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Add a file collector to the platform.

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The file collector takes in a file path and recursively
classifies and provides the amount of storage provided by
each classification. This information can be surfaced in
Settings or to fulfill storage telemetry calculations.

Bug: 32207207
Test: System server instrumentation tests
Change-Id: Iff03260859cd4bbd11e7d60b1825115aad540d48
This commit is contained in:
Daniel Nishi
2016-11-10 14:10:15 -08:00
parent 2f42cbcad5
commit be770dce08
3 changed files with 361 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

218
services/core/java/com/android/server/storage/FileCollector.java Normal file
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@@ -0,0 +1,218 @@
/*
* Copyright (C) 2016 The Android Open Source 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/LICENSE2.0
*
* 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.android.server.storage;
import android.annotation.IntDef;
import android.os.storage.StorageManager;
import android.util.ArrayMap;
import java.io.File;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Map;
/**
* FileCollector walks over a directory and categorizes storage usage by their type.
*/
public class FileCollector {
private static final int UNRECOGNIZED = -1;
private static final int IMAGES = 0;
private static final int VIDEO = 1;
private static final int AUDIO = 2;
@Retention(RetentionPolicy.SOURCE)
@IntDef({
UNRECOGNIZED,
IMAGES,
VIDEO,
AUDIO })
private @interface FileTypes {}
private static final Map<String, Integer> EXTENSION_MAP = new ArrayMap<String, Integer>();
static {
// Audio
EXTENSION_MAP.put("aac", AUDIO);
EXTENSION_MAP.put("amr", AUDIO);
EXTENSION_MAP.put("awb", AUDIO);
EXTENSION_MAP.put("snd", AUDIO);
EXTENSION_MAP.put("flac", AUDIO);
EXTENSION_MAP.put("mp3", AUDIO);
EXTENSION_MAP.put("mpga", AUDIO);
EXTENSION_MAP.put("mpega", AUDIO);
EXTENSION_MAP.put("mp2", AUDIO);
EXTENSION_MAP.put("m4a", AUDIO);
EXTENSION_MAP.put("aif", AUDIO);
EXTENSION_MAP.put("aiff", AUDIO);
EXTENSION_MAP.put("aifc", AUDIO);
EXTENSION_MAP.put("gsm", AUDIO);
EXTENSION_MAP.put("mka", AUDIO);
EXTENSION_MAP.put("m3u", AUDIO);
EXTENSION_MAP.put("wma", AUDIO);
EXTENSION_MAP.put("wax", AUDIO);
EXTENSION_MAP.put("ra", AUDIO);
EXTENSION_MAP.put("rm", AUDIO);
EXTENSION_MAP.put("ram", AUDIO);
EXTENSION_MAP.put("pls", AUDIO);
EXTENSION_MAP.put("sd2", AUDIO);
EXTENSION_MAP.put("wav", AUDIO);
EXTENSION_MAP.put("ogg", AUDIO);
EXTENSION_MAP.put("oga", AUDIO);
// Video
EXTENSION_MAP.put("3gpp", VIDEO);
EXTENSION_MAP.put("3gp", VIDEO);
EXTENSION_MAP.put("3gpp2", VIDEO);
EXTENSION_MAP.put("3g2", VIDEO);
EXTENSION_MAP.put("avi", VIDEO);
EXTENSION_MAP.put("dl", VIDEO);
EXTENSION_MAP.put("dif", VIDEO);
EXTENSION_MAP.put("dv", VIDEO);
EXTENSION_MAP.put("fli", VIDEO);
EXTENSION_MAP.put("m4v", VIDEO);
EXTENSION_MAP.put("ts", VIDEO);
EXTENSION_MAP.put("mpeg", VIDEO);
EXTENSION_MAP.put("mpg", VIDEO);
EXTENSION_MAP.put("mpe", VIDEO);
EXTENSION_MAP.put("mp4", VIDEO);
EXTENSION_MAP.put("vob", VIDEO);
EXTENSION_MAP.put("qt", VIDEO);
EXTENSION_MAP.put("mov", VIDEO);
EXTENSION_MAP.put("mxu", VIDEO);
