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/*
* Copyright (C) 2012 The CyanogenMod Project
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* 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.cyanogenmod.explorer.commands.java;
import android.content.Context;
import android.util.Log;
import com.cyanogenmod.explorer.commands.ListExecutable;
import com.cyanogenmod.explorer.console.ExecutionException;
import com.cyanogenmod.explorer.console.InsufficientPermissionsException;
import com.cyanogenmod.explorer.console.NoSuchFileOrDirectory;
import com.cyanogenmod.explorer.model.FileSystemObject;
import com.cyanogenmod.explorer.model.ParentDirectory;
import com.cyanogenmod.explorer.util.FileHelper;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
/**
* A class for list information about files and directories.
*/
public class ListCommand extends Program implements ListExecutable {
private static final String TAG = "ListCommand"; //$NON-NLS-1$
private final Context mCtx;
private final String mSrc;
private final LIST_MODE mMode;
private final List<FileSystemObject> mFiles;
/**
* Constructor of <code>ListCommand</code>. List mode.
*
* @param ctx The current context
* @param src The file system object to be listed
* @param mode The mode of listing
*/
public ListCommand(Context ctx, String src, LIST_MODE mode) {
super();
this.mCtx = ctx;
this.mSrc = src;
this.mMode = mode;
this.mFiles = new ArrayList<FileSystemObject>();
}
/**
* {@inheritDoc}
*/
@Override
public List<FileSystemObject> getResult() {
return this.mFiles;
}
/**
* Method that returns a single result of the program invocation.
* Only must be called within a <code>FILEINFO</code> mode listing.
*
* @return FileSystemObject The file system object reference
*/
public FileSystemObject getSingleResult() {
return this.mFiles.get(0);
}
/**
* {@inheritDoc}
*/
@Override
public void execute()
throws InsufficientPermissionsException, NoSuchFileOrDirectory, ExecutionException {
if (isTrace()) {
Log.v(TAG,
String.format("Listing %s. Mode: %s", //$NON-NLS-1$
this.mSrc, this.mMode));
}
File f = new File(this.mSrc);
if (!f.exists()) {
if (isTrace()) {
Log.v(TAG, "Result: FAIL. NoSuchFileOrDirectory"); //$NON-NLS-1$
}
throw new NoSuchFileOrDirectory(this.mSrc);
}
if (this.mMode.compareTo(LIST_MODE.DIRECTORY) == 0) {
File[] files = f.listFiles();
if (files != null) {
for (int i = 0; i < files.length; i++) {
FileSystemObject fso = FileHelper.createFileSystemObject(this.mCtx, files[i]);
if (fso != null) {
if (isTrace()) {
Log.v(TAG, String.valueOf(fso));
}
this.mFiles.add(fso);
}
}
}
//Now if not is the root directory
if (this.mSrc != null &&
this.mSrc.compareTo(FileHelper.ROOT_DIRECTORY) != 0 &&
this.mMode.compareTo(LIST_MODE.DIRECTORY) == 0) {
this.mFiles.add(0, new ParentDirectory(new File(this.mSrc).getParent()));
}
} else {
// Build the parent information
FileSystemObject fso = FileHelper.createFileSystemObject(this.mCtx, f);
if (fso != null) {
if (isTrace()) {
Log.v(TAG, String.valueOf(fso));
}
this.mFiles.add(fso);
}
}
if (isTrace()) {
Log.v(TAG, "Result: OK"); //$NON-NLS-1$
}
}
}
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