/**
    * 
    */
   package org.kuali.student.common.mojo;
   
   import java.util.ArrayList;
   import java.util.Collection;
   import java.util.LinkedHashSet;
   import java.util.List;
  import java.util.Set;
  
  import org.apache.maven.plugin.AbstractMojo;
  import org.apache.maven.project.MavenProject;
  import org.kuali.student.contract.model.ServiceContractModel;
  import org.kuali.student.contract.model.impl.ServiceContractModelCache;
  import org.kuali.student.contract.model.impl.ServiceContractModelQDoxLoader;
  import org.kuali.student.contract.model.validation.ServiceContractModelValidator;
  
  /**
   * 
   * The basic Kuali Student Mojo that defines things like the source lookup path.
   * 
   * @author ocleirig
   * 
   */
  public abstract class AbstractKSMojo extends AbstractMojo {
  
  	/**
  	 * @parameter
  	 **/
  	private List<String> sourceDirs;
  
  	public AbstractKSMojo() {
  		super();
  	}
  
  	public List<String> getSourceDirs() {
  		return sourceDirs;
  	}
  
  	public void setSourceDirs(List<String> sourceDirs) {
  		this.sourceDirs = sourceDirs;
  	}
  
  	protected final ServiceContractModel getModel() {
  
  		Set<String> modelSourceDirectories = new LinkedHashSet<String>();
  
  		MavenProject project = (MavenProject) getPluginContext().get("project");
  		/*
  		 * Default to the source directory that the plugin is run from.
  		 */
  
  		if (sourceDirs == null) {
  			modelSourceDirectories.add(project.getBuild().getSourceDirectory());
  		} else {
  				modelSourceDirectories.addAll(sourceDirs);
  		}
  		if (modelSourceDirectories.size() == 0)
  			throw new RuntimeException("No Source Directories are defined");
  
  		ServiceContractModel instance = new ServiceContractModelQDoxLoader(
  				new ArrayList<String>(modelSourceDirectories));
  		return new ServiceContractModelCache(instance);
  	}
  
  	protected final boolean validate(ServiceContractModel model) {
  		Collection<String> errors = new ServiceContractModelValidator(model)
  				.validate();
  		if (errors.size() > 0) {
  
  			StringBuilder buf = new StringBuilder();
  			buf.append(errors.size()).append(
  					" errors found while validating the data.");
  			int cnt = 0;
  			for (String msg : errors) {
  				cnt++;
  				buf.append("\n");
  				buf.append("*error*").append(cnt).append(":").append(msg);
  			}
  
  			buf.append(errors.size()).append(
  					" errors found while validating the data.");
  			return false;
  		}
  		return true;
  	}
  
  }