SentenceAnnotation::SentenceAnnotation(uima::CAS& aCas, size_t begin, size_t end, const TokenAnnotation& firstToken, const TokenAnnotation& lastToken, const ParagraphAnnotation& paragraph)
		{
			FSIndexRepository& indexRep = aCas.getIndexRepository();
			annotation = aCas.createAnnotation(tSentenceAnnotation, begin, end);
			setFirstToken(firstToken);
			setLastToken(lastToken);
			setParagraph(paragraph);
			indexRep.addFS(annotation);
		}
  /**
   * Similar to the annotator's `process` function but trimmed to just
   * handle a specific controller.
   *
   * @param  cas        The current common analysis system.
   * @param  controller The controller name which is also equivalent to the
   *                    mongo db collection's name.
   * @return UIMA error type id - UIMA_ERR_NONE on success.
   */
  uima::TyErrorId processController(
    uima::CAS& cas,
    const std::string& controller
  ) {
    log->logMessage("ControllerAnnotator::processController() begins");

    // Parse MongoDB data into an urdf model.
    MongoUrdf* urdf = new MongoUrdf(host);
    typedef std::vector< std::map<std::string, ModelState> > statesT;
    statesT states = urdf->getControllerStates(database, controller);
    delete urdf;

    // Initialize required indices.
    uima::FSIndexRepository& index = cas.getIndexRepository();
    uima::ANIterator jsIter = cas.getAnnotationIndex(JointStateType).iterator();
    uima::AnnotationFS ci, js;
    std::vector<std::string> names;
    int stamp, begin, end;

    for (statesT::iterator it = states.begin(); it != states.end(); it++) {
      ModelState desired = it->find("desired")->second;
      ModelState actual  = it->find("actual")->second;
      ModelState error   = it->find("error")->second;

      names = desired.getJointNames();
      stamp = desired.time;
      //begin = 0, end = 0;

      /*if (
        jsIter.isValid() && jsIter.peekPrevious().isValid() &&
        stamp < (js = jsIter.get()).getIntValue(jsTimeFtr)
      ) {
        jsIter.moveToNext();
        begin = js.getBeginPosition();
        end = js.getEndPosition();
      }*/

      ci = cas.createAnnotation(ControllerInput, stamp, stamp);
      ci.setStringValue(ciTypeFtr, utils::toUS(controller));
      ci.setIntValue(ciTimeFtr, stamp);
      ci.setFSValue(ciJnsFtr, utils::toStringArrayFS(cas, names));
      ci.setFSValue(ciDesFtr, toJtp(desired.jointStates));
      ci.setFSValue(ciActFtr, toJtp(actual.jointStates));
      ci.setFSValue(ciErrFtr, toJtp(error.jointStates));

      index.addFS(ci);
    }

    log->logMessage("ControllerAnnotator::processController() ends");
    return UIMA_ERR_NONE;
  }
Ejemplo n.º 3
0
    void CASDeserializer::deserializeData(uima::internal::SerializedCAS const & crSerializedCAS,
                                          uima::CAS & rCAS) {
      uima::CAS * baseCAS = rCAS.getBaseCas();
      baseCAS->reset();
      deserializeHeapsAndStringTable( crSerializedCAS, *baseCAS );
      deserializeIndexedFSs(CONST_CAST(vector<SerializedCAS::TyNum>&,crSerializedCAS.iv_vecIndexedFSs), *baseCAS);
//         deserializeDocument(crSerializedCAS, rCAS); // do this last because only here is the document annotation created
    }
 /**
  * Create a movement annotation feature structure given a name, a begin and an
  * end position.
  *
  * @param  name Unicode string giving the feature structure's name feature
  *              value.
  * @param  from Unsigned integer giving the annotation begin position.
  * @param  to   Unsigned integer giving the annotation end position.
  * @return      Movement annotation feature structure.
  */
 uima::AnnotationFS moveAnnotation(
   const icu::UnicodeString& name,
   const std::size_t& from,
   const std::size_t& to
 ) {
   uima::AnnotationFS move = currentCas->createAnnotation(Movement, from, to);
   move.setStringValue(mvNameFtr, name);
   return move;
 }
 /**
  * Create an annoptation of type NegativeMovement with timely and positional
  * begin and end positions.
  *
  * @param  begin    Value for the annotation begin position - time.
  * @param  end      Value for the annotation end position - time.
  * @param  posStart Value for the startPosition feature - position.
  * @param  posEnd   Value for the endPosition feature - position.
  * @return Resulting NegativeMovement annotation feature structure.
  */
 uima::AnnotationFS negMoveAnnotation(
   const uima::UnicodeStringRef& name,
   const std::size_t& begin,
   const std::size_t& end,
   const double& posStart,
   const double& posEnd
 ) {
   uima::AnnotationFS fs;
   fs = currentCas->createAnnotation(NegativeMovement, begin, end);
   fs.setStringValue(pJnFtr, name);
   fs.setDoubleValue(nSpFtr, posStart);
   fs.setDoubleValue(nEpFtr, posEnd);
   return fs;
 }
  /**
   * TaskSpacePosition annotations.
   *
   * @return UIMA error id. UIMA_ERR_NONE on success.
   */
  uima::TyErrorId annotateTaskSpace(
    uima::CAS& cas,
    const urdf::Model& model
  ) {
    uima::FSIndexRepository& index = cas.getIndexRepository();
    uima::FeatureStructure ts;

