net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/corext/refactoring/util/ResourceUtil.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.corext.refactoring.util;
  12
  13 import java.util.ArrayList;
  14 import java.util.List;
  15
  16 import net.sourceforge.phpdt.core.ICompilationUnit;
  17 import net.sourceforge.phpdt.core.IJavaElement;
  18 import net.sourceforge.phpdt.core.IMember;
  19 import net.sourceforge.phpdt.core.IOpenable;
  20 //incastrix
  21 //import net.sourceforge.phpdt.internal.corext.Assert;
  22 import org.eclipse.core.runtime.Assert;
  23
  24 import org.eclipse.core.resources.IFile;
  25 import org.eclipse.core.resources.IResource;
  26
  27 public class ResourceUtil {
  28
  29         private ResourceUtil() {
  30         }
  31
  32         public static IFile[] getFiles(ICompilationUnit[] cus) {
  33                 List files = new ArrayList(cus.length);
  34                 for (int i = 0; i < cus.length; i++) {
  35                         IResource resource = ResourceUtil.getResource(cus[i]);
  36                         if (resource != null && resource.getType() == IResource.FILE)
  37                                 files.add(resource);
  38                 }
  39                 return (IFile[]) files.toArray(new IFile[files.size()]);
  40         }
  41
  42         public static IFile getFile(ICompilationUnit cu) {
  43                 IResource resource = ResourceUtil.getResource(cu);
  44                 if (resource != null && resource.getType() == IResource.FILE)
  45                         return (IFile) resource;
  46                 else
  47                         return null;
  48         }
  49
  50         // ----- other ------------------------------
  51
  52         /**
  53          * Finds an <code>IResource</code> for a given
  54          * <code>ICompilationUnit</code>. If the parameter is a working copy then
  55          * the <code>IResource</code> for the original element is returned.
  56          */
  57         public static IResource getResource(ICompilationUnit cu) {
  58                 return cu.getResource();
  59         }
  60
  61         /**
  62          * Returns the <code>IResource</code> that the given <code>IMember</code>
  63          * is defined in.
  64          *
  65          * @see #getResource
  66          */
  67         public static IResource getResource(IMember member) {
  68                 Assert.isTrue(!member.isBinary());
  69                 return getResource(member.getCompilationUnit());
  70         }
  71
  72         public static IResource getResource(Object o) {
  73                 if (o instanceof IResource)
  74                         return (IResource) o;
  75                 if (o instanceof IJavaElement)
  76                         return getResource((IJavaElement) o);
  77                 return null;
  78         }
  79
  80         private static IResource getResource(IJavaElement element) {
  81                 if (element.getElementType() == IJavaElement.COMPILATION_UNIT)
  82                         return getResource((ICompilationUnit) element);
  83                 else if (element instanceof IOpenable)
  84                         return element.getResource();
  85                 else
  86                         return null;
  87         }
  88 }