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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.builder;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.Enumeration;
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import java.util.Iterator;
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import java.util.StringTokenizer;
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import org.jbind.util.collection.UnsynchronizedStack;
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import org.jbind.xml.Config;
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import org.jbind.xml.base.ILocation;
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import org.jbind.xml.base.INamespaces;
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import org.jbind.xml.base.IQName;
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import org.jbind.xml.base.IRef;
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import org.jbind.xml.base.ISymbolspaces;
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import org.jbind.xml.base.QName;
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import org.jbind.xml.base.Ref;
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import org.jbind.xml.base.StringUtil;
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import org.jbind.xml.base.WhiteSpaceProcessing;
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import org.jbind.xml.core.bridge.IAttributeImpl;
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import org.jbind.xml.core.bridge.IDataImpl;
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import org.jbind.xml.core.bridge.IDefaultAttrCreator;
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import org.jbind.xml.core.bridge.IElementImpl;
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import org.jbind.xml.core.bridge.IImplContainer;
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import org.jbind.xml.core.cmp.ISchema;
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import org.jbind.xml.core.cmp.IUseStateIterator;
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import org.jbind.xml.core.content.IAttrDesc;
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import org.jbind.xml.core.content.IElemDesc;
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import org.jbind.xml.core.content.IElemRefOrDecl;
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import org.jbind.xml.core.data.IAnyTypeData;
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import org.jbind.xml.core.type.IAnyType;
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import org.jbind.xml.facade.JBindFacade;
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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.cmp.Schemas;
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import org.jbind.xml.schema.instantiation.ISchemaReader;
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public class DataBuilder implements IDataBuilder {
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private static class BuildInfo {
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public IElemDesc elemDesc;
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public IAnyType overloadingType;
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public IUseStateIterator useStateIterator;
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public IElemRefOrDecl substitutionHead;
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public BuildInfo(IElemDesc aDesc, IAnyType anOverloadingType, IElemRefOrDecl aSubstitutionHead, IUseStateIterator aUseStateIterator) {
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elemDesc = aDesc;
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overloadingType = anOverloadingType;
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substitutionHead = aSubstitutionHead;
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useStateIterator = aUseStateIterator;
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}
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}
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/**
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* Stores build infos.
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*/
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private UnsynchronizedStack myStack = null;
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private int mySkipped = 0;
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private int myNil = 0;
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private boolean myUseBuiltInClassesOnly;
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public DataBuilder(boolean aUseBuiltInClassesOnly) {
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myUseBuiltInClassesOnly = aUseBuiltInClassesOnly;
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}
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public void initialize() {
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myStack = new UnsynchronizedStack();
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mySkipped = 0;
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}
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private void push(BuildInfo anItem) {
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myStack.push(anItem);
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}
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private BuildInfo peek() {
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return (BuildInfo)myStack.peek();
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}
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private BuildInfo pop() {
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return (BuildInfo)myStack.pop();
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}
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private boolean stackEmpty() {
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return myStack.size() == 0;
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}
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public void startElement(IElementImpl anElement, IConstraintViolations aViolations) throws XmlException {
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if (myNil > 0) {
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aViolations.add(XmlMessages.nilledElementContainedData(anElement));
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myNil++;
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return;
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}
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if (mySkipped > 0) {
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mySkipped++;
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return;
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}
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//
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// Treat the xsi:schemaLocation and xsi:noNamespaceSchemaLocation attributes.
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//
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IAttributeImpl xsiSchemaLocation = anElement.getAttributeImpl(INamespaces.XML_SCHEMA_INSTANCE, "schemaLocation");
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if (null != xsiSchemaLocation) {
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for (Enumeration e = new StringTokenizer(xsiSchemaLocation.getTextContent());
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e.hasMoreElements(); ) {
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String namespace = (String)e.nextElement();
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if (!e.hasMoreElements()) {
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aViolations.add(XmlMessages.missingSchemaLocation(namespace, anElement));
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} else {
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String stringUrl = (String)e.nextElement();
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if (null != Schemas.getInstance().getSchema(namespace)) {
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continue;
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}
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readSchema(anElement, namespace, stringUrl, aViolations);
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}
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}
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}
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IAttributeImpl xsiNoNamespaceSchemaLocation = anElement.getAttributeImpl(INamespaces.XML_SCHEMA_INSTANCE, "noNamespaceSchemaLocation");
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if (null != xsiNoNamespaceSchemaLocation) {
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if (null == Schemas.getInstance().getSchema(INamespaces.NO)) {
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readSchema(anElement, INamespaces.NO, xsiNoNamespaceSchemaLocation.getTextContent(), aViolations);
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}
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}
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IAnyType overloadingType = null;
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IAttributeImpl xsiTypeImpl = anElement.getAttributeImpl(INamespaces.XML_SCHEMA_INSTANCE, "type");
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if (null != xsiTypeImpl) {
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String overloadingTypeName = xsiTypeImpl.getTextContent();
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IQName qName = QName.create(overloadingTypeName, anElement.getPrefixToNamespaceMapping());
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if (null == qName) {
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throw new XmlException(XmlMessages.invalidQName(overloadingTypeName, anElement));
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}
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IRef overloadingTypeRef = new Ref(qName.getNamespace(), ISymbolspaces.TYPE, qName.getLocalPart());
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overloadingType = (IAnyType)Schemas.getInstance().getComponent(overloadingTypeRef);
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if (null == overloadingType) {
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throw new XmlException(XmlMessages.unknownOverloadingType(overloadingTypeRef, anElement));
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}
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}
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IElemDesc elementDecl = null;
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IElemRefOrDecl substitutionHead = null;
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String elmNamespace = anElement.getNamespace();
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String elmName = anElement.getPartName();
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ISchema schema = Schemas.getInstance().getSchema(elmNamespace);
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if (null == schema) {
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String url = Config.instance.resolveUri(elmNamespace);
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if (null != url) {
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readSchema(anElement, elmNamespace, url.toString(), aViolations);
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}
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}
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if (stackEmpty()) {
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IRef ref = new Ref(elmNamespace, ISymbolspaces.ELEMENT, elmName);
