Java tutorial
// Copyright 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.tapestry.parse; import org.apache.commons.beanutils.PropertyUtils; import org.apache.tapestry.Tapestry; import org.xml.sax.Attributes; /** * Much like {@link org.apache.commons.digester.SetPropertiesRule}, but * only properties that are declared will be copied; other properties * will be ignored. * * @author Howard Lewis Ship * @version $Id: SetLimitedPropertiesRule.java,v 1.8 2004/02/19 17:37:41 hlship Exp $ * @since 3.0 * **/ public class SetLimitedPropertiesRule extends AbstractSpecificationRule { private String[] _attributeNames; private String[] _propertyNames; public SetLimitedPropertiesRule(String attributeName, String propertyName) { this(new String[] { attributeName }, new String[] { propertyName }); } public SetLimitedPropertiesRule(String[] attributeNames, String[] propertyNames) { _attributeNames = attributeNames; _propertyNames = propertyNames; } public void begin(String namespace, String name, Attributes attributes) throws Exception { Object top = digester.peek(); int count = attributes.getLength(); for (int i = 0; i < count; i++) { String attributeName = attributes.getLocalName(i); if (Tapestry.isBlank(attributeName)) attributeName = attributes.getQName(i); for (int x = 0; x < _attributeNames.length; x++) { if (_attributeNames[x].equals(attributeName)) { String value = attributes.getValue(i); String propertyName = _propertyNames[x]; PropertyUtils.setProperty(top, propertyName, value); // Terminate inner loop when attribute name is found. break; } } } } }