EXTENSION_MAP.put("webm", VIDEO);
EXTENSION_MAP.put("lsf", VIDEO);
EXTENSION_MAP.put("lsx", VIDEO);
EXTENSION_MAP.put("mkv", VIDEO);
EXTENSION_MAP.put("mng", VIDEO);
EXTENSION_MAP.put("asf", VIDEO);
EXTENSION_MAP.put("asx", VIDEO);
EXTENSION_MAP.put("wm", VIDEO);
EXTENSION_MAP.put("wmv", VIDEO);
EXTENSION_MAP.put("wmx", VIDEO);
EXTENSION_MAP.put("wvx", VIDEO);
EXTENSION_MAP.put("movie", VIDEO);
EXTENSION_MAP.put("wrf", VIDEO);
// Images
EXTENSION_MAP.put("bmp", IMAGES);
EXTENSION_MAP.put("gif", IMAGES);
EXTENSION_MAP.put("jpg", IMAGES);
EXTENSION_MAP.put("jpeg", IMAGES);
EXTENSION_MAP.put("jpe", IMAGES);
EXTENSION_MAP.put("pcx", IMAGES);
EXTENSION_MAP.put("png", IMAGES);
EXTENSION_MAP.put("svg", IMAGES);
EXTENSION_MAP.put("svgz", IMAGES);
EXTENSION_MAP.put("tiff", IMAGES);
EXTENSION_MAP.put("tif", IMAGES);
EXTENSION_MAP.put("wbmp", IMAGES);
EXTENSION_MAP.put("webp", IMAGES);
EXTENSION_MAP.put("dng", IMAGES);
EXTENSION_MAP.put("cr2", IMAGES);
EXTENSION_MAP.put("ras", IMAGES);
EXTENSION_MAP.put("art", IMAGES);
EXTENSION_MAP.put("jng", IMAGES);
EXTENSION_MAP.put("nef", IMAGES);
EXTENSION_MAP.put("nrw", IMAGES);
EXTENSION_MAP.put("orf", IMAGES);
EXTENSION_MAP.put("rw2", IMAGES);
EXTENSION_MAP.put("pef", IMAGES);
EXTENSION_MAP.put("psd", IMAGES);
EXTENSION_MAP.put("pnm", IMAGES);
EXTENSION_MAP.put("pbm", IMAGES);
EXTENSION_MAP.put("pgm", IMAGES);
EXTENSION_MAP.put("ppm", IMAGES);
EXTENSION_MAP.put("srw", IMAGES);
EXTENSION_MAP.put("arw", IMAGES);
EXTENSION_MAP.put("rgb", IMAGES);
EXTENSION_MAP.put("xbm", IMAGES);
EXTENSION_MAP.put("xpm", IMAGES);
EXTENSION_MAP.put("xwd", IMAGES);
}
/**
* Returns the file categorization measurement result.
* @param path Directory to collect and categorize storage in.
*/
public static MeasurementResult getMeasurementResult(File path) {
return collectFiles(StorageManager.maybeTranslateEmulatedPathToInternal(path),
new MeasurementResult());
}
private static MeasurementResult collectFiles(File file, MeasurementResult result) {
File[] files = file.listFiles();
if (files == null) {
return result;
}
for (File f : files) {
if (f.isDirectory()) {
try {
collectFiles(f, result);
} catch (StackOverflowError e) {
return result;
}
} else {
handleFile(result, f);
}
}
return result;
}
private static void handleFile(MeasurementResult result, File f) {
long fileSize = f.length();
int fileType = EXTENSION_MAP.getOrDefault(getExtensionForFile(f), UNRECOGNIZED);
switch (fileType) {
case AUDIO:
result.audioSize += fileSize;
break;
case VIDEO:
result.videosSize += fileSize;
break;
case IMAGES:
result.imagesSize += fileSize;
break;
default:
result.miscSize += fileSize;
}
}
private static String getExtensionForFile(File file) {
String fileName = file.getName();
int index = fileName.lastIndexOf('.');
if (index == -1) {
return "";
}
return fileName.substring(index + 1).toLowerCase();
}
/**
* MeasurementResult contains a storage categorization result.
*/
public static class MeasurementResult {
public long imagesSize;
public long videosSize;
public long miscSize;
public long audioSize;
/**
* Sums up the storage taken by all of the categorizable sizes in the measurement.
*/
public long totalAccountedSize() {
return imagesSize + videosSize + miscSize + audioSize;
}
}
}

