Package org.apache.tomcat.core

Examples of org.apache.tomcat.core.Constants$Context$Attribute


     * </ul>
     */
    public static void execute(final String uri, final Evaluator evaluator) {
        try {
            String documentURI = getCanonicalURI(uri);
            Context rootCtx = evaluator.newContext(null);
            Tracer trc = new Tracer();
            SCXML doc = SCXMLReader.read(new URL(documentURI));
            if (doc == null) {
                System.err.println("The SCXML document " + uri
                        + " can not be parsed!");
                System.exit(-1);
            }
            System.out.println(SCXMLWriter.write(doc));
            SCXMLExecutor exec = new SCXMLExecutor(evaluator, null, trc);
            EventDispatcher ed = new SimpleScheduler(exec);
            exec.setEventdispatcher(ed);
            exec.setStateMachine(doc);
            exec.addListener(doc, trc);
            exec.registerInvokerClass("scxml", SimpleSCXMLInvoker.class);
            exec.setRootContext(rootCtx);
            exec.go();
            BufferedReader br = new BufferedReader(new
                InputStreamReader(System.in));
            String event;
            while ((event = br.readLine()) != null) {
                event = event.trim();
                if (event.equalsIgnoreCase("help") || event.equals("?")) {
                    System.out.println("Enter a space-separated list of "
                        + "events");
                    System.out.println("To populate a variable in the "
                        + "current context, type \"name=value\"");
                    System.out.println("To quit, enter \"quit\"");
                    System.out.println("To reset state machine, enter "
                        + "\"reset\"");
                } else if (event.equalsIgnoreCase("quit")) {
                    break;
                } else if (event.equalsIgnoreCase("reset")) {
                    exec.reset();
                } else if (event.indexOf('=') != -1) {
                    int marker = event.indexOf('=');
                    String name = event.substring(0, marker);
                    String value = event.substring(marker + 1);
                    rootCtx.setLocal(name, value);
                    System.out.println("Set variable " + name + " to "
                        + value);
                } else if (event == null || event.trim().length() == 0
                           || event.equalsIgnoreCase("null")) {
                    TriggerEvent[] evts = {new TriggerEvent(null,
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        else if (!transition.isNoEventsTransition()) {
            return false;
        }
        if (transition.getCond() != null) {
            Boolean result = Boolean.FALSE;
            Context context = exctx.getScInstance().getContext(transition.getParent());
            context.setLocal(Context.NAMESPACES_KEY, transition.getNamespaces());
            try {
                if ((result = exctx.getEvaluator().evalCond(context, transition.getCond())) == null) {
                    result = Boolean.FALSE;
                    if (exctx.getAppLog().isDebugEnabled()) {
                        exctx.getAppLog().debug("Treating as false because the cond expression was evaluated as null: '"
                                + transition.getCond() + "'");
                    }
                }
            }
            catch (SCXMLExpressionException e) {
                exctx.getInternalIOProcessor().addEvent(new TriggerEvent(TriggerEvent.ERROR_EXECUTION, TriggerEvent.ERROR_EVENT));
                exctx.getErrorReporter().onError(ErrorConstants.EXPRESSION_ERROR, "Treating as false due to error: "
                        + e.getMessage(), transition);
            }
            finally {
                context.setLocal(Context.NAMESPACES_KEY, null);
            }
            return result;
        }
        return true;
    }
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     * @param scInstance the state machine instance holding the system context
     * @param event The event being stored
     * @param internal Flag indicating the event was received internally or externally
     */
    public void setSystemEventVariable(final SCInstance scInstance, final TriggerEvent event, boolean internal) {
        Context systemContext = scInstance.getSystemContext();
        EventVariable eventVar = null;
        if (event != null) {
            String eventType = internal ? EventVariable.TYPE_INTERNAL : EventVariable.TYPE_EXTERNAL;

            final int triggerEventType = event.getType();
            if (triggerEventType == TriggerEvent.ERROR_EVENT || triggerEventType == TriggerEvent.CHANGE_EVENT) {
                eventType = EventVariable.TYPE_PLATFORM;
            }

