Java 类org.bson.BSONCallback 实例源码

@Converter
public static BasicDBObject fromInputStreamToDBObject(InputStream is, Exchange exchange) {
    BasicDBObject answer = null;
    try {
        byte[] input = IOConverter.toBytes(is);

        if (isBson(input)) {
            BSONCallback callback = new JSONCallback();
            new BasicBSONDecoder().decode(input, callback);
            answer = (BasicDBObject) callback.get();
        } else {
            answer = (BasicDBObject) JSON.parse(IOConverter.toString(input, exchange));
        }
    } catch (Exception e) {
        LOG.warn("String -> DBObject conversion selected, but the following exception occurred. Returning null.", e);
    } finally {
        // we need to make sure to close the input stream
        IOHelper.close(is, "InputStream", LOG);
    }
    return answer;
}

/**
 * Parses a JSON string representing a JSON value
 *
 * @param s the string to parse
 * @return the object
 */
public static Object parse( String s, BSONCallback c ){
    if (s == null || (s=s.trim()).equals("")) {
        return (DBObject)null;
    }

    JSONParser p = new JSONParser(s, c);
    return p.parse();
}

/**
 * Parses a JSON string representing a JSON value
 * 
 * @param s
 *          the string to parse
 * @return the object
 */
public static Object parse(String s, BSONCallback c) {
    if (s == null || (s = s.trim()).equals("")) {
        return (DBObject) null;
    }

    JSONParser p = new JSONParser(s, c);
    return p.parse();
}

/**
    * Create a new parser.
    */
   public JSONParser(String s, BSONCallback callback) {
       this.s = s;
_callback = (callback == null) ? new JSONCallback() : callback;
   }

/**
 * Create a new parser.
 */
public JSONParser(String s, BSONCallback callback) {
    this.s = s;
    _callback = (callback == null) ? new JSONCallback() : callback;
}

/**
    * Create a new parser.
    */
   public JSONParser(String s, BSONCallback callback) {
       this.s = s;
_callback = (callback == null) ? new JSONCallback() : callback;
   }

/**
 * Parses a JSON string and constructs a corresponding Java object by calling
 * the methods of a {@link org.bson.BSONCallback BSONCallback} during parsing.
 * If the callback <code>c</code> is null, this method is equivalent to
 * {@link com.mongodb.JSON#parse(String) parse(String)}.
 * 
 * @param s the string to parse
 * @param c the BSONCallback to call during parsing
 * @return a Java object representing the JSON data
 * @throws JSONParseException if s is not valid JSON 
 */
public static Object parse( String s, BSONCallback c ){
    if (s == null || (s=s.trim()).equals("")) {
        return (DBObject)null;
    }

    JSONParser p = new JSONParser(s, c);
    return p.parse();
}