How to use

HstComponentException

in

org.hippoecm.hst.core.component

@SuppressWarnings("unchecked")
public <T> T getObjectInstance(HstContainerConfig requestContainerConfig, String className) throws HstComponentException {
  try {
    Class<T> clazz = (Class<T>) Class.forName(className);
    return (T) clazz.newInstance();
  } catch (ClassNotFoundException e) {
    throw new HstComponentException("Cannot find the class of " + className);
  } catch (InstantiationException e) {
    throw new HstComponentException("Cannot instantiate the class of " + className);
  } catch (IllegalAccessException e) {
    throw new HstComponentException("Illegal access to the class of " + className);
  }
}

/**
 * Returns all exceptions which have the <CODE>causeType</CODE> and generated by a component of <CODE>componentInfo</CODE>. 
 * 
 * @param pageErrors
 * @param causeType
 * @return
 */
public static Collection<HstComponentException> getExceptionsByCauseType(PageErrors pageErrors, HstComponentInfo componentInfo, Class<? extends Throwable> causeType) {
  List<HstComponentException> exceptions = null;
  
  for (HstComponentException exception : pageErrors.getComponentExceptions(componentInfo)) {
    Throwable cause = exception.getCause();
    
    if (cause != null && causeType.isAssignableFrom(cause.getClass())) {
      if (exceptions == null) {
        exceptions = new ArrayList<HstComponentException>();
      }
      
      exceptions.add(exception);
    }
  }
  
  if (exceptions == null) {
    exceptions = Collections.emptyList();
  }
  
  return exceptions;
}

    log.warn("Component exception caught: " + e.toString(), e);
  } else if (log.isWarnEnabled()) {
    log.warn("Component exception caught: {}", e.toString());
    throw new HstComponentException(e);
  window.addComponentExcpetion(new HstComponentException(e));
window.addComponentExcpetion(new HstComponentException("The component is not available."));

protected void logWarningsForEachComponentExceptions(PageErrors pageErrors) {
  for (HstComponentInfo componentInfo : pageErrors.getComponentInfos()) {
    for (HstComponentException componentException : pageErrors.getComponentExceptions(componentInfo)) {
      if (log.isDebugEnabled()) {
        log.warn("Component exception found on " + componentInfo.getComponentClassName(), componentException);
      } else if (log.isWarnEnabled()) {
        log.warn("Component exception found on {}. ", componentInfo.getComponentClassName(), componentException.toString());
      }
    }
  }
}

protected void handleInvalidScope(final HstRequest request, final HstResponse response) {
  // TODO determine what to do with invalid scope
  response.setStatus(HttpServletResponse.SC_NOT_FOUND);
  if (log.isDebugEnabled()) {
    throw new HstComponentException("EssentialsListComponent needs a valid scope to display documents");
  }
}

    log.warn("Component exception caught on window " + window.getName() + " with component " + component.getClass().getName() + ": " + e.toString(), e);
  } else if (log.isWarnEnabled()) {
    log.warn("Component exception caught on window " + window.getName() + " with component " + component.getClass().getName() + ": {}", e.toString());
    throw new HstComponentException(e);
  window.addComponentExcpetion(new HstComponentException(e));
window.addComponentExcpetion(new HstComponentException("The component is not available."));

/**
 * Returns all exceptions which have the <CODE>causeType</CODE>.
 * 
 * @param pageErrors
 * @param causeType
 * @return
 */
public static Collection<HstComponentException> getExceptionsByCauseType(PageErrors pageErrors, Class<? extends Throwable> causeType) {
  List<HstComponentException> exceptions = null;
  
  for (HstComponentException exception : pageErrors.getAllComponentExceptions()) {
    Throwable cause = exception.getCause();
    
    if (cause != null && causeType.isAssignableFrom(cause.getClass())) {
      if (exceptions == null) {
        exceptions = new ArrayList<HstComponentException>();
      }
      
