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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 io.undertow.server.HttpServerExchange;

/**
 * Exchange attribute that wraps string attributes in quotes.
 *
 * This is mostly used
 *
 * @author Stuart Douglas
 */
public class QuotingExchangeAttribute implements ExchangeAttribute {

    private final ExchangeAttribute exchangeAttribute;

    public static final ExchangeAttributeWrapper WRAPPER = new Wrapper();

    public QuotingExchangeAttribute(ExchangeAttribute exchangeAttribute) {
        this.exchangeAttribute = exchangeAttribute;
    }

    @Override
    public String readAttribute(HttpServerExchange exchange) {
        String svalue = exchangeAttribute.readAttribute(exchange);
        // Does the value contain a " ? If so must encode it
        if (svalue == null || "-".equals(svalue) || svalue.isEmpty()) {
            return "-";
        }

        /* Wrap all quotes in double quotes. */
        StringBuilder buffer = new StringBuilder(svalue.length() + 2);
        buffer.append('\'');
        int i = 0;
        while (i < svalue.length()) {
            int j = svalue.indexOf('\'', i);
            if (j == -1) {
                buffer.append(svalue.substring(i));
                i = svalue.length();
            } else {
                buffer.append(svalue.substring(i, j + 1));
                buffer.append('"');
                i = j + 2;
            }
        }

        buffer.append('\'');
        return buffer.toString();
    }

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

    @Override
    public String toString() {
        return "\"" + exchangeAttribute.toString() + "\"";
    }

    public static class Wrapper implements ExchangeAttributeWrapper {

        @Override
        public ExchangeAttribute wrap(final ExchangeAttribute attribute) {
            return new QuotingExchangeAttribute(attribute);
        }
    }
}