Пример #1
0
  private void getAttributeValues(DocFlavor flavor) throws PrintException {

    if (reqAttrSet.get(Fidelity.class) == Fidelity.FIDELITY_TRUE) {
      fidelity = true;
    } else {
      fidelity = false;
    }

    Class category;
    Attribute[] attrs = reqAttrSet.toArray();
    for (int i = 0; i < attrs.length; i++) {
      Attribute attr = attrs[i];
      category = attr.getCategory();
      if (fidelity == true) {
        if (!service.isAttributeCategorySupported(category)) {
          notifyEvent(PrintJobEvent.JOB_FAILED);
          throw new PrintJobAttributeException("unsupported category: " + category, category, null);
        } else if (!service.isAttributeValueSupported(attr, flavor, null)) {
          notifyEvent(PrintJobEvent.JOB_FAILED);
          throw new PrintJobAttributeException("unsupported attribute: " + attr, null, attr);
        }
      }
      if (category == Destination.class) {
        URI uri = ((Destination) attr).getURI();
        if (!"file".equals(uri.getScheme())) {
          notifyEvent(PrintJobEvent.JOB_FAILED);
          throw new PrintException("Not a file: URI");
        } else {
          try {
            mDestination = (new File(uri)).getPath();
          } catch (Exception e) {
            throw new PrintException(e);
          }
          // check write access
          SecurityManager security = System.getSecurityManager();
          if (security != null) {
            try {
              security.checkWrite(mDestination);
            } catch (SecurityException se) {
              notifyEvent(PrintJobEvent.JOB_FAILED);
              throw new PrintException(se);
            }
          }
        }
      } else if (category == JobName.class) {
        jobName = ((JobName) attr).getValue();
      } else if (category == Copies.class) {
        copies = ((Copies) attr).getValue();
      } else if (category == Media.class) {
        if (attr instanceof MediaSizeName) {
          mediaName = (MediaSizeName) attr;
          // If requested MediaSizeName is not supported,
          // get the corresponding media size - this will
          // be used to create a new PageFormat.
          if (!service.isAttributeValueSupported(attr, null, null)) {
            mediaSize = MediaSize.getMediaSizeForName(mediaName);
          }
        }
      } else if (category == OrientationRequested.class) {
        orient = (OrientationRequested) attr;
      }
    }
  }
Пример #2
0
  public void print(Doc doc, PrintRequestAttributeSet attributes) throws PrintException {

    synchronized (this) {
      if (printing) {
        throw new PrintException("already printing");
      } else {
        printing = true;
      }
    }

    PrinterState prnState = (PrinterState) service.getAttribute(PrinterState.class);
    if (prnState == PrinterState.STOPPED) {
      PrinterStateReasons prnStateReasons =
          (PrinterStateReasons) service.getAttribute(PrinterStateReasons.class);
      if ((prnStateReasons != null) && (prnStateReasons.containsKey(PrinterStateReason.SHUTDOWN))) {
        throw new PrintException("PrintService is no longer available.");
      }
    }

    if ((PrinterIsAcceptingJobs) (service.getAttribute(PrinterIsAcceptingJobs.class))
        == PrinterIsAcceptingJobs.NOT_ACCEPTING_JOBS) {
      throw new PrintException("Printer is not accepting job.");
    }

    this.doc = doc;
    /* check if the parameters are valid before doing much processing */
    DocFlavor flavor = doc.getDocFlavor();
    Object data;

    try {
      data = doc.getPrintData();
    } catch (IOException e) {
      notifyEvent(PrintJobEvent.JOB_FAILED);
      throw new PrintException("can't get print data: " + e.toString());
    }

    if (flavor == null || (!service.isDocFlavorSupported(flavor))) {
      notifyEvent(PrintJobEvent.JOB_FAILED);
      throw new PrintJobFlavorException("invalid flavor", flavor);
    }

    initializeAttributeSets(doc, attributes);

    getAttributeValues(flavor);

