Merge pull request #8038 from sjmillington/rest-move-1

[BAEL-18364] move spring-rest-*** articles - 1

spring-rest-full/README.md

@@ -12,8 +12,6 @@ The "Learn Spring Security" Classes: http://github.learnspringsecurity.com
 - [Integration Testing with the Maven Cargo plugin](https://www.baeldung.com/integration-testing-with-the-maven-cargo-plugin)
 - [Project Configuration with Spring](https://www.baeldung.com/project-configuration-with-spring)
 - [Metrics for your Spring REST API](https://www.baeldung.com/spring-rest-api-metrics)
-- [Spring Security Expressions - hasRole Example](https://www.baeldung.com/spring-security-expressions-basic)
-
 
 ### Build the Project
 ```

spring-rest/README.md

@@ -10,16 +10,11 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 - [Returning Custom Status Codes from Spring Controllers](https://www.baeldung.com/spring-mvc-controller-custom-http-status-code)
 - [Binary Data Formats in a Spring REST API](https://www.baeldung.com/spring-rest-api-with-binary-data-formats)
 - [Guide to UriComponentsBuilder in Spring](https://www.baeldung.com/spring-uricomponentsbuilder)
-- [Introduction to FindBugs](https://www.baeldung.com/intro-to-findbugs)
 - [A Custom Media Type for a Spring REST API](https://www.baeldung.com/spring-rest-custom-media-type)
 - [HTTP PUT vs HTTP PATCH in a REST API](https://www.baeldung.com/http-put-patch-difference-spring)
 - [Spring – Log Incoming Requests](https://www.baeldung.com/spring-http-logging)
-- [Introduction to CheckStyle](https://www.baeldung.com/checkstyle-java)
 - [How to Change the Default Port in Spring Boot](https://www.baeldung.com/spring-boot-change-port)
 - [Guide to DeferredResult in Spring](https://www.baeldung.com/spring-deferred-result)
 - [Spring Custom Property Editor](https://www.baeldung.com/spring-mvc-custom-property-editor)
-- [Using the Spring RestTemplate Interceptor](https://www.baeldung.com/spring-rest-template-interceptor)
-- [Get and Post Lists of Objects with RestTemplate](https://www.baeldung.com/spring-rest-template-list)
 - [How to Set a Header on a Response with Spring 5](https://www.baeldung.com/spring-response-header)
-- [Uploading MultipartFile with Spring RestTemplate](https://www.baeldung.com/spring-rest-template-multipart-upload)
 - [Download an Image or a File with Spring MVC](https://www.baeldung.com/spring-controller-return-image-file)

spring-rest/pom.xml

@@ -20,10 +20,7 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-thymeleaf</artifactId>
-        </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-actuator</artifactId>
@@ -141,11 +138,7 @@
             <artifactId>commons-io</artifactId>
             <version>${commons-io.version}</version>
         </dependency>
-        <dependency>
-            <groupId>au.com.dius</groupId>
-            <artifactId>pact-jvm-provider-junit_2.11</artifactId>
-            <version>${pact.version}</version>
-        </dependency>
+
         <dependency>
             <groupId>io.rest-assured</groupId>
             <artifactId>rest-assured</artifactId>
@@ -176,21 +169,7 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-war-plugin</artifactId>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>${checkstyle-maven-plugin.version}</version>
-                <configuration>
-                    <configLocation>checkstyle.xml</configLocation>
-                </configuration>
-                <executions>
-                    <execution>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
+
         </plugins>
     </build>
 
@@ -250,18 +229,7 @@
 
     </profiles>
 
-    <reporting>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>${checkstyle-maven-plugin.version}</version>
-                <configuration>
-                    <configLocation>checkstyle.xml</configLocation>
-                </configuration>
-            </plugin>
-        </plugins>
-    </reporting>
+
 
     <properties>
         <commons-fileupload.version>1.3.2</commons-fileupload.version>
@@ -275,7 +243,7 @@
         <!-- Maven plugins -->
         <cargo-maven2-plugin.version>1.6.0</cargo-maven2-plugin.version>
         <findbugs-maven-plugin.version>3.0.4</findbugs-maven-plugin.version>
-        <checkstyle-maven-plugin.version>3.0.0</checkstyle-maven-plugin.version>
+
         <dependency.locations.enabled>false</dependency.locations.enabled>
 
         <json.path.version>2.2.0</json.path.version>

spring-resttemplate/README.md

@@ -13,4 +13,7 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 - [Mocking a RestTemplate in Spring](https://www.baeldung.com/spring-mock-rest-template)
