| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001 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", "Ant", 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.ant.core.xml; |
| |
| import org.xml.sax.helpers.DefaultHandler; |
| import org.xml.sax.*; |
| import java.util.*; |
| |
| |
| /** |
| * Validates and extracts attribute values from a set of element attributes. |
| * |
| * @author <a href="mailto:conor@apache.org">Conor MacNeill</a> |
| */ |
| public abstract class AttributeValidator { |
| static public Map validateAttributes(String elementName, Attributes attributes, |
| Set validAttributes, Locator locator) |
| throws SAXParseException { |
| |
| return validateAttributes(elementName, attributes, null, validAttributes, locator); |
| } |
| |
| static public Map validateAttributes(String elementName, Attributes attributes, Map aspects, |
| Set validAttributes, Locator locator) |
| throws SAXParseException { |
| |
| Map attributeValues = new HashMap(); |
| Set invalidAttributes = new HashSet(); |
| for (int i = 0; i < attributes.getLength(); ++i) { |
| String attributeName = attributes.getQName(i); |
| String attributeValue = attributes.getValue(i); |
| if (validAttributes.contains(attributeName)) { |
| attributeValues.put(attributeName, attributeValue); |
| } |
| else if (aspects != null && attributeName.indexOf(":") != -1) { |
| aspects.put(attributeName, attributeValue); |
| } |
| else { |
| invalidAttributes.add(attributeName); |
| } |
| } |
| |
| if (invalidAttributes.size() != 0) { |
| StringBuffer message = new StringBuffer(); |
| boolean justOne = invalidAttributes.size() == 1; |
| message.append(justOne ? "The attribute " : "The attributes "); |
| for (Iterator i = invalidAttributes.iterator(); i.hasNext();) { |
| String attributeName = (String)i.next(); |
| message.append(attributeName + " "); |
| } |
| message.append(justOne ? "is " : "are "); |
| message.append("not valid for the <" + elementName + "> element."); |
| |
| throw new SAXParseException(message.toString(), locator); |
| } |
| |
| return attributeValues; |
| } |
| |
| } |