@Override
public Cursor query(
Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
String table = null;
final int code = uriMatcher.match(uri);
if (code == CONTACT || code == CONTACT_ID) {
table = ContactTable.TABLE_NAME;
if (sortOrder == null) {
sortOrder = ContactTable.DEFAULT_SORT_ORDER;
}
if (code == CONTACT_ID) {
selection = ContactTable._ID + "=?";
selectionArgs = new String[] {uri.getLastPathSegment()};
}
} else if (code == CONTACT_REQUEST || code == CONTACT_REQUEST_ID) {
table = ContactRequestTable.TABLE_NAME;
if (sortOrder == null) {
sortOrder = ContactRequestTable.DEFAULT_SORT_ORDER;
}
if (code == CONTACT_REQUEST_ID) {
selection = ContactRequestTable._ID + "=?";
selectionArgs = new String[] {uri.getLastPathSegment()};
}
} else if (code == CHAT_MESSAGE || code == CHAT_MESSAGE_ID) {
table = ChatMessageTable.TABLE_NAME;
if (sortOrder == null) {
sortOrder = ChatMessageTable.DEFAULT_SORT_ORDER;
}
if (code == CHAT_MESSAGE_ID) {
selection = ChatMessageTable._ID + "=?";
selectionArgs = new String[] {uri.getLastPathSegment()};
}
} else if (code == CONVERSATION || code == CONVERSATION_ID) {
table = ConversationTable.TABLE_NAME;
if (sortOrder == null) {
sortOrder = ConversationTable.DEFAULT_SORT_ORDER;
}
if (code == CONVERSATION_ID) {
selection = ConversationTable._ID + "=?";
selectionArgs = new String[] {uri.getLastPathSegment()};
}
} else {
throw new IllegalArgumentException("Unknown URI " + uri);
}
SQLiteDatabase db = dbHelper.getReadableDatabase();
Cursor c = db.query(table, projection, selection, selectionArgs, null, null, sortOrder);
c.setNotificationUri(getContext().getContentResolver(), uri);
return c;
}
@Override
public int update(Uri uri, ContentValues values, String where, String[] whereArgs) {
String table = null;
switch (uriMatcher.match(uri)) {
case CONTACT:
table = ContactTable.TABLE_NAME;
break;
case CONTACT_REQUEST:
table = ContactRequestTable.TABLE_NAME;
break;
case CONTACT_REQUEST_ID:
table = ContactRequestTable.TABLE_NAME;
where =
DatabaseUtils.concatenateWhere(
ContactRequestTable._ID + " = " + ContentUris.parseId(uri), where);
break;
case CHAT_MESSAGE_ID:
table = ChatMessageTable.TABLE_NAME;
where =
DatabaseUtils.concatenateWhere(
ChatMessageTable._ID + " = " + ContentUris.parseId(uri), where);
break;
case CONVERSATION:
table = ConversationTable.TABLE_NAME;
break;
case CONVERSATION_ID:
table = ConversationTable.TABLE_NAME;
where =
DatabaseUtils.concatenateWhere(
ConversationTable._ID + " = " + ContentUris.parseId(uri), where);
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
SQLiteDatabase db = dbHelper.getWritableDatabase();
int count = db.update(table, values, where, whereArgs);
getContext().getContentResolver().notifyChange(uri, null);
return count;
}
@Override
public ContentProviderResult[] applyBatch(ArrayList<ContentProviderOperation> operations) {
SQLiteDatabase db = dbHelper.getWritableDatabase();
db.beginTransaction();
try {
ContentProviderResult[] results = super.applyBatch(operations);
db.setTransactionSuccessful();
return results;
} catch (OperationApplicationException e) {
e.printStackTrace();
return null;
} finally {
db.endTransaction();
}
}
@Override
public Uri insert(Uri uri, ContentValues values) {
Uri contentUri = null;
String table = null;
SQLiteDatabase db = dbHelper.getWritableDatabase();
switch (uriMatcher.match(uri)) {
case CONTACT:
table = ContactTable.TABLE_NAME;
contentUri = ContactTable.CONTENT_URI;
break;
case CONTACT_REQUEST:
table = ContactRequestTable.TABLE_NAME;
contentUri = ContactRequestTable.CONTENT_URI;
break;
case CHAT_MESSAGE:
table = ChatMessageTable.TABLE_NAME;
contentUri = ChatMessageTable.CONTENT_URI;
break;
case CONVERSATION:
table = ConversationTable.TABLE_NAME;
contentUri = ConversationTable.CONTENT_URI;
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
long rowId = db.insert(table, null, values);
if (rowId > 0) {
Uri noteUri = ContentUris.withAppendedId(contentUri, rowId);
getContext().getContentResolver().notifyChange(noteUri, null);
return noteUri;
}
throw new SQLException("Failed to insert row into " + uri);
}
@Override
public boolean onCreate() {
dbHelper = ChatDbHelper.getInstance(getContext());
return true;
}