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/*
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* JBind
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*
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* Copyright (c) by Stefan Wachter. All rights reserved.
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*
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* Usage, modification, and redistribution is subject to license terms that are
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* available at 'http://www.jbind.org'. The JBind license is like the
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* 'Apache Software License V 1.1'.
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*/
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package org.jbind.xml.schema.element;
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import java.io.StringReader;
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import org.jbind.xml.base.IAttribute;
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import org.jbind.xml.core.bridge.IXPath;
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import org.jbind.xml.msg.IConstraintViolations;
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import org.jbind.xml.msg.XmlException;
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import org.jbind.xml.msg.XmlMessages;
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import org.jbind.xml.schema.instantiation.IElemValHelper;
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import org.jbind.xml.schema.xpath.ParseException;
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import org.jbind.xml.schema.xpath.XPathParser;
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public class XPathComponent extends Annotated implements IXPathComponent {
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private String myStringXPath = null;
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private IXPath myXPath = null;
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private boolean myIsRestrictedForm;
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private boolean myIsSelectorNotField;
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public XPathComponent(CreationParams aCreationParams, boolean anIsRestrictedForm, boolean anIsSelectorNotField) {
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super(aCreationParams);
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myIsRestrictedForm = anIsRestrictedForm;
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myIsSelectorNotField = anIsSelectorNotField;
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}
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protected IAttribute doCreateAttribute(ACParams anACParams) throws XmlException {
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IAttribute res = null;
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String an = NameUtil.getSchemaAttributeName(anACParams);
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if ("xpath".equals(an)) {
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res = new Attribute(anACParams);
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myStringXPath = res.getStringValue();
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checkSyntax();
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} else {
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res = super.doCreateAttribute(anACParams);
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}
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return res;
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}
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public void validateElement(IElemValHelper aHelper, IConstraintViolations aViolations) {
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super.validateElement(aHelper, aViolations);
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if (null == myStringXPath) {
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aViolations.add(XmlMessages.missingAttribute("xpath", this));
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} else {
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try {
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myXPath = aHelper.createXPath(myStringXPath, getPrefixToNamespaceMapping(), myIsRestrictedForm);
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} catch (Exception e) {
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aViolations.add(XmlMessages.invalidXPath(myStringXPath, e, this));
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}
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}
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}
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private void checkSyntax() throws XmlException {
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if (myIsRestrictedForm) {
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XPathParser xpParser = new XPathParser(new StringReader(myStringXPath));
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try {
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if (myIsSelectorNotField) {
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xpParser.Selector();
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} else {
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xpParser.Field();
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}
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} catch (ParseException e) {
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throw new XmlException(XmlMessages.invalidXPath(myStringXPath, e, this));
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}
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}
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}
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public IXPath getXPath() {
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return myXPath;
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}
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}
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