diff options
Diffstat (limited to 'src/java/nginx/unit/websocket/pojo/PojoMessageHandlerWholeText.java')
-rw-r--r-- | src/java/nginx/unit/websocket/pojo/PojoMessageHandlerWholeText.java | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/java/nginx/unit/websocket/pojo/PojoMessageHandlerWholeText.java b/src/java/nginx/unit/websocket/pojo/PojoMessageHandlerWholeText.java new file mode 100644 index 00000000..59007349 --- /dev/null +++ b/src/java/nginx/unit/websocket/pojo/PojoMessageHandlerWholeText.java @@ -0,0 +1,136 @@ +/* + * 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.IOException; +import java.io.StringReader; +import java.lang.reflect.Method; +import java.util.ArrayList; +import java.util.List; + +import javax.websocket.DecodeException; +import javax.websocket.Decoder; +import javax.websocket.Decoder.Text; +import javax.websocket.Decoder.TextStream; +import javax.websocket.EndpointConfig; +import javax.websocket.Session; + +import org.apache.tomcat.util.res.StringManager; +import nginx.unit.websocket.Util; + + +/** + * Text specific concrete implementation for handling whole messages. + */ +public class PojoMessageHandlerWholeText + extends PojoMessageHandlerWholeBase<String> { + + private static final StringManager sm = + StringManager.getManager(PojoMessageHandlerWholeText.class); + + private final List<Decoder> decoders = new ArrayList<>(); + private final Class<?> primitiveType; + + public PojoMessageHandlerWholeText(Object pojo, Method method, + Session session, EndpointConfig config, + List<Class<? extends Decoder>> decoderClazzes, Object[] params, + int indexPayload, boolean convert, int indexSession, + long maxMessageSize) { + super(pojo, method, session, params, indexPayload, convert, + indexSession, maxMessageSize); + + // Update max text size handled by session + if (maxMessageSize > -1 && maxMessageSize > session.getMaxTextMessageBufferSize()) { + if (maxMessageSize > Integer.MAX_VALUE) { + throw new IllegalArgumentException(sm.getString( + "pojoMessageHandlerWhole.maxBufferSize")); + } + session.setMaxTextMessageBufferSize((int) maxMessageSize); + } + + // Check for primitives + Class<?> type = method.getParameterTypes()[indexPayload]; + if (Util.isPrimitive(type)) { + primitiveType = type; + return; + } else { + primitiveType = null; + } + + try { + if (decoderClazzes != null) { + for (Class<? extends Decoder> decoderClazz : decoderClazzes) { + if (Text.class.isAssignableFrom(decoderClazz)) { + Text<?> decoder = (Text<?>) decoderClazz.getConstructor().newInstance(); + decoder.init(config); + decoders.add(decoder); + } else if (TextStream.class.isAssignableFrom( + decoderClazz)) { + TextStream<?> decoder = + (TextStream<?>) decoderClazz.getConstructor().newInstance(); + decoder.init(config); + decoders.add(decoder); + } else { + // Binary decoder - ignore it + } + } + } + } catch (ReflectiveOperationException e) { + throw new IllegalArgumentException(e); + } + } + + + @Override + protected Object decode(String message) throws DecodeException { + // Handle primitives + if (primitiveType != null) { + return Util.coerceToType(primitiveType, message); + } + // Handle full decoders + for (Decoder decoder : decoders) { + if (decoder instanceof Text) { + if (((Text<?>) decoder).willDecode(message)) { + return ((Text<?>) decoder).decode(message); + } + } else { + StringReader r = new StringReader(message); + try { + return ((TextStream<?>) decoder).decode(r); + } catch (IOException ioe) { + throw new DecodeException(message, sm.getString( + "pojoMessageHandlerWhole.decodeIoFail"), ioe); + } + } + } + return null; + } + + + @Override + protected Object convert(String message) { + return new StringReader(message); + } + + + @Override + protected void onClose() { + for (Decoder decoder : decoders) { + decoder.destroy(); + } + } +} |