    boost::shared_ptr<urdf::Link> link;
    std::vector< boost::shared_ptr<urdf::Link> > links;
    model.getLinks(links);

    for (std::size_t i = 0, size = links.size(); i < size; i++) {
      link = links[i];
      ts = cas.createFS(TaskSpacePosition);
      ts.setFSValue(tsXyzFtr,
        utils::toDoubleArrayFS(cas, MongoUrdf::getPosition(link)));
      ts.setFSValue(tsRpyFtr,
        utils::toDoubleArrayFS(cas, MongoUrdf::getRotation(link)));
      index.addFS(ts);
    }

    return UIMA_ERR_NONE;
  }
  /**
   * Create a Joint Trajectory Point Feature Structure from a vector of
   * JointState objects.
   *
   * @param  jointStates Source vector of JointState objects.
   * @return Joint Trajectory Point with all the information from the objects.
   */
  uima::FeatureStructure toJtp(const std::vector<JointState>& jointStates) {
    std::size_t size = jointStates.size(), i = 0;
    std::vector<JointState>::const_iterator it;

    uima::DoubleArrayFS positions     = currentCas->createDoubleArrayFS(size);
    uima::DoubleArrayFS effort        = currentCas->createDoubleArrayFS(size);
    uima::DoubleArrayFS velocities    = currentCas->createDoubleArrayFS(size);
    uima::DoubleArrayFS accelerations = currentCas->createDoubleArrayFS(size);
    for (it = jointStates.begin(); it != jointStates.end(); it++, i++) {
      positions.set(i, it->position);
      effort.set(i, it->effort);
      velocities.set(i, it->velocity);
      accelerations.set(i, it->acceleration);
    }

    uima::FeatureStructure jtp = currentCas->createFS(JointTrajectoryPoint);
    jtp.setFSValue(jtpPosFtr, positions);
    jtp.setFSValue(jtpEffFtr, effort);
    jtp.setFSValue(jtpVelFtr, velocities);
    jtp.setFSValue(jtpAccFtr, accelerations);

    return jtp;
  }
 inline void fromHeapCellTempl( lowlevel::TyHeapCell tyCell, uima::CAS & cas, short & rResult) {
   rResult = cas.getHeap()->getShort(tyCell);
 }
 inline void fromHeapCellTempl( lowlevel::TyHeapCell tyCell, uima::CAS & cas, char & rResult) {
   rResult = cas.getHeap()->getByte(tyCell);
 }
 //new types
 inline void fromHeapCellTempl( lowlevel::TyHeapCell tyCell, uima::CAS & cas,bool & rResult) {
   rResult = cas.getHeap()->getBoolean(tyCell);
 }
 inline void fromHeapCellTempl( lowlevel::TyHeapCell tyCell, uima::CAS & cas, UnicodeStringRef & rResult) {
   rResult = cas.getHeap()->getFSAsString((lowlevel::TyFS)tyCell);
 }
 inline void fromHeapCellTempl( lowlevel::TyHeapCell tyCell, uima::CAS & cas, FeatureStructure & rResult) {
   // if tyCell is an annotation, might create FS from different CAS
   CAS & other = cas.getCasForTyFS(tyCell);
   rResult = uima::internal::FSPromoter::promoteFS((lowlevel::TyFS)tyCell, other);
 }
Ejemplo n.º 13
0
    void CASDeserializer::deserializeIndexedFSs(vector<SerializedCAS::TyNum> & crIndexFSs,
        uima::CAS & rCAS) {

