diff options
Diffstat (limited to 'telephony/common/com/google/android/mms/util/SqliteWrapper.java')
-rw-r--r-- | telephony/common/com/google/android/mms/util/SqliteWrapper.java | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/telephony/common/com/google/android/mms/util/SqliteWrapper.java b/telephony/common/com/google/android/mms/util/SqliteWrapper.java new file mode 100644 index 000000000000..2dd1dc11c2a9 --- /dev/null +++ b/telephony/common/com/google/android/mms/util/SqliteWrapper.java @@ -0,0 +1,128 @@ +/* + * Copyright (C) 2008 Esmertec AG. + * Copyright (C) 2008 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.google.android.mms.util; + +import android.app.ActivityManager; +import android.content.ContentResolver; +import android.content.ContentValues; +import android.content.Context; +import android.database.Cursor; +import android.database.sqlite.SQLiteException; +import android.net.Uri; +import android.util.Log; +import android.widget.Toast; + +import dalvik.annotation.compat.UnsupportedAppUsage; + +public final class SqliteWrapper { + private static final String TAG = "SqliteWrapper"; + private static final String SQLITE_EXCEPTION_DETAIL_MESSAGE + = "unable to open database file"; + + private SqliteWrapper() { + // Forbidden being instantiated. + } + + // FIXME: It looks like outInfo.lowMemory does not work well as we expected. + // after run command: adb shell fillup -p 100, outInfo.lowMemory is still false. + private static boolean isLowMemory(Context context) { + if (null == context) { + return false; + } + + ActivityManager am = (ActivityManager) + context.getSystemService(Context.ACTIVITY_SERVICE); + ActivityManager.MemoryInfo outInfo = new ActivityManager.MemoryInfo(); + am.getMemoryInfo(outInfo); + + return outInfo.lowMemory; + } + + // FIXME: need to optimize this method. + private static boolean isLowMemory(SQLiteException e) { + return e.getMessage().equals(SQLITE_EXCEPTION_DETAIL_MESSAGE); + } + + @UnsupportedAppUsage + public static void checkSQLiteException(Context context, SQLiteException e) { + if (isLowMemory(e)) { + Toast.makeText(context, com.android.internal.R.string.low_memory, + Toast.LENGTH_SHORT).show(); + } else { + throw e; + } + } + + @UnsupportedAppUsage + public static Cursor query(Context context, ContentResolver resolver, Uri uri, + String[] projection, String selection, String[] selectionArgs, String sortOrder) { + try { + return resolver.query(uri, projection, selection, selectionArgs, sortOrder); + } catch (SQLiteException e) { + Log.e(TAG, "Catch a SQLiteException when query: ", e); + checkSQLiteException(context, e); + return null; + } + } + + @UnsupportedAppUsage + public static boolean requery(Context context, Cursor cursor) { + try { + return cursor.requery(); + } catch (SQLiteException e) { + Log.e(TAG, "Catch a SQLiteException when requery: ", e); + checkSQLiteException(context, e); + return false; + } + } + @UnsupportedAppUsage + public static int update(Context context, ContentResolver resolver, Uri uri, + ContentValues values, String where, String[] selectionArgs) { + try { + return resolver.update(uri, values, where, selectionArgs); + } catch (SQLiteException e) { + Log.e(TAG, "Catch a SQLiteException when update: ", e); + checkSQLiteException(context, e); + return -1; + } + } + + @UnsupportedAppUsage + public static int delete(Context context, ContentResolver resolver, Uri uri, + String where, String[] selectionArgs) { + try { + return resolver.delete(uri, where, selectionArgs); + } catch (SQLiteException e) { + Log.e(TAG, "Catch a SQLiteException when delete: ", e); + checkSQLiteException(context, e); + return -1; + } + } + + @UnsupportedAppUsage + public static Uri insert(Context context, ContentResolver resolver, + Uri uri, ContentValues values) { + try { + return resolver.insert(uri, values); + } catch (SQLiteException e) { + Log.e(TAG, "Catch a SQLiteException when insert: ", e); + checkSQLiteException(context, e); + return null; + } + } +} |