Add free space precondition check for copy job. (c20c6f65) · Commits · e / os / android_packages_apps_DocumentsUI

src/com/android/documentsui/RootsCache.java

+13 −3

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@ import android.os.Handler;
		import android.os.SystemClock;
		import android.provider.DocumentsContract;
		import android.provider.DocumentsContract.Root;
		import android.provider.DocumentsProvider;
		import android.support.annotation.VisibleForTesting;
		import android.util.Log;

		@@ -350,11 +351,20 @@ public class RootsCache {
		* waiting for all the other roots to come back.
		*/
		public RootInfo getRootOneshot(String authority, String rootId) {
		return getRootOneshot(authority, rootId, false);
		}

		/**
		* Return the requested {@link RootInfo}, but only loading the roots of the requested authority.
		* It always fetches from {@link DocumentsProvider} if forceRefresh is true, which is used to
		* get the most up-to-date free space before starting copy operations.
		*/
		public RootInfo getRootOneshot(String authority, String rootId, boolean forceRefresh) {
		synchronized (mLock) {
		RootInfo root = getRootLocked(authority, rootId);
		RootInfo root = forceRefresh ? null : getRootLocked(authority, rootId);
		if (root == null) {
		mRoots.putAll(authority,
		loadRootsForAuthority(mContext.getContentResolver(), authority, false));
		mRoots.putAll(authority, loadRootsForAuthority(
		mContext.getContentResolver(), authority, forceRefresh));
		root = getRootLocked(authority, rootId);
		}
		return root;

src/com/android/documentsui/services/CopyJob.java

+53 −5

Original line number	Diff line number	Diff line
		@@ -51,9 +51,11 @@ import android.text.format.DateUtils;
		import android.util.Log;
		import android.webkit.MimeTypeMap;

		import com.android.documentsui.UrisSupplier;
		import com.android.documentsui.DocumentsApplication;
		import com.android.documentsui.Metrics;
		import com.android.documentsui.R;
		import com.android.documentsui.RootsCache;
		import com.android.documentsui.UrisSupplier;
		import com.android.documentsui.model.DocumentInfo;
		import com.android.documentsui.model.DocumentStack;
		import com.android.documentsui.model.RootInfo;
		@@ -210,7 +212,6 @@ class CopyJob extends Job {

		@Override
		boolean setUp() {

		try {
		buildDocumentList();
		} catch (ResourceException e) {
		@@ -218,6 +219,7 @@ class CopyJob extends Job {
		return false;
		}

		// Check if user has canceled this task.
		if (isCanceled()) {
		return false;
		}
		@@ -229,7 +231,15 @@ class CopyJob extends Job {
		mBatchSize = -1;
		}

		return true;
		// Check if user has canceled this task. We should check it again here as user cancels
		// tasks in main thread, but this is running in a worker thread. calculateSize() may
		// take a long time during which user can cancel this task, and we don't want to waste
		// resources doing useless large chunk of work.
		if (isCanceled()) {
		return false;
		}

		return checkSpace();
		}

		@Override
		@@ -286,6 +296,44 @@ class CopyJob extends Job {
		return !root.isDownloads() \|\| !doc.isDirectory();
		}

		/**
		* Checks whether the destination folder has enough space to take all source files.
		* @return true if the root has enough space or doesn't provide free space info; otherwise false
		*/
		boolean checkSpace() {
		return checkSpace(mBatchSize);
		}

		/**
		* Checks whether the destination folder has enough space to take files of batchSize
		* @param batchSize the total size of files
		* @return true if the root has enough space or doesn't provide free space info; otherwise false
		*/
		final boolean checkSpace(long batchSize) {
		// Default to be true because if batchSize or available space is invalid, we still let the
		// copy start anyway.
		boolean result = true;
		if (batchSize >= 0) {
		RootsCache cache = DocumentsApplication.getRootsCache(appContext);

		// Query root info here instead of using stack.root because the number there may be
		// stale.
		RootInfo root = cache.getRootOneshot(stack.root.authority, stack.root.rootId, true);
		if (root.availableBytes >= 0) {
		result = (batchSize <= root.availableBytes);
		} else {
		Log.w(TAG, root.toString() + " doesn't provide available bytes.");
		}
		}

		if (!result) {
		failedFileCount += mSrcs.size();
		failedFiles.addAll(mSrcs);
		}

		return result;
		}

		@Override
		boolean hasWarnings() {
		return !convertedFiles.isEmpty();
		@@ -585,7 +633,7 @@ class CopyJob extends Job {
		result += calculateFileSizesRecursively(getClient(src), src.derivedUri);
		} catch (RemoteException e) {
		throw new ResourceException("Failed to obtain the client for %s.",
		src.derivedUri);
		src.derivedUri, e);
		}
		} else {
		result += src.size;
		@@ -603,7 +651,7 @@ class CopyJob extends Job {
		*
		* @throws ResourceException
		*/
		private long calculateFileSizesRecursively(
		long calculateFileSizesRecursively(
		ContentProviderClient client, Uri uri) throws ResourceException {
		final String authority = uri.getAuthority();
		final Uri queryUri = buildChildDocumentsUri(authority, getDocumentId(uri));

src/com/android/documentsui/services/MoveJob.java

+29 −3

Original line number	Diff line number	Diff line
		@@ -29,8 +29,8 @@ import android.provider.DocumentsContract;
		import android.provider.DocumentsContract.Document;
		import android.util.Log;

		import com.android.documentsui.UrisSupplier;
		import com.android.documentsui.R;
		import com.android.documentsui.UrisSupplier;
		import com.android.documentsui.model.DocumentInfo;
		import com.android.documentsui.model.DocumentStack;

		@@ -96,9 +96,35 @@ final class MoveJob extends CopyJob {
		return super.setUp();
		}

		/**
		* {@inheritDoc}
		*
		* Only check space for moves across authorities. For now we don't know if the doc in
		* {@link #mSrcs} is in the same root of destination, and if it's optimized move in the same
		* root it should succeed regardless of free space, but it's for sure a failure if there is no
		* enough free space if docs are moved from another authority.
		*/
		@Override
		public void start() {
		super.start();
		boolean checkSpace() {
		long size = 0;
		for (DocumentInfo src : mSrcs) {
		if (!src.authority.equals(stack.root.authority)) {
		if (src.isDirectory()) {
		try {
		size += calculateFileSizesRecursively(getClient(src), src.derivedUri);
		} catch (RemoteException\|ResourceException e) {
		Log.w(TAG, "Failed to obtain client for %s" + src.derivedUri + ".", e);

		// Failed to calculate size, but move may still succeed.
		return true;
		}
		} else {
		size += src.size;
		}
		}
		}

		return checkSpace(size);
		}

		void processDocument(DocumentInfo src, DocumentInfo srcParent, DocumentInfo dest)