io.undertow.attribute.CompositeExchangeAttribute Maven / Gradle / Ivy
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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).
/*
* 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 represents a combination of attributes that should be merged into a single string.
*
* @author Stuart Douglas
*/
public class CompositeExchangeAttribute implements ExchangeAttribute {
private final ExchangeAttribute[] attributes;
public CompositeExchangeAttribute(ExchangeAttribute[] attributes) {
ExchangeAttribute[] copy = new ExchangeAttribute[attributes.length];
System.arraycopy(attributes, 0, copy, 0, attributes.length);
this.attributes = copy;
}
@Override
public String readAttribute(HttpServerExchange exchange) {
final StringBuilder sb = new StringBuilder();
for (int i = 0; i < attributes.length; ++i) {
final String val = attributes[i].readAttribute(exchange);
if(val != null) {
sb.append(val);
}
}
return sb.toString();
}
@Override
public void writeAttribute(HttpServerExchange exchange, String newValue) throws ReadOnlyAttributeException {
throw new ReadOnlyAttributeException("combined", newValue);
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
for (int i = 0; i < attributes.length; ++i) {
sb.append(attributes[i].toString());
}
return sb.toString();
}
}