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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed 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 io.undertow.attribute;

import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;

import io.undertow.UndertowLogger;
import io.undertow.conduits.StoredResponseStreamSinkConduit;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.HeaderMap;
import io.undertow.util.Headers;

/**
 * @author Stuart Douglas
 */
public class StoredResponse implements ExchangeAttribute {

    public static final ExchangeAttribute INSTANCE = new StoredResponse();

    private StoredResponse() {

    }

    @Override
    public String readAttribute(HttpServerExchange exchange) {
        byte[] data = exchange.getAttachment(StoredResponseStreamSinkConduit.RESPONSE);
        if(data == null) {
            return null;
        }
        String charset = extractCharset(exchange.getResponseHeaders());
        if(charset == null) {
            return null;
        }
        try {
            return new String(data, charset);
        } catch (UnsupportedEncodingException e) {
            UndertowLogger.ROOT_LOGGER.debugf(e,"Could not decode response body using charset %s", charset);
            return null;
        }
    }
    private String extractCharset(HeaderMap headers) {
        String contentType = headers.getFirst(Headers.CONTENT_TYPE);
        if (contentType != null) {
            String value = Headers.extractQuotedValueFromHeader(contentType, "charset");
            if (value != null) {
                return value;
            }
            //if it is text we default to ISO_8859_1
            if(contentType.startsWith("text/")) {
                return StandardCharsets.ISO_8859_1.displayName();
            }
            return null;
        }
        return null;
    }

    @Override
    public void writeAttribute(HttpServerExchange exchange, String newValue) throws ReadOnlyAttributeException {
        throw new ReadOnlyAttributeException("Stored Response", newValue);
    }

    @Override
    public String toString() {
        return "%{STORED_RESPONSE}";
    }

    public static class Builder implements ExchangeAttributeBuilder {

        @Override
        public String name() {
            return "Stored Response";
        }

        @Override
        public ExchangeAttribute build(final String token) {
            if (token.equals("%{STORED_RESPONSE}")) {
                return INSTANCE;
            }
            return null;
        }

        @Override
        public int priority() {
            return 0;
        }
    }
}