git.gag.com Git - debian/openrocket/blob - core/src/net/sf/openrocket/gui/print/DesignReport.java

   1 /*
   2  * DesignReport.java
   3  */
   4 package net.sf.openrocket.gui.print;
   5
   6 import java.awt.Graphics2D;
   7 import java.io.IOException;
   8 import java.text.DecimalFormat;
   9
  10 import net.sf.openrocket.document.OpenRocketDocument;
  11 import net.sf.openrocket.document.Simulation;
  12 import net.sf.openrocket.gui.figureelements.FigureElement;
  13 import net.sf.openrocket.gui.figureelements.RocketInfo;
  14 import net.sf.openrocket.gui.scalefigure.RocketPanel;
  15 import net.sf.openrocket.gui.util.SwingPreferences;
  16 import net.sf.openrocket.logging.LogHelper;
  17 import net.sf.openrocket.masscalc.BasicMassCalculator;
  18 import net.sf.openrocket.masscalc.MassCalculator;
  19 import net.sf.openrocket.masscalc.MassCalculator.MassCalcType;
  20 import net.sf.openrocket.motor.Motor;
  21 import net.sf.openrocket.rocketcomponent.Configuration;
  22 import net.sf.openrocket.rocketcomponent.MotorMount;
  23 import net.sf.openrocket.rocketcomponent.Rocket;
  24 import net.sf.openrocket.rocketcomponent.RocketComponent;
  25 import net.sf.openrocket.rocketcomponent.Stage;
  26 import net.sf.openrocket.simulation.FlightData;
  27 import net.sf.openrocket.simulation.exception.SimulationException;
  28 import net.sf.openrocket.startup.Application;
  29 import net.sf.openrocket.unit.Unit;
  30 import net.sf.openrocket.unit.UnitGroup;
  31 import net.sf.openrocket.util.Chars;
  32 import net.sf.openrocket.util.Coordinate;
  33
  34 import com.itextpdf.text.Document;
  35 import com.itextpdf.text.DocumentException;
  36 import com.itextpdf.text.Element;
  37 import com.itextpdf.text.Paragraph;
  38 import com.itextpdf.text.Rectangle;
  39 import com.itextpdf.text.pdf.BaseFont;
  40 import com.itextpdf.text.pdf.DefaultFontMapper;
  41 import com.itextpdf.text.pdf.PdfContentByte;
  42 import com.itextpdf.text.pdf.PdfPCell;
  43 import com.itextpdf.text.pdf.PdfPTable;
  44 import com.itextpdf.text.pdf.PdfWriter;
  45
  46 /**
  47  * <pre>
  48  * #  Title # Section describing the rocket in general without motors
  49  * # Section describing the rocket in general without motors
  50  * <p/>
  51  * design name
  52  * empty mass & CG
  53  * CP position
  54  * CP position at 5 degree AOA (or similar)
  55  * number of stages
  56  * parachute/streamer sizes
  57  * max. diameter (caliber)
  58  * velocity at exit of rail/rod
  59  * minimum safe velocity reached in x inches/cm
  60  * <p/>
  61  * # Section for each motor configuration
  62  * <p/>
  63  * a summary of the motors, e.g. 3xC6-0; B4-6
  64  * a list of the motors including the manufacturer, designation (maybe also info like burn time, grams of propellant,
  65  * total impulse)
  66  * total grams of propellant
  67  * total impulse
  68  * takeoff weight
  69  * CG and CP position, stability margin
  70  * predicted flight altitude, max. velocity and max. acceleration
  71  * predicted velocity at chute deployment
  72  * predicted descent rate
  73  * Thrust to Weight Ratio of each stage
  74  * <p/>
  75  * </pre>
  76  */
  77 public class DesignReport {
  78
  79         /**
  80          * The logger.
  81          */
  82         private static final LogHelper log = Application.getLogger();
  83     public static final double SCALE_FUDGE_FACTOR = 0.4d;
  84
  85     /**
  86          * The OR Document.
  87          */
  88         private OpenRocketDocument rocketDocument;
  89
  90         /**
  91          * A panel used for rendering of the design diagram.
  92          */
  93         final RocketPanel panel;
  94
  95         /**
  96          * The iText document.
