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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package nginx.unit.websocket.pojo;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.lang.reflect.Method;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import javax.websocket.DecodeException;
import javax.websocket.Decoder;
import javax.websocket.Decoder.Binary;
import javax.websocket.Decoder.BinaryStream;
import javax.websocket.EndpointConfig;
import javax.websocket.Session;
import org.apache.tomcat.util.res.StringManager;
/**
* ByteBuffer specific concrete implementation for handling whole messages.
*/
public class PojoMessageHandlerWholeBinary
extends PojoMessageHandlerWholeBase<ByteBuffer> {
private static final StringManager sm =
StringManager.getManager(PojoMessageHandlerWholeBinary.class);
private final List<Decoder> decoders = new ArrayList<>();
private final boolean isForInputStream;
public PojoMessageHandlerWholeBinary(Object pojo, Method method,
Session session, EndpointConfig config,
List<Class<? extends Decoder>> decoderClazzes, Object[] params,
int indexPayload, boolean convert, int indexSession,
boolean isForInputStream, long maxMessageSize) {
super(pojo, method, session, params, indexPayload, convert,
indexSession, maxMessageSize);
// Update binary text size handled by session
if (maxMessageSize > -1 && maxMessageSize > session.getMaxBinaryMessageBufferSize()) {
if (maxMessageSize > Integer.MAX_VALUE) {
throw new IllegalArgumentException(sm.getString(
"pojoMessageHandlerWhole.maxBufferSize"));
}
session.setMaxBinaryMessageBufferSize((int) maxMessageSize);
}
try {
if (decoderClazzes != null) {
for (Class<? extends Decoder> decoderClazz : decoderClazzes) {
if (Binary.class.isAssignableFrom(decoderClazz)) {
Binary<?> decoder = (Binary<?>) decoderClazz.getConstructor().newInstance();
decoder.init(config);
decoders.add(decoder);
} else if (BinaryStream.class.isAssignableFrom(
decoderClazz)) {
BinaryStream<?> decoder = (BinaryStream<?>)
decoderClazz.getConstructor().newInstance();
decoder.init(config);
decoders.add(decoder);
} else {
// Text decoder - ignore it
}
}
}
} catch (ReflectiveOperationException e) {
throw new IllegalArgumentException(e);
}
this.isForInputStream = isForInputStream;
}
@Override
protected Object decode(ByteBuffer message) throws DecodeException {
for (Decoder decoder : decoders) {
if (decoder instanceof Binary) {
if (((Binary<?>) decoder).willDecode(message)) {
return ((Binary<?>) decoder).decode(message);
}
} else {
byte[] array = new byte[message.limit() - message.position()];
message.get(array);
ByteArrayInputStream bais = new ByteArrayInputStream(array);
try {
return ((BinaryStream<?>) decoder).decode(bais);
} catch (IOException ioe) {
throw new DecodeException(message, sm.getString(
"pojoMessageHandlerWhole.decodeIoFail"), ioe);
}
}
}
return null;
}
@Override
protected Object convert(ByteBuffer message) {
byte[] array = new byte[message.remaining()];
message.get(array);
if (isForInputStream) {
return new ByteArrayInputStream(array);
} else {
return array;
}
}
@Override
protected void onClose() {
for (Decoder decoder : decoders) {
decoder.destroy();
}
}
}
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