org.eclipse.jetty.websocket.jsr356.endpoints.JsrAnnotatedEventDriver Maven / Gradle / Ivy
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// Copyright (c) 1995-2022 Mort Bay Consulting Pty Ltd and others.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
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//
package org.eclipse.jetty.websocket.jsr356.endpoints;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.nio.ByteBuffer;
import java.util.Map;
import javax.websocket.CloseReason;
import javax.websocket.DecodeException;
import javax.websocket.MessageHandler.Whole;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.websocket.api.WebSocketPolicy;
import org.eclipse.jetty.websocket.api.extensions.Frame;
import org.eclipse.jetty.websocket.common.message.MessageInputStream;
import org.eclipse.jetty.websocket.common.message.MessageReader;
import org.eclipse.jetty.websocket.common.message.SimpleBinaryMessage;
import org.eclipse.jetty.websocket.common.message.SimpleTextMessage;
import org.eclipse.jetty.websocket.jsr356.JsrSession;
import org.eclipse.jetty.websocket.jsr356.annotations.JsrEvents;
import org.eclipse.jetty.websocket.jsr356.messages.BinaryPartialOnMessage;
import org.eclipse.jetty.websocket.jsr356.messages.TextPartialOnMessage;
import org.eclipse.jetty.websocket.jsr356.metadata.EndpointMetadata;
/**
* Base implementation for JSR-356 Annotated event drivers.
*/
public class JsrAnnotatedEventDriver extends AbstractJsrEventDriver
{
private static final Logger LOG = Log.getLogger(JsrAnnotatedEventDriver.class);
private final JsrEvents events;
public JsrAnnotatedEventDriver(WebSocketPolicy policy, EndpointInstance endpointInstance, JsrEvents events)
{
super(policy, endpointInstance);
this.events = events;
EndpointMetadata metadata = endpointInstance.getMetadata();
if (metadata.maxTextMessageSize() >= 1)
policy.setMaxTextMessageSize((int)metadata.maxTextMessageSize());
if (metadata.maxBinaryMessageSize() >= 1)
policy.setMaxBinaryMessageSize((int)metadata.maxBinaryMessageSize());
}
@Override
public void init(JsrSession jsrsession)
{
this.events.init(jsrsession);
}
/**
* Entry point for all incoming binary frames.
*/
@Override
public void onBinaryFrame(ByteBuffer buffer, boolean fin) throws IOException
{
if (LOG.isDebugEnabled())
{
LOG.debug("onBinaryFrame({}, {})", BufferUtil.toDetailString(buffer), fin);
LOG.debug("events.onBinary={}", events.hasBinary());
LOG.debug("events.onBinaryStream={}", events.hasBinaryStream());
}
boolean handled = false;
if (events.hasBinary())
{
handled = true;
if (activeMessage == null)
{
if (events.isBinaryPartialSupported())
{
// Partial Message Support (does not use messageAppender)
if (LOG.isDebugEnabled())
{
LOG.debug("Partial Binary Message: fin={}", fin);
}
activeMessage = new BinaryPartialOnMessage(this);
}
else
{
// Whole Message Support
if (LOG.isDebugEnabled())
{
LOG.debug("Whole Binary Message");
}
activeMessage = new SimpleBinaryMessage(this);
}
}
}
if (events.hasBinaryStream())
{
handled = true;
// Streaming Message Support
if (activeMessage == null)
{
if (LOG.isDebugEnabled())
LOG.debug("Binary Message InputStream");
MessageInputStream stream = new MessageInputStream(session);
activeMessage = stream;
dispatch(() ->
{
try
{
events.callBinaryStream(jsrsession.getAsyncRemote(), websocket, stream);
}
catch (Throwable e)
{
session.close(e);
}
stream.handlerComplete();
});
}
}
if (LOG.isDebugEnabled())
{
LOG.debug("handled = {}", handled);
}
// Process any active MessageAppender
if (handled && (activeMessage != null))
{
appendMessage(buffer, fin);
}
}
/**
* Entry point for binary frames destined for {@link Whole}
*/
@Override
public void onBinaryMessage(byte[] data)
{
if (data == null)
{
return;
}
ByteBuffer buf = ByteBuffer.wrap(data);
if (LOG.isDebugEnabled())
{
LOG.debug("onBinaryMessage({})", BufferUtil.toDetailString(buf));
}
try
{
// FIN is always true here
