io.undertow.attribute.ConstantExchangeAttribute Maven / Gradle / Ivy
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* Copyright 2014 Red Hat, Inc., and individual contributors
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* 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
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* Unless required by applicable law or agreed to in writing, software
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package io.undertow.attribute;
import io.undertow.server.HttpServerExchange;
/**
* Exchange attribute that represents a fixed value
*
* @author Stuart Douglas
*/
public class ConstantExchangeAttribute implements ExchangeAttribute {
private final String value;
public ConstantExchangeAttribute(final String value) {
this.value = value;
}
@Override
public String readAttribute(final HttpServerExchange exchange) {
return value;
}
@Override
public void writeAttribute(final HttpServerExchange exchange, final String newValue) throws ReadOnlyAttributeException {
throw new ReadOnlyAttributeException("constant", newValue);
}
@Override
public String toString() {
return value;
}
}