| /* |
| * Copyright (C) 2011 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.inputmethod.dictionarypack; |
| |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.database.sqlite.SQLiteDatabase; |
| import android.database.sqlite.SQLiteOpenHelper; |
| |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.Locale; |
| |
| /** |
| * Class to keep long-term log. This is inactive in production, and is only for debug purposes. |
| */ |
| public class PrivateLog { |
| |
| public static final boolean DEBUG = DictionaryProvider.DEBUG; |
| |
| private static final String LOG_DATABASE_NAME = "log"; |
| private static final String LOG_TABLE_NAME = "log"; |
| private static final int LOG_DATABASE_VERSION = 1; |
| |
| private static final String COLUMN_DATE = "date"; |
| private static final String COLUMN_EVENT = "event"; |
| |
| private static final String LOG_TABLE_CREATE = "CREATE TABLE " + LOG_TABLE_NAME + " (" |
| + COLUMN_DATE + " TEXT," |
| + COLUMN_EVENT + " TEXT);"; |
| |
| private static final SimpleDateFormat sDateFormat = |
| new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.US); |
| |
| private static PrivateLog sInstance = new PrivateLog(); |
| private static DebugHelper sDebugHelper = null; |
| |
| private PrivateLog() { |
| } |
| |
| public static synchronized PrivateLog getInstance(final Context context) { |
| if (!DEBUG) return sInstance; |
| synchronized(PrivateLog.class) { |
| if (sDebugHelper == null) { |
| sDebugHelper = new DebugHelper(context); |
| } |
| return sInstance; |
| } |
| } |
| |
| private static class DebugHelper extends SQLiteOpenHelper { |
| |
| private DebugHelper(final Context context) { |
| super(context, LOG_DATABASE_NAME, null, LOG_DATABASE_VERSION); |
| } |
| |
| @Override |
| public void onCreate(SQLiteDatabase db) { |
| if (!DEBUG) return; |
| db.execSQL(LOG_TABLE_CREATE); |
| insert(db, "Created table"); |
| } |
| |
| @Override |
| public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { |
| if (!DEBUG) return; |
| // Remove all data. |
| db.execSQL("DROP TABLE IF EXISTS " + LOG_TABLE_NAME); |
| onCreate(db); |
| insert(db, "Upgrade finished"); |
| } |
| |
| private static void insert(SQLiteDatabase db, String event) { |
| if (!DEBUG) return; |
| final ContentValues c = new ContentValues(2); |
| c.put(COLUMN_DATE, sDateFormat.format(new Date(System.currentTimeMillis()))); |
| c.put(COLUMN_EVENT, event); |
| db.insert(LOG_TABLE_NAME, null, c); |
| } |
| |
| } |
| |
| public static void log(String event) { |
| if (!DEBUG) return; |
| final SQLiteDatabase l = sDebugHelper.getWritableDatabase(); |
| DebugHelper.insert(l, event); |
| } |
| } |