| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xerces" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 2001, International |
| * Business Machines, Inc., http://www.apache.org. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package org.apache.xerces.impl.xs.traversers; |
| |
| import org.apache.xerces.impl.XMLErrorReporter; |
| import org.apache.xerces.impl.xs.SchemaGrammar; |
| import org.apache.xerces.impl.xs.SchemaSymbols; |
| import org.apache.xerces.impl.xs.SchemaNamespaceSupport; |
| |
| import org.apache.xerces.util.DOMUtil; |
| import org.w3c.dom.Element; |
| import org.apache.xerces.impl.xs.identity.*; |
| import org.apache.xerces.impl.xpath.*; |
| |
| /** |
| * This class contains code that all three IdentityConstraint |
| * traversers (the XSDUniqueTraverser, XSDKeyTraverser and |
| * XSDKeyrefTraverser) rely upon. |
| * |
| * @version $Id$ |
| */ |
| class XSDAbstractIDConstraintTraverser extends XSDAbstractTraverser { |
| |
| public XSDAbstractIDConstraintTraverser (XSDHandler handler, |
| XSAttributeChecker gAttrCheck) { |
| super(handler, gAttrCheck); |
| } |
| |
| void traverseIdentityConstraint(IdentityConstraint ic, |
| Element icElem, XSDocumentInfo schemaDoc, Object [] icElemAttrs) { |
| |
| // General Attribute Checking will have been done on icElem by caller |
| |
| // check for <annotation> and get selector |
| Element sElem = DOMUtil.getFirstChildElement(icElem); |
| if(sElem == null) { |
| // REVISIT: localize |
| reportGenericSchemaError("The content of an identity constraint must match (annotation?, selector, field+)"); |
| return; |
| } |
| |
| // General Attribute Checking on sElem |
| // first child could be an annotation |
| if (DOMUtil.getLocalName(sElem).equals(SchemaSymbols.ELT_ANNOTATION)) { |
| traverseAnnotationDecl(sElem, icElemAttrs, false, schemaDoc); |
| sElem = DOMUtil.getNextSiblingElement(sElem); |
| } |
| // if no more children report an error |
| if(sElem == null) { |
| // REVISIT: localize |
| reportGenericSchemaError("The content of an identity constraint must match (annotation?, selector, field+)"); |
| return; |
| } |
| Object [] attrValues = fAttrChecker.checkAttributes(sElem, false, schemaDoc); |
| |
| // if more than one annotation report an error |
| if(!DOMUtil.getLocalName(sElem).equals(SchemaSymbols.ELT_SELECTOR)) { |
| // REVISIT: localize |
| reportGenericSchemaError("The content of an identity constraint must match (annotation?, selector, field+)"); |
| } |
| // and make sure <selector>'s content is fine: |
| Element selChild = DOMUtil.getFirstChildElement(sElem); |
| |
| if (selChild !=null) { |
| // traverse annotation if any |
| if (DOMUtil.getLocalName(selChild).equals(SchemaSymbols.ELT_ANNOTATION)) { |
| traverseAnnotationDecl(selChild, attrValues, false, schemaDoc); |
| selChild = DOMUtil.getNextSiblingElement(selChild); |
| } |
| else { |
| reportGenericSchemaError("The content of an identity constraint must match (annotation?, selector, field+)"); |
| } |
| if (selChild != null) { |
| reportSchemaError("src-identity-constraint.1", new Object [] {icElemAttrs[XSAttributeChecker.ATTIDX_NAME]}); |
| } |
| } |
| |
| String sText = ((String)attrValues[XSAttributeChecker.ATTIDX_XPATH]); |
| if(sText == null) { |
| reportSchemaError("s4s-att-must-appear", new Object [] {SchemaSymbols.ELT_SELECTOR, SchemaSymbols.ATT_XPATH}); |
| return; |
| } |
| sText = sText.trim(); |
| |
| Selector.XPath sXpath = null; |
| try { |
| sXpath = new Selector.XPath(sText, fSymbolTable, |
| schemaDoc.fNamespaceSupport); |
| Selector selector = new Selector(sXpath, ic); |
| ic.setSelector(selector); |
| } |
| catch (XPathException e) { |
| // REVISIT: Add error message. |
| reportGenericSchemaError(e.getMessage()); |
| // put back attr values... |
| fAttrChecker.returnAttrArray(attrValues, schemaDoc); |
| return; |
| } |
| |
| // put back attr values... |
| fAttrChecker.returnAttrArray(attrValues, schemaDoc); |
| |
| // get fields |
| Element fElem = DOMUtil.getNextSiblingElement(sElem); |
| if(fElem == null) { |
| // REVISIT: localize |
| reportGenericSchemaError("The content of an identity constraint must match (annotation?, selector, field+)"); |
| } |
| while (fElem != null) { |
| // General Attribute Checking |
| attrValues = fAttrChecker.checkAttributes(fElem, false, schemaDoc); |
| |
| if(!DOMUtil.getLocalName(fElem).equals(SchemaSymbols.ELT_FIELD)) |
| // REVISIT: localize |
| reportGenericSchemaError("The content of an identity constraint must match (annotation?, selector, field+)"); |
| |
| // and make sure <field>'s content is fine: |
| Element fieldChild = DOMUtil.getFirstChildElement(fElem); |
| if (fieldChild != null) { |
| // traverse annotation |
| if (DOMUtil.getLocalName(fieldChild).equals(SchemaSymbols.ELT_ANNOTATION)) { |
| traverseAnnotationDecl(fieldChild, attrValues, false, schemaDoc); |
| fieldChild = DOMUtil.getNextSiblingElement(fieldChild); |
| } |
| } |
| if (fieldChild != null) { |
| reportSchemaError("src-identity-constraint.1", new Object [] {icElemAttrs[XSAttributeChecker.ATTIDX_NAME]}); |
| } |
| String fText = ((String)attrValues[XSAttributeChecker.ATTIDX_XPATH]); |
| if(fText == null) { |
| reportSchemaError("s4s-att-must-appear", new Object [] {SchemaSymbols.ELT_FIELD, SchemaSymbols.ATT_XPATH}); |
| return; |
| } |
| fText = fText.trim(); |
| try { |
| Field.XPath fXpath = new Field.XPath(fText, fSymbolTable, |
| schemaDoc.fNamespaceSupport); |
| Field field = new Field(fXpath, ic); |
| ic.addField(field); |
| } |
| catch (XPathException e) { |
| // REVISIT: Add error message. |
| reportGenericSchemaError(e.getMessage()); |
| // put back attr values... |
| fAttrChecker.returnAttrArray(attrValues, schemaDoc); |
| return; |
| } |
| fElem = DOMUtil.getNextSiblingElement(fElem); |
| // put back attr values... |
| fAttrChecker.returnAttrArray(attrValues, schemaDoc); |
| } |
| |
| } // traverseIdentityConstraint(IdentityConstraint,Element, XSDocumentInfo) |
| } // XSDAbstractIDConstraintTraverser |
| |