3
services/tests/servicestests/Android.mk
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@@ -21,7 +21,8 @@ LOCAL_STATIC_JAVA_LIBRARIES := \
guava \
android-support-test \
mockito-target \
ShortcutManagerTestUtils
ShortcutManagerTestUtils \
truth-prebuilt
LOCAL_JAVA_LIBRARIES := android.test.runner

141
services/tests/servicestests/src/com/android/server/storage/FileCollectorTest.java Normal file
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/*
* Copyright (C) 2016 The Android Open Source 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.android.server.storage;
import android.test.AndroidTestCase;
import com.android.server.storage.FileCollector.MeasurementResult;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.io.File;
import java.io.PrintStream;
import static com.google.common.truth.Truth.assertThat;
@RunWith(JUnit4.class)
public class FileCollectorTest extends AndroidTestCase {
@Rule
public TemporaryFolder temporaryFolder;
@Before
public void setUp() throws Exception {
temporaryFolder = new TemporaryFolder();
temporaryFolder.create();
}
@Test
public void testEmpty() throws Exception {
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.totalAccountedSize()).isEqualTo(0L);
}
@Test
public void testImageFile() throws Exception {
writeDataToFile(temporaryFolder.newFile("test.jpg"), "1234");
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.imagesSize).isEqualTo(4);
}
@Test
public void testVideoFile() throws Exception {
writeDataToFile(temporaryFolder.newFile("test.mp4"), "1234");
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.videosSize).isEqualTo(4);
}
@Test
public void testAudioFile() throws Exception {
writeDataToFile(temporaryFolder.newFile("test.mp3"), "1234");
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.audioSize).isEqualTo(4);
}
@Test
public void testMiscFile() throws Exception {
writeDataToFile(temporaryFolder.newFile("test"), "1234");
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.miscSize).isEqualTo(4);
}
@Test
public void testNestedFile() throws Exception {
File directory = temporaryFolder.newFolder();
writeDataToFile(new File(directory, "test"), "1234");
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.miscSize).isEqualTo(4);
}
@Test
public void testMultipleFiles() throws Exception {
writeDataToFile(temporaryFolder.newFile("test"), "1234");
writeDataToFile(temporaryFolder.newFile("test2"), "12345");
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.miscSize).isEqualTo(9);
}
@Test
public void testTotalSize() throws Exception {
writeDataToFile(temporaryFolder.newFile("test.jpg"), "1");
writeDataToFile(temporaryFolder.newFile("test.mp3"), "1");
writeDataToFile(temporaryFolder.newFile("test.mp4"), "1");
writeDataToFile(temporaryFolder.newFile("test"), "1");
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.totalAccountedSize()).isEqualTo(4);
}
@Test
public void testFileEndsWithPeriod() throws Exception {
writeDataToFile(temporaryFolder.newFile("test."), "1");
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.miscSize).isEqualTo(1);
assertThat(result.totalAccountedSize()).isEqualTo(1);
}
public void testIgnoreFileExtensionCase() throws Exception {
writeDataToFile(temporaryFolder.newFile("test.JpG"), "1234");
MeasurementResult result = FileCollector.getMeasurementResult(temporaryFolder.getRoot());
assertThat(result.imagesSize).isEqualTo(4);
}
private void writeDataToFile(File f, String data) throws Exception{
PrintStream out = new PrintStream(f);
out.print(data);
out.close();
}
}