      uima::internal::CASImpl & rCASImpl = uima::internal::CASImpl::promoteCAS(rCAS);
      uima::lowlevel::FSHeap & crHeap = rCASImpl.getHeap();
      uima::lowlevel::IndexRepository * crIndexRep = &rCASImpl.getIndexRepository();
      uima::lowlevel::FSHeap::TyFSHeap const & rTempFSHeap = crHeap.iv_clTemporaryHeap;
      SerializedCAS::TyNum iMaxOffset = rTempFSHeap.getTopOfHeap();

      vector<SerializedCAS::TyNum>::const_iterator cit, loopit;
      vector<SerializedCAS::TyNum> perLoopIndexedFSs;
      cit = crIndexFSs.begin();
      int numViews = *cit++;
      int loopSize = *cit;

      crIndexRep->reset();

      // deserialize base CAS
      if (loopSize > 0) {
        lastSegmentUsed = 0;
        perLoopIndexedFSs.insert(perLoopIndexedFSs.end(), cit+1, cit+1+loopSize);
        cit += loopSize + 1;

        for (loopit = perLoopIndexedFSs.begin(); loopit != perLoopIndexedFSs.end(); ++loopit) {
          assert( *loopit < iMaxOffset );
          crIndexRep->add( *loopit );
        }
      }

      // book keeping for all Sofas
      rCAS.getBaseCas()->iv_sofaCount = 1; // reserve for initial view
      FSIndex fsIdx = crIndexRep->getIndex(CAS::INDEXID_SOFA);
      FSIterator fsIt = fsIdx.iterator();
      while (fsIt.isValid()) {
        SofaFS aSofa = (SofaFS) fsIt.get();
        if ( 0 == aSofa.getSofaID().compare(UnicodeString(CAS::NAME_DEFAULT_SOFA)) ) {
          rCAS.registerInitialSofa();
        } else {
          // only bump sofa count if not initial View
          rCAS.bumpSofaCount();
        }
        rCAS.getView(aSofa)->registerView(aSofa);
        fsIt.moveToNext();
      }

      for (int view = 1; view <= numViews; view++) {

        // Check if sofa's index has anything in it
        loopSize = *cit;
        if (0 == loopSize) {
          cit++;
          continue;
        }

        CAS* tcas = rCAS.getViewBySofaNum(view);
        uima::internal::CASImpl & crTCASImpl = uima::internal::CASImpl::promoteCAS(*tcas);
        crIndexRep = &crTCASImpl.getIndexRepository();
        crIndexRep->reset();

        perLoopIndexedFSs.clear();
        perLoopIndexedFSs.insert(perLoopIndexedFSs.end(), cit+1, cit+1+loopSize);
        cit += loopSize + 1;

        for (loopit = perLoopIndexedFSs.begin(); loopit != perLoopIndexedFSs.end(); ++loopit) {
          assert( *loopit < iMaxOffset );
          crIndexRep->add( *loopit );
        }
        tcas->pickupDocumentAnnotation();
      }

    }
  /**
   * DistanceToLimit annotations.
   *
   * @return UIMA error id. UIMA_ERR_NONE on success.
   */
  uima::TyErrorId annotateLimits(
    uima::CAS& cas,
    const urdf::Model& model
  ) {
    uima::FSIndexRepository& index = cas.getIndexRepository();
    uima::ANIndex jsIndex = cas.getAnnotationIndex(JointState);
    uima::ANIterator jsIter = jsIndex.iterator();

    uima::AnnotationFS js, dst;
    uima::FeatureStructure jtp;

    uima::StringArrayFS jsNames;
    uima::DoubleArrayFS jtpPositions, jtpVelocities, jtpEfforts;

    boost::shared_ptr<const urdf::Joint> joint;
    boost::shared_ptr<urdf::JointLimits> limits;

    std::vector<std::string> dstNames;
    std::vector<double> upperLimits, lowerLimits, velocities, efforts;

    while (jsIter.isValid()) {
      js = jsIter.get();
      jtp = js.getFSValue(jsJtpFtr);

      // Get feature structure value arrays.
      jsNames       = js.getStringArrayFSValue(jsNameFtr);
      jtpPositions  = jtp.getDoubleArrayFSValue(jtpPosFtr);
      jtpVelocities = jtp.getDoubleArrayFSValue(jtpEffFtr);
      jtpEfforts    = jtp.getDoubleArrayFSValue(jtpVelFtr);

