resttemplate usage sample

sample-resttemplate_pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <artifactId>sample-resttemplate</artifactId>
    <groupId>com.github.eeichinger.blogs</groupId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <properties>
        <!-- global build settings -->
        <java.version>1.8</java.version>
        <file.encoding>utf-8</file.encoding>
        <project.build.sourceEncoding>${file.encoding}</project.build.sourceEncoding>
        <project.reporting.outputEncoding>${file.encoding}</project.reporting.outputEncoding>
        <maven.compiler.source>${java.version}</maven.compiler.source>
        <maven.compiler.target>${java.version}</maven.compiler.target>

        <!-- dependency versions -->
        <wiremock.version>1.58</wiremock.version>
        <jackson.version>2.6.5</jackson.version>
        <spring.version>4.2.5.RELEASE</spring.version>
        <spring.boot.version>1.3.3.RELEASE</spring.boot.version>
        <spring-restdocs.version>1.0.1.RELEASE</spring-restdocs.version>
        <lombok.version>1.16.8</lombok.version>
        <slf4j.version>1.7.21</slf4j.version>
        <logback.version>1.1.6</logback.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-framework-bom</artifactId>
                <version>${spring.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <!-- lombok for convenience, see https://projectlombok.org/ -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${lombok.version}</version>
            <scope>provided</scope>
        </dependency>

        <!-- use slf4j and redirect all other libs to it -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>${logback.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>${slf4j.version}</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>log4j-over-slf4j</artifactId>
            <version>${slf4j.version}</version>
            <scope>runtime</scope>
        </dependency>

        <!-- spring resttemplate deps -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- json message binding -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <!-- xml message binding -->
        <dependency>
            <groupId>com.fasterxml.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-xml</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <!-- test deps -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.github.tomakehurst</groupId>
            <artifactId>wiremock</artifactId>
            <version>${wiremock.version}</version>
            <scope>test</scope>
        </dependency>

    </dependencies>
</project>

sample-resttemplate_src_test_java_com_github_eeichinger_resttemplate_sample_XmlRestTemplateTest.java

package com.github.eeichinger.resttemplate_sample;

import com.github.tomakehurst.wiremock.client.WireMock;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
import lombok.Data;
import org.junit.Rule;
import org.junit.Test;
import org.springframework.web.client.RestTemplate;

import static com.github.tomakehurst.wiremock.client.WireMock.stubFor;
import static org.hamcrest.CoreMatchers.startsWith;
import static org.junit.Assert.assertThat;

/**
 * @author Erich Eichinger
 * @since 05/05/2016
 */
public class XmlRestTemplateTest {

    @Rule
    public WireMockRule wireMockRule = new WireMockRule(0);

    @Test
    public void fetchQuoteXml_should_pickup_correct_xmlmessageconverter_based_on_response_contenttype() {
        stubFor(WireMock.get(WireMock.urlMatching("/sample/fetchxml"))
                        .willReturn(WireMock
                                .aResponse()
                                .withStatus(200)
                                .withHeader("Content-Type", "text/xml")
                                .withBody("" +
                                        "<quote>\n" +
                                        "    <type>success</type>\n" +
                                        "    <value>\n" +
                                        "       <id>8</id>\n" +
                                        "       <quote>Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live</quote>\n" +
                                        "    </value>\n" +
                                        "</quote>\n"
                                )
                        ));

        RestTemplate restTemplate = new RestTemplate();
        Quote quote = restTemplate.getForObject("http://localhost:" + wireMockRule.port() + "/sample/fetchxml", Quote.class);

        assertThat(quote.getValue().getQuote(), startsWith("Always code as if the guy"));
    }

    @Test
    public void fetchQuoteJson_should_pickup_correct_jsonmessageconverter_based_on_response_contenttype() {
        stubFor(WireMock.get(WireMock.urlMatching("/sample/fetchjson"))
                        .willReturn(WireMock
                                .aResponse()
                                .withStatus(200)
                                .withHeader("Content-Type", "application/json")
                                .withBody("  {\n" +
                                        "        \"type\": \"success\",\n" +
                                        "        \"value\": {\n" +
                                        "            \"id\": 8,\n" +
                                        "            \"quote\": \"Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live\"\n" +
                                        "        }\n" +
                                        "    }\n"
                                )
                        ));

        RestTemplate restTemplate = new RestTemplate();
        Quote quote = restTemplate.getForObject("http://localhost:" + wireMockRule.port() + "/sample/fetchjson", Quote.class);

        assertThat(quote.getValue().getQuote(), startsWith("Always code as if the guy"));
    }

    @Data
    public static class Quote {

        String type;
        Value value;

        @Data
        public static class Value {
            Long id;
            String quote;
        }
    }
}