2014-01-24 22:58:51 +00:00
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package de.gultsch.chat.persistance;
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import java.util.ArrayList;
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import java.util.List;
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2014-01-27 19:40:42 +00:00
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import de.gultsch.chat.entities.Account;
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import de.gultsch.chat.entities.Contact;
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2014-01-24 22:58:51 +00:00
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import de.gultsch.chat.entities.Conversation;
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2014-01-26 02:27:55 +00:00
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import de.gultsch.chat.entities.Message;
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2014-01-24 22:58:51 +00:00
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import android.content.Context;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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public class DatabaseBackend extends SQLiteOpenHelper {
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2014-01-26 02:27:55 +00:00
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2014-01-24 22:58:51 +00:00
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private static DatabaseBackend instance = null;
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2014-01-26 02:27:55 +00:00
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2014-01-24 22:58:51 +00:00
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private static final String DATABASE_NAME = "history";
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private static final int DATABASE_VERSION = 1;
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public DatabaseBackend(Context context) {
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super(context, DATABASE_NAME, null, DATABASE_VERSION);
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}
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@Override
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public void onCreate(SQLiteDatabase db) {
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2014-01-26 02:27:55 +00:00
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db.execSQL("create table " + Conversation.TABLENAME + " ("
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2014-01-27 19:40:42 +00:00
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+ Conversation.UUID + " TEXT PRIMARY KEY, " + Conversation.NAME
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+ " TEXT, " + Conversation.PHOTO_URI + " TEXT, "
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+ Conversation.ACCOUNT + " TEXT, " + Conversation.CONTACT
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+ " TEXT, " + Conversation.CREATED + " NUMBER, "
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+ Conversation.STATUS + " NUMBER)");
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db.execSQL("create table " + Message.TABLENAME + "( " + Message.UUID
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+ " TEXT PRIMARY KEY, " + Message.CONVERSATION + " TEXT, " + Message.TIME_SENT +" NUMBER, "
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+ Message.COUNTERPART + " TEXT, " + Message.BODY + " TEXT, "
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+ Message.ENCRYPTION + " NUMBER, " + Message.STATUS
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2014-01-26 02:27:55 +00:00
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+ " NUMBER)");
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2014-01-24 22:58:51 +00:00
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}
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@Override
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public void onUpgrade(SQLiteDatabase db, int arg1, int arg2) {
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// TODO Auto-generated method stub
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}
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2014-01-26 02:27:55 +00:00
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2014-01-24 22:58:51 +00:00
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public static synchronized DatabaseBackend getInstance(Context context) {
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if (instance == null) {
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2014-01-25 18:33:12 +00:00
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instance = new DatabaseBackend(context);
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2014-01-24 22:58:51 +00:00
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}
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return instance;
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}
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2014-01-26 02:27:55 +00:00
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2014-01-27 19:40:42 +00:00
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public void createConversation(Conversation conversation) {
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2014-01-24 22:58:51 +00:00
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SQLiteDatabase db = this.getWritableDatabase();
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2014-01-27 19:40:42 +00:00
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db.insert(Conversation.TABLENAME, null, conversation.getContentValues());
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}
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public void createMessage(Message message) {
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SQLiteDatabase db = this.getWritableDatabase();
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db.insert(Message.TABLENAME, null, message.getContentValues());
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2014-01-24 22:58:51 +00:00
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}
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2014-01-26 02:27:55 +00:00
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2014-01-24 22:58:51 +00:00
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public int getConversationCount() {
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SQLiteDatabase db = this.getReadableDatabase();
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Cursor cursor = db.rawQuery(
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2014-01-27 19:40:42 +00:00
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"select count(uuid) as count from "+Conversation.TABLENAME+" where "+Conversation.STATUS+"="+Conversation.STATUS_AVAILABLE, null);
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2014-01-24 22:58:51 +00:00
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cursor.moveToFirst();
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return cursor.getInt(0);
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}
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public List<Conversation> getConversations(int status) {
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List<Conversation> list = new ArrayList<Conversation>();
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SQLiteDatabase db = this.getReadableDatabase();
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String[] selectionArgs = { "" + status };
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Cursor cursor = db.rawQuery("select * from " + Conversation.TABLENAME
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+ " where " + Conversation.STATUS + " = ? order by "
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+ Conversation.CREATED + " desc", selectionArgs);
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2014-01-26 02:27:55 +00:00
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while (cursor.moveToNext()) {
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2014-01-24 22:58:51 +00:00
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list.add(Conversation.fromCursor(cursor));
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}
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return list;
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}
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2014-01-27 19:40:42 +00:00
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public List<Message> getMessages(Conversation conversation, int limit) {
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List<Message> list = new ArrayList<Message>();
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SQLiteDatabase db = this.getReadableDatabase();
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String[] selectionArgs = { conversation.getUuid() };
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Cursor cursor = db.query(Message.TABLENAME, null,Message.CONVERSATION +"=?", selectionArgs, null, null,
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Message.TIME_SENT+" DESC",String.valueOf(limit));
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if (cursor.getCount() > 0 ) {
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cursor.moveToLast();
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do {
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list.add(Message.fromCursor(cursor));
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} while (cursor.moveToPrevious());
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}
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return list;
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}
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public Conversation findConversation(Account account, Contact contact) {
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SQLiteDatabase db = this.getReadableDatabase();
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String[] selectionArgs = { account.getUuid() , contact.getJid() };
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Cursor cursor = db.query(Conversation.TABLENAME, null,Conversation.ACCOUNT+"=? AND "+Conversation.CONTACT+"=?", selectionArgs, null, null, null);
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if (cursor.getCount() == 0) return null;
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cursor.moveToFirst();
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return Conversation.fromCursor(cursor);
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}
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public void updateConversation(Conversation conversation) {
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SQLiteDatabase db = this.getReadableDatabase();
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String[] args = {conversation.getUuid()};
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db.update(Conversation.TABLENAME, conversation.getContentValues(),Conversation.UUID+"=?",args);
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}
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2014-01-24 22:58:51 +00:00
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}
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