      // Clear storage vectors.
      dstNames.clear();
      upperLimits.clear();
      lowerLimits.clear();
      velocities.clear();
      efforts.clear();

      for (std::size_t i = 0; i < jsNames.size(); i++) {
        joint = model.getJoint(jsNames.get(i).asUTF8());
        limits = joint->limits;

        // Limits are only relevant for some joint types.
        if (
          joint->type == urdf::Joint::REVOLUTE ||
          joint->type == urdf::Joint::PRISMATIC
        ) {
          dstNames.push_back(joint->name);
          upperLimits.push_back(limits->upper - jtpPositions.get(i));
          lowerLimits.push_back(limits->lower - jtpPositions.get(i));
          velocities.push_back(limits->velocity - jtpVelocities.get(i));
          efforts.push_back(limits->effort - jtpEfforts.get(i));
        }
      }

      dst = cas.createAnnotation(DistanceToLimit,
                                 js.getBeginPosition(), js.getEndPosition());
      dst.setFSValue(dstNameFtr, utils::toStringArrayFS(cas, dstNames));
      dst.setFSValue(dstUppFtr, utils::toDoubleArrayFS(cas, upperLimits));
      dst.setFSValue(dstLowFtr, utils::toDoubleArrayFS(cas, lowerLimits));
      dst.setFSValue(dstVelFtr, utils::toDoubleArrayFS(cas, velocities));
      dst.setFSValue(dstEffFtr, utils::toDoubleArrayFS(cas, efforts));

      index.addFS(dst);
      jsIter.moveToNext();
    }

    return UIMA_ERR_NONE;
  }
 inline void fromHeapCellTempl( lowlevel::TyHeapCell tyCell, uima::CAS & cas, INT64 & rResult) {
   rResult = cas.getHeap()->getLong(tyCell);
 }
  /**
   * Data processing.
   *
   * @param  cas                 The current common analysis system.
   * @param  resultSpecification The specification of expected results as given
   *                             by the annotator descriptor.
   * @return UIMA error type id - UIMA_ERR_NONE on success.
   */
  uima::TyErrorId process(
    uima::CAS& cas,
    const uima::ResultSpecification& resultSpecification
  ) {
    log->logMessage("MovementAnnotator::process() begins");

    // Save cas for use in other member functions.
    currentCas = &cas;

    // Intialize indices and the index iterator.
    uima::FSIndexRepository& index = cas.getIndexRepository();
    uima::ANIterator jsIter = cas.getAnnotationIndex(JointState).iterator();

    // Initialize reused variables.
    uima::AnnotationFS js = jsIter.get(), move;
    uima::FeatureStructure jtp;
    uima::StringArrayFS names;
    std::size_t size = js.getStringArrayFSValue(jsNameFtr).size();
    uima::ArrayFS moves = cas.createArrayFS(size);
    std::list<uima::DoubleArrayFS> prevPositions;
    std::vector<bool> movingStates(size, false);
    std::vector<double> variances;
    std::size_t id;

    // Init log stream.
    uima::LogStream& logstream = log->getLogStream(uima::LogStream::EnMessage);

    // Loop through joint states.
    while (jsIter.isValid()) {
      js = jsIter.get();
      jtp = js.getFSValue(jsJtpFtr);
      id = js.getBeginPosition();
      names = js.getStringArrayFSValue(jsNameFtr);
      prevPositions.push_back(jtp.getDoubleArrayFSValue(jtpPosFtr));

      // If the list is too long pop the first element.
      if (prevPositions.size() > observedJointStates) {
        prevPositions.pop_front();
      }

      // If the list is too short continue adding the next element.
      if (prevPositions.size() < observedJointStates) {
        continue;
      }

      // Calculate variances in every joint's positions to detect movements.
      variances = calculateVariances(prevPositions);

      // Iterate over the observed variances.
      for (std::size_t i = 0; i < variances.size(); i++) {
        move = static_cast<uima::AnnotationFS>(moves.get(i));
        icu::UnicodeString name = names.get(i).getBuffer();

        if (1 == move.getBeginPosition()) {  // Initial iteration.
          moves.set(i, moveAnnotation(name, id, id));
        } else {  // Consecutive iterations.
          bool moving = (variances[i] >= minVariance);

          if (                                 // Movement state:
            (!movingStates[i] &&  moving) ||   // wasn't + is
             (movingStates[i] && !moving)      // was    + isn't
          ) {
            index.addFS(move);
            moves.set(i, moveAnnotation(name, id, id));