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elementDecl = (IElemDesc)Schemas.getInstance().getComponent(ref);
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if (null == elementDecl) {
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throw new XmlException(XmlMessages.unknownRootElement(ref, anElement));
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}
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} else {
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BuildInfo parentInfo = peek();
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elementDecl = parentInfo.useStateIterator.getNextElemDesc(elmNamespace, elmName, overloadingType, anElement);
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substitutionHead = parentInfo.useStateIterator.getSubstitutionHead();
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}
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if (null == elementDecl) {
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mySkipped = 1;
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return;
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}
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184
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if (elementDecl.isAbstract()) {
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IRef ref = new Ref(anElement.getNamespace(), ISymbolspaces.ELEMENT, anElement.getPartName());
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throw new XmlException(XmlMessages.triedToInstantiateAbstractElement(ref, anElement));
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}
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anElement.setDefaultTextContent(elementDecl.getDefaultTextContent());
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191
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IAnyType declaredType = elementDecl.getType();
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IAnyType elementType = (null != overloadingType) ? overloadingType : declaredType;
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// Create data objects for the attributes
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for (Iterator i = anElement.iterAttributeImpls(); i.hasNext(); ) {
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IAttributeImpl ai = (IAttributeImpl)i.next();
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197
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1700
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String namespace = ai.getNamespace();
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if (INamespaces.XML_SCHEMA_INSTANCE.equals(ai.getNamespace())) {
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continue;
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}
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201
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202
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1511
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if (null == Schemas.getInstance().getSchema(namespace)) {
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1445
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String url = Config.instance.resolveUri(namespace);
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204
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1445
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if (null != url) {
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205
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readSchema(ai, namespace, url.toString(), aViolations);
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206
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}
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207
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}
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208
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209
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210
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1511
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String name = ai.getPartName();
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211
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1511
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try {
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212
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1511
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IAttrDesc desc = elementType.getAttrDesc(namespace, name, anElement);
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// skippable attributes wildcards are not returned.
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1502
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if (null != desc) {
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215
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1492
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IAnyTypeData data = desc.createData(ai, null);
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216
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1472
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ai.setData(data);
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}
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218
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} catch (XmlException e) {
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219
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29
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aViolations.add(e.getXmlMessage());
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220
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}
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221
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}
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222
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223
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2420
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if (elementType.isComplex()) {
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1987
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anElement.setDefaultAttrCreator((IDefaultAttrCreator)elementType);
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225
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}
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226
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227
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2420
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boolean isNil = false;
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228
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2420
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IAttributeImpl xsiNilImpl = anElement.getAttributeImpl(INamespaces.XML_SCHEMA_INSTANCE, "nil");
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229
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2420
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if (null != xsiNilImpl) {
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230
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4
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if (!elementDecl.isNillable()) {
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231
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0
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aViolations.add(XmlMessages.nilAttributeNotAllowed(anElement));
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232
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}
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233
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4
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String nilString = xsiNilImpl.getTextContent();
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234
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4
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if ("false".equals(nilString)) {
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235
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// nothing
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236
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0
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isNil = false;// JIKES because of a bug in jikes there must be a statement here
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237
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4
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} else if ("true".equals(nilString)) {
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238
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4
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isNil = true;
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239
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4
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if (null != elementDecl.getFixed()) {
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240
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0
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aViolations.add(XmlMessages.nilledElementMustNotHaveFixedValue(anElement));
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241
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}
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242
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} else {
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243
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0
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aViolations.add(XmlMessages.invalidValueForNilAttribute(nilString, anElement));
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244
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}
|
|
245
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}
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246
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|
247
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2420
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if (isNil) {
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248
|
4
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myNil++;
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|
249
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}
|
|
250
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251
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2420
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IUseStateIterator useIterator = elementType.getContentModel().createUseIterator();
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252
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2420
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BuildInfo buildInfo = new BuildInfo(elementDecl, overloadingType, substitutionHead, useIterator);
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253
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2420
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push(buildInfo);
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254
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255
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}
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|
256
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|
257
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/**
|
|
258
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* Creates a data object for the element. The data object can only be created after
|
|
259
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|
* the element ended because in case of an element that has a union type the actual type of
|
|
260
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* the data object to be instantiated depends on the textual content of the element.
