package org.frameworkset.web.socket.inf;
import org.frameworkset.util.Assert;
import org.frameworkset.util.ObjectUtils;
public abstract class AbstractWebSocketMessage<T> implements WebSocketMessage<T> {
private final T payload;
private final boolean last;
/**
* Create a new WebSocket message with the given payload.
* @param payload the non-null payload
*/
AbstractWebSocketMessage(T payload) {
this(payload, true);
}
/**
* Create a new WebSocket message 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 if the message is the last of a series of partial messages
*/
AbstractWebSocketMessage(T payload, boolean isLast) {
Assert.notNull(payload, "payload must not be null");
this.payload = payload;
this.last = isLast;
}
/**
* Return the message payload, never be {@code null}.
*/
public T getPayload() {
return this.payload;
}
/**
* Whether this is the last part of a message sent as a series of partial messages.
*/
public boolean isLast() {
return this.last;
}
@Override
public int hashCode() {
return AbstractWebSocketMessage.class.hashCode() * 13 + ObjectUtils.nullSafeHashCode(this.payload);
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!(other instanceof AbstractWebSocketMessage)) {
return false;
}
AbstractWebSocketMessage<?> otherMessage = (AbstractWebSocketMessage<?>) other;
return ObjectUtils.nullSafeEquals(this.payload, otherMessage.payload);
}
@Override
public String toString() {
return getClass().getSimpleName() + " payload= " + toStringPayload()
+ ", byteCount=" + getPayloadLength() + ", last=" + isLast() + "]";
}
protected abstract String toStringPayload();
}