content: /*******************************************************************************
   * Copyright (c) 2000, 2008 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.jsdt.internal.corext.fix;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  
  import org.eclipse.core.runtime.CoreException;
  import org.eclipse.ltk.core.refactoring.TextChange;
  import org.eclipse.text.edits.TextEditGroup;
  import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
  import org.eclipse.wst.jsdt.core.dom.JavaScriptUnit;
  import org.eclipse.wst.jsdt.internal.corext.refactoring.changes.CompilationUnitChange;
  import org.eclipse.wst.jsdt.internal.corext.refactoring.structure.CompilationUnitRewrite;
  
  public class LinkedFix extends AbstractFix {
  	
  	public static abstract class AbstractLinkedFixRewriteOperation extends AbstractFixRewriteOperation implements ILinkedFixRewriteOperation {
  
  		/* (non-Javadoc)
  		 * @see org.eclipse.wst.jsdt.internal.corext.fix.AbstractFix.IFixRewriteOperation#rewriteAST(org.eclipse.wst.jsdt.internal.corext.refactoring.structure.CompilationUnitRewrite, java.util.List)
  		 */
  		public void rewriteAST(CompilationUnitRewrite cuRewrite, List textEditGroups) throws CoreException {
  			rewriteAST(cuRewrite, textEditGroups, new LinkedProposalModel());
  		}
  
  	}
  	
  	private final IFixRewriteOperation[] fFixRewrites;
  	private final JavaScriptUnit fCompilationUnit;
  	private final LinkedProposalModel fLinkedProposalModel;
  
  	protected LinkedFix(String name, JavaScriptUnit compilationUnit, IFixRewriteOperation[] fixRewrites) {
  		super(name, compilationUnit, fixRewrites);
  		fCompilationUnit= compilationUnit;
  		fFixRewrites= fixRewrites;
  		fLinkedProposalModel= new LinkedProposalModel();
  	}
  		
  	public LinkedProposalModel getLinkedPositions() {
  		return fLinkedProposalModel;
  	}
  
  	/* (non-Javadoc)
  	 * @see org.eclipse.wst.jsdt.internal.corext.fix.IFix#createChange()
  	 */
  	public TextChange createChange() throws CoreException {
  		if (fFixRewrites == null || fFixRewrites.length == 0)
  			return null;
  
  		CompilationUnitRewrite cuRewrite= new CompilationUnitRewrite((IJavaScriptUnit)fCompilationUnit.getJavaElement(), fCompilationUnit);
  	
  		List/*<TextEditGroup>*/ groups= new ArrayList();
  
  		fLinkedProposalModel.clear();
  		
  		for (int i= 0; i < fFixRewrites.length; i++) {
  			IFixRewriteOperation operation= fFixRewrites[i];
  			if (operation instanceof ILinkedFixRewriteOperation) {
  				ILinkedFixRewriteOperation linkedOperation= (ILinkedFixRewriteOperation)operation;
  				linkedOperation.rewriteAST(cuRewrite, groups, fLinkedProposalModel);
  			} else {
  				operation.rewriteAST(cuRewrite, groups);
  			}
  		}
  		
  		CompilationUnitChange result= cuRewrite.createChange(getDescription(), true, null);
  		
  		for (Iterator iter= groups.iterator(); iter.hasNext();) {
  			TextEditGroup group= (TextEditGroup)iter.next();
  			result.addTextEditGroup(group);
  		}
  		return result;
  	}
  }
  