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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.eclipse.org/org/documents/epl-v10.php
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ide.eclipse.adt.io;
import com.android.io.IAbstractFile;
import com.android.io.IAbstractFolder;
import com.android.io.IAbstractResource;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import java.util.ArrayList;
/**
* An implementation of {@link IAbstractFolder} on top of either an {@link IFolder} or an
* {@link IContainer} object.
*/
public class IFolderWrapper implements IAbstractFolder {
private final IFolder mFolder; // could be null.
private final IContainer mContainer; // never null.
public IFolderWrapper(IFolder folder) {
mContainer = mFolder = folder;
}
public IFolderWrapper(IContainer container) {
mFolder = container instanceof IFolder ? (IFolder)container : null;
mContainer = container;
}
@Override
public String getName() {
return mContainer.getName();
}
@Override
public boolean exists() {
return mContainer.exists();
}
@Override
public boolean delete() {
try {
mContainer.delete(true /*force*/, new NullProgressMonitor());
return true;
} catch (CoreException e) {
return false;
}
}
@Override
public IAbstractResource[] listMembers() {
try {
IResource[] members = mContainer.members();
final int count = members.length;
IAbstractResource[] afiles = new IAbstractResource[count];
for (int i = 0 ; i < count ; i++) {
IResource f = members[i];
if (f instanceof IFile) {
afiles[i] = new IFileWrapper((IFile) f);
} else {
afiles[i] = new IFolderWrapper((IContainer) f);
}
}
return afiles;
} catch (CoreException e) {
// return empty array below
}
return new IAbstractResource[0];
}
@Override
public boolean hasFile(String name) {
try {
IResource[] files = mContainer.members();
for (IResource file : files) {
if (name.equals(file.getName())) {
return true;
}
}
} catch (CoreException e) {
// we'll return false below.
}
return false;
}
@Override
public IAbstractFile getFile(String name) {
if (mFolder != null) {
IFile file = mFolder.getFile(name);
return new IFileWrapper(file);
}
IFile file = mContainer.getFile(new Path(name));
return new IFileWrapper(file);
}
/**
* Returns the {@link IFolder} object that the receiver could represent.
* Can be <code>null</code>
*/
public IFolder getIFolder() {
return mFolder;
}
@Override
public boolean equals(Object obj) {
if (obj instanceof IFolderWrapper) {
return mFolder.equals(((IFolderWrapper)obj).mFolder);
}
if (obj instanceof IFolder) {
return mFolder.equals(obj);
}
return super.equals(obj);
}
@Override
public int hashCode() {
return mContainer.hashCode();
}
@Override
public IAbstractFolder getFolder(String name) {
if (mFolder != null) {
IFolder folder = mFolder.getFolder(name);
return new IFolderWrapper(folder);
}
IFolder folder = mContainer.getFolder(new Path(name));
return new IFolderWrapper(folder);
}
@Override
public String getOsLocation() {
return mContainer.getLocation().toOSString();
}
@Override
public String[] list(FilenameFilter filter) {
try {
IResource[] members = mContainer.members();
if (members.length > 0) {
ArrayList<String> list = new ArrayList<String>();
for (IResource res : members) {
if (filter.accept(this, res.getName())) {
list.add(res.getName());
}
}
return list.toArray(new String[list.size()]);
}
} catch (CoreException e) {
// can't read the members? return empty list below.
}
return new String[0];
}
@Override
public IAbstractFolder getParentFolder() {
IContainer p = mContainer.getParent();
if (p != null) {
return new IFolderWrapper(p);
}
return null;
}
@Override
public String toString() {
return mFolder.toString();
}
}
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