            // TODO: determine sendid, origin, originType and invokeid based on context later.
            eventVar = new EventVariable(event.getName(), eventType, null, null, null, null, event.getPayload());
        }
        systemContext.setLocal(SCXMLSystemContext.EVENT_KEY, eventVar);
    }
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        Evaluator eval = exctx.getEvaluator();
        for (TransitionalState ts : statesToInvoke) {
            if (ts.getInvokes().isEmpty()) {
                continue;
            }
            Context context = scInstance.getContext(ts);
            for (Invoke i : ts.getInvokes()) {
                String src = i.getSrc();
                if (src == null) {
                    String srcexpr = i.getSrcexpr();
                    Object srcObj;
                    try {
                        context.setLocal(Context.NAMESPACES_KEY, i.getNamespaces());
                        srcObj = eval.eval(context, srcexpr);
                        context.setLocal(Context.NAMESPACES_KEY, null);
                        src = String.valueOf(srcObj);
                    } catch (SCXMLExpressionException see) {
                        exctx.getInternalIOProcessor().addEvent(new TriggerEvent(TriggerEvent.ERROR_EXECUTION, TriggerEvent.ERROR_EVENT));
                        exctx.getErrorReporter().onError(ErrorConstants.EXPRESSION_ERROR, see.getMessage(), i);
                    }
                }
                String source = src;
                PathResolver pr = i.getPathResolver();
                if (pr != null) {
                    source = i.getPathResolver().resolvePath(src);
                }
                Invoker inv;
                try {
                    inv = exctx.newInvoker(i.getType());
                } catch (InvokerException ie) {
                    exctx.getInternalIOProcessor().addEvent(new TriggerEvent("failed.invoke."+ts.getId(), TriggerEvent.ERROR_EVENT));
                    continue;
                }
                List<Param> params = i.params();
                Map<String, Object> args = new HashMap<String, Object>();
                for (Param p : params) {
                    String argExpr = p.getExpr();
                    Object argValue = null;
                    context.setLocal(Context.NAMESPACES_KEY, p.getNamespaces());
                    // Do we have an "expr" attribute?
                    if (argExpr != null && argExpr.trim().length() > 0) {
                        try {
                            argValue = eval.eval(context, argExpr);
                        } catch (SCXMLExpressionException see) {
                            exctx.getInternalIOProcessor().addEvent(new TriggerEvent(TriggerEvent.ERROR_EXECUTION, TriggerEvent.ERROR_EVENT));
                            exctx.getErrorReporter().onError(ErrorConstants.EXPRESSION_ERROR, see.getMessage(), i);
                        }
                    } else {
                        // No. Does value of "name" attribute refer to a valid
                        // location in the data model?
                        try {
                            argValue = eval.evalLocation(context, p.getName());
                            if (argValue == null) {
                                // Generate error, 4.3.1 in WD-scxml-20080516
                                exctx.getInternalIOProcessor().addEvent(new TriggerEvent(ts.getId() + ERR_ILLEGAL_ALLOC, TriggerEvent.ERROR_EVENT));
                            }
                        } catch (SCXMLExpressionException see) {
                            exctx.getInternalIOProcessor().addEvent(new TriggerEvent(TriggerEvent.ERROR_EXECUTION, TriggerEvent.ERROR_EVENT));
                            exctx.getErrorReporter().onError(ErrorConstants.EXPRESSION_ERROR, see.getMessage(), i);
                        }
                    }
                    context.setLocal(Context.NAMESPACES_KEY, null);
                    args.put(p.getName(), argValue);
                }
                String invokeId = exctx.setInvoker(i, inv);
                inv.setInvokeId(invokeId);
                inv.setParentIOProcessor(exctx.getExternalIOProcessor());
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    this.handleQCInformation();

    this.ncFile.addAttribute( null, qcFlagsAtt );

    // Add some general metadata in global attributes.
    this.ncFile.addAttribute( null, new Attribute( "title",
                                                   new StringBuffer("NGDC archived ")
                                                   .append( datasetIdAtt.getStringValue())
                                                   .append( " data with start time ")
                                                   .append( startDateAtt.getStringValue())
                                                   .toString()));
    this.ncFile.addAttribute( null, new Attribute( "Convention", _Coordinate.Convention));

