package com.aurea.maven.plugins.sonic.sdm;

 import java.io.File;

 import java.util.List;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.MojoFailureException;

 import com.aurea.maven.plugins.sonic.sdm.util.ESBDeploymentModel;

 import com.aurea.maven.plugins.sonic.sdm.util.ESBDeploymentModelBuilder;

 import com.aurea.maven.plugins.util.VelocityRunner;

 /**

  * This Mojo is a first go of the abstraction we want to achieve in the next iteration of 

  * the plugin. It relies on Velocity and it's templating languge to generate the content 

  * of various files needed for deploament. This could be done with the Model.xml, the topology 

  * files and the new AI feature that's required for customers like BA and Disney. 

  * 

  * @goal velocity-generate-model

  */

 public class VelocityGeneratorMojo extends AbstractSdmMojo {

   /**

    * @parameter @required

    */

   private List<String> templateFiles;

   /**

    * @parameter 

    */

   private String propFileName;

   /**

    * @parameter @default-value="ai" @required

    */

   private String aiOutputDirName = "ai";

 /* ------------- */ 

   /**

    * This method is called from the framework to actually perform the work.

    * 

    * @throws MojoExecutionException

    *           MojoExecutionException

    * @throws MojoFailureException

    *           MojoFailureException

    */

   protected void doExecute() throws MojoExecutionException, MojoFailureException {

     ESBDeploymentModelBuilder builder = new ESBDeploymentModelBuilder(project, getLog());

     ESBDeploymentModel model = null;

     try {

       model = builder.getModel();

     } catch (Exception e) {

       throw new MojoExecutionException("Error building Deployment Model", e);

     }

     getLog().info("Executing Velocity ....");

     VelocityRunner runner = VelocityRunner.getInstance(project);

     runner.setOutputDirectory(aiOutputDirName);

     runner.addProperty("env", System.getenv());

     runner.addProperty("system", System.getProperties());

     runner.addProperties("user", propFileName);

     runner.addProperty("model", model);

     for(String tplFile: templateFiles) {

       getLog().debug("Generating Template: " + tplFile);

       try {

         runner.run(tplFile, new File(tplFile).getName());

       } catch (Exception e) {

         throw new MojoExecutionException("Template generation failed.", e);

       }

     }

   }

 }