243 lines
8.4 KiB
Java
243 lines
8.4 KiB
Java
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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import java.util.UUID;
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import de.gultsch.chat.entities.Account;
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import de.gultsch.chat.entities.Contact;
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import de.gultsch.chat.entities.Conversation;
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import de.gultsch.chat.entities.Message;
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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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import android.util.Log;
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public class DatabaseBackend extends SQLiteOpenHelper {
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private static DatabaseBackend instance = null;
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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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db.execSQL("PRAGMA foreign_keys=ON;");
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db.execSQL("create table " + Account.TABLENAME + "(" + Account.UUID
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+ " TEXT PRIMARY KEY," + Account.USERNAME + " TEXT,"
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+ Account.SERVER + " TEXT," + Account.PASSWORD + " TEXT,"
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+ Account.ROSTERVERSION + " TEXT," + Account.OPTIONS
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+ " NUMBER)");
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db.execSQL("create table " + Conversation.TABLENAME + " ("
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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," + Conversation.MODE
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+ " NUMBER," + "FOREIGN KEY(" + Conversation.ACCOUNT
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+ ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID
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+ ") ON DELETE CASCADE);");
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db.execSQL("create table " + Message.TABLENAME + "( " + Message.UUID
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+ " TEXT PRIMARY KEY, " + Message.CONVERSATION + " TEXT, "
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+ Message.TIME_SENT + " NUMBER, " + Message.COUNTERPART
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+ " TEXT, " + Message.BODY + " TEXT, " + Message.ENCRYPTION
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+ " NUMBER, " + Message.STATUS + " NUMBER," + "FOREIGN KEY("
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+ Message.CONVERSATION + ") REFERENCES "
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+ Conversation.TABLENAME + "(" + Conversation.UUID
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+ ") ON DELETE CASCADE);");
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db.execSQL("create table " + Contact.TABLENAME + "(" + Contact.UUID
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+ " TEXT PRIMARY KEY, " + Contact.ACCOUNT + " TEXT, "
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+ Contact.DISPLAYNAME + " TEXT," + Contact.JID + " TEXT,"
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+ Contact.LASTONLINEPRESENCE + " NUMBER, " + Contact.OPENPGPKEY
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+ " TEXT," + Contact.PHOTOURI + " TEXT," + Contact.SUBSCRIPTION
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+ " TEXT," + Contact.SYSTEMACCOUNT + " NUMBER, "
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+ "FOREIGN KEY(" + Contact.ACCOUNT + ") REFERENCES "
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+ Account.TABLENAME + "(" + Account.UUID
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+ ") ON DELETE CASCADE);");
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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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public static synchronized DatabaseBackend getInstance(Context context) {
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if (instance == null) {
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instance = new DatabaseBackend(context);
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}
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return instance;
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}
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public void createConversation(Conversation conversation) {
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SQLiteDatabase db = this.getWritableDatabase();
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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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}
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public void createAccount(Account account) {
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SQLiteDatabase db = this.getWritableDatabase();
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db.insert(Account.TABLENAME, null, account.getContentValues());
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}
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public void createContact(Contact contact) {
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SQLiteDatabase db = this.getWritableDatabase();
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db.insert(Contact.TABLENAME, null, contact.getContentValues());
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}
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public int getConversationCount() {
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SQLiteDatabase db = this.getReadableDatabase();
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Cursor cursor = db.rawQuery("select count(uuid) as count from "
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+ Conversation.TABLENAME + " where " + Conversation.STATUS
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+ "=" + Conversation.STATUS_AVAILABLE, null);
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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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while (cursor.moveToNext()) {
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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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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
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+ "=?", selectionArgs, null, null, Message.TIME_SENT + " DESC",
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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, String contactJid) {
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SQLiteDatabase db = this.getReadableDatabase();
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String[] selectionArgs = { account.getUuid(), contactJid };
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Cursor cursor = db.query(Conversation.TABLENAME, null,
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Conversation.ACCOUNT + "=? AND " + Conversation.CONTACT + "=?",
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selectionArgs, null, null, null);
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if (cursor.getCount() == 0)
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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.getWritableDatabase();
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String[] args = { conversation.getUuid() };
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db.update(Conversation.TABLENAME, conversation.getContentValues(),
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Conversation.UUID + "=?", args);
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}
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public List<Account> getAccounts() {
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List<Account> list = new ArrayList<Account>();
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SQLiteDatabase db = this.getReadableDatabase();
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Cursor cursor = db.query(Account.TABLENAME, null, null, null, null,
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null, null);
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Log.d("gultsch", "found " + cursor.getCount() + " accounts");
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while (cursor.moveToNext()) {
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list.add(Account.fromCursor(cursor));
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}
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return list;
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}
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public void updateAccount(Account account) {
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SQLiteDatabase db = this.getWritableDatabase();
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String[] args = { account.getUuid() };
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db.update(Account.TABLENAME, account.getContentValues(), Account.UUID
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+ "=?", args);
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}
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public void deleteAccount(Account account) {
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SQLiteDatabase db = this.getWritableDatabase();
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String[] args = { account.getUuid() };
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Log.d("gultsch", "backend trying to delete account with uuid:"
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+ account.getUuid());
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db.delete(Account.TABLENAME, Account.UUID + "=?", args);
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}
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@Override
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public SQLiteDatabase getWritableDatabase() {
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SQLiteDatabase db = super.getWritableDatabase();
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db.execSQL("PRAGMA foreign_keys=ON;");
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return db;
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}
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public void updateMessage(Message message) {
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SQLiteDatabase db = this.getWritableDatabase();
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String[] args = { message.getUuid() };
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db.update(Message.TABLENAME, message.getContentValues(), Message.UUID
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+ "=?", args);
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}
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public void updateContact(Contact contact) {
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SQLiteDatabase db = this.getWritableDatabase();
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String[] args = { contact.getUuid() };
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db.update(Contact.TABLENAME, contact.getContentValues(), Contact.UUID
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+ "=?", args);
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}
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public void mergeContacts(List<Contact> contacts) {
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SQLiteDatabase db = this.getWritableDatabase();
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for (int i = 0; i < contacts.size(); i++) {
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Contact contact = contacts.get(i);
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String[] columns = {Contact.UUID};
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String[] args = {contact.getAccount().getUuid(), contact.getJid()};
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Cursor cursor = db.query(Contact.TABLENAME, columns,Contact.ACCOUNT+"=? AND "+Contact.JID+"=?", args, null, null, null);
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if (cursor.getCount()>=1) {
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cursor.moveToFirst();
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contact.setUuid(cursor.getString(0));
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updateContact(contact);
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} else {
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contact.setUuid(UUID.randomUUID().toString());
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createContact(contact);
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}
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}
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}
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public List<Contact> getContacts() {
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List<Contact> list = new ArrayList<Contact>();
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SQLiteDatabase db = this.getReadableDatabase();
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Cursor cursor = db.query(Contact.TABLENAME, null, null, null, null,
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null, null);
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while (cursor.moveToNext()) {
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list.add(Contact.fromCursor(cursor));
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}
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return list;
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}
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public Contact findContact(Account account, String jid) {
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SQLiteDatabase db = this.getReadableDatabase();
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String[] selectionArgs = { account.getUuid(), jid };
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Cursor cursor = db.query(Contact.TABLENAME, null,
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Contact.ACCOUNT + "=? AND " + Contact.JID + "=?",
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selectionArgs, null, null, null);
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if (cursor.getCount() == 0)
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return null;
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cursor.moveToFirst();
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return Contact.fromCursor(cursor);
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}
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}
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