112 lines
4.5 KiB
Java
112 lines
4.5 KiB
Java
/**
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*
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* Copyright 2014 Anno van Vliet
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.xdatavalidation.provider;
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import java.io.IOException;
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import java.util.logging.Logger;
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import javax.xml.namespace.QName;
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import org.jivesoftware.smack.packet.XmlEnvironment;
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import org.jivesoftware.smack.util.ParserUtils;
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import org.jivesoftware.smack.xml.XmlPullParser;
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import org.jivesoftware.smack.xml.XmlPullParserException;
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import org.jivesoftware.smackx.xdata.provider.FormFieldChildElementProvider;
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import org.jivesoftware.smackx.xdatavalidation.packet.ValidateElement;
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import org.jivesoftware.smackx.xdatavalidation.packet.ValidateElement.BasicValidateElement;
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import org.jivesoftware.smackx.xdatavalidation.packet.ValidateElement.ListRange;
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import org.jivesoftware.smackx.xdatavalidation.packet.ValidateElement.OpenValidateElement;
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import org.jivesoftware.smackx.xdatavalidation.packet.ValidateElement.RangeValidateElement;
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import org.jivesoftware.smackx.xdatavalidation.packet.ValidateElement.RegexValidateElement;
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/**
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* Extension Provider for Data validation of forms.
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*
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* @author Anno van Vliet
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*
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*/
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public class DataValidationProvider extends FormFieldChildElementProvider<ValidateElement> {
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private static final Logger LOGGER = Logger.getLogger(DataValidationProvider.class.getName());
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@Override
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public ValidateElement parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment)
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throws XmlPullParserException, IOException {
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final String dataType = parser.getAttributeValue("", "datatype");
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ValidateElement dataValidation = null;
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ListRange listRange = null;
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outerloop: while (true) {
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XmlPullParser.Event eventType = parser.next();
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switch (eventType) {
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case START_ELEMENT:
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String name = parser.getName();
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switch (name) {
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case OpenValidateElement.METHOD:
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dataValidation = new OpenValidateElement(dataType);
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break;
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case BasicValidateElement.METHOD:
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dataValidation = new BasicValidateElement(dataType);
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break;
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case RangeValidateElement.METHOD:
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dataValidation = new RangeValidateElement(dataType,
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parser.getAttributeValue("", "min"),
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parser.getAttributeValue("", "max")
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);
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break;
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case RegexValidateElement.METHOD:
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dataValidation = new RegexValidateElement(dataType, parser.nextText());
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break;
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case ListRange.ELEMENT:
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Long min = ParserUtils.getLongAttribute(parser, "min");
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Long max = ParserUtils.getLongAttribute(parser, "max");
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if (min != null || max != null) {
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listRange = new ListRange(min, max);
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} else {
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LOGGER.fine("Ignoring list-range element without min or max attribute");
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}
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break;
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default:
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break;
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}
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break;
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case END_ELEMENT:
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if (parser.getDepth() == initialDepth) {
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if (dataValidation == null) {
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// XEP-122 § 3.2 states that "If no validation method is specified,
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// form processors MUST assume <basic/> validation."
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dataValidation = new BasicValidateElement(dataType);
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}
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dataValidation.setListRange(listRange);
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break outerloop;
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}
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break;
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default:
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// Catch all for incomplete switch (MissingCasesInEnumSwitch) statement.
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break;
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}
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}
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return dataValidation;
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}
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@Override
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public QName getQName() {
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return ValidateElement.QNAME;
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}
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}
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