Examples of com.knowgate.dfs.StreamPipe

com.knowgate.dfs.StreamPipe
This class links input and output streams so that data taken from input stream is transfered to the output stream. This class can be used to connect standard input/ouput stream of Java application with output/input streams of spawned child process, so that all user's input is redirected to the child and all it's output is visible for the user.
This class starts a thread, which transfers data from input stream to output stream until End Of File is reached or IOException caused by IO error is catched. @author Konstantin Knizhnik @version 1.04

       // (usually with a com.sun.mail.util.SharedByteArrayInputStream)
       // Decode content as an ISO-8859-1 string
       if (DebugFile.trace) DebugFile.writeln("No data handler found for Content-Type, decoding as ISO-8859-1 string");
       InputStream oInStrm = (InputStream) oContent;
       ByteArrayOutputStream oBaStrm = new ByteArrayOutputStream();
       StreamPipe oPipe = new StreamPipe();
       oPipe.between(oInStrm, oBaStrm);
       oRetVal = new MimeBodyPart();
       oRetVal.setText(oBaStrm.toString("ISO8859_1"));
     }
     else {
       throw new MessagingException("Unparsed Mime Content " + oContent.getClass().getName());

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      File oFile = oDBF.getFile();
      MboxFile oMBox = new MboxFile(oFile, MboxFile.READ_ONLY);


      InputStream oInStrm = oMBox.getMessageAsStream(oPos.longValue(), iLen);
      StreamPipe oPipe = new StreamPipe();
      oPipe.between(oInStrm, oOutStrm);
      oInStrm.close();
      oMBox.close();
    }
    else {
      Multipart oDBParts = getParts();

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        int iSize = oPart.getSize();
        if (iSize<=0) iSize = 4000;
        InputStream oInStrm = oPart.getInputStream();
        ByteArrayOutputStream oByStrm = new java.io.ByteArrayOutputStream(iSize);
        new StreamPipe().between(oInStrm, oByStrm);
        oInStrm.close();


        if (DebugFile.trace) DebugFile.writeln("part " + String.valueOf(p) + " size is " + String.valueOf(oByStrm.size()));


        ByteArrayDataSource oDataSrc = new ByteArrayDataSource(oByStrm.toByteArray(), oPart.getContentType());

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    throws ElementNotFoundException, IOException {
    Item item = getDocument().item();
    sItemName = Gadgets.removeChars(sItemName, "\"\\/?*:|<>;&");
    item.setName(sItemName);
    OutputStream outstrm = item.getOutputStream();
    StreamPipe pipe = new StreamPipe();
    pipe.between(instrm, outstrm);
    outstrm.close();
    Log.out.debug(getClass().getName()+".insertContentFromInputStream("+sItemName+")");
    DAO.log(oSes, getDocument(), getClass(), "INSERT ITEM", AtrilEvent.Level.INFO, sItemName);
  }

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        User oSender = new User(getSession(), getSessionAttribute("user_docid"));
        disconnect();
        String[] aTaxPayers = getParam("taxPayer").split(",");
        ByteArrayOutputStream oTxt = new ByteArrayOutputStream();
        ByteArrayOutputStream oHtm = new ByteArrayOutputStream();
        new StreamPipe().between(getClass().getResourceAsStream("Invitation.txt"), oTxt);
        new StreamPipe().between(getClass().getResourceAsStream("Invitation.html"),oHtm);
        
        for (int e=0; e<=6; e++) {
          final String sEmail = getParam("email["+String.valueOf(e)+"]","").trim().toLowerCase();
          if (sEmail.trim().length()>0) {
            new AsyncSendInvitation(sEmail, getParam("email["+String.valueOf(e)+"]"), getParam("firstName["+String.valueOf(e)+"]"), getParam("lastName["+String.valueOf(e)+"]"), oSender.getFirstName(), oSender.getLastName(), aTaxPayers, getSessionAttribute("customer_account_docid"), bCreateEmployee, getParam("approve","").length()>0, getParam("settle","").length()>0, getParam("premium","").length()>0,new StringBuffer(new String(oTxt.toByteArray())),new StringBuffer(new String(oHtm.toByteArray()))).start();

