org.ambraproject.BaseHttpTest.java Source code

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Here is the source code for org.ambraproject.BaseHttpTest.java

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/*
 * $HeadURL$
 * $Id$
 * Copyright (c) 2006-2011 by Public Library of Science
 * http://plos.org
 * http://ambraproject.org
 * 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-2.0Unless 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.ambraproject;

import org.apache.camel.EndpointInject;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.commons.io.IOUtils;
import org.springframework.test.context.ContextConfiguration;

import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;

/**
 * Base Test class for beans that make http requests.  Sets up an embedded http server for the beans to send requests
 * to, and provides a <a href="http://camel.apache.org/mock.html">mock endpoint</a> to set expectations about the http
 * requests the server will receive.  The easiest methods to use to use for this are {@link
 * org.apache.camel.component.mock.MockEndpoint#whenAnyExchangeReceived(org.apache.camel.Processor)} and {@link
 * org.apache.camel.component.mock.MockEndpoint#whenExchangeReceived(int, org.apache.camel.Processor)}, since you can
 * add any logic inside of the {@link org.apache.camel.Processor#process(org.apache.camel.Exchange)} method, including
 * assertions about the content received and behaviour for the response.
 * <p/>
 * To check the received content inside of the processor, use {@link org.apache.camel.Exchange#getIn()}, and to set the
 * response, use {@link org.apache.camel.Exchange#getOut()}. See {@link org.ambraproject.solr.SolrHttpServiceTest}
 * for an example.
 * <p/>
 * If any of the {@link MockEndpoint} expectation methods are used, the test method will need to be annotated with
 * {@link org.springframework.test.annotation.DirtiesContext}
 *
 * @author Alex Kudlick 9/16/11
 */
@ContextConfiguration(locations = "http-test-context.xml")
public abstract class BaseHttpTest extends BaseTest {
    /**
     * The url of the http endpoint
     */
    protected static final String endpointUrl = "http://localhost:1234/select";
    /**
     * Endpoint that sits behind the embedded http server created.  Can be used to set the http response, and make
     * assertions about the received http message.
     */
    @EndpointInject(uri = "mock:end")
    protected MockEndpoint httpEndpoint;

    /**
     * String of valid solr xml response for testing
     */
    protected final String testSolrXml = getTestSolrResponse();

    private String getTestSolrResponse() {
        InputStream inputStream = getClass().getClassLoader().getResourceAsStream("test-solr-response.xml");
        StringWriter writer = new StringWriter();
        try {
            IOUtils.copy(inputStream, writer);
        } catch (IOException e) {
            throw new Error("Error loading test solr xml (should be included in test resources)");
        }
        return writer.toString();
    }

}