    // Add some THREDDS specific metadata in global attributes.
    this.ncFile.addAttribute( null, new Attribute( "thredds_creator", "DOD/USAF/SMC > Space and Missile Systems Center (SMC), U.S. Air Force, U.S. Department of Defense"));
    this.ncFile.addAttribute( null, new Attribute( "thredds_contributor", "DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce"));
    this.ncFile.addAttribute( null, new Attribute( "thredds_contributor_role", "archive"));
    this.ncFile.addAttribute( null, new Attribute( "thredds_publisher", "DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce"));
    this.ncFile.addAttribute( null, new Attribute( "thredds_publisher_url", "http://dmsp.ngdc.noaa.gov/"));
    this.ncFile.addAttribute( null, new Attribute( "thredds_publisher_email", "ngdc.dmsp@noaa.gov"));
    this.ncFile.addAttribute( null, new Attribute( "thredds_summary",
                                                   new StringBuffer("This dataset contains data from the DMSP ").append( spacecraftIdAtt.getStringValue())
                                                   .append( " satellite OLS instrument and includes both visible smooth and thermal smooth imagery with 2.7km resolution.")
                                                   .append( " The start time for this data is ").append( startDateAtt.getStringValue())
                                                   .append( " and the northerly equatorial crossing longitude is ").append( startLongitudeAtt.getNumericValue())
                                                   .append( ".  The DMSP satellite is a polar-orbiting satellite crossing the equator, depending on the satellite, at either dawn/dusk or noon/midnight.")
                                                   .append( " This data is in the NOAA/NGDC DMSP archive format.")
                                                   .toString()));
    this.ncFile.addAttribute( null, new Attribute( "thredds_history", ""));
    this.ncFile.addAttribute( null, new Attribute( "thredds_timeCoverage_start", startDateAtt.getStringValue()));
    this.ncFile.addAttribute( null, new Attribute( "thredds_timeCoverage_end", endDateAtt.getStringValue()));
    this.ncFile.addAttribute( null, new Attribute( "thredds_geospatialCoverage",
                                                   new StringBuffer("Polar orbit with northerly equatorial crossing at longitude ")
                                                   .append( ascendingNodeAtt.getNumericValue()).append( ".")
                                                   .toString()));

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   * @throws IOException if any problems reading the file (or validating the file).
   */
  private void handleFileInformation()
          throws IOException
  {
    fileIdAtt = new Attribute( this.fileIdAttName,
                               (String) headerInfo.get( HeaderInfoTitle.FILE_ID.toString() ) );
    datasetIdAtt = new Attribute( this.datasetIdAttName,
                                  (String) headerInfo.get( HeaderInfoTitle.DATA_SET_ID.toString() ) );
    recordSizeInBytes = Integer.parseInt( (String) headerInfo.get( HeaderInfoTitle.RECORD_BYTES.toString() ) );
    numRecords = Integer.parseInt( (String) headerInfo.get( HeaderInfoTitle.NUM_RECORDS.toString() ) );
    numHeaderRecords = Integer.parseInt( (String) headerInfo.get( HeaderInfoTitle.NUM_HEADER_RECORDS.toString() ) );
    numDataRecords = Integer.parseInt( (String) headerInfo.get( HeaderInfoTitle.NUM_DATA_RECORDS.toString() ) );
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   * @throws IOException if any problems reading the file (or validating the file).
   */
  private void handleProcessingInformation()
          throws IOException
  {
    suborbitHistoryAtt = new Attribute( this.suborbitHistoryAttName,
                                        (String) headerInfo.get( HeaderInfoTitle.SUBORBIT_HISTORY.toString() ) );
    processingSystemAtt = new Attribute( this.processingSystemAttName,
                                         (String) headerInfo.get( HeaderInfoTitle.PROCESSING_SYSTEM.toString() ) );
    String processingDateString = (String) headerInfo.get( HeaderInfoTitle.PROCESSING_DATE.toString() );
    try
    {
      processingDate = DateFormatHandler.ALT_DATE_TIME.getDateFromDateTimeString( processingDateString );
    }
    catch ( ParseException e )
    {
      throw new IOException( "Invalid DMSP file: processing date string <" + processingDateString + "> not parseable: " + e.getMessage() );
    }
    processingDateAtt = new Attribute(
            this.processingDateAttName,
            DateFormatHandler.ISO_DATE_TIME.getDateTimeStringFromDate( processingDate ) );
  }
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  /**
   * Parse the satellite information from the header.
   */
  private void handleSatelliteInformation()
  {
    spacecraftIdAtt = new Attribute(
            this.spacecraftIdAttName,
            (String) headerInfo.get( HeaderInfoTitle.SPACECRAFT_ID.toString() ) );
    noradIdAtt = new Attribute(
            this.noradIdAttName,
            (String) headerInfo.get( HeaderInfoTitle.NORAD_ID.toString() ) );
  }
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    }
    catch ( ParseException e )
    {
      throw new IOException( "Invalid DMSP file: start date/time string <" + startDateTimeUTC + "> not parseable: " + e.getMessage() );
    }
    this.startDateAtt = new Attribute( this.startDateAttName,
                                       DateFormatHandler.ISO_DATE_TIME.getDateTimeStringFromDate( this.startDate));

