/* * 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.net.InetSocketAddress; import io.undertow.server.HttpServerExchange; /** * The local port * * @author Stuart Douglas */ public class LocalPortAttribute implements ExchangeAttribute { public static final String LOCAL_PORT_SHORT = "%p"; public static final String LOCAL_PORT = "%{LOCAL_PORT}"; public static final ExchangeAttribute INSTANCE = new LocalPortAttribute(); private LocalPortAttribute() { } @Override public String readAttribute(final HttpServerExchange exchange) { InetSocketAddress localAddress = (InetSocketAddress) exchange.getConnection().getLocalAddress(); return Integer.toString(localAddress.getPort()); } @Override public void writeAttribute(final HttpServerExchange exchange, final String newValue) throws ReadOnlyAttributeException { throw new ReadOnlyAttributeException("Local port", newValue); } public static final class Builder implements ExchangeAttributeBuilder { @Override public String name() { return "Local Port"; } @Override public ExchangeAttribute build(final String token) { if (token.equals(LOCAL_PORT) || token.equals(LOCAL_PORT_SHORT)) { return LocalPortAttribute.INSTANCE; } return null; } @Override public int priority() { return 0; } } }