service.tut.pori.contentanalysis.video.reference

Class BackendService

java.lang.Object

service.tut.pori.contentanalysis.video.reference.BackendService

@HTTPService(name="vcarb")
public class BackendService
extends java.lang.Object

Reference implementation for Back-end APIs

Constructor Summary

Constructors

Constructor and Description
BackendService()

Method Summary

Modifier and Type	Method and Description
void	addTask(InputStreamParameter xml) The request is to be sent in the body of POST method.
Response	queryTaskStatus(LongParameter taskId, DataGroups dataGroups, Limits limits) This method can be used to query the current status of an analysis task from the back-end.
Response	similarVideosById(StringParameter guid, StringParameter analysisType, DataGroups dataGroups, Limits limits, IntegerParameter serviceIds, LongParameter userIdFilters) This method is applicable for analysis back-ends that store the GUID and user information.

Methods inherited from class java.lang.Object

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

Constructor Detail

BackendService

public BackendService()

Method Detail

addTask

@HTTPServiceMethod(name="addTask",
                   acceptedMethods="POST")
public void addTask(@HTTPMethodParameter(name="body",bodyParameter=true)
                                                                                                    InputStreamParameter xml)

The request is to be sent in the body of POST method. The Content-Type header MUST be set to "text/xml". The character set MUST be UTF-8. For example, "Content-Type: text/xml; charset=UTF-8".

Example Query:

POST /rest/vcarb/addTask
Content-Type: text/xml; charset=UTF-8

[HTTP BODY STARTS]

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<taskDetails>
  <backendId>461343645</backendId>
  <taskId>1257414844111897135</taskId>
  <taskType>ANALYSIS</taskType>
  <callbackUri>http://fe.example.org/rest/vcars/taskFinished</callbackUri>
  <taskParameters>
    <analysisTypeList>
      <analysisType>AUDIO</analysisType>
      <analysisType>FACE_DETECTION</analysisType>
      <analysisType>KEYWORD_EXTRACTION</analysisType>
      <analysisType>VISUAL</analysisType>
    </analysisTypeList>
    <sequenceType>FULL</sequenceType>
  </taskParameters>
  <userId>2267127231408991454</userId>
  <mediaList>
    <media>
      <credits>uklEoAVhKOqSbXeOcTLRedKdbPZFiaOJaqXEkYmQvcDxZoDzpFnjEeUKqRvsDkZk</credits>
      <description>baOjoAyPYeeUywVBUaHSlvQEnsGIZagpmrGnodXPyvigZbPoAeoYMfBlWRqrKgSP</description>
      <UID>2cfa211c-18d3-4487-84ec-9c6dd1240558</UID>
      <name>xNwRdECLuRpoosyhCFArriaXIrncqzPqCgIWJlZdUrPUzYlBUuLHezRjIRdFksuj</name>
      <serviceId>1</serviceId>
      <visibility>PUBLIC</visibility>
      <objectList>
        <object>
          <backendId>782223633</backendId>
          <confidence>0.2627646101100918</confidence>
          <mediaObjectId>8623347594533841626</mediaObjectId>
          <mediaType>VIDEO</mediaType>
          <objectId>zsSArsVzsmDLTBdLbpIzSMUPUkHeCZQEnVFBogWBBhvuQwlfojsOASPrHkcZIEWA</objectId>
          <rank>1426648293</rank>
          <serviceId>1</serviceId>
          <status>CANDIDATE</status>
          <objectType>KEYWORD</objectType>
          <value>JYOQrWtkHNJfqLXWMSIIjhkKNIJJmzTeNvlqPYfJJdIelcpcJAUoUgGGnncUCMAo</value>
          <visibility>GROUP</visibility>
          <timeCodeList>
            <timeCode>
              <to>1071.5519149753525</to>
              <from>200.94282516812186</from>
            </timeCode>
          </timeCodeList>
          <userId>2267127231408991454</userId>
        </object>
      </objectList>
      <mediaType>VIDEO</mediaType>
      <userId>2267127231408991454</userId>
      <url>http://fe.example.org/rest/vcarc/r?uid=2cfa211c-18d3-4487-84ec-9c6dd1240558&amp;service_id=1</url>
    </media>
  </mediaList>
</taskDetails>

[HTTP BODY ENDS]

Example Result:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<response method="addTask" service="vcarb">
  <status>OK</status>
</response>

Parameters:

xml - Only the workload data should be in the body. See VideoTaskDetails

queryTaskStatus

@HTTPServiceMethod(name="queryTaskStatus",
                   acceptedMethods="GET")
public Response queryTaskStatus(@HTTPMethodParameter(name="task_id")
                                                                                                                       LongParameter taskId,
                                                                                                                       @HTTPMethodParameter(name="data_groups",required=false)
                                                                                                                       DataGroups dataGroups,
                                                                                                                       @HTTPMethodParameter(name="limits",required=false)
                                                                                                                       Limits limits)

This method can be used to query the current status of an analysis task from the back-end.

