components/camel-http4/src/test/java/org/apache/camel/component/http4/HttpProducerTwoHeadersWithSameKeyTest.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.camel.component.http4;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.http.Header;
import org.apache.http.HttpException;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.entity.StringEntity;
import org.apache.http.localserver.LocalTestServer;
import org.apache.http.protocol.HTTP;
import org.apache.http.protocol.HttpContext;
import org.apache.http.protocol.HttpRequestHandler;
import org.junit.Test;

/**
 *
 */
public class HttpProducerTwoHeadersWithSameKeyTest extends BaseHttpTest {

    @Test
    public void testTwoHeadersWithSameKeyHeader() throws Exception {
        Exchange out = template.request("http4://" + getHostName() + ":" + getPort() + "/myapp", new Processor() {
            public void process(Exchange exchange) throws Exception {
                exchange.getIn().setBody(null);
                exchange.getIn().setHeader("from", "me");
                List<String> list = new ArrayList<String>();
                list.add("foo");
                list.add("bar");
                exchange.getIn().setHeader("to", list);
            }
        });

        assertNotNull(out);
        assertFalse("Should not fail", out.isFailed());
        assertEquals("OK", out.getOut().getBody(String.class));
        assertEquals("yes", out.getOut().getHeader("bar"));

        List foo = out.getOut().getHeader("foo", List.class);
        assertNotNull(foo);
        assertEquals(2, foo.size());
        assertEquals("123", foo.get(0));
        assertEquals("456", foo.get(1));
    }

    @Override
    protected void registerHandler(LocalTestServer server) {
        server.register("/myapp", new HttpRequestHandler() {
            @Override
            public void handle(HttpRequest request, HttpResponse response, HttpContext context) throws HttpException, IOException {
                Header[] from = request.getHeaders("from");
                assertEquals("me", from[0].getValue());
                Header[] to = request.getHeaders("to");
                assertEquals("[foo, bar]", to[0].getValue());

                response.setHeader("bar", "yes");
                response.addHeader("foo", "123");
                response.addHeader("foo", "456");
                response.setEntity(new StringEntity("OK", HTTP.ASCII));
                response.setStatusCode(HttpStatus.SC_OK);
            }
        });
    }

}