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    public void run() {
      final float MaxWidth = 512f;
      final float MaxHeight = 640f;
      AtrilSession oSes = null;
      StreamPipe oPipe;
      try {
        oSes = DAO.getAdminSession("ThumbnailCreator");
        oSes.autoCommit(true);
        Dms oDms = oSes.getDms();
        Document oDoc = oDms.getDocument(sParent);
        Item oItm = oDms.getDocument(sItem).item();
        String sFileName = oItm.name().toLowerCase();
        oPipe = new StreamPipe();
        ByteArrayOutputStream oByOut = new ByteArrayOutputStream();
        if (sFileName.endsWith(".pdf")) {
          Log.out.debug("Item.getInputStreamTranscodedToMime(image/jpeg)");
          oPipe.between(oItm.getInputStreamTranscodedToMime("image/jpeg"), oByOut);
        } else {
            Log.out.debug("Item.getInputStream()");
            oPipe.between(oItm.getInputStream(), oByOut);          
        }
        byte[] aBytes = oByOut.toByteArray();
        oByOut.close();
        oByOut = null;
        Log.out.debug("new Picture()");
        Picture oPic = new Picture();
        Log.out.debug("Before Picture.dimensions()");
        int[] aWidthHeight = oPic.dimensions(aBytes, "jpeg");
        Log.out.debug("After Picture.dimensions()");
        if (null==aWidthHeight)
          throw new NullPointerException("Unable to get dimensions for image "+oItm.name());
        Log.out.debug("Image width="+String.valueOf(aWidthHeight[0])+" height="+String.valueOf(aWidthHeight[1]));
        int iWidth, iHeight;
        if (aWidthHeight[0]<=MaxWidth && aWidthHeight[0]<=MaxHeight) {
          iWidth = aWidthHeight[0];
          iHeight = aWidthHeight[1];
        } else {
          float fWidthRatio = ((float) aWidthHeight[0]) / MaxWidth;
          float fHeightRatio = ((float) aWidthHeight[1]) / MaxHeight;
          if (fWidthRatio>fHeightRatio) {
            iWidth = (int) MaxWidth;
            iHeight = (int) (MaxWidth*aWidthHeight[1])/aWidthHeight[0];
          } else {
            iWidth = (int) (aWidthHeight[0]*MaxHeight)/aWidthHeight[1];
            iHeight = (int) MaxHeight;
          }
        }
        Log.out.debug("Resampled width="+String.valueOf(iWidth)+" height="+String.valueOf(iHeight));
        String sCodec = null;
        if (sFileName.endsWith(".jpg") || sFileName.endsWith(".jpeg") || sFileName.endsWith(".pdf")) 
          sCodec = "jpeg";
        else if (sFileName.endsWith(".gif"))
          sCodec = "gif";
        else if (sFileName.endsWith(".tif") || sFileName.endsWith(".tiff"))
          sCodec = "tiff";
        else {
          Log.out.error("ThumbnailCreator.run()  Could not find suitable codec for file "+oItm.name());
          throw new InstantiationException("Could not find suitable codec for file "+oItm.name());
        }
        Log.out.debug("Picture.createThumbBitmap("+sCodec+","+String.valueOf(iWidth)+","+String.valueOf(iHeight)+",80)");
        byte[] byThumb = oPic.createThumbBitmap(aBytes, sCodec, iWidth, iHeight, 80);
        
        Document oThl = oDms.newDocument(oDms.getDocumentType(oDoc.type().name()+"Thumbnail"), oDoc);
        AttributeMultiValue oAtr = oThl.attribute("width");
      oAtr.set((long) iWidth);
      oAtr = oThl.attribute("height");
      oAtr.set((long) iHeight);
      oThl.save("");
        Item oThi = oThl.item();
        String sItemName = "th"+oDoc.id()+".jpg";
        oThi.setName(sItemName);
        oThi.mimeType("image/jpeg");
        OutputStream oOutStrm = oThi.getOutputStream();
        oPipe = new StreamPipe();
        oPipe.between(new ByteArrayInputStream(byThumb), oOutStrm);
        oThl.save("");
        oOutStrm.close();
        Log.out.debug("Thumbnail creation done");
        DAO.log(oSes, oThl, Class.forName("com.zesped.model."+oDoc.type().name()+"Thumbnail"), "INSERT THUMBNAIL", AtrilEvent.Level.INFO, sItemName);
        oSes.disconnect();

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Related Classes of com.knowgate.dfs.StreamPipe

com.knowgate.hipermail.DBMimeMessage

com.zesped.action.SendInvitations

com.zesped.model.BaseItemObject

com.zesped.util.ThumbnailCreator

java.io.FileInputStream

java.io.BufferedInputStream

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