| author | joehw |
| Tue, 27 Jan 2015 22:01:46 -0800 | |
| changeset 28695 | 427254b89b9e |
| parent 25868 | 686eef1e7a79 |
| child 39907 | db51759e3695 |
| permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved. |
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*/ |
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/* |
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* Copyright 1999-2004 The Apache Software Foundation. |
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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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// $Id: XPathImpl.java,v 1.2 2005/08/16 22:41:08 jeffsuttor Exp $ |
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package com.sun.org.apache.xpath.internal.jaxp; |
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import javax.xml.namespace.QName; |
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import javax.xml.namespace.NamespaceContext; |
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import javax.xml.xpath.XPathExpressionException; |
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import javax.xml.xpath.XPathConstants; |
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import javax.xml.xpath.XPathFunctionResolver; |
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import javax.xml.xpath.XPathVariableResolver; |
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import javax.xml.xpath.XPathExpression; |
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import com.sun.org.apache.xpath.internal.*; |
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import com.sun.org.apache.xpath.internal.objects.XObject; |
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21467
ed77f0ff062c
8004476: XSLT Extension Functions Don't Work in WebStart
joehw
parents:
12458
diff
changeset
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import com.sun.org.apache.xalan.internal.utils.FeatureManager; |
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import org.w3c.dom.Document; |
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import org.xml.sax.InputSource; |
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import javax.xml.transform.TransformerException; |
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import javax.xml.xpath.XPathEvaluationResult; |
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/** |
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* The XPathImpl class provides implementation for the methods defined in |
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* javax.xml.xpath.XPath interface. This provides simple access to the results |
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* of an XPath expression. |
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* |
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* @author Ramesh Mandava |
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* |
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* Updated 12/04/2014: |
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* New methods: evaluateExpression |
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* Refactored to share code with XPathExpressionImpl. |
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*/ |
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public class XPathImpl extends XPathImplUtil implements javax.xml.xpath.XPath {
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// Private variables |
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private XPathVariableResolver origVariableResolver; |
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private XPathFunctionResolver origFunctionResolver; |
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private NamespaceContext namespaceContext=null; |
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XPathImpl(XPathVariableResolver vr, XPathFunctionResolver fr) {
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21467
ed77f0ff062c
8004476: XSLT Extension Functions Don't Work in WebStart
joehw
parents:
12458
diff
changeset
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this(vr, fr, false, true, new FeatureManager()); |
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} |
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XPathImpl(XPathVariableResolver vr, XPathFunctionResolver fr, |
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21467
ed77f0ff062c
8004476: XSLT Extension Functions Don't Work in WebStart
joehw
parents:
12458
diff
changeset
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boolean featureSecureProcessing, boolean useServiceMechanism, |
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ed77f0ff062c
8004476: XSLT Extension Functions Don't Work in WebStart
joehw
parents:
12458
diff
changeset
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FeatureManager featureManager) {
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this.origVariableResolver = this.variableResolver = vr; |
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this.origFunctionResolver = this.functionResolver = fr; |
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this.featureSecureProcessing = featureSecureProcessing; |
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this.useServiceMechanism = useServiceMechanism; |
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21467
ed77f0ff062c
8004476: XSLT Extension Functions Don't Work in WebStart
joehw
parents:
12458
diff
changeset
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this.featureManager = featureManager; |
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} |
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//-Override- |
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public void setXPathVariableResolver(XPathVariableResolver resolver) {
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requireNonNull(resolver, "XPathVariableResolver"); |
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this.variableResolver = resolver; |
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} |
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//-Override- |
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public XPathVariableResolver getXPathVariableResolver() {
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return variableResolver; |
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} |
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//-Override- |
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public void setXPathFunctionResolver(XPathFunctionResolver resolver) {
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requireNonNull(resolver, "XPathFunctionResolver"); |
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this.functionResolver = resolver; |
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} |
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//-Override- |
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public XPathFunctionResolver getXPathFunctionResolver() {
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return functionResolver; |
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} |
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//-Override- |
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public void setNamespaceContext(NamespaceContext nsContext) {
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requireNonNull(nsContext, "NamespaceContext"); |
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this.namespaceContext = nsContext; |
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this.prefixResolver = new JAXPPrefixResolver (nsContext); |
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} |
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//-Override- |
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public NamespaceContext getNamespaceContext() {
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return namespaceContext; |
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} |
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/** |
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* Evaluate an {@code XPath} expression in the specified context.
