/**
    * Copyright By Grandsoft Company Limited.  
    * 2012-1-13 下午06:21:13
    */
   package gboat2.base.plugin.struts.convention;
   
   import java.util.LinkedHashMap;
   import java.util.Map;
   
  import org.apache.struts2.convention.ConventionsServiceImpl;
  import org.apache.struts2.osgi.DefaultBundleAccessor;
  
  import com.opensymphony.xwork2.config.entities.ActionConfig;
  import com.opensymphony.xwork2.config.entities.PackageConfig;
  import com.opensymphony.xwork2.config.entities.ResultTypeConfig;
  import com.opensymphony.xwork2.inject.Inject;
  import com.opensymphony.xwork2.util.ClassLoaderUtil;
  
  /**
   * 扩展 Struts2 内置的 ConventionsServiceImpl，修复无法从 bundle 中获取 Action 类信息的问题。<br>
   * 使用方法为在 struts.xml 中加入如下配置：<br>
   * <code>
   * &lt;bean name="gboat2"  type="org.apache.struts2.convention.ConventionsService" class="gboat2.base.plugin.struts.GboatConventionsServiceImpl"/&gt;<br>
   * &lt;constant name="struts.convention.conventionsService" value="gboat2" /&gt;
   * </code>
   * @date 2012-1-13
   * @author lysming
   * @since 1.0
   * @see org.apache.struts2.convention.ConventionsServiceImpl
   */
  public class GboatConventionsServiceImpl extends ConventionsServiceImpl {
  	private String resultPath;
  
  	@Inject
  	public GboatConventionsServiceImpl(@Inject("struts.convention.result.path") String resultPath) {
  		super(resultPath);
  		this.resultPath = resultPath;
  	}
  
  	@Override
  	public String determineResultPath(ActionConfig actionConfig) {
  		if (actionConfig == null) {
  			return resultPath;
  		}
  
  		try {
  			Class<?> clazz = null;
  			try {
  				clazz = ClassLoaderUtil.loadClass(actionConfig.getClassName(), this.getClass());
  			} catch (ClassNotFoundException e) {
  				clazz = DefaultBundleAccessor.getInstance().loadClass(actionConfig.getClassName());
  			}
  			return super.determineResultPath(clazz);
  		} catch (ClassNotFoundException e) {
  			throw new RuntimeException("Invalid action class configuration that references an unknown class named [" + actionConfig.getClassName() + "]", e);
  		}
  	}
  
      @Override
      public Map<String, ResultTypeConfig> getResultTypesByExtension(PackageConfig packageConfig) {
          Map<String, ResultTypeConfig> results = packageConfig.getAllResultTypeConfigs();
          Map<String, ResultTypeConfig> resultsByExtension = new LinkedHashMap<String, ResultTypeConfig>();
          resultsByExtension.put("jsp", results.get("dispatcher"));
          resultsByExtension.put("html", results.get("dispatcher"));
          resultsByExtension.put("vm", results.get("velocity"));
          resultsByExtension.put("ftl", results.get("freemarker"));
          return resultsByExtension;
      }
  
  }