Friday, December 12, 2014

Spring Web: Get current request and generate base URL

Just a simple way to generate application's base URL according to the environment context using current request:


protected static String getBaseEnvLinkURL() {

   String baseEnvLinkURL=null;
   HttpServletRequest currentRequest =
      ((ServletRequestAttributes)RequestContextHolder.
       currentRequestAttributes()).getRequest();
   // lazy about determining protocol but can be done too
   baseEnvLinkURL = "http://" + currentRequest.getLocalName();
   if(currentRequest.getLocalPort() != 80) {
      baseEnvLinkURL += ":" + currentRequest.getLocalPort();
   }
   if(!StringUtils.isEmpty(currentRequest.getContextPath())) {
      baseEnvLinkURL += currentRequest.getContextPath();
   }            
   return baseEnvLinkURL;
}

Tuesday, November 4, 2014

DOS: List files recursively

To list files recursively in Windows you don't need a complex script as I thought. For example to list all .html inside subfolders you can just run simple DOS command:

dir /s/b *.html > results.txt

Wednesday, October 15, 2014

Ant: adding additional JARs to classpath

I was working in a custom ATG module in which I required to extend a core ATG class. When I ran the build ant command I got compile errors because of "cannot find symbol", in other words, my dear reference class was not being recognized. It was missing! In my Eclipse project I got no errors because I had the right library included in the project's classpath.

I started looking on how to add additional JAR files to the classpath, but after digging a little bit more in the compile target referenced in the build.xml:

<target name="build" depends="echo-build-message,clean,compile,jar-classes,jar-configs,copy-to-install" />

I saw how could I add additional classpath entries using the reference id "classpath.additions". In the included common.xml file we had this:


 
<target name="compile">
     <mkdir dir="${java.output.dir}"/>
        <mkdir dir="${java.src.dir}"/>
        <copy todir="${java.output.dir}">
            <fileset dir="${java.src.dir}">
                <include name="**/*.properties" />
                <include name="**/*.xml" />
            </fileset>
        </copy>
     <if>
      <isreference refid="classpath.additions" />
      <then>
       <path id="fullClasspath">
        <path refid="classpath" />
        <path refid="classpath.additions" />
       </path>
      </then>
      <else>
       <path id="fullClasspath">
        <path refid="classpath" />
       </path>
       </else>
     </if>
        
     <echo message="java.src.dir: ${java.src.dir}, java.output.dir: ${java.output.dir}" />
     <javac srcdir="${java.src.dir}" destdir="${java.output.dir}" classpathref="fullClasspath" debug="on" includeAntRuntime="false" />
</target>

So I just added this in the build.xml:
<path id="classpath.additions"> 
  <fileset dir="${dynamo.home}/../REST/lib"><include name="**/*.jar" /></fileset>  
</path> 
This seems like an elegant generic way for configuring classpaths in a multi module environment like ATG.

Tuesday, October 14, 2014

ATG: Nucleus tips

Get current request URI

import atg.servlet.ServletUtil;
//...
ServletUtil.getCurrentRequest().getRequestURI();

Define a collection of components

Java:
    
protected Component [] componentes;

public void setComponents(Component [] components) {
   this.components = components;
}
    
public Component [] getComponents() {
   return components;
}

Properties:
components=\
 /path/to/some/Component,\
        /path/to/another/Component


Tuesday, July 22, 2014

Spring: Integration testing under Spring Boot application context but mocking services


Use @MockBean annotation

DEPRACATED:

So I wanted to create some integration tests for an API application that uses Spring Boot. The thing is that I needed to load the same application context as the real applicationm, because Spring Boot performs a bunch of configurations for you, and these were not being loaded in a StandAlone mode.

But also I didn't want to use real services which depend upon real data. Depending on databases for your tests creates fragile tests.

After researching on the web I found this way:


This is the typical Spring-Boot entry point class.

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;

@EnableAutoConfiguration
@ComponentScan
public class MyApplication {

    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }
}

A base class having the logic to init the application context.

import static org.springframework.test.web.servlet.setup.MockMvcBuilders.webAppContextSetup;
import org.junit.Before;
import org.junit.runner.RunWith;
import org.mockito.MockitoAnnotations;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.web.context.WebApplicationContext;

@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@SpringApplicationConfiguration(classes = MyApplication.class)
public abstract class BaseIntegrationTest {

    protected MockMvc mockMvc;
    
    @Autowired
    protected WebApplicationContext wac;

    @Before
    public void setup() {
       
        MockitoAnnotations.initMocks(this);
        this.mockMvc = webAppContextSetup(wac).build();
    }
}

An implementation class mocking a required service class.
public class FooIntegrationTest extends BaseIntegrationTest {

    @Configuration
    public static class TestConfiguration {
        @Bean
        @Primary
        public FooService fooService() {
            return mock(FooService.class);
        }
    }


    @Autowired
    FooService mockFooService;
}