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/*
* Copyright (C) 2013 Jorge Ruesga
*
* 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.ruesga.android.wallpapers.photophase;
import android.util.Log;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
/**
* A helper class to deal with android storage
*/
public final class StorageHelper {
private static final String TAG = "StorageHelper";
private static final String EXTERNAL_REGEXP = "(?i).*vold.*(fuse|vfat|ntfs|exfat|fat32|ext3|ext4).*rw.*";
/**
* Method that returns all the external mounts
*
* @return List<String> All the external mounts
*/
public static List<String> getExternalMounts() {
final List<String> out = new ArrayList<String>();
// Execute the mount command to list mounts
final StringBuilder sb = new StringBuilder();
try {
final Process process =
new ProcessBuilder().command("mount")
.redirectErrorStream(true).start();
process.waitFor();
final InputStream is = process.getInputStream();
byte[] buffer = new byte[1024];
int read = 0;
while ((read = is.read(buffer, 0, 1024)) != -1) {
sb.append(new String(buffer, 0, read));
}
is.close();
} catch (IOException ioex) {
Log.e(TAG, "Failed to list external mounts", ioex);
} catch (InterruptedException iex) {
Log.e(TAG, "Failed to list external mounts", iex);
}
// Parse the output
final String[] lines = sb.toString().split("\n");
for (String line : lines) {
if (!line.toLowerCase(Locale.US).contains("asec")) {
if (line.matches(EXTERNAL_REGEXP)) {
String[] parts = line.split(" ");
for (String part : parts) {
if (part.startsWith("/")) {
if (!part.toLowerCase(Locale.US).contains("vold")) {
out.add(part);
}
}
}
}
}
}
return out;
}
}
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