Example Query:

GET /rest/vcarb/queryTaskStatus?task_id=1

Example Result:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<response method="queryTaskStatus" service="vcarb">
  <taskResults>
    <backendId>705593560</backendId>
    <message>PTjVdtYmknycWFvsPgRjXFwKTYVitslATQdpwSRLMusGYUNSPFyRSthMKZeZUbtI</message>
    <status>NOT_STARTED</status>
    <taskId>1</taskId>
    <taskType>ANALYSIS</taskType>
    <mediaList>
      <media>
        <UID>c9b82bb6-f89a-4f19-9e03-b74cc585c4f7</UID>
        <serviceId>1</serviceId>
        <objectList>
          <object>
            <backendId>705593560</backendId>
            <confidence>0.12132696537239263</confidence>
            <mediaObjectId>6943864877320266457</mediaObjectId>
            <mediaType>PHOTO</mediaType>
            <objectId>mliqZfDrHcPVVfgvqzegIBLpwwErLIKWUsbgIpvaHmWMlvXwSAfWmgcUOCHFEvmL</objectId>
            <rank>1217735800</rank>
            <serviceId>6</serviceId>
            <status>CANDIDATE</status>
            <objectType>KEYWORD</objectType>
            <value>dRnoUhavOLTUWdAvKEuDfynGghjKGaHKccwRnYdpVorRDquEtqCKbyknThkHxMLV</value>
            <visibility>GROUP</visibility>
            <userId>5097110457765704259</userId>
          </object>
        </objectList>
        <mediaType>VIDEO</mediaType>
        <userId>5097110457765704259</userId>
        <url>http://fe.example.org/rest/vcarc/r?uid=c9b82bb6-f89a-4f19-9e03-b74cc585c4f7&amp;service_id=1</url>
      </media>
    </mediaList>
  </taskResults>
  <status>OK</status>
</response>

Parameters:

taskId -

dataGroups - For supported data groups, see ClientService.retrieveMediaObjects(core.tut.pori.http.parameters.AuthenticationParameter, DataGroups, Limits, core.tut.pori.http.parameters.IntegerParameter, core.tut.pori.http.parameters.StringParameter).

limits - paging limits

Returns:

See PhotoTaskResponse

similarVideosById

@HTTPServiceMethod(name="similarVideosById",
                   acceptedMethods="GET")
public Response similarVideosById(@HTTPMethodParameter(name="uid")
                                                                                                                           StringParameter guid,
                                                                                                                           @HTTPMethodParameter(name="analysis_type",required=false)
                                                                                                                           StringParameter analysisType,
                                                                                                                           @HTTPMethodParameter(name="data_groups",required=false)
                                                                                                                           DataGroups dataGroups,
                                                                                                                           @HTTPMethodParameter(name="limits",required=false)
                                                                                                                           Limits limits,
                                                                                                                           @HTTPMethodParameter(name="service_id",required=false)
                                                                                                                           IntegerParameter serviceIds,
                                                                                                                           @HTTPMethodParameter(name="user_id",required=false)
                                                                                                                           LongParameter userIdFilters)

This method is applicable for analysis back-ends that store the GUID and user information.

Example Query:

GET /rest/vcarb/similarVideosById?uid=1

Example Result:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<response method="similarVideosById" service="vcarb">
  <mediaList>
    <media>
      <UID>06ab1c66-21f2-41c9-8f97-a3115bdae5c7</UID>
      <serviceId>1</serviceId>
      <objectList>
        <object>
          <backendId>551661084</backendId>
          <confidence>0.9429960319038083</confidence>
          <mediaObjectId>3775298163407094994</mediaObjectId>
          <mediaType>PHOTO</mediaType>
          <objectId>SFsPkiTPHxRiWIAxIibSzRIDFRXmkcwVBSKelhVxLRXjcjlGvuEPxzegCituFAov</objectId>
          <rank>937177328</rank>
          <serviceId>1</serviceId>
          <status>USER_REJECTED</status>
          <objectType>KEYWORD</objectType>
          <value>sqykpQtfiFkoukmbFmnCISorbTUrOyLnUbCBKbeWszTOFPYRrOIBivgfaIjoaNjy</value>
          <visibility>GROUP</visibility>
          <userId>7876641804995386672</userId>
        </object>
      </objectList>
      <mediaType>VIDEO</mediaType>
      <userId>7876641804995386672</userId>
      <url>http://fe.example.org/rest/vcarc/r?uid=06ab1c66-21f2-41c9-8f97-a3115bdae5c7&amp;service_id=1</url>
    </media>
  </mediaList>
  <status>OK</status>
</response>

Parameters:

guid - video GUID

analysisType - optional list of analysis types to use for the search operation PhotoParameters.AnalysisType

dataGroups - For supported data groups, see ClientService.retrieveMediaObjects(core.tut.pori.http.parameters.AuthenticationParameter, DataGroups, Limits, core.tut.pori.http.parameters.IntegerParameter, core.tut.pori.http.parameters.StringParameter).

limits - paging limits

serviceIds - serviceIds If given, search is targeted only to the services with the listed ids. For supported service types, see CAContentCore.ServiceType.

userIdFilters - If parameter is missing, search should be targeted only to publicly available photos.

Returns:

See PhotoList