    // Read the end date UTC information.
    time = (String) headerInfo.getHeaderInfoTitle.END_TIME_UTC.toString());
    String endDateTimeUTC = (String) headerInfo.getHeaderInfoTitle.END_DATE_UTC.toString())
                            + "T" + time.substring( 0, time.indexOf( '.')+4)
                            + "GMT";
    try
    {
      this.endDate = DateFormatHandler.ISO_DATE_TIME.getDateFromDateTimeString( endDateTimeUTC);
    }
    catch ( ParseException e )
    {
      throw new IOException( "Invalid DMSP file: end date/time string <" + endDateTimeUTC + "> not parseable: " + e.getMessage() );
    }
    this.endDateAtt = new Attribute( this.endDateAttName,
                                       DateFormatHandler.ISO_DATE_TIME.getDateTimeStringFromDate( this.endDate));

    // Read the local start/end date/time
    this.startDateLocalAtt = new Attribute( this.startDateLocalAttName,
                                            (String) HeaderInfoTitle.START_DATE_LOCAL.toString());
    this.startTimeLocalAtt = new Attribute( this.startTimeLocalAttName,
                                            (String) HeaderInfoTitle.START_TIME_LOCAL.toString());

    // Read the start latitude/longitude information.
    String startLatLon = (String) headerInfo.getHeaderInfoTitle.START_LAT_LON.toString());
    String[] latLon = startLatLon.split( " ");
    Double lat, lon;
    if ( latLon.length != 2) throw new IOException( "Invalid DMSP file: start lat/lon <" + startLatLon + "> invalid.");
    try
    {
      lat = Double.valueOf( latLon[0]);
      lon = Double.valueOf( latLon[1]);
    }
    catch ( NumberFormatException e )
    {
      throw new IOException( "Invalid DMSP file: start lat/lon string <" + startLatLon + "> not parseable: " + e.getMessage() );
    }
    this.startLatitudeAtt = new Attribute( this.startLatitudeAttName, lat);
    this.startLongitudeAtt = new Attribute( this.startLongitudeAttName, lon);

    // Read the end latitude/longitude information.
    String endLatLon = (String) headerInfo.getHeaderInfoTitle.END_LAT_LON.toString());
    latLon = endLatLon.split( " ");
    if ( latLon.length != 2) throw new IOException( "Invalid DMSP file: end lat/lon <" + endLatLon + "> invalid.");
    try
    {
      lat = Double.valueOf( latLon[0]);
      lon = Double.valueOf( latLon[1]);
    }
    catch ( NumberFormatException e )
    {
      throw new IOException( "Invalid DMSP file: end lat/lon string <" + endLatLon + "> not parseable: " + e.getMessage() );
    }
    this.endLatitudeAtt = new Attribute( this.endLatitudeAttName, lat);
    this.endLongitudeAtt = new Attribute( this.endLongitudeAttName, lon);

    // Read the start sub-solar coordinates.
    this.startSubsolarCoordsAtt = new Attribute( this.startSubsolarCoordsAttName,
                                                 (String) headerInfo.get( HeaderInfoTitle.START_SUBSOLAR_COORD.toString()));

