Revert "Initial checkin of AOSP Messaging app."

This reverts commit 461a34b466.

Change-Id: Iac4ca77eeaa94989e91dead49a7959c905bd3078

src/com/android/messaging/datamodel/MediaScratchFileProvider.java

@@ -1,132 +0,0 @@
-/*
- * Copyright (C) 2015 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.messaging.datamodel;
-
-import android.content.ContentResolver;
-import android.content.Context;
-import android.database.Cursor;
-import android.database.MatrixCursor;
-import android.database.MatrixCursor.RowBuilder;
-import android.net.Uri;
-import android.provider.OpenableColumns;
-import android.support.v4.util.SimpleArrayMap;
-import android.text.TextUtils;
-
-import com.android.messaging.Factory;
-import com.android.messaging.util.Assert;
-import com.android.messaging.util.LogUtil;
-import com.google.common.annotations.VisibleForTesting;
-
-import java.io.File;
-import java.util.List;
-
-/**
- * A very simple content provider that can serve media files from our cache directory.
- */
-public class MediaScratchFileProvider extends FileProvider {
-    private static final String TAG = LogUtil.BUGLE_TAG;
-
-    private static final SimpleArrayMap<Uri, String> sUriToDisplayNameMap =
-            new SimpleArrayMap<Uri, String>();
-
-    @VisibleForTesting
-    public static final String AUTHORITY =
-            "com.android.messaging.datamodel.MediaScratchFileProvider";
-    private static final String MEDIA_SCRATCH_SPACE_DIR = "mediascratchspace";
-
-    public static boolean isMediaScratchSpaceUri(final Uri uri) {
-        if (uri == null) {
-            return false;
-        }
-
-        final List<String> segments = uri.getPathSegments();
-        return (TextUtils.equals(uri.getScheme(), ContentResolver.SCHEME_CONTENT) &&
-                TextUtils.equals(uri.getAuthority(), AUTHORITY) &&
-                segments.size() == 1 && FileProvider.isValidFileId(segments.get(0)));
-    }
-
-    /**
-     * Returns a uri that can be used to access a raw mms file.
-     *
-     * @return the URI for an raw mms file
-     */
-    public static Uri buildMediaScratchSpaceUri(final String extension) {
-        final Uri uri = FileProvider.buildFileUri(AUTHORITY, extension);
-        final File file = getFileWithExtension(uri.getPath(), extension);
-        if (!ensureFileExists(file)) {
-            LogUtil.e(TAG, "Failed to create temp file " + file.getAbsolutePath());
-        }
-        return uri;
-    }
-
-    public static File getFileFromUri(final Uri uri) {
-        Assert.equals(AUTHORITY, uri.getAuthority());
-        return getFileWithExtension(uri.getPath(), getExtensionFromUri(uri));
-    }
-
-    public static Uri.Builder getUriBuilder() {
-        return (new Uri.Builder()).authority(AUTHORITY).scheme(ContentResolver.SCHEME_CONTENT);
-    }
-
-    @Override
-    File getFile(final String path, final String extension) {
-        return getFileWithExtension(path, extension);
-    }
-
-    private static File getFileWithExtension(final String path, final String extension) {
-        final Context context = Factory.get().getApplicationContext();
-        return new File(getDirectory(context),
-                TextUtils.isEmpty(extension) ? path : path + "." + extension);
-    }
-
-    private static File getDirectory(final Context context) {
-        return new File(context.getCacheDir(), MEDIA_SCRATCH_SPACE_DIR);
-    }
-
-    @Override
-    public Cursor query(final Uri uri, final String[] projection, final String selection,
-            final String[] selectionArgs, final String sortOrder) {
-        if (projection != null && projection.length > 0 &&
-                TextUtils.equals(projection[0], OpenableColumns.DISPLAY_NAME) &&
-                isMediaScratchSpaceUri(uri)) {
-            // Retrieve the display name associated with a temp file. This is used by the Contacts
-            // ImportVCardActivity to retrieve the name of the contact(s) being imported.
-            String displayName;
-            synchronized (sUriToDisplayNameMap) {
-                displayName = sUriToDisplayNameMap.get(uri);
-            }
-            if (!TextUtils.isEmpty(displayName)) {
-                MatrixCursor cursor =
-                        new MatrixCursor(new String[] { OpenableColumns.DISPLAY_NAME });
-                RowBuilder row = cursor.newRow();
-                row.add(displayName);
-                return cursor;
-            }
-        }
-        return null;
-    }
-
-    public static void addUriToDisplayNameEntry(final Uri scratchFileUri,
-            final String displayName) {
-        if (TextUtils.isEmpty(displayName)) {
-            return;
-        }
-        synchronized (sUriToDisplayNameMap) {
-            sUriToDisplayNameMap.put(scratchFileUri, displayName);
-        }
-    }
-}