Package org.eclipse.wst.html.core.internal.modelquery

Source Code of org.eclipse.wst.html.core.internal.modelquery.CMDocumentForBuddySystem$Elements

/*******************************************************************************
* Copyright (c) 2004, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
*     IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.html.core.internal.modelquery;

import java.util.Iterator;

import org.eclipse.wst.html.core.internal.contentmodel.HTMLCMDocumentFactory;
import org.eclipse.wst.html.core.internal.contentmodel.ssi.SSICMDocumentFactory;
import org.eclipse.wst.xml.core.internal.contentmodel.CMDocument;
import org.eclipse.wst.xml.core.internal.contentmodel.CMElementDeclaration;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNamedNodeMap;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNamespace;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNode;
import org.eclipse.wst.xml.core.internal.provisional.contentmodel.CMDocType;

/**
*/
class CMDocumentForBuddySystem extends CMNodeBuddySystem implements CMDocument {


  private static CMDocument getHTMLCMDocument() {
    return HTMLCMDocumentFactory.getCMDocument(CMDocType.HTML_DOC_TYPE);
  }

  class Elements extends CMNamedNodeMapForBuddySystem {
    public Elements(CMNamedNodeMap elements, boolean isXHTML) {
      super(isXHTML);
      makeBuddySystem(elements);
      addSSIDecls();
    }

    protected String getKeyName(CMNode original) {
      CMElementDeclaration edecl = getDecl(original);
      if (edecl == null)
        return null;
      return edecl.getElementName();
    }

    protected CMNode createBuddySystem(CMNode original) {
      CMElementDeclaration edecl = getDecl(original);
      return new CMElementDeclarationBuddySystem(edecl, isXHTML());
    }

    private CMElementDeclaration getDecl(CMNode cmnode) {
      if (cmnode == null)
        return null;
      if (cmnode.getNodeType() != CMNode.ELEMENT_DECLARATION)
        return null;
      return (CMElementDeclaration) cmnode;
    }

    private void addSSIDecls() {
      CMDocument ssi = SSICMDocumentFactory.getCMDocument();
      if (ssi == null)
        return;
      CMNamedNodeMap elements = ssi.getElements();
      Iterator i = elements.iterator();
      while (i.hasNext()) {
        CMElementDeclaration decl = (CMElementDeclaration) i.next();
        if (decl == null)
          continue;
        put(decl.getElementName(), decl);
      }
    }
  }

  private Elements elements = null;

  public CMDocumentForBuddySystem(CMDocument self, boolean isXHTML) {
    super(self, getHTMLCMDocument(), isXHTML);
  }

  /*
   * @see CMDocument#getElements()
   */
  public CMNamedNodeMap getElements() {
    if (elements != null)
      return elements;
    CMDocument cmdoc = getSelf();
    if (cmdoc == null)
      return null;
    elements = new Elements(cmdoc.getElements(), isXHTML);
    return elements;
  }

  /*
   * @see CMDocument#getEntities()
   */
  public CMNamedNodeMap getEntities() {
    CMDocument cmdoc = getSelf();
    if (cmdoc == null)
      return null;
    return cmdoc.getEntities();
  }

  /*
   * @see CMDocument#getNamespace()
   */
  public CMNamespace getNamespace() {
    CMDocument cmdoc = getSelf();
    if (cmdoc == null)
      return null;
    return cmdoc.getNamespace();
  }

  private CMDocument getSelf() {
    if (self.getNodeType() != CMNode.DOCUMENT)
      return null;
    return (CMDocument) self;
  }
}
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