Examples of com.evernote.edam.type.Data

com.evernote.edam.type.Data
In several places, EDAM exchanges blocks of bytes of data for a component which may be relatively large. For example: the contents of a clipped HTML note, the bytes of an embedded image, or the recognition XML for a large image. This structure is used in the protocol to represent any of those large blocks of data when they are transmitted or when they are only referenced their metadata.

bodyHash

This field carries a one-way hash of the contents of the data body, in binary form. The hash function is MD5
Length: EDAM_HASH_LEN (exactly)

size

The length, in bytes, of the data body.

body

This field is set to contain the binary contents of the data whenever the resource is being transferred. If only metadata is being exchanged, this field will be empty. For example, a client could notify the service about the change to an attribute for a resource without transmitting the binary resource contents.

        r.setUpdateSequenceNum(0);
        r.setWidth((short) 0);
        r.setHeight((short) 0);
        r.setDuration((short) 0);
              
        Data d = new Data();
        d.setBody(fileData);
        d.setBodyIsSet(true);
        d.setBodyHash(hash);
        d.setBodyHashIsSet(true);
        r.setData(d);
        d.setSize(fileData.length);
        
        int fileNamePos = url.lastIndexOf(File.separator);
        if (fileNamePos == -1)
          fileNamePos = url.lastIndexOf("/");
         String fileName = url.substring(fileNamePos+1);

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        conn.getNoteTable().updateNoteSequence(enNote.getGuid(), enNote.getUpdateSequenceNum());
        List<Resource> rl = enNote.getResources();
        logger.log(logger.EXTREME, "Getting note resources");
        for (int j=0; j<enNote.getResourcesSize() && keepRunning; j++) {
          Resource newRes = rl.get(j);
          Data d = newRes.getData();
          if (d!=null) {  
            logger.log(logger.EXTREME, "Calculating resource hash");
            String hash = byteArrayToHexString(d.getBodyHash());
            logger.log(logger.EXTREME, "updating resources by hash");
            String oldGuid = conn.getNoteTable().noteResourceTable.getNoteResourceGuidByHashHex(enNote.getGuid(), hash);
            conn.getNoteTable().updateNoteResourceGuidbyHash(enNote.getGuid(), newRes.getGuid(), hash);
            resourceSignal.resourceGuidChanged.emit(enNote.getGuid(), oldGuid, newRes.getGuid());
          }

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        if (externalWindows.containsKey(r.getNoteGuid())) {
          updateResourceContentHash(externalWindows.get(r.getNoteGuid()).getBrowserWindow(), 
              r.getGuid(), oldHash, newHash);
        }
        conn.getNoteTable().updateResourceContentHash(r.getNoteGuid(), oldHash, newHash);
        Data data = r.getData();
        data.setBody(binData.toByteArray());
        data.setBodyHash(hash);
        logger.log(logger.LOW, "externalFileEdited: " +data.getSize() +" bytes");
        r.setData(data);
        conn.getNoteTable().noteResourceTable.updateNoteResource(r,true);
        
        if (r.getNoteGuid().equals(currentNoteGuid)) {
      QWebSettings.setMaximumPagesInCache(0);

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        r.setUpdateSequenceNum(0);
        r.setWidth((short) 0);
        r.setHeight((short) 0);
        r.setDuration((short) 0);
              
        Data d = new Data();
        d.setBody(fileData);
        d.setBodyIsSet(true);
        d.setBodyHash(hash);
        d.setBodyHashIsSet(true);
        r.setData(d);
        d.setSize(fileData.length);
        
        ResourceAttributes a = new ResourceAttributes();
        a.setAltitude(0);
        a.setAltitudeIsSet(false);
        a.setLongitude(0);

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    if (!binary.next()) {
      logger.log(logger.MEDIUM, "Note Resource Binary not found.");
      return null;
    }
    
    Data d = new Data();
    r.setData(d);
    d.setBody(binary.valueString(0).getBytes());
    logger.log(logger.HIGH, "Leaving DBRunner.getNoteResourceDataBodyByHash");
    return r;
  }

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      r.setHeight(new Short(query.valueString(4)));  // Height
      r.setDuration(new Short(query.valueString(5)));  // Duration
      r.setActive(new Boolean(query.valueString(6)));  // active
      r.setUpdateSequenceNum(new Integer(query.valueString(7)));  // update sequence number
      
      Data d = new Data();
      byte[] h = query.valueString(8).getBytes();    // data hash
      QByteArray hData = new QByteArray(h);
      QByteArray bData = new QByteArray(QByteArray.fromHex(hData));
      d.setBodyHash(bData.toByteArray());
      d.setSize(new Integer(query.valueString(9)));
      r.setData(d);
      
      Data rec = new Data();
      if (query.valueObject(10) != null)
        rec.setBodyHash(query.valueString(10).getBytes());   // Recognition Hash
      if (query.valueObject(11) != null)
        rec.setSize(new Integer(query.valueString(11)));
      else
        rec.setSize(0);
      r.setRecognition(rec);


      ResourceAttributes a = new ResourceAttributes();
      if (!query.valueString(12).equals(""))              // Latitude
        a.setLatitude(new Float(query.valueString(12)));

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      return null;
    }
    while (query.next()) {  
      Resource r = new Resource();    
      res.add(r);
      Data rec = new Data();
      rec.setBodyHash(query.valueString(0).getBytes());
      String x = new String(query.valueString(1));
      if (!x.equals("")) {
        rec.setSize(new Integer(x));
        rec.setBody(query.valueString(2).getBytes());
      } else
        rec.setSize(0);
      r.setRecognition(rec);
    }  
    return res;
  }

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    }
    Resource r = null;
    while (query.next()) {
                  
      r = new Resource();    
      Data rec = new Data();
      rec.setBodyHash(query.valueString(0).getBytes());
      String x = new String(query.valueString(1));
      if (!x.equals("")) {
        rec.setSize(new Integer(x));
        rec.setBody(query.valueString(2).getBytes());
      } else
        rec.setSize(0);
      r.setRecognition(rec);
      r.setNoteGuid(query.valueString(3));
    }  
    return r;
  }

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    }
    in.close();
    byte[] body = byteOut.toByteArray();


    // Create a new Data object to contain the file contents
    Data data = new Data();
    data.setSize(body.length);
    data.setBodyHash(MessageDigest.getInstance("MD5").digest(body));
    data.setBody(body);


    return data;
  }

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EDAMDemo

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