 - [RestTemplate Post Request with JSON](https://www.baeldung.com/spring-resttemplate-post-json)
 - [Download a Large File Through a Spring RestTemplate](https://www.baeldung.com/spring-resttemplate-download-large-file)
+- [Using the Spring RestTemplate Interceptor](https://www.baeldung.com/spring-rest-template-interceptor)
+- [Uploading MultipartFile with Spring RestTemplate](https://www.baeldung.com/spring-rest-template-multipart-upload)
+- [Get and Post Lists of Objects with RestTemplate](https://www.baeldung.com/spring-rest-template-list)
 - [Copy of RestTemplate Post Request with JSON](https://www.baeldung.com/spring-resttemplate-post-json-test)

spring-resttemplate/pom.xml

@@ -21,6 +21,10 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-actuator</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-devtools</artifactId>
@@ -32,7 +36,13 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
+        </dependency>
+
+
+        <dependency>
+            <groupId>au.com.dius</groupId>
+            <artifactId>pact-jvm-provider-junit_2.11</artifactId>
+            <version>${pact.version}</version>
         </dependency>
 
         <!-- Spring -->
@@ -111,11 +121,13 @@
 
         <!-- test scoped -->
 
+        <!-- https://mvnrepository.com/artifact/junit/junit -->
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <scope>test</scope>
+            <version>4.12</version>
         </dependency>
+
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>hamcrest-core</artifactId>
@@ -295,6 +307,7 @@
 
         <!-- okhttp -->
         <com.squareup.okhttp3.version>3.4.1</com.squareup.okhttp3.version>
+        <pact.version>3.5.11</pact.version>
     </properties>
 
 </project>

spring-resttemplate/src/main/java/com/baeldung/sampleapp/config/RestClientConfig.java

@@ -1,29 +1,29 @@
-package com.baeldung.sampleapp.config;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.http.client.ClientHttpRequestInterceptor;
-import org.springframework.util.CollectionUtils;
-import org.springframework.web.client.RestTemplate;
-
-import com.baeldung.sampleapp.interceptors.RestTemplateHeaderModifierInterceptor;
-
-@Configuration
-public class RestClientConfig {
-
-    @Bean
-    public RestTemplate restTemplate() {
-        RestTemplate restTemplate = new RestTemplate();
-
-        List<ClientHttpRequestInterceptor> interceptors = restTemplate.getInterceptors();
-        if (CollectionUtils.isEmpty(interceptors)) {
-            interceptors = new ArrayList<ClientHttpRequestInterceptor>();
-        }
-        interceptors.add(new RestTemplateHeaderModifierInterceptor());
-        restTemplate.setInterceptors(interceptors);
-        return restTemplate;
-    }
-}
+package com.baeldung.sampleapp.config;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.util.CollectionUtils;
+import org.springframework.web.client.RestTemplate;
+
+import com.baeldung.sampleapp.interceptors.RestTemplateHeaderModifierInterceptor;
+
+@Configuration
+public class RestClientConfig {
+
+    @Bean
+    public RestTemplate restTemplate() {
+        RestTemplate restTemplate = new RestTemplate();
+
+        List<ClientHttpRequestInterceptor> interceptors = restTemplate.getInterceptors();
+        if (CollectionUtils.isEmpty(interceptors)) {
+            interceptors = new ArrayList<ClientHttpRequestInterceptor>();
+        }
+        interceptors.add(new RestTemplateHeaderModifierInterceptor());
+        restTemplate.setInterceptors(interceptors);
+        return restTemplate;
+    }
+}

spring-resttemplate/src/main/java/com/baeldung/sampleapp/interceptors/RestTemplateHeaderModifierInterceptor.java

@@ -1,18 +1,18 @@
-package com.baeldung.sampleapp.interceptors;
-
-import java.io.IOException;
-
-import org.springframework.http.HttpRequest;
-import org.springframework.http.client.ClientHttpRequestExecution;
-import org.springframework.http.client.ClientHttpRequestInterceptor;
-import org.springframework.http.client.ClientHttpResponse;
-
-public class RestTemplateHeaderModifierInterceptor implements ClientHttpRequestInterceptor {
-
-    @Override
-    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
-        ClientHttpResponse response = execution.execute(request, body); 
-        response.getHeaders().add("Foo", "bar");
-        return response;
-    }
-}
+package com.baeldung.sampleapp.interceptors;
+
+import java.io.IOException;
+
+import org.springframework.http.HttpRequest;
