package org.frameworkset.web.socket.inf;
import java.nio.charset.Charset;
public class TextMessage extends AbstractWebSocketMessage<String> {
private static final Charset UTF_8 = Charset.forName("UTF-8");
private final byte[] bytes;
/**
* Create a new text WebSocket message from the given CharSequence payload.
* @param payload the non-null payload
*/
public TextMessage(CharSequence payload) {
super(payload.toString(), true);
this.bytes = null;
}
/**
* Create a new text WebSocket message from the given byte[]. It is assumed the
* byte array can be encoded into an UTF-8 String.
*
* @param payload the non-null payload
*/
public TextMessage(byte[] payload) {
super(new String(payload, UTF_8));
this.bytes = payload;
}
/**
* Create a new text WebSocket message with the given payload representing the
* full or partial message content. When the {@code isLast} boolean flag is set
* to {@code false} the message is sent as partial content and more partial
* messages will be expected until the boolean flag is set to {@code true}.
* @param payload the non-null payload
* @param isLast whether this the last part of a series of partial messages
*/
public TextMessage(CharSequence payload, boolean isLast) {
super(payload.toString(), isLast);
this.bytes = null;
}
@Override
public int getPayloadLength() {
return asBytes().length;
}
public byte[] asBytes() {
return (this.bytes != null ? this.bytes : getPayload().getBytes(UTF_8));
}
@Override
protected String toStringPayload() {
return (getPayloadLength() > 10) ? getPayload().substring(0, 10) + ".." : getPayload();
}
}