          } else if (                         // Movement state:
            (!movingStates[i] && !moving) ||  // wasn't + isn't
             (movingStates[i] &&  moving)     // was    + is
          ) {
            moves.set(i, moveAnnotation(name, move.getBeginPosition(), id));
          }
        }
      }

      jsIter.moveToNext();
    }

    // Flush log.
    logstream.flush();

    // Add all remaining movements to the index - it might just be that the
    // joints didn't move at all and those are still their initial states.
    for (std::size_t i = 0; i < moves.size(); i++) {
      move = static_cast<uima::AnnotationFS>(moves.get(i));
      index.addFS(move);
    }

    log->logMessage("MovementAnnotator::process() ends");
    return UIMA_ERR_NONE;
  }
Ejemplo n.º 17
0
// for blob deserialization
    void CASDeserializer::deserializeBlob(void * buffer, uima::CAS & rCAS) {
      vector<SerializedCAS::TyNum> iv_vecIndexedFSs;

      // check blob "key" and version
      int* intPtr = (int*) buffer;

      // Check if blob needs byteswap
#if defined(WORDS_BIGENDIAN)
      char key[] = "UIMA";
      char yek[] = "AMIU";
#else
      char key[] = "AMIU";
      char yek[] = "UIMA";
#endif
      if (intPtr[0] == ((int*)yek)[0]) {
        swapBlob(buffer);
      }

      CHECK(intPtr[0] == ((int*)key)[0]);
      CHECK(intPtr[1] == 1);

      // get a heap of references
      uima::internal::CASImpl & crCASImpl = uima::internal::CASImpl::promoteCAS(rCAS);
      uima::lowlevel::FSHeap & crHeap = crCASImpl.getHeap();
      uima::lowlevel::FSHeap::TyFSHeap & tyTempHeap = crHeap.iv_clTemporaryHeap;
      uima::lowlevel::FSHeap::TyStringHeap & tyStringHeap = crHeap.iv_clTemporaryStringHeap;
      uima::lowlevel::FSHeap::TyStringRefHeap & tyStringRefHeap = crHeap.iv_clTemporaryStringRefHeap;
      uima::lowlevel::FSHeap::Ty8BitHeap & ty8BitHeap = crHeap.iv_clTemporary8BitHeap;
      uima::lowlevel::FSHeap::Ty16BitHeap & ty16BitHeap = crHeap.iv_clTemporary16BitHeap;
      uima::lowlevel::FSHeap::Ty64BitHeap & ty64BitHeap = crHeap.iv_clTemporary64BitHeap;



      // deserialize FSHeap
      tyTempHeap.reset();
      size_t uiFSHeapLength = intPtr[2];
      if (uiFSHeapLength > 1) {
        CHECK(intPtr[3] == 0);
        tyTempHeap.increaseHeap(uiFSHeapLength-1);
        memcpy(tyTempHeap.getHeapStart(), intPtr+3, 4*uiFSHeapLength);
      }
      intPtr += 3 + uiFSHeapLength;

      // deserialize StringTable
      tyStringHeap.reset();
      size_t uiStringHeapLength = intPtr[0];
      size_t uialignedStrLen = 2 * ((uiStringHeapLength + 1)/2);
      if (uiStringHeapLength > 1) {
        CHECK(((short*)intPtr)[2] == 0); // check the first short after the length
        tyStringHeap.increaseHeap(uiStringHeapLength-1);
        memcpy(tyStringHeap.getHeapStart(), intPtr+1, 2*uiStringHeapLength);
      }
      intPtr += 1 + uialignedStrLen/2;

      // deserialize StringRef
      tyStringRefHeap.reset();
      size_t uiRefHeapLength = intPtr[0];
      if (uiRefHeapLength > 1) {
        CHECK(intPtr[1] == 0);
        tyStringRefHeap.increaseHeap(uiRefHeapLength-1);
        memcpy(tyStringRefHeap.getHeapStart(), intPtr+1, 4*uiRefHeapLength);
      }
      intPtr += 1 + uiRefHeapLength;

      // create FS indexes
      size_t uiIndexedFSLength = intPtr[0];
      if (uiIndexedFSLength > 0) {
        uima::CAS * baseCAS = rCAS.getBaseCas();
        iv_vecIndexedFSs.resize(uiIndexedFSLength);
        memcpy(&iv_vecIndexedFSs[0], intPtr+1, 4*uiIndexedFSLength);
        deserializeIndexedFSs(iv_vecIndexedFSs, *baseCAS);
      }
      intPtr += 1 + uiIndexedFSLength;

