org.springframework.integration.samples.rest.RestHttpClientTest.java Source code

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Here is the source code for org.springframework.integration.samples.rest.RestHttpClientTest.java

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/*
 * Copyright 2002-2017 the original author or authors.
 *
 * 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 org.springframework.integration.samples.rest;

import static org.junit.Assert.assertTrue;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.StringWriter;
import java.util.Base64;
import java.util.HashMap;
import java.util.Map;

import javax.xml.transform.stream.StreamResult;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.http.client.ClientHttpRequest;
import org.springframework.integration.samples.rest.domain.EmployeeList;
import org.springframework.oxm.jaxb.Jaxb2Marshaller;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.web.client.HttpMessageConverterExtractor;
import org.springframework.web.client.RequestCallback;
import org.springframework.web.client.RestTemplate;

import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * RestHttpClientTest.java: Functional Test to test the REST HTTP Path usage. This test requires
 * rest-http application running in HTTP environment.
 * @author Vigil Bose
 * @author Gary Russell
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath*:META-INF/spring/integration/http-outbound-config.xml" })
public class RestHttpClientTest {

    @Autowired
    private RestTemplate restTemplate;
    private HttpMessageConverterExtractor<EmployeeList> responseExtractor;
    private static Log logger = LogFactory.getLog(RestHttpClientTest.class);
    @Autowired
    private Jaxb2Marshaller marshaller;
    @Autowired
    private ObjectMapper jaxbJacksonObjectMapper;

    @Before
    public void setUp() {
        responseExtractor = new HttpMessageConverterExtractor<EmployeeList>(EmployeeList.class,
                restTemplate.getMessageConverters());

        Map<String, Object> properties = new HashMap<String, Object>();
        properties.put(javax.xml.bind.Marshaller.JAXB_ENCODING, "UTF-8");
        properties.put(javax.xml.bind.Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
        marshaller.setMarshallerProperties(properties);
    }

    /**
     *
     * @throws Exception
     */
    @Test
    public void testGetEmployeeAsXml() throws Exception {

        Map<String, Object> employeeSearchMap = getEmployeeSearchMap("0");

        final String fullUrl = "http://localhost:8080/rest-http/services/employee/{id}/search";

        EmployeeList employeeList = restTemplate.execute(fullUrl, HttpMethod.GET, new RequestCallback() {
            @Override
            public void doWithRequest(ClientHttpRequest request) throws IOException {
                HttpHeaders headers = getHttpHeadersWithUserCredentials(request);
                headers.add("Accept", "application/xml");
            }
        }, responseExtractor, employeeSearchMap);

        logger.info("The employee list size :" + employeeList.getEmployee().size());

        StringWriter sw = new StringWriter();
        StreamResult sr = new StreamResult(sw);

        marshaller.marshal(employeeList, sr);
        logger.info(sr.getWriter().toString());
        assertTrue(employeeList.getEmployee().size() > 0);
    }

    private Map<String, Object> getEmployeeSearchMap(String id) {
        Map<String, Object> employeeSearchMap = new HashMap<String, Object>();
        employeeSearchMap.put("id", id);
        return employeeSearchMap;
    }

    @Test
    public void testGetEmployeeAsJson() throws Exception {
        Map<String, Object> employeeSearchMap = getEmployeeSearchMap("0");

        final String fullUrl = "http://localhost:8080/rest-http/services/employee/{id}/search?format=json";
        HttpHeaders headers = getHttpHeadersWithUserCredentials(new HttpHeaders());
        headers.add("Accept", "application/json");
        HttpEntity<Object> request = new HttpEntity<Object>(headers);

        ResponseEntity<?> httpResponse = restTemplate.exchange(fullUrl, HttpMethod.GET, request, EmployeeList.class,
                employeeSearchMap);
        logger.info("Return Status :" + httpResponse.getHeaders().get("X-Return-Status"));
        logger.info("Return Status Message :" + httpResponse.getHeaders().get("X-Return-Status-Msg"));
        assertTrue(httpResponse.getStatusCode().equals(HttpStatus.OK));
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        jaxbJacksonObjectMapper.writeValue(out, httpResponse.getBody());
        logger.info(new String(out.toByteArray()));
    }

    private HttpHeaders getHttpHeadersWithUserCredentials(ClientHttpRequest request) {
        return (getHttpHeadersWithUserCredentials(request.getHeaders()));
    }

    private HttpHeaders getHttpHeadersWithUserCredentials(HttpHeaders headers) {

        String username = "SPRING";
        String password = "spring";

        String combinedUsernamePassword = username + ":" + password;
        byte[] base64Token = Base64.getEncoder().encode(combinedUsernamePassword.getBytes());
        String base64EncodedToken = new String(base64Token);
        //adding Authorization header for HTTP Basic authentication
        headers.add("Authorization", "Basic  " + base64EncodedToken);

        return headers;
    }
}