com.mongodb.Bytes Java Examples

The following examples show how to use com.mongodb.Bytes. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: Tailer.java    From zerowing with MIT License 6 votes vote down vote up 
private DBCursor createCursor() {
  DBCollection oplog = _mongo.getDB("local").getCollection("oplog.rs");
  BSONTimestamp startingTimestamp = getStartingTimestamp();

  DBCursor cursor;
  if (startingTimestamp == null) {
    log.info("Tailing the oplog from the beginning...");
    cursor = oplog.find();
  } else {
    log.info("Tailing the oplog from " + startingTimestamp);
    BasicDBObject query = new BasicDBObject("ts", new BasicDBObject("$gt", startingTimestamp));
    cursor = oplog.find(query);
    cursor.addOption(Bytes.QUERYOPTION_OPLOGREPLAY);
  }

  cursor.addOption(Bytes.QUERYOPTION_NOTIMEOUT);
  cursor.addOption(Bytes.QUERYOPTION_TAILABLE);
  cursor.addOption(Bytes.QUERYOPTION_AWAITDATA);

  return cursor;
}
Example #2
Source File: MongoCollectionReader.java    From bluima with Apache License 2.0 5 votes vote down vote up 
protected void initQuery(MongoConnection conn) throws IOException {
    if (query != null)
        cur = conn.coll.find((DBObject) JSON.parse(query));
    else
        cur = conn.coll.find();
    cur.addOption(Bytes.QUERYOPTION_NOTIMEOUT).batchSize(1000);
}
Example #3
Source File: MDbMetaData.java    From birt with Eclipse Public License 1.0 4 votes vote down vote up 
private void addDataType( Object fieldValue )
     {
         // add the data type of given fieldValue to existing set, if exists;
         // the same named field set in a different doc may have a different data type 
         byte nativeBSonDataTypeCode = Bytes.getType( fieldValue );
         if( m_nativeDataTypes == null )
             m_nativeDataTypes = new HashSet<Integer>(2);
if ( nativeBSonDataTypeCode == -1 )
{
	if ( fieldValue instanceof Document )
	{
		nativeBSonDataTypeCode = Bytes.OBJECT;
	}
}
         m_nativeDataTypes.add( Integer.valueOf( nativeBSonDataTypeCode ) );

         // check if field value contains a document,
         // iteratively get field document's nested metadata
         if( nativeBSonDataTypeCode == BSON.ARRAY )
         {
             if( fieldValue instanceof java.util.List )
             {
                 java.util.List<?> listOfObjects = (java.util.List<?>)fieldValue;
                 if( listOfObjects.size() > 0 )
                 {
                     // use first element in array to determine metadata
                     addDataType( listOfObjects.get(0) );    // handles nested arrays
                     return;
                 }
             }
         }

         Object fieldObjValue = 
                 ResultDataHandler.fetchFieldDocument( fieldValue, nativeBSonDataTypeCode );
         
         if( fieldObjValue != null ) // contains nested document
         {
             if( m_childDocMetaData == null )
                 m_childDocMetaData = sm_factory.new DocumentsMetaData();
             m_childDocMetaData.addDocumentMetaData( fieldObjValue, this );
         }
     }