1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Eclipse Public License, Version 1.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.eclipse.org/org/documents/epl-v10.php 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.ide.eclipse.adt.io; 18 19 import com.android.io.IAbstractFile; 20 import com.android.io.IAbstractFolder; 21 import com.android.io.IAbstractResource; 22 23 import org.eclipse.core.resources.IContainer; 24 import org.eclipse.core.resources.IFile; 25 import org.eclipse.core.resources.IFolder; 26 import org.eclipse.core.resources.IResource; 27 import org.eclipse.core.runtime.CoreException; 28 import org.eclipse.core.runtime.NullProgressMonitor; 29 import org.eclipse.core.runtime.Path; 30 31 import java.util.ArrayList; 32 33 /** 34 * An implementation of {@link IAbstractFolder} on top of either an {@link IFolder} or an 35 * {@link IContainer} object. 36 */ 37 public class IFolderWrapper implements IAbstractFolder { 38 39 private final IFolder mFolder; // could be null. 40 private final IContainer mContainer; // never null. 41 IFolderWrapper(IFolder folder)42 public IFolderWrapper(IFolder folder) { 43 mContainer = mFolder = folder; 44 } 45 IFolderWrapper(IContainer container)46 public IFolderWrapper(IContainer container) { 47 mFolder = container instanceof IFolder ? (IFolder)container : null; 48 mContainer = container; 49 } 50 51 @Override getName()52 public String getName() { 53 return mContainer.getName(); 54 } 55 56 @Override exists()57 public boolean exists() { 58 return mContainer.exists(); 59 } 60 61 @Override delete()62 public boolean delete() { 63 try { 64 mContainer.delete(true /*force*/, new NullProgressMonitor()); 65 return true; 66 } catch (CoreException e) { 67 return false; 68 } 69 } 70 71 72 @Override listMembers()73 public IAbstractResource[] listMembers() { 74 try { 75 IResource[] members = mContainer.members(); 76 final int count = members.length; 77 IAbstractResource[] afiles = new IAbstractResource[count]; 78 79 for (int i = 0 ; i < count ; i++) { 80 IResource f = members[i]; 81 if (f instanceof IFile) { 82 afiles[i] = new IFileWrapper((IFile) f); 83 } else { 84 afiles[i] = new IFolderWrapper((IContainer) f); 85 } 86 } 87 88 return afiles; 89 } catch (CoreException e) { 90 // return empty array below 91 } 92 93 return new IAbstractResource[0]; 94 } 95 96 @Override hasFile(String name)97 public boolean hasFile(String name) { 98 try { 99 IResource[] files = mContainer.members(); 100 for (IResource file : files) { 101 if (name.equals(file.getName())) { 102 return true; 103 } 104 } 105 } catch (CoreException e) { 106 // we'll return false below. 107 } 108 109 return false; 110 } 111 112 @Override getFile(String name)113 public IAbstractFile getFile(String name) { 114 if (mFolder != null) { 115 IFile file = mFolder.getFile(name); 116 return new IFileWrapper(file); 117 } 118 119 IFile file = mContainer.getFile(new Path(name)); 120 return new IFileWrapper(file); 121 } 122 123 /** 124 * Returns the {@link IFolder} object that the receiver could represent. 125 * Can be <code>null</code> 126 */ getIFolder()127 public IFolder getIFolder() { 128 return mFolder; 129 } 130 131 @Override equals(Object obj)132 public boolean equals(Object obj) { 133 if (obj instanceof IFolderWrapper) { 134 return mFolder.equals(((IFolderWrapper)obj).mFolder); 135 } 136 137 if (obj instanceof IFolder) { 138 return mFolder.equals(obj); 139 } 140 141 return super.equals(obj); 142 } 143 144 @Override hashCode()145 public int hashCode() { 146 return mContainer.hashCode(); 147 } 148 149 @Override getFolder(String name)150 public IAbstractFolder getFolder(String name) { 151 if (mFolder != null) { 152 IFolder folder = mFolder.getFolder(name); 153 return new IFolderWrapper(folder); 154 } 155 156 IFolder folder = mContainer.getFolder(new Path(name)); 157 return new IFolderWrapper(folder); 158 } 159 160 @Override getOsLocation()161 public String getOsLocation() { 162 return mContainer.getLocation().toOSString(); 163 } 164 165 @Override list(FilenameFilter filter)166 public String[] list(FilenameFilter filter) { 167 try { 168 IResource[] members = mContainer.members(); 169 if (members.length > 0) { 170 ArrayList<String> list = new ArrayList<String>(); 171 for (IResource res : members) { 172 if (filter.accept(this, res.getName())) { 173 list.add(res.getName()); 174 } 175 } 176 177 return list.toArray(new String[list.size()]); 178 } 179 } catch (CoreException e) { 180 // can't read the members? return empty list below. 181 } 182 183 return new String[0]; 184 } 185 186 @Override getParentFolder()187 public IAbstractFolder getParentFolder() { 188 IContainer p = mContainer.getParent(); 189 if (p != null) { 190 return new IFolderWrapper(p); 191 } 192 193 return null; 194 } 195 196 @Override toString()197 public String toString() { 198 return mFolder.toString(); 199 } 200 } 201