  97          */
  98         protected Document document;
  99
 100         /** The displayed strings. */
 101         private static final String STAGES = "Stages: ";
 102         private static final String MASS_WITH_MOTORS = "Mass (with motors): ";
 103         private static final String MASS_WITH_MOTOR = "Mass (with motor): ";
 104         private static final String MASS_EMPTY = "Mass (Empty): ";
 105         private static final String STABILITY = "Stability: ";
 106         private static final String CG = "CG: ";
 107         private static final String CP = "CP: ";
 108         private static final String MOTOR = "Motor";
 109         private static final String AVG_THRUST = "Avg Thrust";
 110         private static final String BURN_TIME = "Burn Time";
 111         private static final String MAX_THRUST = "Max Thrust";
 112         private static final String TOTAL_IMPULSE = "Total Impulse";
 113         private static final String THRUST_TO_WT = "Thrust to Wt";
 114         private static final String PROPELLANT_WT = "Propellant Wt";
 115         private static final String SIZE = "Size";
 116         private static final String ALTITUDE = "Altitude";
 117         private static final String FLIGHT_TIME = "Flight Time";
 118         private static final String TIME_TO_APOGEE = "Time to Apogee";
 119         private static final String VELOCITY_OFF_PAD = "Velocity off Pad";
 120         private static final String MAX_VELOCITY = "Max Velocity";
 121         private static final String DEPLOYMENT_VELOCITY = "Velocity at Deployment";
 122         private static final String LANDING_VELOCITY = "Landing Velocity";
 123         private static final String ROCKET_DESIGN = "Rocket Design";
 124         private static final double GRAVITY_CONSTANT = 9.80665d;
 125
 126         /**
 127          * Constructor.
 128          *
 129          * @param theRocDoc the OR document
 130          * @param theIDoc   the iText document
 131          */
 132         public DesignReport(OpenRocketDocument theRocDoc, Document theIDoc) {
 133                 document = theIDoc;
 134                 rocketDocument = theRocDoc;
 135                 panel = new RocketPanel(rocketDocument);
 136         }
 137
 138         /**
 139          * Main entry point.  Prints the rocket drawing and design data.
 140          *
 141          * @param writer a direct byte writer
 142          */
 143         public void writeToDocument(PdfWriter writer) {
 144                 if (writer == null) {
 145                         return;
 146                 }
 147                 com.itextpdf.text.Rectangle pageSize = document.getPageSize();
 148                 int pageImageableWidth = (int) pageSize.getWidth() - (int) pageSize.getBorderWidth() * 2;
 149                 int pageImageableHeight = (int) pageSize.getHeight() / 2 - (int) pageSize.getBorderWidthTop();
 150
 151                 PrintUtilities.addText(document, PrintUtilities.BIG_BOLD, ROCKET_DESIGN);
 152
 153                 Rocket rocket = rocketDocument.getRocket();
 154                 final Configuration configuration = rocket.getDefaultConfiguration().clone();
 155                 configuration.setAllStages();
 156                 PdfContentByte canvas = writer.getDirectContent();
 157
 158                 final PrintFigure figure = new PrintFigure(configuration);
 159
 160                 FigureElement cp = panel.getExtraCP();
 161                 FigureElement cg = panel.getExtraCG();
 162                 RocketInfo text = panel.getExtraText();
 163
 164                 double scale = paintRocketDiagram(pageImageableWidth, pageImageableHeight, canvas, figure, cp, cg);
 165
 166                 canvas.beginText();
 167                 try {
 168                         canvas.setFontAndSize(BaseFont.createFont(PrintUtilities.NORMAL.getFamilyname(), BaseFont.CP1252,
 169                                                                                                                 BaseFont.EMBEDDED), PrintUtilities.NORMAL_FONT_SIZE);
 170                 } catch (DocumentException e) {
 171                         log.error("Could not set font.", e);
 172                 } catch (IOException e) {
 173                         log.error("Could not create font.", e);
 174                 }
 175                 int figHeightPts = (int) (PrintUnit.METERS.toPoints(figure.getFigureHeight()) * 0.4 * (scale / PrintUnit.METERS
 176                                 .toPoints(1)));
 177                 final int diagramHeight = pageImageableHeight * 2 - 70 - (figHeightPts);
 178                 canvas.moveText(document.leftMargin() + pageSize.getBorderWidthLeft(), diagramHeight);
 179                 canvas.moveTextWithLeading(0, -16);
 180
 181                 float initialY = canvas.getYTLM();
 182
 183                 canvas.showText(rocketDocument.getRocket().getName());
 184
 185                 canvas.newlineShowText(STAGES);
 186                 canvas.showText("" + rocket.getStageCount());
 187
 188
 189                 if (configuration.hasMotors()) {
 190                         if (configuration.getStageCount() > 1) {
 191                                 canvas.newlineShowText(MASS_WITH_MOTORS);
 192                         } else {
 193                                 canvas.newlineShowText(MASS_WITH_MOTOR);
 194                         }
 195                 } else {
 196                         canvas.newlineShowText(MASS_EMPTY);
 197                 }
 198                 canvas.showText(text.getMass(UnitGroup.UNITS_MASS.getDefaultUnit()));
 199
 200                 canvas.newlineShowText(STABILITY);
 201                 canvas.showText(text.getStability());
 202
 203                 canvas.newlineShowText(CG);
 204                 canvas.showText(text.getCg());
 205
 206                 canvas.newlineShowText(CP);
 207                 canvas.showText(text.getCp());
 208                 canvas.endText();
 209
 210                 try {
 211                         //Move the internal pointer of the document below that of what was just written using the direct byte buffer.
