Java Doc for LoaderServletComponent.java in  » Science » Cougaar12_4 » org » cougaar » planning » servlet » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Science » Cougaar12_4 » org.cougaar.planning.servlet 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.cougaar.core.servlet.BaseServletComponent
   org.cougaar.planning.servlet.LoaderServletComponent

LoaderServletComponent
public class LoaderServletComponent extends BaseServletComponent (Code)
Servlet that allows the client to add, remove, and check for the existence of Components at both the servlet's agent (eg plugin) or node (eg agent).

The path of the servlet is "/load". This is a bit of a misnomer, since in addition to "add" this servlet also supports "remove" and "contains".

The URL parameters to this servlet are:

  • action=STRING
    Required action for container operation; this should be either "add", "remove", or "contains", where the default is "add".

    Important Note:

    "add" acts as an "ensure-is-loaded"; if the component is already loaded then the action is ignored (success).

    "remove" similarily acts as an "ensure-is-not-loaded", where a remove of a non-loaded component is ignored (success).

    "contains" will only return with a success status code if the component is loaded ("assert-is-loaded"). If the component is not loaded then an error response is returned.

  • target=STRING
    Optional target of where to add this component; this should be either "agent" or "node", where the default is "agent". This must agree with the "insertionPoint".
  • name=STRING
    Optional name of the component; defaults to the classname.
  • insertionPoint=STRING
    Insertion point for the component; the default is:
    Node.AgentManager.Agent.PluginManager.Plugin.
  • classname=STRING
    Name of the component class to load.
    If this parameter is missing then a "usage" HTML page is generated.
  • parameters=STRING1,STRING2,..,STRINGN Optional list of string parameters to pass to the component. Defaults to null.
  • codebase=STRING
    Optional codebase URL for locating the class file(s). The default is to use the node's classpath.

Note the SECURITY issues in loading an arbitrary Component!



Field Summary
protected  AgentContainmentServiceagentContainer
    
protected  MessageAddressagentId
    
protected  MessageAddressnodeId
    
protected  NodeIdentificationServicenodeIdService
    


Method Summary
protected  ServletcreateServlet()
    
protected  StringgetPath()
    
public  voidload()
    
public  voidunload()
    

Field Detail
agentContainer
protected AgentContainmentService agentContainer(Code)



agentId
protected MessageAddress agentId(Code)



nodeId
protected MessageAddress nodeId(Code)



nodeIdService
protected NodeIdentificationService nodeIdService(Code)





Method Detail
createServlet
protected Servlet createServlet()(Code)



getPath
protected String getPath()(Code)



load
public void load()(Code)



unload
public void unload()(Code)



Fields inherited from org.cougaar.core.servlet.BaseServletComponent
protected BindingSite bindingSite(Code)(Java Doc)
protected ServiceBroker serviceBroker(Code)(Java Doc)
protected ServletService servletService(Code)(Java Doc)

Methods inherited from org.cougaar.core.servlet.BaseServletComponent
abstract protected Servlet createServlet()(Code)(Java Doc)
abstract protected String getPath()(Code)(Java Doc)
public void load()(Code)(Java Doc)
public void setBindingSite(BindingSite bindingSite)(Code)(Java Doc)
public void setParameter(Object o)(Code)(Java Doc)
public void setServiceBroker(ServiceBroker sb)(Code)(Java Doc)
public void unload()(Code)(Java Doc)

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