org.eclipse.smila.restapi
Class StateHandler

java.lang.Object
  org.eclipse.smila.http.server.util.ARequestHandler
      org.eclipse.smila.http.server.json.JsonRequestHandler
          org.eclipse.smila.restapi.StateHandler

All Implemented Interfaces:

HttpHandler, RequestHandler

public class StateHandler
extends JsonRequestHandler

Implements the handling of requests to /smila:

 {
   "taskmanager" : {
     "todo" : 0,
    "inprogress" : 0
   },
   "api" : {
     "jobmanager" : "http://localhost:8080/smila/jobmanager/",
     "tasks" : "http://localhost:8080/smila/tasks/",
     "pipelines" : "http://localhost:8080/smila/pipeline/",
     "store" : "http://localhost:8080/smila/store/",
     "crawlers" : "http://localhost:8080/smila/crawlers/",
     "agents" : "http://localhost:8080/smila/agents/"
   }
 }
 

Field Summary

Fields inherited from class org.eclipse.smila.http.server.json.JsonRequestHandler

FACTORY, HEADER_REQUEST_HOST, HTTP_UTILS

Constructor Summary

StateHandler()

Method Summary

protected boolean	isValidMethod(java.lang.String method, java.lang.String requestUri) Checks if the handler allows the HTTP method.
java.lang.Object	process(java.lang.String method, java.lang.String requestUri, Record inputRecord, HttpExchange exchange) process input record and return result object.
void	setTaskManager(TaskManager taskManager) called by DS: set taskmanager to use before activation.
void	unsetTaskManager(TaskManager taskManager) called by DS: remove taskmanager after deactivation.

Methods inherited from class org.eclipse.smila.http.server.json.JsonRequestHandler

getErrorStatus, getRequestHost, getSuccessStatus, getSuccessStatus, handle, process, writeErrorResult, writeResultObject, writeSuccessResult

Methods inherited from class org.eclipse.smila.http.server.util.ARequestHandler

activate, getDynamicUriParts, getRootContextPath, getStaticUriParts, getUriPattern, matches, urlDecode

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StateHandler

public StateHandler()

Method Detail

process

public java.lang.Object process(java.lang.String method,
                                java.lang.String requestUri,
                                Record inputRecord,
                                HttpExchange exchange)

process input record and return result object. Override this method in your handler if you need access to HttpExchange object, e.g. to read http header fields

Overrides:

process in class JsonRequestHandler

Parameters:

method - HTTP method

requestUri - request URI.

inputRecord - input record parsed either from request body, if it has content, or from request URI parameters.

exchange - http exchange object, contains e.g. the http header fields

Returns:

result object, may be null. If this is not a Record, you have to provide a JsonRequestHandler.writeResultObject(OutputStream, Object) method, too.

isValidMethod

protected boolean isValidMethod(java.lang.String method,
                                java.lang.String requestUri)

Checks if the handler allows the HTTP method. GET is currently the only valid method.

Overrides:

isValidMethod in class JsonRequestHandler

Parameters:

method - HTTP method

requestUri - request URI

Returns:

true if the method can be used for the URI, else false.

setTaskManager

public void setTaskManager(TaskManager taskManager)

called by DS: set taskmanager to use before activation.

unsetTaskManager

public void unsetTaskManager(TaskManager taskManager)

called by DS: remove taskmanager after deactivation.