 212                         Paragraph paragraph = new Paragraph();
 213                         float finalY = canvas.getYTLM();
 214                         int heightOfDiagramAndText = (int) (pageSize.getHeight() - (finalY - initialY + diagramHeight));
 215
 216                         paragraph.setSpacingAfter(heightOfDiagramAndText);
 217                         document.add(paragraph);
 218
 219                         String[] motorIds = rocket.getMotorConfigurationIDs();
 220
 221                         for (int j = 0; j < motorIds.length; j++) {
 222                                 String motorId = motorIds[j];
 223                                 if (motorId != null) {
 224                                         PdfPTable parent = new PdfPTable(2);
 225                                         parent.setWidthPercentage(100);
 226                                         parent.setHorizontalAlignment(Element.ALIGN_LEFT);
 227                                         parent.setSpacingBefore(0);
 228                                         parent.setWidths(new int[] { 1, 3 });
 229                                         int leading = 0;
 230                                         //The first motor config is always null.  Skip it and the top-most motor, then set the leading.
 231                                         if (j > 1) {
 232                                                 leading = 25;
 233                                         }
 234                                         addFlightData(rocket, motorId, parent, leading);
 235                                         addMotorData(rocket, motorId, parent);
 236                                         document.add(parent);
 237                                 }
 238                         }
 239                 } catch (DocumentException e) {
 240                         log.error("Could not modify document.", e);
 241                 }
 242         }
 243
 244
 245         /**
 246          * Paint a diagram of the rocket into the PDF document.
 247          *
 248          * @param thePageImageableWidth  the number of points in the width of the page available for drawing
 249          * @param thePageImageableHeight the number of points in the height of the page available for drawing
 250          * @param theCanvas              the direct byte writer
 251          * @param theFigure              the print figure
 252          * @param theCp                  the center of pressure figure element
 253          * @param theCg                  the center of gravity figure element
 254          *
 255          * @return the scale of the diagram
 256          */
 257         private double paintRocketDiagram(final int thePageImageableWidth, final int thePageImageableHeight,
 258                                                                                 final PdfContentByte theCanvas, final PrintFigure theFigure,
 259                                                                                 final FigureElement theCp, final FigureElement theCg) {
 260                 theFigure.clearAbsoluteExtra();
 261                 theFigure.clearRelativeExtra();
 262                 theFigure.addRelativeExtra(theCp);
 263                 theFigure.addRelativeExtra(theCg);
 264                 theFigure.updateFigure();
 265
 266                 double scale =
 267                                 (thePageImageableWidth * 2.2) / theFigure.getFigureWidth();
 268                 theFigure.setScale(scale);
 269                 /*
 270                  * page dimensions are in points-per-inch, which, in Java2D, are the same as pixels-per-inch; thus we don't need any conversion
 271                  */
 272                 theFigure.setSize(thePageImageableWidth, thePageImageableHeight);
 273                 theFigure.updateFigure();
 274
 275                 final DefaultFontMapper mapper = new DefaultFontMapper();
 276                 Graphics2D g2d = theCanvas.createGraphics(thePageImageableWidth, thePageImageableHeight * 2, mapper);
 277         final double halfFigureHeight = SCALE_FUDGE_FACTOR * theFigure.getFigureHeightPx()/2;
 278         int y = PrintUnit.POINTS_PER_INCH;
 279         //If the y dimension is negative, then it will potentially be drawn off the top of the page.  Move the origin
 280         //to allow for this.