      exceptions.add(exception);
    }
  }
  
  if (exceptions == null) {
    exceptions = Collections.emptyList();
  }
  
  return exceptions;
}

protected BeanFactory getContextBeanFactory(final ServletContext servletContext, final String [] contextNames) {
  BeanFactory beanFactory = null;
  String contextName = null;
  try {
    int beginIndex;
    if (contextNames.length > 0 && StringUtils.startsWith(contextNames[0], FrameworkServlet.SERVLET_CONTEXT_PREFIX)) {
      beanFactory = WebApplicationContextUtils.getWebApplicationContext(servletContext, contextNames[0]);
      beginIndex = 1;
    } else {
      beanFactory = WebApplicationContextUtils.getWebApplicationContext(servletContext);
      beginIndex = 0;
    }
    if (contextNames != null) {
      for (int i = beginIndex; i < contextNames.length; i++) {
        contextName = contextNames[i];
        beanFactory = (BeanFactory) beanFactory.getBean(contextName);
      }
    }
  } catch (NoSuchBeanDefinitionException e) {
    throw new HstComponentException("There's no beanFactory definition with the specified name: " + contextName, e);
  } catch (BeansException e) {
    throw new HstComponentException("The beanFactory cannot be obtained: " + contextName, e);
  } catch (ClassCastException e) {
    throw new HstComponentException("The bean is not an instance of beanFactory: " + contextName, e);
  } catch (Exception e) {
    throw new HstComponentException("The beanFactory cannot be obtained: " + contextName, e);
  }
  return beanFactory;
}

    log.warn("Component exception caught on window " + window.getName() + " with component " + component.getClass().getName() + ": " + e.toString(), e);
  } else if (log.isWarnEnabled()) {
    log.warn("Component exception caught on window " + window.getName() + " with component " + component.getClass().getName() + ": {}", e.toString());
    throw new HstComponentException(e);
  window.addComponentExcpetion(new HstComponentException(e));
window.addComponentExcpetion(new HstComponentException("The component is not available."));

Throwable cause = exception.getCause();

@SuppressWarnings("unchecked")
public <T> T getObjectInstance(HstContainerConfig requestContainerConfig, String className) throws HstComponentException {
  T object = null;
  
  ClassLoader containerClassloader = requestContainerConfig.getContextClassLoader();
  ClassLoader currentClassloader = Thread.currentThread().getContextClassLoader();
  try {
    if (containerClassloader != currentClassloader) {
      Thread.currentThread().setContextClassLoader(containerClassloader);
    }
    
    Class<T> clazz = (Class<T>) containerClassloader.loadClass(className);
    object = (T) clazz.newInstance();
  } catch (ClassNotFoundException e) {
    throw new HstComponentException("Cannot find the class of " + className);
  } catch (InstantiationException e) {
    throw new HstComponentException("Cannot instantiate the class of " + className);
  } catch (IllegalAccessException e) {
    throw new HstComponentException("Illegal access to the class of " + className);
  } finally {
    if (containerClassloader != currentClassloader) {
      Thread.currentThread().setContextClassLoader(currentClassloader);
    }                
  }
  
  return object;
}

  log.warn("Component exception caught on window " + window.getName() + " with component " + component.getClass().getName() + ": " + e.toString(), e);
} else if (log.isWarnEnabled()) {
  log.warn("Component exception caught on window " + window.getName() + " with component " + component.getClass().getName() + ": {}", e.toString());
  throw new HstComponentException(e);
window.addComponentExcpetion(new HstComponentException(e));

