Examples of org.apache.struts2.views.gxp.AbstractGxpResult

org.apache.struts2.components.Anchor
The abstract base class for our Struts 2 GXP result type implementation. It outputs GXP, and pulls GXP parameters from Struts 2's value stack. Implementing classes have to:
1. Implement execute(ActionInvocation), which must instruct the GXP to write itself to the output stream. See {@link GxpResult} for asample implementation.
2. Add a public static final field DEFAULT_PARAM with the value 'gxpName'. Struts 2 needs this to set the name of your template into this object.
If you want to use instantiated GXPs (using the nested {@code Interface}), you can set the use {@code useInstances} parameter to{@code true}:
```
 <result-types> <result-type name="gxp" class="org.apache.struts2.views.gxp.GxpResult"> <param name="useInstances">true</param> </result-type> </result-types> 
```
This means that Struts 2 will attempt to instantiate the {@code Interface}using the {@link com.opensymphony.xwork2.ObjectFactory}. If {@link com.google.webwork.GuiceWebWorkIntegrationModule} is installed, or{@link com.google.webwork.ContainerObjectFactory} is set as the static{@code ObjectFactory} instance, then Guice will be used to instantiate theGXP instance; otherwise, only GXPs with no constructor parameters will work. @author Bob Lee

    assert (body != null);


    try {
      writer.write(body);
    } catch (IOException e) {
      throw new StrutsException("IOError while writing the body: " + e.getMessage(), e);
    }
    if (popComponentStack) {
      popComponentStack();
    }
    return false;

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        + getComponentName()
        + "', field '"
        + field
        + (parameters != null && parameters.containsKey("name") ? "', name '"
            + parameters.get("name") : "") + "': " + errorMsg;
    throw new StrutsException(msg, e);
  }

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      }
      try {
        objectFactory.getClassInstance(actionClass.getName());
      } catch (ClassNotFoundException e) {
        logger.error("Object Factory was unable to load class {}", actionClass.getName());
        throw new StrutsException("Object Factory was unable to load class " + actionClass.getName(),
            e);
      }
      String[] beanNames = beanNameFinder.getBeanNames(actionClass);
      switch (beanNames.length) {
      case 0:

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                if(it.hasNext()) {
                    sb.append("&");
                }
            }
            } catch (UnsupportedEncodingException e) {
                throw new StrutsException("Encoding "+ENCODING+" not found");
            }
        }
        RenderResponse resp = PortletActionContext.getRenderResponse();
        RenderRequest req = PortletActionContext.getRenderRequest();
        return resp.encodeURL(req.getContextPath() + sb.toString());

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                mapping = actionMapper.getMapping(httpRequest, dispatcherUtils.getConfigurationManager());
            }
        }
        
        if (mapping == null) {
            throw new StrutsException("Unable to locate action mapping for request, probably due to " +
                    "an invalid action path: "+actionPath);
        }
        return mapping;
    }

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                }
                if (count-- <= 0) {
                    locks.remove(o);
                    o.notify();


                    throw new StrutsException("Deadlock in session lock");
                }
                o.wait(10000);
            }
            ;
            locks.put(o, invocation);

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        InputStream in = null;
        try {
            in = settingsUrl.openStream();
            settings.load(in);
        } catch (IOException e) {
            throw new StrutsException("Could not load " + name + ".properties:" + e, e);
        } finally {
            if(in != null) {
                try {
                    in.close();
                } catch(IOException io) {

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    public String getBeanName() {
        return "actionerror";
    }


    protected Component getBean(ValueStack stack, HttpServletRequest req, HttpServletResponse res) {
        return new ActionError(stack, req, res);
    }

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    public String getBeanName() {
        return "actionmessage";
    }


    protected Component getBean(ValueStack stack, HttpServletRequest req, HttpServletResponse res) {
        return new ActionMessage(stack, req, res);
    }

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    protected String portletUrlType;
    protected String anchor;
    protected String forceAddSchemeHostAndPort;
    
    public Component getBean(ValueStack stack, HttpServletRequest req, HttpServletResponse res) {
        return new Anchor(stack, req, res);
    }

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