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 getName()51 public String getName() { 52 return mContainer.getName(); 53 } 54 exists()55 public boolean exists() { 56 return mContainer.exists(); 57 } 58 delete()59 public boolean delete() { 60 try { 61 mContainer.delete(true /*force*/, new NullProgressMonitor()); 62 return true; 63 } catch (CoreException e) { 64 return false; 65 } 66 } 67 68 listMembers()69 public IAbstractResource[] listMembers() { 70 try { 71 IResource[] members = mContainer.members(); 72 final int count = members.length; 73 IAbstractResource[] afiles = new IAbstractResource[count]; 74 75 for (int i = 0 ; i < count ; i++) { 76 IResource f = members[i]; 77 if (f instanceof IFile) { 78 afiles[i] = new IFileWrapper((IFile) f); 79 } else { 80 afiles[i] = new IFolderWrapper((IContainer) f); 81 } 82 } 83 84 return afiles; 85 } catch (CoreException e) { 86 // return empty array below 87 } 88 89 return new IAbstractResource[0]; 90 } 91 hasFile(String name)92 public boolean hasFile(String name) { 93 try { 94 IResource[] files = mContainer.members(); 95 for (IResource file : files) { 96 if (name.equals(file.getName())) { 97 return true; 98 } 99 } 100 } catch (CoreException e) { 101 // we'll return false below. 102 } 103 104 return false; 105 } 106 getFile(String name)107 public IAbstractFile getFile(String name) { 108 if (mFolder != null) { 109 IFile file = mFolder.getFile(name); 110 return new IFileWrapper(file); 111 } 112 113 IFile file = mContainer.getFile(new Path(name)); 114 return new IFileWrapper(file); 115 } 116 117 /** 118 * Returns the {@link IFolder} object that the receiver could represent. 119 * Can be <code>null</code> 120 */ getIFolder()121 public IFolder getIFolder() { 122 return mFolder; 123 } 124 125 @Override equals(Object obj)126 public boolean equals(Object obj) { 127 if (obj instanceof IFolderWrapper) { 128 return mFolder.equals(((IFolderWrapper)obj).mFolder); 129 } 130 131 if (obj instanceof IFolder) { 132 return mFolder.equals(obj); 133 } 134 135 return super.equals(obj); 136 } 137 138 @Override hashCode()139 public int hashCode() { 140 return mContainer.hashCode(); 141 } 142 getFolder(String name)143 public IAbstractFolder getFolder(String name) { 144 if (mFolder != null) { 145 IFolder folder = mFolder.getFolder(name); 146 return new IFolderWrapper(folder); 147 } 148 149 IFolder folder = mContainer.getFolder(new Path(name)); 150 return new IFolderWrapper(folder); 151 } 152 getOsLocation()153 public String getOsLocation() { 154 return mContainer.getLocation().toOSString(); 155 } 156 list(FilenameFilter filter)157 public String[] list(FilenameFilter filter) { 158 try { 159 IResource[] members = mContainer.members(); 160 if (members.length > 0) { 161 ArrayList<String> list = new ArrayList<String>(); 162 for (IResource res : members) { 163 if (filter.accept(this, res.getName())) { 164 list.add(res.getName()); 165 } 166 } 167 168 return list.toArray(new String[list.size()]); 169 } 170 } catch (CoreException e) { 171 // can't read the members? return empty list below. 172 } 173 174 return new String[0]; 175 } 176 getParentFolder()177 public IAbstractFolder getParentFolder() { 178 IContainer p = mContainer.getParent(); 179 if (p != null) { 180 return new IFolderWrapper(p); 181 } 182 183 return null; 184 } 185 186 @Override toString()187 public String toString() { 188 return mFolder.toString(); 189 } 190 } 191