content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * Copyright 2001-2004 The Apache Software Foundation.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package jaxp.sun.org.apache.xerces.internal.impl.xs.traversers;
  
  import jaxp.sun.org.apache.xerces.internal.impl.xpath.XPathException;
  import jaxp.sun.org.apache.xerces.internal.impl.xs.SchemaSymbols;
  import jaxp.sun.org.apache.xerces.internal.impl.xs.identity.Field;
  import jaxp.sun.org.apache.xerces.internal.impl.xs.identity.IdentityConstraint;
  import jaxp.sun.org.apache.xerces.internal.impl.xs.identity.Selector;
  import jaxp.sun.org.apache.xerces.internal.util.DOMUtil;
  import jaxp.sun.org.apache.xerces.internal.util.XMLChar;
  import org.w3c.dom.Element;
  
  /**
   * This class contains code that all three IdentityConstraint
   * traversers (the XSDUniqueTraverser, XSDKeyTraverser and
   * XSDKeyrefTraverser) rely upon.
   *
   * @xerces.internal
   *
   * @version $Id: XSDAbstractIDConstraintTraverser.java,v 1.7 2010-11-01 04:40:02 joehw Exp $
   */
  class XSDAbstractIDConstraintTraverser extends XSDAbstractTraverser {
  
      public XSDAbstractIDConstraintTraverser (XSDHandler handler,
              XSAttributeChecker gAttrCheck) {
          super(handler, gAttrCheck);
      }
  
      boolean 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) {
              reportSchemaError("s4s-elt-must-match.2",
                      new Object[]{"identity constraint", "(annotation?, selector, field+)"},
                      icElem);
              return false;
          }
  
          // General Attribute Checking on sElem
          // first child could be an annotation
          if (DOMUtil.getLocalName(sElem).equals(SchemaSymbols.ELT_ANNOTATION)) {
              ic.addAnnotation(traverseAnnotationDecl(sElem, icElemAttrs, false, schemaDoc));
              sElem = DOMUtil.getNextSiblingElement(sElem);
              // if no more children report an error
              if(sElem == null) {
                  reportSchemaError("s4s-elt-must-match.2", new Object[]{"identity constraint", "(annotation?, selector, field+)"}, icElem);
                  return false;
              }
          }
          else {
              String text = DOMUtil.getSyntheticAnnotation(icElem);
              if (text != null) {
                  ic.addAnnotation(traverseSyntheticAnnotation(icElem, text, icElemAttrs, false, schemaDoc));
              }
          }
  
          // must be <selector>
          if(!DOMUtil.getLocalName(sElem).equals(SchemaSymbols.ELT_SELECTOR)) {
              reportSchemaError("s4s-elt-must-match.1", new Object[]{"identity constraint", "(annotation?, selector, field+)", SchemaSymbols.ELT_SELECTOR}, sElem);
              return false;
          }
          Object [] attrValues = fAttrChecker.checkAttributes(sElem, false, schemaDoc);
  
          // 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)) {
                  ic.addAnnotation(traverseAnnotationDecl(selChild, attrValues, false, schemaDoc));
                  selChild = DOMUtil.getNextSiblingElement(selChild);
              }
              else {
                  reportSchemaError("s4s-elt-must-match.1", new Object[]{SchemaSymbols.ELT_SELECTOR, "(annotation?)", DOMUtil.getLocalName(selChild)}, selChild);
              }
              if (selChild != null) {
                  reportSchemaError("s4s-elt-must-match.1", new Object [] {SchemaSymbols.ELT_SELECTOR, "(annotation?)", DOMUtil.getLocalName(selChild)}, selChild);
              }
          }
          else {
              String text = DOMUtil.getSyntheticAnnotation(sElem);
              if (text != null) {
                  ic.addAnnotation(traverseSyntheticAnnotation(icElem, text, attrValues, false, schemaDoc));
              }
          }
  
          String sText = ((String)attrValues[XSAttributeChecker.ATTIDX_XPATH]);
          if(sText == null) {
              reportSchemaError("s4s-att-must-appear", new Object [] {SchemaSymbols.ELT_SELECTOR, SchemaSymbols.ATT_XPATH}, sElem);
              return false;
          }
          sText = XMLChar.trim(sText);
  
          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) {
              reportSchemaError(e.getKey(), new Object[]{sText}, sElem);
              // put back attr values...
              fAttrChecker.returnAttrArray(attrValues, schemaDoc);
              return false;
          }
  
          // put back attr values...
          fAttrChecker.returnAttrArray(attrValues, schemaDoc);
  
          // get fields
          Element fElem = DOMUtil.getNextSiblingElement(sElem);
          if(fElem == null) {
              reportSchemaError("s4s-elt-must-match.2", new Object[]{"identity constraint", "(annotation?, selector, field+)"}, sElem);
              return false;
          }
          while (fElem != null) {
              if(!DOMUtil.getLocalName(fElem).equals(SchemaSymbols.ELT_FIELD)) {
                  reportSchemaError("s4s-elt-must-match.1", new Object[]{"identity constraint", "(annotation?, selector, field+)", SchemaSymbols.ELT_FIELD}, fElem);
                  fElem = DOMUtil.getNextSiblingElement(fElem);
                  continue;
              }
  
              // General Attribute Checking
              attrValues = fAttrChecker.checkAttributes(fElem, false, schemaDoc);
  
              // 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)) {
                      ic.addAnnotation(traverseAnnotationDecl(fieldChild, attrValues, false, schemaDoc));
                      fieldChild = DOMUtil.getNextSiblingElement(fieldChild);
                  }
              }
              if (fieldChild != null) {
                  reportSchemaError("s4s-elt-must-match.1", new Object [] {SchemaSymbols.ELT_FIELD, "(annotation?)", DOMUtil.getLocalName(fieldChild)}, fieldChild);
              }
              else {
                  String text = DOMUtil.getSyntheticAnnotation(fElem);
                  if (text != null) {
                      ic.addAnnotation(traverseSyntheticAnnotation(icElem, text, attrValues, false, schemaDoc));
                  }
              }
              String fText = ((String)attrValues[XSAttributeChecker.ATTIDX_XPATH]);
              if (fText == null) {
                  reportSchemaError("s4s-att-must-appear", new Object [] {SchemaSymbols.ELT_FIELD, SchemaSymbols.ATT_XPATH}, fElem);
                  fAttrChecker.returnAttrArray(attrValues, schemaDoc);
                  return false;
              }
              fText = XMLChar.trim(fText);
              try {
                  Field.XPath fXpath = new Field.XPath(fText, fSymbolTable,
                          schemaDoc.fNamespaceSupport);
                  Field field = new Field(fXpath, ic);
                  ic.addField(field);
              }
              catch (XPathException e) {
                  reportSchemaError(e.getKey(), new Object[]{fText}, fElem);
                  // put back attr values...
                  fAttrChecker.returnAttrArray(attrValues, schemaDoc);
                  return false;
              }
              fElem = DOMUtil.getNextSiblingElement(fElem);
              // put back attr values...
              fAttrChecker.returnAttrArray(attrValues, schemaDoc);
          }
  
          return ic.getFieldCount() > 0;
      } // traverseIdentityConstraint(IdentityConstraint,Element, XSDocumentInfo)
  } // XSDAbstractIDConstraintTraverser
  