/*
* 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.filemanager.commands.java;
import android.util.Log;
import com.cyanogenmod.filemanager.commands.AsyncResultListener;
import com.cyanogenmod.filemanager.commands.FindExecutable;
import com.cyanogenmod.filemanager.console.ExecutionException;
import com.cyanogenmod.filemanager.console.InsufficientPermissionsException;
import com.cyanogenmod.filemanager.console.NoSuchFileOrDirectory;
import com.cyanogenmod.filemanager.model.FileSystemObject;
import com.cyanogenmod.filemanager.model.Query;
import com.cyanogenmod.filemanager.util.FileHelper;
import com.cyanogenmod.filemanager.util.SearchHelper;
import java.io.File;
import java.util.Arrays;
/**
* A class for search files.
*/
public class FindCommand extends Program implements FindExecutable {
private static final String TAG = "FindCommand"; //$NON-NLS-1$
private final String mDirectory;
private final String[] mQueryRegExp;
private final AsyncResultListener mAsyncResultListener;
private boolean mCancelled;
private boolean mEnded;
private final Object mSync = new Object();
/**
* Constructor of <code>FindCommand</code>.
*
* @param directory The absolute directory where start the search
* @param query The terms to be searched
* @param asyncResultListener The partial result listener
*/
public FindCommand(String directory, Query query, AsyncResultListener asyncResultListener) {
super();
this.mDirectory = directory;
this.mQueryRegExp = createRegexp(directory, query);
this.mAsyncResultListener = asyncResultListener;
this.mCancelled = false;
this.mEnded = false;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isAsynchronous() {
return true;
}
/**
* {@inheritDoc}
*/
@Override
public void execute()
throws InsufficientPermissionsException, NoSuchFileOrDirectory, ExecutionException {
if (isTrace()) {
Log.v(TAG,
String.format("Finding in %s the query %s", //$NON-NLS-1$
this.mDirectory, Arrays.toString(this.mQueryRegExp)));
}
if (this.mAsyncResultListener != null) {
this.mAsyncResultListener.onAsyncStart();
}
File f = new File(this.mDirectory);
if (!f.exists()) {
if (isTrace()) {
Log.v(TAG, "Result: FAIL. NoSuchFileOrDirectory"); //$NON-NLS-1$
}
if (this.mAsyncResultListener != null) {
this.mAsyncResultListener.onException(new NoSuchFileOrDirectory(this.mDirectory));
}
}
if (!f.isDirectory()) {
if (isTrace()) {
Log.v(TAG, "Result: FAIL. NoSuchFileOrDirectory"); //$NON-NLS-1$
}
if (this.mAsyncResultListener != null) {
this.mAsyncResultListener.onException(
new ExecutionException("path exists but it's not a folder")); //$NON-NLS-1$
}
}
// Find the data
findRecursive(f);
if (this.mAsyncResultListener != null) {
this.mAsyncResultListener.onAsyncEnd(this.mCancelled);
}
if (this.mAsyncResultListener != null) {
this.mAsyncResultListener.onAsyncExitCode(0);
}
if (isTrace()) {
Log.v(TAG, "Result: OK"); //$NON-NLS-1$
}
}
/**
* Method that search files recursively
*
* @param folder The folder where to start the search
*/
private void findRecursive(File folder) {
// Obtains the files and folders of the folders
File[] files = folder.listFiles();
if (files != null) {
int cc = files.length;
for (int i = 0; i < cc; i++) {
if (files[i].isDirectory()) {
findRecursive(files[i]);
}
// Check if the file or folder matches the regexp
try {
int ccc = this.mQueryRegExp.length;
for (int j = 0; j < ccc; j++) {
if (files[i].getName().matches(this.mQueryRegExp[j])) {
FileSystemObject fso =
FileHelper.createFileSystemObject(files[i]);
if (fso != null) {
if (isTrace()) {
Log.v(TAG, String.valueOf(fso));
}
if (this.mAsyncResultListener != null) {
this.mAsyncResultListener.onPartialResult(fso);
}
}
}
}
} catch (Exception e) {/**NON-BLOCK**/}
// Check if the process was cancelled
try {
synchronized (this.mSync) {
if (this.mCancelled || this.mEnded) {
this.mSync.notify();
break;
}
}
} catch (Exception e) {/**NON BLOCK**/}
}
}
}
/**
* {@inheritDoc}
*/
@Override
public boolean isCancelled() {
synchronized (this.mSync) {
return this.mCancelled;
}
}
/**
* {@inheritDoc}
*/
@Override
public boolean cancel() {
try {
synchronized (this.mSync) {
this.mCancelled = true;
this.mSync.wait(5000L);
}
} catch (Exception e) {/**NON BLOCK**/}
return true;
}
/**
* {@inheritDoc}
*/
@Override
public boolean end() {
try {
synchronized (this.mSync) {
this.mEnded = true;
this.mSync.wait(5000L);
}
} catch (Exception e) {/**NON BLOCK**/}
return true;
}
/**
* {@inheritDoc}
*/
@Override
public void setOnEndListener(OnEndListener onEndListener) {
//Ignore. Java console don't use this
}
/**
* {@inheritDoc}
*/
@Override
public void setOnCancelListener(OnCancelListener onCancelListener) {
//Ignore. Java console don't use this
}
/**
* {@inheritDoc}
*/
@Override
public boolean isCancellable() {
return true;
}
/**
* {@inheritDoc}
*/
@Override
public AsyncResultListener getAsyncResultListener() {
return this.mAsyncResultListener;
}
/**
* Method that create the regexp of this command, using the directory and
* arguments and creating the regular expressions of the search.
*
* @param directory The directory where to search
* @param query The query make for user
* @return String[] The regexp for filtering files
*/
private static String[] createRegexp(String directory, Query query) {
String[] args = new String[query.getSlotsCount()];
int cc = query.getSlotsCount();
for (int i = 0; i < cc; i++) {
args[i] = SearchHelper.toIgnoreCaseRegExp(query.getSlot(i), true);
}
return args;
}
}