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.ui.fix;
  
  import java.util.Map;
  
  import org.eclipse.core.runtime.Assert;
  import org.eclipse.core.runtime.CoreException;
  import org.eclipse.core.runtime.IProgressMonitor;
  import org.eclipse.ltk.core.refactoring.RefactoringStatus;
  import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
  import org.eclipse.wst.jsdt.core.IJavaScriptProject;
  import org.eclipse.wst.jsdt.core.compiler.IProblem;
  import org.eclipse.wst.jsdt.core.dom.JavaScriptUnit;
  import org.eclipse.wst.jsdt.internal.corext.fix.CleanUpConstants;
  import org.eclipse.wst.jsdt.internal.corext.fix.IFix;
  
  public abstract class AbstractCleanUp implements ICleanUp {
  	
  	private Map fOptions;
  	private final boolean fCanReinitialize;
  	
  	public AbstractCleanUp() {
  		this(null);
  	}
  	
  	public AbstractCleanUp(Map options) {
  		fOptions= options;
  		fCanReinitialize= options == null;
  	}
  	
  	protected int getNumberOfProblems(IProblem[] problems, int problemId) {
  		int result= 0;
  		for (int i= 0; i < problems.length; i++) {
  			if (problems[i].getID() == problemId)
  				result++;
  		}
  		return result;
  	}
  	
  	/**
  	 * {@inheritDoc}
  	 */
  	public RefactoringStatus checkPreConditions(IJavaScriptProject project, IJavaScriptUnit[] compilationUnits, IProgressMonitor monitor) throws CoreException {
  		if (monitor != null)
  			monitor.done();
  		return new RefactoringStatus();
  	}
  	
  	/**
  	 * {@inheritDoc}
  	 */
  	public RefactoringStatus checkPostConditions(IProgressMonitor monitor) throws CoreException {
  		if (monitor != null)
  			monitor.done();
  		//Default do nothing
  		return new RefactoringStatus();
  	}
  	
  	/**
  	 * {@inheritDoc}
  	 */
  	public void initialize(Map settings) throws CoreException {
  		if (fCanReinitialize)
  			fOptions= settings;
  	}
  	
  	protected boolean isEnabled(String key) {
  		Assert.isNotNull(key);
  		
  		Object value= fOptions.get(key);
  		return CleanUpConstants.TRUE == value || CleanUpConstants.TRUE.equals(value);
  	}
  	
  	/**
  	 * {@inheritDoc}
  	 */
  	public boolean needsFreshAST(JavaScriptUnit compilationUnit) {
  		return false;
  	}
  	
  	/**
  	 * {@inheritDoc}
  	 */
  	public IFix createFix(IJavaScriptUnit unit) throws CoreException {
  		return null;
  	}
  }
  