+import org.springframework.http.client.ClientHttpRequestExecution;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.http.client.ClientHttpResponse;
+
+public class RestTemplateHeaderModifierInterceptor implements ClientHttpRequestInterceptor {
+
+    @Override
+    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
+        ClientHttpResponse response = execution.execute(request, body); 
+        response.getHeaders().add("Foo", "bar");
+        return response;
+    }
+}

spring-resttemplate/src/main/java/com/baeldung/web/log/app/TaxiFareRequestInterceptor.java

@@ -1,44 +1,44 @@
-package com.baeldung.web.log.app;
-
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.stereotype.Component;
-import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
-import org.springframework.web.util.ContentCachingRequestWrapper;
-
-import com.baeldung.web.log.util.RequestLoggingUtil;
-
-@Component
-public class TaxiFareRequestInterceptor extends HandlerInterceptorAdapter {
-
-    private final static Logger LOGGER = LoggerFactory.getLogger(TaxiFareRequestInterceptor.class);
-
-    @Override
-    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
-        String postData;
-        HttpServletRequest requestCacheWrapperObject = null;
-        try {
-            // Uncomment to produce the stream closed issue
-            // postData = RequestLoggingUtil.getStringFromInputStream(request.getInputStream());
-
-            // To overcome request stream closed issue
-            requestCacheWrapperObject = new ContentCachingRequestWrapper(request);
-            requestCacheWrapperObject.getParameterMap();
-        } catch (Exception exception) {
-            exception.printStackTrace();
-        } finally {
-            postData = RequestLoggingUtil.readPayload(requestCacheWrapperObject);
-            LOGGER.info("REQUEST DATA: " + postData);
-        }
-        return true;
-    }
-
-    @Override
-    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
-        LOGGER.info("RESPONSE: " + response.getStatus());
-    }
-
-}
+package com.baeldung.web.log.app;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
+import org.springframework.web.util.ContentCachingRequestWrapper;
+
+import com.baeldung.web.log.util.RequestLoggingUtil;
+
+@Component
+public class TaxiFareRequestInterceptor extends HandlerInterceptorAdapter {
+
+    private final static Logger LOGGER = LoggerFactory.getLogger(TaxiFareRequestInterceptor.class);
+
+    @Override
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+        String postData;
+        HttpServletRequest requestCacheWrapperObject = null;
+        try {
+            // Uncomment to produce the stream closed issue
+            // postData = RequestLoggingUtil.getStringFromInputStream(request.getInputStream());
+
+            // To overcome request stream closed issue
+            requestCacheWrapperObject = new ContentCachingRequestWrapper(request);
+            requestCacheWrapperObject.getParameterMap();
+        } catch (Exception exception) {
+            exception.printStackTrace();
+        } finally {
+            postData = RequestLoggingUtil.readPayload(requestCacheWrapperObject);
+            LOGGER.info("REQUEST DATA: " + postData);
+        }
+        return true;
+    }
+
+    @Override
+    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
+        LOGGER.info("RESPONSE: " + response.getStatus());
+    }
+
+}

spring-resttemplate/src/main/java/com/baeldung/web/log/config/RequestLoggingFilterConfig.java

@@ -1,20 +1,20 @@
-package com.baeldung.web.log.config;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.web.filter.CommonsRequestLoggingFilter;
-
-@Configuration
-public class RequestLoggingFilterConfig {
-
-    @Bean
-    public CommonsRequestLoggingFilter logFilter() {
-        CommonsRequestLoggingFilter filter = new CommonsRequestLoggingFilter();
-        filter.setIncludeQueryString(true);
-        filter.setIncludePayload(true);
-        filter.setMaxPayloadLength(10000);
-        filter.setIncludeHeaders(false);
-        filter.setAfterMessagePrefix("REQUEST DATA : ");
-        return filter;
-    }
-}
+package com.baeldung.web.log.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.filter.CommonsRequestLoggingFilter;
+
+@Configuration
+public class RequestLoggingFilterConfig {
+
+    @Bean
+    public CommonsRequestLoggingFilter logFilter() {
+        CommonsRequestLoggingFilter filter = new CommonsRequestLoggingFilter();
+        filter.setIncludeQueryString(true);
+        filter.setIncludePayload(true);