events.callBinary(jsrsession.getAsyncRemote(), websocket, buf, true);
}
catch (Throwable e)
{
onFatalError(e);
}
}
@Override
protected void onClose(CloseReason closereason)
{
events.callClose(websocket, closereason);
}
@Override
public void onConnect()
{
events.callOpen(websocket, config);
}
@Override
public void onError(Throwable cause)
{
try
{
events.callError(websocket, cause);
}
catch (Throwable e)
{
LOG.warn("Unable to call onError with cause", cause);
LOG.warn("Call to onError resulted in exception", e);
}
}
private void onFatalError(Throwable t)
{
onError(t);
}
@Override
public void onFrame(Frame frame)
{
/* Ignored in JSR-356 */
}
@Override
public void onInputStream(InputStream stream) throws IOException
{
try
{
events.callBinaryStream(jsrsession.getAsyncRemote(), websocket, stream);
}
catch (DecodeException e)
{
throw new RuntimeException("Unable decode input stream", e);
}
}
public void onPartialBinaryMessage(ByteBuffer buffer, boolean fin)
{
try
{
events.callBinary(jsrsession.getAsyncRemote(), websocket, buffer, fin);
}
catch (DecodeException e)
{
throw new RuntimeException("Unable decode partial binary message", e);
}
}
public void onPartialTextMessage(String message, boolean fin)
{
try
{
events.callText(jsrsession.getAsyncRemote(), websocket, message, fin);
}
catch (DecodeException e)
{
throw new RuntimeException("Unable decode partial text message", e);
}
}
@Override
public void onPing(ByteBuffer buffer)
{
// Call pong, as there is no "onPing" method in the JSR
events.callPong(jsrsession.getAsyncRemote(), websocket, buffer);
}
@Override
public void onPong(ByteBuffer buffer)
{
events.callPong(jsrsession.getAsyncRemote(), websocket, buffer);
}
@Override
public void onReader(Reader reader) throws IOException
{
try
{
events.callTextStream(jsrsession.getAsyncRemote(), websocket, reader);
}
catch (DecodeException e)
{
throw new RuntimeException("Unable decode reader", e);
}
}
/**
* Entry point for all incoming text frames.
*/
@Override
public void onTextFrame(ByteBuffer buffer, boolean fin) throws IOException
{
if (LOG.isDebugEnabled())
{
LOG.debug("onTextFrame({}, {})", BufferUtil.toDetailString(buffer), fin);
LOG.debug("events.hasText={}", events.hasText());
LOG.debug("events.hasTextStream={}", events.hasTextStream());
}
boolean handled = false;
if (events.hasText())
{
handled = true;
if (activeMessage == null)
{
if (events.isTextPartialSupported())
{
// Partial Message Support
if (LOG.isDebugEnabled())
{
LOG.debug("Partial Text Message: fin={}", fin);
}
activeMessage = new TextPartialOnMessage(this);
}
else
{
// Whole Message Support
if (LOG.isDebugEnabled())
{
LOG.debug("Whole Text Message");
}
activeMessage = new SimpleTextMessage(this);
}
}
}
if (events.hasTextStream())
{
handled = true;
// Streaming Message Support
if (activeMessage == null)
{
if (LOG.isDebugEnabled())
LOG.debug("Text Message Writer");
MessageReader reader = new MessageReader(session);
activeMessage = reader;
dispatch(() ->
{
try
{
events.callTextStream(jsrsession.getAsyncRemote(), websocket, reader);
}
catch (Throwable e)
{
session.close(e);
return;
}
reader.handlerComplete();
});
}
}
if (LOG.isDebugEnabled())
{
LOG.debug("handled = {}", handled);
}
// Process any active MessageAppender
if (handled && (activeMessage != null))
{
appendMessage(buffer, fin);
}
}
/**
* Entry point for whole text messages
*/
@Override
public void onTextMessage(String message)
{
if (LOG.isDebugEnabled())
{
LOG.debug("onText({})", message);
}
try
{
// FIN is always true here
events.callText(jsrsession.getAsyncRemote(), websocket, message, true);
}
catch (Throwable e)
{
onFatalError(e);
}
}
@Override
public void setPathParameters(Map pathParameters)
{
events.setPathParameters(pathParameters);
}
@Override
public String toString()
{
return String.format("%s[websocket=%s]", this.getClass().getSimpleName(), websocket);
}
}
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