      //8bit heap
      ty8BitHeap.reset();
      size_t ui8BitHeapLength = intPtr[0];
      size_t uialigned8BitHeapLen = 4 * ((ui8BitHeapLength + 3)/4);

      if (ui8BitHeapLength > 1) {
        //CHECK(((char*)intPtr)[1] == 0);
        ty8BitHeap.increaseHeap(ui8BitHeapLength-1);
        memcpy(ty8BitHeap.getHeapStart(), intPtr+1, ui8BitHeapLength);
      }
      intPtr += 1 + uialigned8BitHeapLen/4;

      //16 bit heap
      ty16BitHeap.reset();
      size_t ui16BitHeapLength = intPtr[0];
      size_t uialigned16BitHeapLen = 2 * ((ui16BitHeapLength + 1)/2);
      if (ui16BitHeapLength > 1) {
        //CHECK(((short*)intPtr)[2] == 0);
        ty16BitHeap.increaseHeap(ui16BitHeapLength-1);
        memcpy(ty16BitHeap.getHeapStart(), intPtr+1, 2*ui16BitHeapLength);
      }
      intPtr += 1 + uialigned16BitHeapLen/2;
      //64 bit heap
      ty64BitHeap.reset();
      size_t ui64BitHeapLength = intPtr[0];
      if (ui64BitHeapLength > 0) {
        //CHECK(intPtr[1] == 0);
        ty64BitHeap.increaseHeap(ui64BitHeapLength-1);
        memcpy(ty64BitHeap.getHeapStart(), intPtr+1, 8*ui64BitHeapLength);
      }



    }
 inline void fromHeapCellTempl( lowlevel::TyHeapCell tyCell, uima::CAS & cas, double & rResult) {
   rResult = cas.getHeap()->getDouble(tyCell);
 }
  /**
   * Data processing.
   *
   * @param  cas                 The current common analysis system.
   * @param  resultSpecification The specification of expected results as given
   *                             by the annotator descriptor.
   * @return UIMA error type id - UIMA_ERR_NONE on success.
   */
  uima::TyErrorId process(
    uima::CAS& cas,
    const uima::ResultSpecification& resultSpecification
  ) {
    log->logMessage("MovementDirectionAnnotator::process() begins");

    // Save cas for use in other member functions.
    currentCas = &cas;

    // Intialize the cas index and the movement index iterator.
    uima::FSIndexRepository& index = cas.getIndexRepository();
    uima::ANIndex jsIndex = cas.getAnnotationIndex(JointState);
    uima::ANIterator moveIter = cas.getAnnotationIndex(Movement).iterator();

    // Initialize reused variables.
    uima::AnnotationFS move, js;
    uima::UnicodeStringRef name;
    std::vector<uima::AnnotationFS> jointStates;
    double pos, posDiff, posPrev = 0, posStart = 0;
    std::size_t begin = 0, end;
    int direction;

    std::vector<int> movementStates;

    // Loop through movement annotations.
    while (moveIter.isValid()) {
      move = moveIter.get();
      jointStates = utils::selectCovered(jsIndex, move);
      direction = 0;
      end = move.getEndPosition();
      begin = move.getBeginPosition();

      // Loop through joint states related to this movement.
      for (std::size_t i = 0; i <= jointStates.size(); i++) {
        if (i < jointStates.size()) {
          js = jointStates[i];
          end = js.getEndPosition();
          name = move.getStringValue(mvNameFtr);
          pos = getPosByName(js, name);
          posStart = pos;
          posDiff = pos - posPrev;
        } else {
          // Force direction change to annotate the very last movement dir.
          posDiff = (posDiff >= 0) ? 1 : -1;
        }

        // Act acording to movement direction.
        switch (direction) {
          case POSITIVE:
            if (0 > posDiff) {  // Direction changed, now negative.
              index.addFS(posMoveAnnotation(name, begin, end, posStart, pos));
              direction = NEGATIVE;
              posStart = pos;
              begin = js.getBeginPosition();
            }
            break;
          case NEGATIVE:
            if (0 < posDiff) {  // Direction changed, now positive.
              index.addFS(negMoveAnnotation(name, begin, end, posStart, pos));
              direction = POSITIVE;
              posStart = pos;
              begin = js.getBeginPosition();
            }
            break;
          default:  // Only entered in initial iteration.
            direction = (0 <= posDiff) ? POSITIVE : NEGATIVE;
        }

        posPrev = pos;
      }

      moveIter.moveToNext();
    }

    log->logMessage("MovementDirectionAnnotator::process() ends");
    return UIMA_ERR_NONE;
  }