+        filter.setMaxPayloadLength(10000);
+        filter.setIncludeHeaders(false);
+        filter.setAfterMessagePrefix("REQUEST DATA : ");
+        return filter;
+    }
+}

spring-resttemplate/src/main/java/com/baeldung/web/log/config/TaxiFareMVCConfig.java

@@ -1,19 +1,19 @@
-package com.baeldung.web.log.config;
-
-import com.baeldung.web.log.app.TaxiFareRequestInterceptor;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
-
-@Configuration
-public class TaxiFareMVCConfig implements WebMvcConfigurer {
-
-    @Autowired
-    private TaxiFareRequestInterceptor taxiFareRequestInterceptor;
-
-    @Override
-    public void addInterceptors(InterceptorRegistry registry) {
-        registry.addInterceptor(taxiFareRequestInterceptor).addPathPatterns("/**/taxifare/**/");
-    }
-}
+package com.baeldung.web.log.config;
+
+import com.baeldung.web.log.app.TaxiFareRequestInterceptor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class TaxiFareMVCConfig implements WebMvcConfigurer {
+
+    @Autowired
+    private TaxiFareRequestInterceptor taxiFareRequestInterceptor;
+
+    @Override
+    public void addInterceptors(InterceptorRegistry registry) {
+        registry.addInterceptor(taxiFareRequestInterceptor).addPathPatterns("/**/taxifare/**/");
+    }
+}

spring-resttemplate/src/main/java/com/baeldung/web/log/data/RateCard.java

@@ -1,31 +1,31 @@
-package com.baeldung.web.log.data;
-
-public class RateCard {
-
-    private String nightSurcharge;
-    private String ratePerMile;
-
-    public RateCard() {
-        nightSurcharge = "Extra $ 100";
-        ratePerMile = "$ 10 Per Mile";
-    }
-
-
-    public String getNightSurcharge() {
-        return nightSurcharge;
-    }
-
-    public void setNightSurcharge(String nightSurcharge) {
-        this.nightSurcharge = nightSurcharge;
-    }
-
-    public String getRatePerMile() {
-        return ratePerMile;
-    }
-
-    public void setRatePerMile(String ratePerMile) {
-        this.ratePerMile = ratePerMile;
-    }
-
-
-}
+package com.baeldung.web.log.data;
+
+public class RateCard {
+
+    private String nightSurcharge;
+    private String ratePerMile;
+
+    public RateCard() {
+        nightSurcharge = "Extra $ 100";
+        ratePerMile = "$ 10 Per Mile";
+    }
+
+
+    public String getNightSurcharge() {
+        return nightSurcharge;
+    }
+
+    public void setNightSurcharge(String nightSurcharge) {
+        this.nightSurcharge = nightSurcharge;
+    }
+
+    public String getRatePerMile() {
+        return ratePerMile;
+    }
+
+    public void setRatePerMile(String ratePerMile) {
+        this.ratePerMile = ratePerMile;
+    }
+
+
+}

spring-resttemplate/src/main/java/com/baeldung/web/log/data/TaxiRide.java

@@ -1,33 +1,33 @@
-package com.baeldung.web.log.data;
-
-public class TaxiRide {
-
-    private Boolean isNightSurcharge;
-    private Long distanceInMile;
-
-    public TaxiRide() {
-    }
-
-    public TaxiRide(Boolean isNightSurcharge, Long distanceInMile) {
-        this.isNightSurcharge = isNightSurcharge;
-        this.distanceInMile = distanceInMile;
-    }
-
-
-    public Boolean getIsNightSurcharge() {
-        return isNightSurcharge;
-    }
-
-    public void setIsNightSurcharge(Boolean isNightSurcharge) {
-        this.isNightSurcharge = isNightSurcharge;
-    }
-
-    public Long getDistanceInMile() {
-        return distanceInMile;
-    }
-
-    public void setDistanceInMile(Long distanceInMile) {
-        this.distanceInMile = distanceInMile;
-    }
-
-}
+package com.baeldung.web.log.data;
+
+public class TaxiRide {
+
+    private Boolean isNightSurcharge;
+    private Long distanceInMile;
+
+    public TaxiRide() {
+    }
+
+    public TaxiRide(Boolean isNightSurcharge, Long distanceInMile) {
+        this.isNightSurcharge = isNightSurcharge;
+        this.distanceInMile = distanceInMile;
+    }
+
+
+    public Boolean getIsNightSurcharge() {
+        return isNightSurcharge;
+    }
+
+    public void setIsNightSurcharge(Boolean isNightSurcharge) {
+        this.isNightSurcharge = isNightSurcharge;
+    }
+
+    public Long getDistanceInMile() {
+        return distanceInMile;
+    }
+
+    public void setDistanceInMile(Long distanceInMile) {
+        this.distanceInMile = distanceInMile;
+    }
+
+}

spring-resttemplate/src/main/java/com/baeldung/web/log/service/TaxiFareCalculatorService.java

@@ -1,14 +1,14 @@
-package com.baeldung.web.log.service;
-
-import com.baeldung.web.log.data.TaxiRide;
-import org.springframework.stereotype.Service;
-
-@Service
