Convert DefaultDocumentLoader to UNIX line breaks
This commit is contained in:
Rossen Stoyanchev
@@ -1,120 +1,120 @@
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/*
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* Copyright 2004-2008 the original author or authors.
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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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* https://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.springframework.webflow.engine.model.builder.xml;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.core.io.Resource;
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import org.springframework.util.xml.SimpleSaxErrorHandler;
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import org.w3c.dom.Document;
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import org.xml.sax.EntityResolver;
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import org.xml.sax.SAXException;
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/**
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* The default document loader strategy for XSD-based XML documents with validation enabled by default.
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* <p>
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* Note: full XSD support requires JDK 5.0 or a capable parser such as Xerces 2.0. JDK 1.4 or less do not fully support XSD
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* out of the box. To use this implementation on JDK 1.4 make sure Xerces is available in your classpath or disable XSD
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* validation by {@link #setValidating(boolean) setting the validating property to false}.
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*
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* @author Keith Donald
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*/
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public class DefaultDocumentLoader implements DocumentLoader {
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private static final Log logger = LogFactory.getLog(DefaultDocumentLoader.class);
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/**
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* JAXP attribute used to configure the schema language for validation.
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*/
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private static final String SCHEMA_LANGUAGE_ATTRIBUTE = "https://java.sun.com/xml/jaxp/properties/schemaLanguage";
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/**
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* JAXP attribute value indicating the XSD schema language.
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*/
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private static final String XSD_SCHEMA_LANGUAGE = "http://www.w3.org/2001/XMLSchema";
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/**
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* Flag indicating if the XML document parser will perform schema validation.
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*/
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private boolean validating = true;
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/**
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* The spring-webflow schema resolution strategy.
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*/
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private EntityResolver entityResolver = new WebFlowEntityResolver();
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/**
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* Returns whether or not the XML parser will validate the document.
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*/
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public boolean isValidating() {
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return validating;
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}
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/**
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* Set if the XML parser should validate the document and thus enforce a schema. Defaults to true.
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*/
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public void setValidating(boolean validating) {
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this.validating = validating;
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}
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/**
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* Returns the SAX entity resolver used by the XML parser.
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*/
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public EntityResolver getEntityResolver() {
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return entityResolver;
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}
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/**
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* Set a SAX entity resolver to be used for parsing. Can be overridden for custom entity resolution, for example
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* relative to some specific base path.
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*/
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public void setEntityResolver(EntityResolver entityResolver) {
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this.entityResolver = entityResolver;
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}
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public Document loadDocument(Resource resource) throws IOException, ParserConfigurationException, SAXException {
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InputStream is = null;
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try {
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is = resource.getInputStream();
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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factory.setValidating(isValidating());
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factory.setNamespaceAware(true);
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try {
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factory.setAttribute(SCHEMA_LANGUAGE_ATTRIBUTE, XSD_SCHEMA_LANGUAGE);
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} catch (IllegalArgumentException ex) {
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throw new IllegalStateException("Unable to validate using XSD: Your JAXP provider [" + factory
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+ "] does not support XML Schema. "
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+ "Are you running on Java 1.4 or below with Apache Crimson? "
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+ "If so you must upgrade to Apache Xerces (or Java 5 or >) for full XSD support.");
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}
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DocumentBuilder docBuilder = factory.newDocumentBuilder();
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docBuilder.setErrorHandler(new SimpleSaxErrorHandler(logger));
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docBuilder.setEntityResolver(getEntityResolver());
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return docBuilder.parse(is);
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} finally {
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if (is != null) {
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is.close();
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}
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}
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}
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/*
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* Copyright 2004-2008 the original author or authors.
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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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* https://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.springframework.webflow.engine.model.builder.xml;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.core.io.Resource;
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import org.springframework.util.xml.SimpleSaxErrorHandler;
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import org.w3c.dom.Document;
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import org.xml.sax.EntityResolver;
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import org.xml.sax.SAXException;
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/**
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* The default document loader strategy for XSD-based XML documents with validation enabled by default.
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* <p>
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* Note: full XSD support requires JDK 5.0 or a capable parser such as Xerces 2.0. JDK 1.4 or less do not fully support XSD
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* out of the box. To use this implementation on JDK 1.4 make sure Xerces is available in your classpath or disable XSD
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* validation by {@link #setValidating(boolean) setting the validating property to false}.
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*
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* @author Keith Donald
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*/
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public class DefaultDocumentLoader implements DocumentLoader {
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private static final Log logger = LogFactory.getLog(DefaultDocumentLoader.class);
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/**
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* JAXP attribute used to configure the schema language for validation.
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*/
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private static final String SCHEMA_LANGUAGE_ATTRIBUTE = "https://java.sun.com/xml/jaxp/properties/schemaLanguage";
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/**
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* JAXP attribute value indicating the XSD schema language.
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*/
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private static final String XSD_SCHEMA_LANGUAGE = "http://www.w3.org/2001/XMLSchema";
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/**
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* Flag indicating if the XML document parser will perform schema validation.
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*/
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private boolean validating = true;
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/**
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* The spring-webflow schema resolution strategy.
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*/
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private EntityResolver entityResolver = new WebFlowEntityResolver();
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/**
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* Returns whether or not the XML parser will validate the document.
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*/
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public boolean isValidating() {
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return validating;
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}
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/**
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* Set if the XML parser should validate the document and thus enforce a schema. Defaults to true.
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*/
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public void setValidating(boolean validating) {
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this.validating = validating;
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}
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/**
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* Returns the SAX entity resolver used by the XML parser.
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*/
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public EntityResolver getEntityResolver() {
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return entityResolver;
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}
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/**
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* Set a SAX entity resolver to be used for parsing. Can be overridden for custom entity resolution, for example
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* relative to some specific base path.
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*/
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public void setEntityResolver(EntityResolver entityResolver) {
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this.entityResolver = entityResolver;
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}
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public Document loadDocument(Resource resource) throws IOException, ParserConfigurationException, SAXException {
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InputStream is = null;
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try {
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is = resource.getInputStream();
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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factory.setValidating(isValidating());
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factory.setNamespaceAware(true);
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try {
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factory.setAttribute(SCHEMA_LANGUAGE_ATTRIBUTE, XSD_SCHEMA_LANGUAGE);
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} catch (IllegalArgumentException ex) {
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throw new IllegalStateException("Unable to validate using XSD: Your JAXP provider [" + factory
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+ "] does not support XML Schema. "
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+ "Are you running on Java 1.4 or below with Apache Crimson? "
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+ "If so you must upgrade to Apache Xerces (or Java 5 or >) for full XSD support.");
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}
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DocumentBuilder docBuilder = factory.newDocumentBuilder();
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docBuilder.setErrorHandler(new SimpleSaxErrorHandler(logger));
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docBuilder.setEntityResolver(getEntityResolver());
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return docBuilder.parse(is);
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} finally {
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if (is != null) {
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is.close();
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}
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}
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}
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}
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