// ---------------------------------------------------------------------------
// jWebSocket - Data Packet API
// Copyright (c) 2010 Alexander Schulze, Innotrade GmbH
// ---------------------------------------------------------------------------
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published by the
// Free Software Foundation; either version 3 of the License, or (at your
// option) any later version.
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
// more details.
// You should have received a copy of the GNU Lesser General Public License along
// with this program; if not, see <http://www.gnu.org/licenses/lgpl.html>.
// ---------------------------------------------------------------------------
package org.jwebsocket.api;
import java.io.UnsupportedEncodingException;
/**
* Specifies the API for low level data packets which are interchanged between
* client and server. Data packets do not have a special format at this
* communication level.
* @author aschulze
*/
public interface WebSocketPacket {
/**
* Sets the value of the data packet to the given array of bytes.
* @param aByteArray
*/
void setByteArray(byte[] aByteArray);
/**
* Sets the value of the data packet to the given string by using
* default encoding.
* @param aString
*/
void setString(String aString);
/**
* Sets the value of the data packet to the given string by using
* the passed encoding.
* @param aString
* @param aEncoding
* @throws UnsupportedEncodingException
*/
void setString(String aString, String aEncoding) throws UnsupportedEncodingException;
/**
* Sets the value of the data packet to the given string by using
* UTF-8 encoding.
* @param aString
*/
void setUTF8(String aString);
/**
* Sets the value of the data packet to the given string by using
* 7 bit US-ASCII encoding.
* @param aString
*/
void setASCII(String aString);
/**
* Returns the content of the data packet as an array of bytes.
* @return Data packet as array of bytes.
*/
byte[] getByteArray();
/**
* Returns the content of the data packet as a string using default
* encoding.
* @return Raw Data packet as string with default encoding.
*/
String getString();
/**
* Returns the content of the data packet as a string using the passed
* encoding.
* @param aEncoding
* @return String using the passed encoding.
* @throws UnsupportedEncodingException
*/
String getString(String aEncoding) throws UnsupportedEncodingException;
/**
* Interprets the data packet as a UTF8 string and returns the string
* in UTF-8 encoding. If an exception occurs "null" is returned.
* @return Data packet as UTF-8 string or {@code null} if not convertible.
*/
String getUTF8();
/**
* Interprets the data packet as a US-ASCII string and returns the string
* in US-ASCII encoding. If an exception occurs "null" is returned.
* @return Data packet as US-ASCII string or {@code null} if not convertible.
*/
String getASCII();
int getFrameType();
void setFrameType(int aFrameType);
}