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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.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Stack;
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import org.jbind.util.collection.ConcatIterator;
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import org.jbind.util.collection.UnsynchronizedStack;
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import org.jbind.xml.core.base.IKeyStore;
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import org.jbind.xml.core.bridge.IElementImpl;
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import org.jbind.xml.core.cmp.IUseStateIterator;
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import org.jbind.xml.core.constraint.ConstraintType;
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import org.jbind.xml.core.constraint.IConstraints;
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import org.jbind.xml.core.constraint.ITypeInstanceConstraint;
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import org.jbind.xml.core.constraint.ITypeKeyRefConstraint;
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import org.jbind.xml.core.content.IElemDesc;
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import org.jbind.xml.core.data.IAnyTypeData;
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import org.jbind.xml.core.data.IDataContext;
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import org.jbind.xml.instance.data.DataVisitor;
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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.constraint.GlobalCheckContext;
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public class ValidationVisitor extends DataVisitor implements IDataValidator {
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private IDataContext myDataContext = null;
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private IConstraintViolations myViolations = null;
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private UnsynchronizedStack myKeyStores = new UnsynchronizedStack();
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private boolean myValidateContentModel;
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private UnsynchronizedStack myUseStateIterators = null;
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/**
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* Maps key/unique constraint names to lists of maps.
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*/
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private Map myLocalTypeInstancesMaps = null;
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public ValidationVisitor(boolean aValidateContentModel) {
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myValidateContentModel = aValidateContentModel;
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}
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public void visitAnyTypeDataStarts(IAnyTypeData aData) {
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if (!aData.isNil_()) {
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GlobalCheckContext context = new GlobalCheckContext(myDataContext, aData, myViolations);
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aData.getType_().checkConstraints(context);
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myKeyStores.push(new KeyStore());
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// Build indices for local type key/unique constraints.
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IConstraints constraints = aData.getType_().getConstraints();
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for (Iterator i = new ConcatIterator(constraints.iterConstraints(ConstraintType.TYPE_KEY), constraints.iterConstraints(ConstraintType.TYPE_UNIQUE));
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i.hasNext(); ) {
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ITypeInstanceConstraint c = (ITypeInstanceConstraint)i.next();
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if (ITypeInstanceConstraint.GLOBAL.equals(c.getScope())) {
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continue;
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}
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HashMap map = new HashMap();
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c.collectLocalTypeInstances(aData, map, myViolations);
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Stack s = (Stack)myLocalTypeInstancesMaps.get(c.getGlobalRef());
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if (null == s) {
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s = new Stack();
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myLocalTypeInstancesMaps.put(c.getGlobalRef(), s);
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}
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s.push(map);
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}
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// Check local type keyref constraints.
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for (Iterator i = constraints.iterConstraints(ConstraintType.TYPE_KEY_REF);
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i.hasNext(); ) {
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ITypeKeyRefConstraint c = (ITypeKeyRefConstraint)i.next();
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ITypeInstanceConstraint referredConstraint = c.getReferredConstraint();
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if (ITypeInstanceConstraint.GLOBAL.equals(referredConstraint.getScope())) {
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continue;
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}
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Stack s = (Stack)myLocalTypeInstancesMaps.get(referredConstraint.getGlobalRef());
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if ((null == s) || (s.size() == 0)) {
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myViolations.add(XmlMessages.referedTypeInstanceConstraintNotInScope(referredConstraint.getGlobalRef(), aData.getImpl_()));
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continue;
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}
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c.resolveLocalTypeInstances((Map)s.peek(), aData, myViolations);
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}
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if (myValidateContentModel) {
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if (myUseStateIterators == null) {
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myUseStateIterators = new UnsynchronizedStack();
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} else {
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IElementImpl impl = (IElementImpl)aData.getImpl_();
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IUseStateIterator usi = (IUseStateIterator)myUseStateIterators.peek();
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String namespace = impl.getNamespace();
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String name = impl.getPartName();
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try {
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usi.getNextElemDesc(namespace, name, aData.getType_(), impl);
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} catch (XmlException e) {
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myViolations.add(e.getXmlMessage());
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}
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}
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myUseStateIterators.push(aData.getType_().getContentModel().createUseIterator());
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}
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}
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}
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public void visitAnyTypeDataEnds(IAnyTypeData aData) {
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if (!aData.isNil_()) {
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// Remove indices for local type key/unique constraints.
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IConstraints constraints = aData.getType_().getConstraints();
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for (Iterator i = new ConcatIterator(constraints.iterConstraints(ConstraintType.TYPE_KEY), constraints.iterConstraints(ConstraintType.TYPE_UNIQUE));
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i.hasNext(); ) {
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ITypeInstanceConstraint c = (ITypeInstanceConstraint)i.next();
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if (ITypeInstanceConstraint.GLOBAL.equals(c.getScope())) {
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continue;
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}
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Stack s = (Stack)myLocalTypeInstancesMaps.get(c.getGlobalRef());
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s.pop();
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}
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IKeyStore keyStore = (IKeyStore)myKeyStores.pop();
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((IElemDesc)aData.getDataDesc_()).checkIdentityConstraints(aData, keyStore, myViolations);
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IKeyStore parentKeyStore = (IKeyStore)myKeyStores.peek();
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parentKeyStore.merge(keyStore);
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if (myValidateContentModel) {
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IUseStateIterator usi = (IUseStateIterator)myUseStateIterators.pop();
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try {
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usi.isValidEnd(aData.getImpl_());
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} catch (XmlException e) {
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myViolations.add(e.getXmlMessage());
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}
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}
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}
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}
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public synchronized void validate(IAnyTypeData aData, IDataContext aDataContext, IConstraintViolations aViolations) {
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myDataContext = aDataContext;
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if (null == myDataContext) {
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myDataContext = new DataContext(false);
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}
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myViolations = aViolations;
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myKeyStores.push(new KeyStore());
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myLocalTypeInstancesMaps = new HashMap();
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((IAnyTypeData)aData).accept_(this);
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myLocalTypeInstancesMaps = null;
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myKeyStores.pop();
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myDataContext.resolveReferences(myViolations);
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myUseStateIterators = null;
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}
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}
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