|
|
261
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|
*/
|
|
262
|
2704
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public void endElement(IElementImpl anElement, ILocation aLocation, IConstraintViolations aViolations) throws XmlException {
|
|
263
|
2704
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if (myNil > 1) {
|
|
264
|
1
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myNil--;
|
|
265
|
1
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return;
|
|
266
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|
}
|
|
267
|
2703
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if (mySkipped > 0) {
|
|
268
|
283
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mySkipped--;
|
|
269
|
283
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return;
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|
270
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|
}
|
|
271
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2420
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BuildInfo buildInfo = pop();
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|
272
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2420
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IAnyTypeData data = null;
|
|
273
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2420
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if (myNil == 0) {
|
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274
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2416
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buildInfo.useStateIterator.isValidEnd(aLocation);
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|
275
|
2394
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data = (IAnyTypeData)buildInfo.elemDesc.createData(anElement, buildInfo.overloadingType);
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|
276
|
2338
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data.setSubstitutionHead_(buildInfo.substitutionHead);
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277
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} else {
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278
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4
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myNil--;
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279
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4
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if (anElement.iterChildren().hasNext()) {
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280
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3
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IAnyType t = (null != buildInfo.overloadingType) ? buildInfo.overloadingType : buildInfo.elemDesc.getType();
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281
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3
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WhiteSpaceProcessing wsp = t.getConstraints().getWhiteSpaceProcessing();
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282
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3
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String tc = wsp.process(anElement.getTextContent());
|
|
283
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3
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if ((null != tc) && !"".equals(tc)) {
|
|
284
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1
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aViolations.add(XmlMessages.nilledElementContainedData(anElement));
|
|
285
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|
}
|
|
286
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|
}
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|
287
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4
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data = (IAnyTypeData)buildInfo.elemDesc.createUncheckedData(anElement, buildInfo.overloadingType);
|
|
288
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|
}
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|
289
|
2342
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anElement.setData(data);
|
|
290
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|
}
|
|
291
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|
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|
292
|
3665
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public void signalText(IImplContainer aContainer, String aText, ILocation aLocation, IConstraintViolations aViolations) {
|
|
293
|
3665
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boolean canTakeText = true;
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|
294
|
3665
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if ((mySkipped == 0) && !stackEmpty()) {
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|
295
|
3619
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BuildInfo bi = peek();
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296
|
3619
|
IAnyType type = (null != bi.overloadingType) ? bi.overloadingType : bi.elemDesc.getType();
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|
297
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3619
|
canTakeText = type.getContentModel().canContainText();
|
|
298
|
|
}
|
|
299
|
3665
|
if (canTakeText) {
|
|
300
|
679
|
aContainer.addText(aText, aLocation);
|
|
301
|
|
} else {
|
|
302
|
2986
|
if (!StringUtil.isWhiteSpace(aText)) {
|
|
303
|
5
|
aViolations.add(XmlMessages.unexpectedTextualContent(aText, aLocation));
|
|
304
|
|
}
|
|
305
|
|
}
|
|
306
|
|
}
|
|
307
|
|
|
|
308
|
1
|
private void readSchema(IDataImpl aDataImpl, String aNamespace, String aUrl, IConstraintViolations aViolations) {
|
|
309
|
1
|
URL baseUrl = aDataImpl.getLocation().getExpandedSystemId();
|
|
310
|
1
|
try {
|
|
311
|
1
|
URL url = null;
|
|
312
|
1
|
String resolvedNamespace = Config.instance.resolveUri(aNamespace);
|
|
313
|
1
|
if (null != resolvedNamespace) {
|
|
314
|
0
|
url = new URL(resolvedNamespace);
|
|
315
|
|
} else {
|
|
316
|
1
|
url = (null != baseUrl) ? new URL(baseUrl, aUrl) : new URL(aUrl);
|
|
317
|
|
}
|
|
318
|
1
|
ISchemaReader reader = JBindFacade.createSchemaReader();
|
|
319
|
1
|
ISchema schema = reader.readSchema(url, myUseBuiltInClassesOnly, null);
|
|
320
|
1
|
if (aNamespace.equals(schema.getNamespace())) {
|
|
321
|
1
|
Schemas.getInstance().setSchema(schema);
|
|
322
|
|
} else {
|
|
323
|
0
|
aViolations.add(XmlMessages.invalidNamespaceInReferencedSchema(aNamespace, schema.getNamespace(), aDataImpl));
|
|
324
|
|
}
|
|
325
|
|
} catch (XmlException e) {
|
|
326
|
0
|
aViolations.add(e.getXmlMessage());
|
|
327
|
|
} catch (MalformedURLException e) {
|
|
328
|
0
|
aViolations.add(XmlMessages.invalidSchemaUrl(aUrl, aDataImpl));
|
|
329
|
|
}
|
|
330
|
|
}
|
|
331
|
|
|
|
332
|
|
}
|
|
333
|
|
|
