103 lines
3.3 KiB
Java
103 lines
3.3 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.android.inputmethod.dictionarypack;
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import android.content.ContentValues;
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import android.content.Context;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Locale;
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/**
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* Class to keep long-term log. This is inactive in production, and is only for debug purposes.
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*/
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public class PrivateLog {
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public static final boolean DEBUG = DictionaryProvider.DEBUG;
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private static final String LOG_DATABASE_NAME = "log";
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private static final String LOG_TABLE_NAME = "log";
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private static final int LOG_DATABASE_VERSION = 1;
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private static final String COLUMN_DATE = "date";
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private static final String COLUMN_EVENT = "event";
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private static final String LOG_TABLE_CREATE = "CREATE TABLE " + LOG_TABLE_NAME + " ("
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+ COLUMN_DATE + " TEXT,"
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+ COLUMN_EVENT + " TEXT);";
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private static final SimpleDateFormat sDateFormat =
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new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.US);
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private static PrivateLog sInstance = new PrivateLog();
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private static DebugHelper sDebugHelper = null;
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private PrivateLog() {
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}
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public static synchronized PrivateLog getInstance(final Context context) {
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if (!DEBUG) return sInstance;
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synchronized(PrivateLog.class) {
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if (sDebugHelper == null) {
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sDebugHelper = new DebugHelper(context);
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}
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return sInstance;
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}
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}
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private static class DebugHelper extends SQLiteOpenHelper {
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private DebugHelper(final Context context) {
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super(context, LOG_DATABASE_NAME, null, LOG_DATABASE_VERSION);
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}
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@Override
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public void onCreate(SQLiteDatabase db) {
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if (!DEBUG) return;
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db.execSQL(LOG_TABLE_CREATE);
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insert(db, "Created table");
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}
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@Override
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public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
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if (!DEBUG) return;
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// Remove all data.
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db.execSQL("DROP TABLE IF EXISTS " + LOG_TABLE_NAME);
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onCreate(db);
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insert(db, "Upgrade finished");
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}
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private static void insert(SQLiteDatabase db, String event) {
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if (!DEBUG) return;
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final ContentValues c = new ContentValues(2);
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c.put(COLUMN_DATE, sDateFormat.format(new Date(System.currentTimeMillis())));
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c.put(COLUMN_EVENT, event);
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db.insert(LOG_TABLE_NAME, null, c);
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}
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}
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public static void log(String event) {
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if (!DEBUG) return;
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final SQLiteDatabase l = sDebugHelper.getWritableDatabase();
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DebugHelper.insert(l, event);
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}
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}
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