 281         if (theFigure.getDimensions().getY() < 0.0d) {
 282             y += (int)halfFigureHeight;
 283         }
 284         g2d.translate(20, y);
 285
 286                 g2d.scale(SCALE_FUDGE_FACTOR, SCALE_FUDGE_FACTOR);
 287                 theFigure.paint(g2d);
 288                 g2d.dispose();
 289                 return scale;
 290         }
 291
 292         /**
 293          * Add the motor data for a motor configuration to the table.
 294          *
 295          * @param rocket        the rocket
 296          * @param motorId       the motor ID to output
 297          * @param parent        the parent to which the motor data will be added
 298          */
 299         private void addMotorData(Rocket rocket, String motorId, final PdfPTable parent) {
 300
 301                 PdfPTable motorTable = new PdfPTable(8);
 302                 motorTable.setWidthPercentage(68);
 303                 motorTable.setHorizontalAlignment(Element.ALIGN_LEFT);
 304
 305                 final PdfPCell motorCell = ITextHelper.createCell(MOTOR, PdfPCell.BOTTOM);
 306                 final int mPad = 10;
 307                 motorCell.setPaddingLeft(mPad);
 308                 motorTable.addCell(motorCell);
 309                 motorTable.addCell(ITextHelper.createCell(AVG_THRUST, PdfPCell.BOTTOM));
 310                 motorTable.addCell(ITextHelper.createCell(BURN_TIME, PdfPCell.BOTTOM));
 311                 motorTable.addCell(ITextHelper.createCell(MAX_THRUST, PdfPCell.BOTTOM));
 312                 motorTable.addCell(ITextHelper.createCell(TOTAL_IMPULSE, PdfPCell.BOTTOM));
 313                 motorTable.addCell(ITextHelper.createCell(THRUST_TO_WT, PdfPCell.BOTTOM));
 314                 motorTable.addCell(ITextHelper.createCell(PROPELLANT_WT, PdfPCell.BOTTOM));
 315                 motorTable.addCell(ITextHelper.createCell(SIZE, PdfPCell.BOTTOM));
 316
 317                 DecimalFormat ttwFormat = new DecimalFormat("0.00");
 318
 319                 MassCalculator massCalc = new BasicMassCalculator();
 320
 321                 Configuration config = new Configuration(rocket);
 322                 config.setMotorConfigurationID(motorId);
 323
 324                 int totalMotorCount = 0;
 325                 double totalPropMass = 0;
 326                 double totalImpulse = 0;
 327                 double totalTTW = 0;
 328
 329                 int stage = 0;
 330                 double stageMass = 0;
 331
 332                 boolean topBorder = false;
 333                 for (RocketComponent c : rocket) {
 334
 335                         if (c instanceof Stage) {
 336                                 config.setToStage(stage);
 337                                 stage++;
 338                                 stageMass = massCalc.getCG(config, MassCalcType.LAUNCH_MASS).weight;
 339                                 // Calculate total thrust-to-weight from only lowest stage motors
 340                                 totalTTW = 0;
 341                                 topBorder = true;
 342                         }
 343
 344                         if (c instanceof MotorMount && ((MotorMount) c).isMotorMount()) {
 345                                 MotorMount mount = (MotorMount) c;
 346
 347                                 if (mount.isMotorMount() && mount.getMotor(motorId) != null) {
 348                                         Motor motor = mount.getMotor(motorId);
 349                                         int motorCount = c.toAbsolute(Coordinate.NUL).length;
 350
 351
 352                                         int border = Rectangle.NO_BORDER;
 353                                         if (topBorder) {
 354                                                 border = Rectangle.TOP;
 355                                                 topBorder = false;
 356                                         }
 357
 358                                         String name = motor.getDesignation();
 359                                         if (motorCount > 1) {
 360                                                 name += " (" + Chars.TIMES + motorCount + ")";
 361                                         }
 362
 363                                         final PdfPCell motorVCell = ITextHelper.createCell(name, border);
 364                                         motorVCell.setPaddingLeft(mPad);
 365                                         motorTable.addCell(motorVCell);
