jvanzyl 2004/01/06 10:09:14 Added: src/java/org/apache/maven/jelly/tags/maven PropertyTag.java Log: o adding a property tag which allows the specification of a default value. Revision Changes Path 1.1 maven/src/java/org/apache/maven/jelly/tags/maven/PropertyTag.java Index: PropertyTag.java =================================================================== package org.apache.maven.jelly.tags.maven; /* ==================================================================== * 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 acknowledgment: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Apache" and "Apache Software Foundation" and * "Apache Maven" must not be used to endorse or promote products * derived from this software without prior written permission. For * written permission, please contact [EMAIL PROTECTED] * * 5. Products derived from this software may not be called "Apache", * "Apache Maven", nor may "Apache" appear in their name, without * prior written permission of the Apache Software Foundation. * * 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/>. * * ==================================================================== */ import org.apache.commons.jelly.JellyTagException; import org.apache.commons.jelly.MissingAttributeException; import org.apache.commons.jelly.XMLOutput; import org.apache.maven.jelly.tags.BaseTagSupport; import org.apache.maven.MavenUtils; import java.io.File; import java.io.IOException; /** * A Maven Jelly tag that attempts to retrieve a property from the MavenJellyContext * context and uses the provided default value in the event there is no valid value * retrieved using the key name provided. * * Usage: * * <maven:property name="maven.xdoc.version" defaultValue="${pom.currentVersion}"/> * * @author <a href="mailto:[EMAIL PROTECTED]">Jason van Zyl</a> * */ public class PropertyTag extends BaseTagSupport { private String name; private String defaultValue; public void setName( String name ) { this.name = name; } public void setDefaultValue( String defaultValue ) { this.defaultValue = defaultValue; } /* (non-Javadoc) * @see org.apache.commons.jelly.Tag#doTag(org.apache.commons.jelly.XMLOutput) */ public void doTag( XMLOutput output ) throws MissingAttributeException, JellyTagException { checkAttribute( name, "name" ); checkAttribute( defaultValue, "defaultValue" ); String property = (String) getMavenContext().getVariable( name ); if ( property == null || property.trim().length() == 0 ) { getMavenContext().setVariable( name, defaultValue ); } } }
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
