Merge "Make Cover Art storage more robust to filesystem issues" am: 36fd31bfc8 (3eda771b) · Commits · e / os / android_packages_apps_Bluetooth

src/com/android/bluetooth/avrcpcontroller/AvrcpCoverArtManager.java

+2 −0

Original line number	Diff line number	Diff line
		@@ -77,6 +77,7 @@ public class AvrcpCoverArtManager {
		mContext = context;
		mCoverArtStorage = new AvrcpCoverArtStorage(mContext);
		mCallback = callback;
		mCoverArtStorage.clear();
		}

		/**
		@@ -123,6 +124,7 @@ public class AvrcpCoverArtManager {
		for (BluetoothDevice device : mClients.keySet()) {
		disconnect(device);
		}
		mCoverArtStorage.clear();
		}

		/**

src/com/android/bluetooth/avrcpcontroller/AvrcpCoverArtStorage.java

+49 −10

Original line number	Diff line number	Diff line
		@@ -88,12 +88,17 @@ public class AvrcpCoverArtStorage {

		String path = getImagePath(device, imageHandle);
		if (path == null) {
		debug("Cannot store image. Cannot provide a valid path to storage");
		error("Cannot store image. Cannot provide a valid path to storage");
		return null;
		}

		try {
		File deviceDirectory = new File(getDevicePath(device));
		String deviceDirectoryPath = getDevicePath(device);
		if (deviceDirectoryPath == null) {
		error("Cannot store image. Cannot get a valid path to per-device storage");
		return null;
		}
		File deviceDirectory = new File(deviceDirectoryPath);
		if (!deviceDirectory.exists()) {
		deviceDirectory.mkdirs();
		}
		@@ -122,6 +127,10 @@ public class AvrcpCoverArtStorage {
		debug("Removing image '" + imageHandle + "' from device " + device);
		if (device == null \|\| imageHandle == null \|\| "".equals(imageHandle)) return;
		String path = getImagePath(device, imageHandle);
		if (path == null) {
		error("Cannot remove image. Cannot get a valid path to storage");
		return;
		}
		File file = new File(path);
		if (!file.exists()) return;
		file.delete();
		@@ -136,17 +145,26 @@ public class AvrcpCoverArtStorage {
		public void removeImagesForDevice(BluetoothDevice device) {
		if (device == null) return;
		debug("Remove cover art for device " + device.getAddress());
		File deviceDirectory = new File(getDevicePath(device));
		File[] files = deviceDirectory.listFiles();
		if (files == null) {
		debug("No cover art files to delete");
		String deviceDirectoryPath = getDevicePath(device);
		if (deviceDirectoryPath == null) {
		error("Cannot remove images for device. Cannot get a valid path to storage");
		return;
		}
		for (int i = 0; i < files.length; i++) {
		debug("Deleted " + files[i].getAbsolutePath());
		files[i].delete();
		File deviceDirectory = new File(deviceDirectoryPath);
		deleteStorageDirectory(deviceDirectory);
		}

		/**
		* Clear the entirety of storage
		*/
		public void clear() {
		String storageDirectoryPath = getStorageDirectory();
		if (storageDirectoryPath == null) {
		error("Cannot remove images, cannot get a valid path to storage. Is it mounted?");
		return;
		}
		deviceDirectory.delete();
		File storageDirectory = new File(storageDirectoryPath);
		deleteStorageDirectory(storageDirectory);
		}

		private String getStorageDirectory() {
		@@ -171,6 +189,27 @@ public class AvrcpCoverArtStorage {
		return deviceDir + "/" + imageHandle + ".png";
		}

		private void deleteStorageDirectory(File directory) {
		if (directory == null) {
		error("Cannot delete directory, file is null");
		return;
		}
		if (!directory.exists()) return;
		File[] files = directory.listFiles();
		if (files == null) {
		return;
		}
		for (int i = 0; i < files.length; i++) {
		debug("Deleting " + files[i].getAbsolutePath());
		if (files[i].isDirectory()) {
		deleteStorageDirectory(files[i]);
		} else {
		files[i].delete();
		}
		}
		directory.delete();
		}

		@Override
		public String toString() {
		String s = "CoverArtStorage:\n";

tests/unit/src/com/android/bluetooth/avrcpcontroller/AvrcpCoverArtStorageTest.java

+26 −0

Original line number	Diff line number	Diff line
		@@ -308,4 +308,30 @@ public final class AvrcpCoverArtStorageTest {
		Assert.assertTrue(mAvrcpCoverArtStorage.doesImageExist(mDevice1, mHandle1));
		Assert.assertTrue(mAvrcpCoverArtStorage.doesImageExist(mDevice1, mHandle2));
		}

		@Test
		public void clearStorageOneDevice_allImagesRemoved() {
		mAvrcpCoverArtStorage.addImage(mDevice1, mHandle1, mImage1);
		mAvrcpCoverArtStorage.addImage(mDevice1, mHandle2, mImage1);

		mAvrcpCoverArtStorage.clear();

		Assert.assertFalse(mAvrcpCoverArtStorage.doesImageExist(mDevice1, mHandle1));
		Assert.assertFalse(mAvrcpCoverArtStorage.doesImageExist(mDevice1, mHandle2));
		}

		@Test
		public void clearStorageManyDevices_allImagesRemoved() {
		mAvrcpCoverArtStorage.addImage(mDevice1, mHandle1, mImage1);
		mAvrcpCoverArtStorage.addImage(mDevice1, mHandle2, mImage1);
		mAvrcpCoverArtStorage.addImage(mDevice2, mHandle1, mImage1);
		mAvrcpCoverArtStorage.addImage(mDevice2, mHandle2, mImage1);

		mAvrcpCoverArtStorage.clear();

		Assert.assertFalse(mAvrcpCoverArtStorage.doesImageExist(mDevice1, mHandle1));
		Assert.assertFalse(mAvrcpCoverArtStorage.doesImageExist(mDevice1, mHandle2));
		Assert.assertFalse(mAvrcpCoverArtStorage.doesImageExist(mDevice2, mHandle1));
		Assert.assertFalse(mAvrcpCoverArtStorage.doesImageExist(mDevice2, mHandle2));
		}
		}