-public class TaxiFareCalculatorService {
-
-    public String calculateFare(TaxiRide taxiRide) {
-        return String.valueOf((Long) (taxiRide.getIsNightSurcharge()
-          ? taxiRide.getDistanceInMile() * 10 + 100
-          : taxiRide.getDistanceInMile() * 10));
-    }
-}
+package com.baeldung.web.log.service;
+
+import com.baeldung.web.log.data.TaxiRide;
+import org.springframework.stereotype.Service;
+
+@Service
+public class TaxiFareCalculatorService {
+
+    public String calculateFare(TaxiRide taxiRide) {
+        return String.valueOf((Long) (taxiRide.getIsNightSurcharge()
+          ? taxiRide.getDistanceInMile() * 10 + 100
+          : taxiRide.getDistanceInMile() * 10));
+    }
+}

spring-resttemplate/src/main/java/com/baeldung/web/log/util/RequestLoggingUtil.java

@@ -1,38 +1,38 @@
-package com.baeldung.web.log.util;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.StringWriter;
-
-import javax.servlet.http.HttpServletRequest;
-
-import org.apache.commons.io.IOUtils;
-import org.springframework.web.util.ContentCachingRequestWrapper;
-import org.springframework.web.util.WebUtils;
-
-public class RequestLoggingUtil {
-
-    public static String getStringFromInputStream(InputStream is) {
-        StringWriter writer = new StringWriter();
-        String encoding = "UTF-8";
-        try {
-            IOUtils.copy(is, writer, encoding);
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        return writer.toString();
-    }
-
-    public static String readPayload(final HttpServletRequest request) throws IOException {
-        String payloadData = null;
-        ContentCachingRequestWrapper contentCachingRequestWrapper = WebUtils.getNativeRequest(request, ContentCachingRequestWrapper.class);
-        if (null != contentCachingRequestWrapper) {
-            byte[] buf = contentCachingRequestWrapper.getContentAsByteArray();
-            if (buf.length > 0) {
-                payloadData = new String(buf, 0, buf.length, contentCachingRequestWrapper.getCharacterEncoding());
-            }
-        }
-        return payloadData;
-    }
-
-}
+package com.baeldung.web.log.util;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringWriter;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.apache.commons.io.IOUtils;
+import org.springframework.web.util.ContentCachingRequestWrapper;
+import org.springframework.web.util.WebUtils;
+
+public class RequestLoggingUtil {
+
+    public static String getStringFromInputStream(InputStream is) {
+        StringWriter writer = new StringWriter();
+        String encoding = "UTF-8";
+        try {
+            IOUtils.copy(is, writer, encoding);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return writer.toString();
+    }
+
+    public static String readPayload(final HttpServletRequest request) throws IOException {
+        String payloadData = null;
+        ContentCachingRequestWrapper contentCachingRequestWrapper = WebUtils.getNativeRequest(request, ContentCachingRequestWrapper.class);
+        if (null != contentCachingRequestWrapper) {
+            byte[] buf = contentCachingRequestWrapper.getContentAsByteArray();
+            if (buf.length > 0) {
+                payloadData = new String(buf, 0, buf.length, contentCachingRequestWrapper.getCharacterEncoding());
+            }
+        }
+        return payloadData;
+    }
+
+}

spring-security-rest/README.md

@@ -15,3 +15,4 @@ The "Learn Spring Security" Classes: http://github.learnspringsecurity.com
 - [Servlet 3 Async Support with Spring MVC and Spring Security](https://www.baeldung.com/spring-mvc-async-security)
 - [Intro to Spring Security Expressions](https://www.baeldung.com/spring-security-expressions)
 - [Spring Security for a REST API](https://www.baeldung.com/securing-a-restful-web-service-with-spring-security)
+- [Spring Security Expressions - hasRole Example](https://www.baeldung.com/spring-security-expressions-basic)

testing-modules/testing-libraries/README.md

@@ -6,5 +6,7 @@
 - [Cucumber and Scenario Outline](http://www.baeldung.com/cucumber-scenario-outline)
 - [Cucumber Java 8 Support](http://www.baeldung.com/cucumber-java-8-support)
 - [Introduction to Lambda Behave](http://www.baeldung.com/lambda-behave)
+- [Introduction to CheckStyle](https://www.baeldung.com/checkstyle-java)
+- [Introduction to FindBugs](https://www.baeldung.com/intro-to-findbugs)
 
 

testing-modules/testing-libraries/pom.xml

@@ -35,11 +35,60 @@
             <version>${cucumber.version}</version>
             <scope>test</scope>