    // Read the end sub-solar coordinates.
    this.endSubsolarCoordsAtt = new Attribute( this.endSubsolarCoordsAttName,
                                               (String) headerInfo.get( HeaderInfoTitle.END_SUBSOLAR_COORD.toString()));

    // Read the start lunar coordinates.
    this.startLunarCoordsAtt = new Attribute( this.startLunarCoordsAttName,
                                              (String) headerInfo.get( HeaderInfoTitle.START_LUNAR_COORD.toString()));

    // Read the end lunar coordinates.
    this.endLunarCoordsAtt = new Attribute( this.endLunarCoordsAttName,
                                            (String) headerInfo.get( HeaderInfoTitle.END_LUNAR_COORD.toString()));

    // Read the ascending node.
    Double ascendingNode = Double.valueOf( (String) headerInfo.get( HeaderInfoTitle.ASCENDING_NODE.toString()) );
    this.ascendingNodeAtt = new Attribute( this.ascendingNodeAttName, ascendingNode);

    Double nodeHeading = Double.valueOf( (String) headerInfo.get( HeaderInfoTitle.NODE_HEADING.toString()) );
    this.nodeHeadingAtt = new Attribute( this.nodeHeadingAttName, nodeHeading);
  }
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    numSamplesPerBandDim = new Dimension(
            this.numSamplesPerBandDimName,
            numSamplesPerBand);

    // Read nominal resolution information
    nominalResolutionAtt = new Attribute( nominalResolutionAttName,
                                          (String) headerInfo.get( HeaderInfoTitle.NOMINAL_RESOLUTION.toString()));

    // Read bands per scanlin information.
    bandsPerScanlineAtt = new Attribute( bandsPerScanlineAttName,
                                         Integer.valueOf( (String) headerInfo.get( HeaderInfoTitle.BANDS_PER_SCANLINE.toString())));

    // Read bytes per smaple information
    bytesPerSampleAtt = new Attribute( bytesPerSampleAttName,
                                       Integer.valueOf( (String) headerInfo.get( HeaderInfoTitle.BYTES_PER_SAMPLE.toString())));;

    // Read byte offset for band 1 information.
    byteOffsetBand1Att = new Attribute( byteOffsetBand1AttName,
                                        Integer.valueOf( (String) headerInfo.get( HeaderInfoTitle.BYTE_OFFSET_BAND_1.toString())));

    // Read byte offset for band 2 information.
    byteOffsetBand2Att = new Attribute( byteOffsetBand2AttName,
                                        Integer.valueOf( (String) headerInfo.get( HeaderInfoTitle.BYTE_OFFSET_BAND_2.toString())));

    // Band 1 description
    band1Att = new Attribute( band1AttName, (String) headerInfo.get( HeaderInfoTitle.BAND_1.toString()));

    // Band 2 description
    band2Att = new Attribute( band2AttName, (String) headerInfo.get( HeaderInfoTitle.BAND_2.toString()));

    // Band organization
    bandOrganizationAtt = new Attribute( bandOrganizationAttName,
                                         (String) headerInfo.get( HeaderInfoTitle.ORGANIZATION.toString()));

    // thermal offset
    thermalOffsetAtt = new Attribute( thermalOffsetAttName,
                                      (String) headerInfo.get( HeaderInfoTitle.THERMAL_OFFSET.toString()));

    // thermal scale
    thermalScaleAtt = new Attribute( thermalScaleAttName,
                                      (String) headerInfo.get( HeaderInfoTitle.THERMAL_SCALE.toString()));

    // percent daylight
    percentDaylightAtt = new Attribute( percentDaylightAttName,
                                        Double.valueOf( (String) headerInfo.get( HeaderInfoTitle.PERCENT_DAYLIGHT.toString())));

    // percent full moon
    percentFullMoonAtt = new Attribute( percentFullMoonAttName,
                                        Double.valueOf( (String) headerInfo.get( HeaderInfoTitle.PERCENT_FULL_MOON.toString())));

    // percent terminator evident
    percentTerminatorEvidentAtt = new Attribute( percentTerminatorEvidentAttName,
                                        Double.valueOf( (String) headerInfo.get( HeaderInfoTitle.PERCENT_TERMINATOR_EVIDENT.toString())));
  }
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