactory.getBSFEngine();
+ }
+
+ /**
+ * Factory method to create a new ScriptTag with a BSFEngine
+ *
+ * @param name is the name of the tag (typically 'script')
+ * @param attributes the attributes of the tag
+ * @return Tag
+ */
+ protected Tag createScriptTag(String name, Attributes attributes) throws JellyException {
+ try {
+ return new ScriptTag( expressionFactory.getBSFEngine() );
+ }
+ catch (BSFException e) {
+ throw new JellyException("Failed to create BSFEngine: " + e, e);
+ }
+ }
}
1.1 jakarta-commons/jelly/jelly-tags/bsf/src/java/org/apache/commons/jelly/tags/bsf/ScriptTag.java
Index: ScriptTag.java
===================================================================
/*
* $Header: /home/cvs/jakarta-commons/jelly/jelly-tags/bsf/src/java/org/apache/commons/jelly/tags/bsf/ScriptTag.java,v 1.1 2003/02/20 18:56:16 jstrachan Exp $
* $Revision: 1.1 $
* $Date: 2003/02/20 18:56:16 $
*
* ====================================================================
*
* 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", "Commons", 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/>.
*
* $Id: ScriptTag.java,v 1.1 2003/02/20 18:56:16 jstrachan Exp $
*/
package org.apache.commons.jelly.tags.bsf;
import org.apache.commons.jelly.JellyTagException;
import org.apache.commons.jelly.LocationAware;
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;
import com.ibm.bsf.BSFEngine;
import com.ibm.bsf.BSFException;
/**
* A tag which evaluates its body using the current scripting language
*
* @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
* @version $Revision: 1.1 $
*/
public class ScriptTag extends TagSupport implements LocationAware {
/** The Log to which logging calls will be made. */
private static final Log log = LogFactory.getLog(ScriptTag.class.getName() + ".evaluating");
private BSFEngine engine;
private String elementName;
private String fileName;
private int columnNumber;
private int lineNumber;
public ScriptTag(BSFEngine engine) {
this.engine = engine;
}
// Tag interface
//-------------------------------------------------------------------------
public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException {
String text = getBodyText();
log.debug(text);
try {
engine.eval(fileName, lineNumber, columnNumber, text);
}
catch (BSFException e) {
throw new JellyTagException("Error occurred with script: " + e, e);
}
}
// Properties
//-------------------------------------------------------------------------
/**
* @return int
*/
public int getColumnNumber() {
return columnNumber;
}
/**
* @return String
*/
public String getElementName() {
return elementName;
}
/**
* @return BSFEngine
*/
public BSFEngine getEngine() {
return engine;
}
/**
* @return String
*/
public String getFileName() {
return fileName;
}
/**
* @return int
*/
public int getLineNumber() {
return lineNumber;
}
/**
* Sets the columnNumber.
* @param columnNumber The columnNumber to set
*/
public void setColumnNumber(int columnNumber) {
this.columnNumber = columnNumber;
}
/**
* Sets the elementName.
* @param elementName The elementName to set
*/
public void setElementName(String elementName) {
this.elementName = elementName;
}
/**
* Sets the engine.
* @param engine The engine to set
*/
public void setEngine(BSFEngine engine) {
this.engine = engine;
}
/**
* Sets the fileName.
* @param fileName The fileName to set
*/
public void setFileName(String fileName) {
this.fileName = fileName;
}
/**
* Sets the lineNumber.
* @param lineNumber The lineNumber to set
*/
public void setLineNumber(int lineNumber) {
this.lineNumber = lineNumber;
}
}
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