 366                                         motorTable.addCell(ITextHelper.createCell(
 367                                                         UnitGroup.UNITS_FORCE.getDefaultUnit().toStringUnit(motor.getAverageThrustEstimate()), border));
 368                                         motorTable.addCell(ITextHelper.createCell(
 369                                                         UnitGroup.UNITS_FLIGHT_TIME.getDefaultUnit().toStringUnit(motor.getBurnTimeEstimate()), border));
 370                                         motorTable.addCell(ITextHelper.createCell(
 371                                                         UnitGroup.UNITS_FORCE.getDefaultUnit().toStringUnit(motor.getMaxThrustEstimate()), border));
 372                                         motorTable.addCell(ITextHelper.createCell(
 373                                                         UnitGroup.UNITS_IMPULSE.getDefaultUnit().toStringUnit(motor.getTotalImpulseEstimate()), border));
 374
 375                                         double ttw = motor.getAverageThrustEstimate() / (stageMass * GRAVITY_CONSTANT);
 376                                         motorTable.addCell(ITextHelper.createCell(
 377                                                         ttwFormat.format(ttw) + ":1", border));
 378
 379                                         double propMass = (motor.getLaunchCG().weight - motor.getEmptyCG().weight);
 380                                         motorTable.addCell(ITextHelper.createCell(
 381                                                         UnitGroup.UNITS_MASS.getDefaultUnit().toStringUnit(propMass), border));
 382
 383                                         final Unit motorUnit = UnitGroup.UNITS_MOTOR_DIMENSIONS.getDefaultUnit();
 384                                         motorTable.addCell(ITextHelper.createCell(motorUnit.toString(motor.getDiameter()) +
 385                                                                                                                                 "/" +
 386                                                                                                                                 motorUnit.toString(motor.getLength()) + " " +
 387                                                                                                                                 motorUnit.toString(), border));
 388
 389                                         // Sum up total count
 390                                         totalMotorCount += motorCount;
 391                                         totalPropMass += propMass * motorCount;
 392                                         totalImpulse += motor.getTotalImpulseEstimate() * motorCount;
 393                                         totalTTW += ttw * motorCount;
 394                                 }
 395                         }
 396                 }
 397
 398                 if (totalMotorCount > 1) {
 399                         int border = Rectangle.TOP;
 400                         final PdfPCell motorVCell = ITextHelper.createCell("Total:", border);
 401                         motorVCell.setPaddingLeft(mPad);
 402                         motorTable.addCell(motorVCell);
 403                         motorTable.addCell(ITextHelper.createCell("", border));
 404                         motorTable.addCell(ITextHelper.createCell("", border));
 405                         motorTable.addCell(ITextHelper.createCell("", border));
 406                         motorTable.addCell(ITextHelper.createCell(
 407                                                 UnitGroup.UNITS_IMPULSE.getDefaultUnit().toStringUnit(totalImpulse), border));
 408                         motorTable.addCell(ITextHelper.createCell(
 409                                         ttwFormat.format(totalTTW) + ":1", border));
 410                         motorTable.addCell(ITextHelper.createCell(
 411                                                 UnitGroup.UNITS_MASS.getDefaultUnit().toStringUnit(totalPropMass), border));
 412                         motorTable.addCell(ITextHelper.createCell("", border));
 413
 414                 }
 415
 416                 PdfPCell c = new PdfPCell(motorTable);
 417                 c.setBorder(PdfPCell.LEFT);
 418                 c.setBorderWidthTop(0f);
 419                 parent.addCell(c);
 420         }
 421
 422
 423         /**
 424          * Add the motor data for a motor configuration to the table.