protected void doDispatch(String dispatchPath, HstRequest request, HstResponse response) throws HstComponentException {
  if (dispatchPath != null) {
    try {
      servletContext.getRequestDispatcher(dispatchPath).include(request, response);
    } catch (ServletException e) {
      throw new HstComponentException(e);
    } catch (IOException e) {
      throw new HstComponentException(e);
    }
  } else {
    if (log.isDebugEnabled()) {
      log.debug("The dispatch path is null. The lifecycle phase is {} and the dispatch lifecycle phase is {}", 
          request.getLifecyclePhase(), 
          request.getAttribute(LIFECYCLE_PHASE_ATTRIBUTE));
    }
  }
}

  log.warn("Component exception caught on window " + window.getName() + " with component " + component.getClass().getName() + ": " + e.toString(), e);
} else if (log.isWarnEnabled()) {
  log.warn("Component exception caught on window " + window.getName() + " with component " + component.getClass().getName() + ": {}", e.toString());
  throw new HstComponentException(e);
window.addComponentExcpetion(new HstComponentException(e));

public ObjectBeanManager getObjectBeanManager(HstRequest request) {
  try {
    HstRequestContext requestContext = request.getRequestContext();
    return new ObjectBeanManagerImpl(requestContext.getSession(), this.objectConverter);
  } catch (UnsupportedRepositoryOperationException e) {
    throw new HstComponentException(e);
  } catch (RepositoryException e) {
    throw new HstComponentException(e);
  }
}

protected void doDispatch(String dispatchPath, HstRequest request, HstResponse response) throws HstComponentException {
  if (dispatchPath != null) {
    try {
      getServletContext().getRequestDispatcher(dispatchPath).include(request, response);
    } catch (ServletException e) {
      throw new HstComponentException(e);
    } catch (IOException e) {
      throw new HstComponentException(e);
    }
  } else {
    if (log.isDebugEnabled()) {
      log.debug("The dispatch path is null. The lifecycle phase is {} and the dispatch lifecycle phase is {}", 
          request.getLifecyclePhase(), 
          request.getAttribute(LIFECYCLE_PHASE_ATTRIBUTE));
    }
  }
}

public String toString() {
  HstContainerURL containerURL = this.urlProvider.createURL(this.baseContainerURL, this);
  containerURL.setResourceId(getResourceID());
  
  try {
    return this.urlProvider.toURLString(containerURL, requestContext);
  } catch (UnsupportedEncodingException e) {
    throw new HstComponentException(e);
  } catch (ContainerException e) {
    throw new HstComponentException(e);
  }
}

public String toString() {
  HstContainerURL containerURL = this.urlProvider.createURL(this.baseContainerURL, this);
  containerURL.setResourceId(getResourceID());
  
  try {
    return this.urlProvider.toURLString(containerURL, requestContext, explicitContextPath);
  } catch (UnsupportedEncodingException e) {
    throw new HstComponentException(e);
  } catch (ContainerException e) {
    throw new HstComponentException(e);
  }
}

throw new HstComponentException("The name of delegated spring bean is null.");
  throw new HstComponentException("There's no beanFactory definition with the specified name: " + contextName, e);
} catch (BeansException e) {
  throw new HstComponentException("The beanFactory cannot be obtained: " + contextName, e);
} catch (ClassCastException e) {
  throw new HstComponentException("The bean is not an instance of beanFactory: " + contextName, e);
  throw new HstComponentException("Cannot find the root web application context or client component manager.");
} else if (beanFactory != null && componentManager == null) {
  throw new HstComponentException("Cannot find delegated spring HstComponent bean from the web application context: " + beanName);
} else if (beanFactory == null && componentManager != null) {
  throw new HstComponentException("Cannot find delegated spring HstComponent bean from the client component manager: " + beanName);
} else {
  throw new HstComponentException("Cannot find delegated spring HstComponent bean from either the web application context or the client component manager: " + beanName);

public Session getSession() throws LoginException, RepositoryException {
  if (this.session == null) {
    this.session = this.repository.login(contextCredentialsProvider.getDefaultCredentials(this));
  } else if (!this.session.isLive()) {
    throw new HstComponentException("Invalid session.");
  }
  
  return this.session;
}