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* @param expression The XPath expression. |
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* @param contextItem The starting context. |
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* @return an XObject as the result of evaluating the expression |
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* @throws TransformerException if evaluating fails |
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*/ |
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private XObject eval(String expression, Object contextItem) |
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throws TransformerException {
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requireNonNull(expression, "XPath expression"); |
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com.sun.org.apache.xpath.internal.XPath xpath = new com.sun.org.apache.xpath.internal.XPath(expression, |
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null, prefixResolver, com.sun.org.apache.xpath.internal.XPath.SELECT); |
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return eval(contextItem, xpath); |
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} |
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//-Override- |
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public Object evaluate(String expression, Object item, QName returnType) |
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throws XPathExpressionException {
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//this check is necessary before calling eval to maintain binary compatibility |
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requireNonNull(expression, "XPath expression"); |
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isSupported(returnType); |
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try {
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XObject resultObject = eval(expression, item); |
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return getResultAsType(resultObject, returnType); |
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} catch (java.lang.NullPointerException npe) {
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// If VariableResolver returns null Or if we get |
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// NullPointerException at this stage for some other reason |
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// then we have to reurn XPathException |
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throw new XPathExpressionException (npe); |
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} catch (TransformerException te) {
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Throwable nestedException = te.getException(); |
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if (nestedException instanceof javax.xml.xpath.XPathFunctionException) {
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throw (javax.xml.xpath.XPathFunctionException)nestedException; |
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} else {
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// For any other exceptions we need to throw |
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// XPathExpressionException (as per spec) |
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throw new XPathExpressionException (te); |
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} |
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} |
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} |
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//-Override- |
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public String evaluate(String expression, Object item) |
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throws XPathExpressionException {
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return (String)this.evaluate(expression, item, XPathConstants.STRING); |
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} |
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//-Override- |
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public XPathExpression compile(String expression) |
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throws XPathExpressionException {
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requireNonNull(expression, "XPath expression"); |
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try {
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com.sun.org.apache.xpath.internal.XPath xpath = new XPath (expression, null, |
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prefixResolver, com.sun.org.apache.xpath.internal.XPath.SELECT); |
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// Can have errorListener |
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XPathExpressionImpl ximpl = new XPathExpressionImpl (xpath, |
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prefixResolver, functionResolver, variableResolver, |
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featureSecureProcessing, useServiceMechanism, featureManager); |
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return ximpl; |
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} catch (TransformerException te) {
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throw new XPathExpressionException (te) ; |
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} |
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} |
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//-Override- |
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public Object evaluate(String expression, InputSource source, |
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QName returnType) throws XPathExpressionException {
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isSupported(returnType); |
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try {
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Document document = getDocument(source); |
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XObject resultObject = eval(expression, document); |
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return getResultAsType(resultObject, returnType); |
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} catch (TransformerException te) {
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Throwable nestedException = te.getException(); |
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if (nestedException instanceof javax.xml.xpath.XPathFunctionException) {
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throw (javax.xml.xpath.XPathFunctionException)nestedException; |
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} else {
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throw new XPathExpressionException (te); |
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} |
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} |
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} |
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//-Override- |
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public String evaluate(String expression, InputSource source) |
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throws XPathExpressionException {
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return (String)this.evaluate(expression, source, XPathConstants.STRING); |
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} |
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//-Override- |
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public void reset() {
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this.variableResolver = this.origVariableResolver; |
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this.functionResolver = this.origFunctionResolver; |
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this.namespaceContext = null; |
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} |
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//-Override- |
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public <T> T evaluateExpression(String expression, Object item, Class<T> type) |
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throws XPathExpressionException {
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isSupportedClassType(type); |
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try {
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XObject resultObject = eval(expression, item); |
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if (type.isAssignableFrom(XPathEvaluationResult.class)) {
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return getXPathResult(resultObject, type); |
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} else {
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return XPathResultImpl.getValue(resultObject, type); |
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} |
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} catch (TransformerException te) {
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throw new XPathExpressionException (te); |
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} |
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} |
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//-Override- |
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public XPathEvaluationResult<?> evaluateExpression(String expression, Object item) |
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throws XPathExpressionException {
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return evaluateExpression(expression, item, XPathEvaluationResult.class); |
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} |
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//-Override- |
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public <T> T evaluateExpression(String expression, InputSource source, Class<T> type) |
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throws XPathExpressionException {
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Document document = getDocument(source); |
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return evaluateExpression(expression, document, type); |
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} |
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//-Override- |
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public XPathEvaluationResult<?> evaluateExpression(String expression, InputSource source) |
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throws XPathExpressionException {
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return evaluateExpression(expression, source, XPathEvaluationResult.class); |
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} |
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} |