         </dependency>
+        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <version>2.2.0.RELEASE</version>
+        </dependency>
+
     </dependencies>
 
+    <build>
+        <finalName>testing-libraries</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <version>${checkstyle-maven-plugin.version}</version>
+                <configuration>
+                    <configLocation>checkstyle.xml</configLocation>
+                </configuration>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+    <reporting>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <version>${checkstyle-maven-plugin.version}</version>
+                <configuration>
+                    <configLocation>checkstyle.xml</configLocation>
+                </configuration>
+            </plugin>
+        </plugins>
+    </reporting>
+
     <properties>
         <lambda-behave.version>0.4</lambda-behave.version>
         <cucumber.version>1.2.5</cucumber.version>
+        <checkstyle-maven-plugin.version>3.0.0</checkstyle-maven-plugin.version>
     </properties>
 
 

testing-modules/testing-libraries/src/main/java/com/baeldung/sampleapp/web/controller/SimplePostController.java

@@ -0,0 +1,74 @@
+package com.baeldung.sampleapp.web.controller;
+
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import com.baeldung.sampleapp.web.dto.Foo;
+
+// used to test HttpClientPostingTest
+@RestController
+public class SimplePostController {
+
+    @RequestMapping(value = "/users", method = RequestMethod.POST)
+    public String postUser(@RequestParam final String username, @RequestParam final String password) {
+        return "Success" + username;
+    }
+
+    @RequestMapping(value = "/users/detail", method = RequestMethod.POST)
+    public String postUserDetail(@RequestBody final Foo entity) {
+        return "Success" + entity.getId();
+    }
+
+    @RequestMapping(value = "/users/multipart", method = RequestMethod.POST)
+    public String uploadFile(@RequestParam final String username, @RequestParam final String password, @RequestParam("file") final MultipartFile file) {
+        if (!file.isEmpty()) {
+            try {
+                final DateFormat dateFormat = new SimpleDateFormat("yyyy_MM_dd_HH.mm.ss");
+                final String fileName = dateFormat.format(new Date());
+                final File fileServer = new File(fileName);
+                fileServer.createNewFile();
+                final byte[] bytes = file.getBytes();
+                final BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(fileServer));
+                stream.write(bytes);
+                stream.close();
+                return "You successfully uploaded " + username;
+            } catch (final Exception e) {
+                return "You failed to upload " + e.getMessage();
+            }
+        } else {
+            return "You failed to upload because the file was empty.";
+        }
+    }
+
+    @RequestMapping(value = "/users/upload", method = RequestMethod.POST)
+    public String postMultipart(@RequestParam("file") final MultipartFile file) {
+        if (!file.isEmpty()) {
+            try {
+                final DateFormat dateFormat = new SimpleDateFormat("yyyy_MM_dd_HH.mm.ss");
+                final String fileName = dateFormat.format(new Date());
+                final File fileServer = new File(fileName);
+                fileServer.createNewFile();
+                final byte[] bytes = file.getBytes();
+                final BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(fileServer));
+                stream.write(bytes);
+                stream.close();
+                return "You successfully uploaded ";
+            } catch (final Exception e) {
+                return "You failed to upload " + e.getMessage();
+            }
+        } else {
+            return "You failed to upload because the file was empty.";
+        }
+    }
+}

testing-modules/testing-libraries/src/main/java/com/baeldung/sampleapp/web/dto/Foo.java

@@ -0,0 +1,42 @@
+package com.baeldung.sampleapp.web.dto;
+
+public class Foo {
+    private long id;
+    private String name;
+
+    public Foo() {
+        super();
+    }
+
+    public Foo(final String name) {
+        super();
+
+        this.name = name;
+    }
+
+    public Foo(final long id, final String name) {
+        super();
+
+        this.id = id;
+        this.name = name;
+    }
+
+    // API
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(final long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+}