/**
* Copyright (c) 2013, Redsolution LTD. All rights reserved.
*
* This file is part of Xabber project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License, Version 3.
*
* Xabber is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License,
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.xabber.android.data.database.sqlite;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteStatement;
import com.xabber.android.data.database.DatabaseManager;
/**
* Storage with OTR finger prints and trusted level.
*
* @author alexander.ivanov
*/
public class OTRTable extends AbstractEntityTable {
private static final class Fields implements AbstractEntityTable.Fields {
private Fields() {
}
public static final String USER = "user";
public static final String FINGERPRINT = "fingerprint";
public static final String VERIFIED = "verified";
}
private static final String NAME = "otr";
private static final String[] PROJECTION = new String[]{Fields.ACCOUNT,
Fields.USER, Fields.FINGERPRINT, Fields.VERIFIED,};
private final DatabaseManager databaseManager;
private SQLiteStatement writeStatement;
private final Object writeLock;
private static OTRTable instance;
public static OTRTable getInstance() {
if (instance == null) {
instance = new OTRTable(DatabaseManager.getInstance());
}
return instance;
}
private OTRTable(DatabaseManager databaseManager) {
this.databaseManager = databaseManager;
writeStatement = null;
writeLock = new Object();
}
@Override
public void create(SQLiteDatabase db) {
String sql;
sql = "CREATE TABLE " + NAME + " (" + Fields.ACCOUNT + " TEXT,"
+ Fields.USER + " TEXT," + Fields.FINGERPRINT + " TEXT,"
+ Fields.VERIFIED + " INTEGER);";
DatabaseManager.execSQL(db, sql);
sql = "CREATE UNIQUE INDEX " + NAME + "_list ON " + NAME + " ("
+ Fields.ACCOUNT + ", " + Fields.USER + ", "
+ Fields.FINGERPRINT + ");";
DatabaseManager.execSQL(db, sql);
}
@Override
public void migrate(SQLiteDatabase db, int toVersion) {
super.migrate(db, toVersion);
String sql;
switch (toVersion) {
case 54:
sql = "CREATE TABLE otr (" + "account TEXT," + "user TEXT,"
+ "fingerprint TEXT," + "verified INTEGER);";
DatabaseManager.execSQL(db, sql);
sql = "CREATE UNIQUE INDEX otr_list ON otr (account, user);";
DatabaseManager.execSQL(db, sql);
break;
case 56:
sql = "DROP INDEX otr_list;";
DatabaseManager.execSQL(db, sql);
sql = "CREATE UNIQUE INDEX otr_list ON otr (account, user, fingerprint);";
DatabaseManager.execSQL(db, sql);
default:
break;
}
}
public void write(String account, String user, String fingerprint, boolean verified) {
synchronized (writeLock) {
if (writeStatement == null) {
SQLiteDatabase db = databaseManager.getWritableDatabase();
writeStatement = db.compileStatement("INSERT OR REPLACE INTO "
+ NAME + " (" + Fields.ACCOUNT + ", " + Fields.USER
+ ", " + Fields.FINGERPRINT + ", " + Fields.VERIFIED
+ ") VALUES (?, ?, ?, ?);");
}
writeStatement.bindString(1, account);
writeStatement.bindString(2, user);
writeStatement.bindString(3, fingerprint);
writeStatement.bindLong(4, verified ? 1 : 0);
writeStatement.execute();
}
}
void remove(String account, String user) {
SQLiteDatabase db = databaseManager.getWritableDatabase();
db.delete(NAME, Fields.ACCOUNT + " = ? AND " + Fields.USER + " = ?",
new String[]{account, user});
}
@Override
protected String getTableName() {
return NAME;
}
@Override
protected String[] getProjection() {
return PROJECTION;
}
public static String getFingerprint(Cursor cursor) {
return cursor.getString(cursor.getColumnIndex(Fields.FINGERPRINT));
}
public static boolean isVerified(Cursor cursor) {
return cursor.getLong(cursor.getColumnIndex(Fields.VERIFIED)) != 0;
}
}