Package com.microstrategy.web.tasks

Class RetrievePreviewImageTask

java.lang.Object

com.microstrategy.web.tasks.AbstractBaseTask

com.microstrategy.web.tasks.RetrievePreviewImageTask

All Implemented Interfaces:

Task

public class RetrievePreviewImageTask
extends AbstractBaseTask

This Task downloads the preview image of a report or document

Field Summary

Fields inherited from class com.microstrategy.web.tasks.AbstractBaseTask

compressOutput, CONTENT_TYPE_BINARY, CONTENT_TYPE_HTML, CONTENT_TYPE_JSON, CONTENT_TYPE_JSON_ALL, CONTENT_TYPE_JSON_D, CONTENT_TYPE_JSON_P, CONTENT_TYPE_XML, CONTENT_TYPE_XML_ANF, DEFAULT_MAX_WAIT, DEFAULT_POLLING_FREQ, execFlagsParam, INDEFINITE_MAX_WAIT, maxWaitParam, metadata, mPrivileges, msgIDParam, objectIDParam, OTHER_CONTENT_KEY_LAYOUTS, PARAM_NAME_EXEC_FLAGS, PARAM_NAME_MAX_WAIT, PARAM_NAME_MESSAGE_ID, PARAM_NAME_OBJECT_ID, PARAM_NAME_POLLING_FREQ, PARAM_NAME_RESULT_FLAGS, PARAM_NAME_SESSION_ID, PARAM_NAME_SESSION_STATE, PARAM_NAME_STATE_ID, pollingFreqParam, PREFERENCE_DEFAULT_MAX_WAIT_IN_TASK, resultFlagsParam, sessionIDParam, sessionStateParam, stateIDParam

Constructor Summary

Constructors

Constructor	Description
RetrievePreviewImageTask()	Creates a new ImportFileTask object.

Method Summary

Modifier and Type	Method	Description
protected void	checkForRequiredParameters(RequestKeys requestKeys)	Checks whether all required parameters are present or not.
void	processRequest(TaskRequestContext context, MarkupOutput markupOutput)	This method downloads the preview image of a report or document from the Intelligence Server.

Methods inherited from class com.microstrategy.web.tasks.AbstractBaseTask

addExecFlagsParam, addJuilLayouts, addMaxWaitParam, addMaxWaitParam, addMessageIDParam, addObjectIDParam, addParameterMetadata, addParameterMetadata, addParameterMetadata, addPollingFrequencyParam, addPollingFrequencyParam, addResultFlagsParam, addSessionIDParam, addSessionStateParam, addStateIDParam, destroy, getCompressOutput, getID, getMetadata, getPrivileges, getSysDefaultPreferenceValue, init, newRequestContext, processRequest, retrieveUploadedFile, setCompressOutput, setDescription, setID, setMetadata, setPrivileges, validateContentType

Methods inherited from class java.lang.Object

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

Constructor Detail

RetrievePreviewImageTask

public RetrievePreviewImageTask()

Creates a new ImportFileTask object.

Method Detail

processRequest

public void processRequest(TaskRequestContext context,
                           MarkupOutput markupOutput)
                    throws TaskException

This method downloads the preview image of a report or document from the Intelligence Server.

Specified by:

processRequest in interface Task

Overrides:

processRequest in class AbstractBaseTask

Parameters:

context - The TaskRequestContext that contains all information about this Task invocation.

taskOutput - The TaskOutput that contains our response.

Throws:

TaskException - If anything fails along the way. See the individual methods invoked by this method.

See Also:

Task.processRequest(TaskRequestContext, MarkupOutput)

checkForRequiredParameters

protected void checkForRequiredParameters(RequestKeys requestKeys)
                                   throws TaskRequestMalformedException

Description copied from class: AbstractBaseTask

Checks whether all required parameters are present or not.

Overrides:

checkForRequiredParameters in class AbstractBaseTask

Parameters:

requestKeys - The RequestKeys object that contains all parameters.

Throws:

TaskRequestMalformedException - If some required parameters are missing.