    String repClassName = flavor.getRepresentationClassName();

    if (flavor.equals(DocFlavor.INPUT_STREAM.GIF)
        || flavor.equals(DocFlavor.INPUT_STREAM.JPEG)
        || flavor.equals(DocFlavor.INPUT_STREAM.PNG)
        || flavor.equals(DocFlavor.BYTE_ARRAY.GIF)
        || flavor.equals(DocFlavor.BYTE_ARRAY.JPEG)
        || flavor.equals(DocFlavor.BYTE_ARRAY.PNG)) {
      try {
        instream = doc.getStreamForBytes();
        if (instream == null) {
          notifyEvent(PrintJobEvent.JOB_FAILED);
          throw new PrintException("No stream for data");
        }
        printableJob(new ImagePrinter(instream));
        service.wakeNotifier();
        return;
      } catch (ClassCastException cce) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException(cce);
      } catch (IOException ioe) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException(ioe);
      }
    } else if (flavor.equals(DocFlavor.URL.GIF)
        || flavor.equals(DocFlavor.URL.JPEG)
        || flavor.equals(DocFlavor.URL.PNG)) {
      try {
        printableJob(new ImagePrinter((URL) data));
        service.wakeNotifier();
        return;
      } catch (ClassCastException cce) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException(cce);
      }
    } else if (repClassName.equals("java.awt.print.Pageable")) {
      try {
        pageableJob((Pageable) doc.getPrintData());
        service.wakeNotifier();
        return;
      } catch (ClassCastException cce) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException(cce);
      } catch (IOException ioe) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException(ioe);
      }
    } else if (repClassName.equals("java.awt.print.Printable")) {
      try {
        printableJob((Printable) doc.getPrintData());
        service.wakeNotifier();
        return;
      } catch (ClassCastException cce) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException(cce);
      } catch (IOException ioe) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException(ioe);
      }
    } else if (repClassName.equals("[B")
        || repClassName.equals("java.io.InputStream")
        || repClassName.equals("java.net.URL")) {

      if (repClassName.equals("java.net.URL")) {
        URL url = (URL) data;
        try {
          instream = url.openStream();
        } catch (IOException e) {
          notifyEvent(PrintJobEvent.JOB_FAILED);
          throw new PrintException(e.toString());
        }
      } else {
        try {
          instream = doc.getStreamForBytes();
        } catch (IOException ioe) {
          notifyEvent(PrintJobEvent.JOB_FAILED);
          throw new PrintException(ioe.toString());
        }
      }

      if (instream == null) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException("No stream for data");
      }

      if (mDestination != null) { // if destination attribute is set
        try {
          FileOutputStream fos = new FileOutputStream(mDestination);
          byte[] buffer = new byte[1024];
          int cread;

          while ((cread = instream.read(buffer, 0, buffer.length)) >= 0) {
            fos.write(buffer, 0, cread);
          }
          fos.flush();
          fos.close();
        } catch (FileNotFoundException fnfe) {
          notifyEvent(PrintJobEvent.JOB_FAILED);
          throw new PrintException(fnfe.toString());
        } catch (IOException ioe) {
          notifyEvent(PrintJobEvent.JOB_FAILED);
          throw new PrintException(ioe.toString());
        }
        notifyEvent(PrintJobEvent.DATA_TRANSFER_COMPLETE);
        notifyEvent(PrintJobEvent.JOB_COMPLETE);
        service.wakeNotifier();
        return;
      }

      if (!startPrintRawData(service.getName(), jobName)) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException("Print job failed to start.");
      }
      BufferedInputStream bin = new BufferedInputStream(instream);
      int bread = 0;
      try {
        byte[] buffer = new byte[PRINTBUFFERLEN];

        while ((bread = bin.read(buffer, 0, PRINTBUFFERLEN)) >= 0) {
          if (!printRawData(buffer, bread)) {
            bin.close();
            notifyEvent(PrintJobEvent.JOB_FAILED);
            throw new PrintException("Problem while spooling data");
          }
        }
        bin.close();
        if (!endPrintRawData()) {
          notifyEvent(PrintJobEvent.JOB_FAILED);
          throw new PrintException("Print job failed to close properly.");
        }
        notifyEvent(PrintJobEvent.DATA_TRANSFER_COMPLETE);
      } catch (IOException e) {
        notifyEvent(PrintJobEvent.JOB_FAILED);
        throw new PrintException(e.toString());
      } finally {
        notifyEvent(PrintJobEvent.NO_MORE_EVENTS);
      }
    } else {
      notifyEvent(PrintJobEvent.JOB_FAILED);
      throw new PrintException("unrecognized class: " + repClassName);
    }
    service.wakeNotifier();
  }