 425          *
 426          * @param theRocket the rocket
 427          * @param motorId   a motor configuration id
 428          * @param parent    the parent to which the motor data will be added
 429          * @param leading   the number of points for the leading
 430          */
 431         private void addFlightData(final Rocket theRocket, final String motorId, final PdfPTable parent, int leading) {
 432
 433                 // Perform flight simulation
 434                 Rocket duplicate = theRocket.copyWithOriginalID();
 435                 FlightData flight = null;
 436                 try {
 437                         Simulation simulation = ((SwingPreferences)Application.getPreferences()).getBackgroundSimulation(duplicate);
 438                         simulation.getOptions().setMotorConfigurationID(motorId);
 439                         simulation.simulate();
 440                         flight = simulation.getSimulatedData();
 441                 } catch (SimulationException e1) {
 442                         // Ignore
 443                 }
 444
 445                 // Output the flight data
 446                 if (flight != null) {
 447                         try {
 448                                 final Unit distanceUnit = UnitGroup.UNITS_DISTANCE.getDefaultUnit();
 449                                 final Unit velocityUnit = UnitGroup.UNITS_VELOCITY.getDefaultUnit();
 450                                 final Unit flightTimeUnit = UnitGroup.UNITS_FLIGHT_TIME.getDefaultUnit();
 451
 452                                 PdfPTable labelTable = new PdfPTable(2);
 453                                 labelTable.setWidths(new int[] { 3, 2 });
 454                                 final Paragraph chunk = ITextHelper.createParagraph(stripBrackets(
 455                                                         theRocket.getMotorConfigurationNameOrDescription(motorId)), PrintUtilities.BOLD);
 456                                 chunk.setLeading(leading);
 457                                 chunk.setSpacingAfter(3f);
 458
 459                                 document.add(chunk);
 460
 461                                 final PdfPCell cell = ITextHelper.createCell(ALTITUDE, 2, 2);
 462                                 cell.setUseBorderPadding(false);
 463                                 cell.setBorderWidthTop(0f);
 464                                 labelTable.addCell(cell);
 465                                 labelTable.addCell(ITextHelper.createCell(distanceUnit.toStringUnit(flight.getMaxAltitude()), 2, 2));
 466
 467                                 labelTable.addCell(ITextHelper.createCell(FLIGHT_TIME, 2, 2));
 468                                 labelTable.addCell(ITextHelper.createCell(flightTimeUnit.toStringUnit(flight.getFlightTime()), 2, 2));
 469
 470                                 labelTable.addCell(ITextHelper.createCell(TIME_TO_APOGEE, 2, 2));
 471                                 labelTable.addCell(ITextHelper.createCell(flightTimeUnit.toStringUnit(flight.getTimeToApogee()), 2, 2));
 472
 473                                 labelTable.addCell(ITextHelper.createCell(VELOCITY_OFF_PAD, 2, 2));
 474                                 labelTable.addCell(ITextHelper.createCell(velocityUnit.toStringUnit(flight.getLaunchRodVelocity()), 2, 2));
 475
 476                                 labelTable.addCell(ITextHelper.createCell(MAX_VELOCITY, 2, 2));
 477                                 labelTable.addCell(ITextHelper.createCell(velocityUnit.toStringUnit(flight.getMaxVelocity()), 2, 2));
 478
 479                                 labelTable.addCell(ITextHelper.createCell(DEPLOYMENT_VELOCITY, 2,2));
 480                                 labelTable.addCell(ITextHelper.createCell(velocityUnit.toStringUnit(flight.getDeploymentVelocity()),2,2));
 481
 482                                 labelTable.addCell(ITextHelper.createCell(LANDING_VELOCITY, 2, 2));
 483                                 labelTable.addCell(ITextHelper.createCell(velocityUnit.toStringUnit(flight.getGroundHitVelocity()), 2, 2));
 484
 485                                 //Add the table to the parent; have to wrap it in a cell
 486                                 PdfPCell c = new PdfPCell(labelTable);
 487                                 c.setBorder(PdfPCell.RIGHT);
 488                                 c.setBorderWidthTop(0);
 489                                 c.setTop(0);
 490                                 parent.addCell(c);
 491                         } catch (DocumentException e) {
 492                                 log.error("Could not add flight data to document.", e);
 493                         }
 494                 }
 495         }
 496
 497         /**
 498          * Strip [] brackets from a string.
 499          *
 500          * @param target the original string
 501          *
 502          * @return target with [] removed
 503          */
 504         private String stripBrackets(String target) {
 505                 return stripLeftBracket(stripRightBracket(target));
 506         }
 507
 508         /**
 509          * Strip [ from a string.
 510          *
 511          * @param target the original string
 512          *
 513          * @return target with [ removed
 514          */
 515         private String stripLeftBracket(String target) {
 516                 return target.replace("[", "");
 517         }
 518
 519         /**
 520          * Strip ] from a string.
 521          *
 522          * @param target the original string
 523          *
 524          * @return target with ] removed
 525          */
 526         private String stripRightBracket(String target) {
 527                 return target.replace("]", "");
 528         }
 529
 530 }