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