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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.instance.impl;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import org.jaxen.BaseXPath;
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import org.jaxen.JaxenException;
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import org.jaxen.NamespaceContext;
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import org.jbind.xml.core.bridge.IDataImpl;
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import org.jbind.xml.core.bridge.IXPath;
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import org.jbind.xml.core.bridge.IXPathFactory;
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import org.jbind.xml.core.bridge.XPath;
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import org.jbind.xml.msg.XmlException;
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import org.jbind.xml.msg.XmlMessages;
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public class JaxenXPathFactory implements IXPathFactory {
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public JaxenXPathFactory() {}
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147
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public IXPath createXPath(String anXPath, Map aPrefixMapping, boolean aRestrictedForm) throws Exception {
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return new JaxenXPath(anXPath, aPrefixMapping);
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}
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private static class JaxenXPath extends XPath implements IXPath {
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private BaseXPath myXPath;
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147
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public JaxenXPath(String anXPath, final Map aPrefixMapping) throws Exception {
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147
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super(anXPath);
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myXPath = new BaseXPath(anXPath, ImplNavigator.ourImplNavigator);
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NamespaceContext namespaceContext = new NamespaceContext() {
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5788
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public String translateNamespacePrefixToUri(String prefix) {
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5788
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if ("".equals(prefix)) {
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return null;
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}
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return (String)aPrefixMapping.get(prefix);
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}
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};
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myXPath.setNamespaceContext(namespaceContext);
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}
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377
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public Iterator select(IDataImpl aData) throws XmlException {
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try {
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List l = myXPath.selectNodes(aData);
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return l.iterator();
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} catch (JaxenException e) {
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throw new XmlException(XmlMessages.xPathException(getXPath(), e, aData));
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}
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}
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public boolean test(IDataImpl aData) throws XmlException {
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try {
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return myXPath.booleanValueOf(aData);
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} catch (JaxenException e) {
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throw new XmlException(XmlMessages.xPathException(getXPath(), e, aData));
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}
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}
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public double number(IDataImpl aData) throws XmlException {
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1
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try {
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return myXPath.numberValueOf(aData).doubleValue();
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} catch (JaxenException e) {
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throw new XmlException(XmlMessages.xPathException(getXPath(), e, aData));
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}
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}
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public String string(IDataImpl aData) throws XmlException {
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try {
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return myXPath.stringValueOf(aData);
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} catch (JaxenException e) {
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throw new XmlException(XmlMessages.xPathException(getXPath(), e, aData));
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}
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}
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}
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}
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