Read data from R/3 to Legacy system
hi
1. Does SAP store its master data in logical databases?
2. Where can i find Bapi's to read data (master data )from R/3 into legacy system?
3. Which is better - Bapi or Idoc?
Thanks.
Points will be awarded.
U need the 2 technologies ( BAPI ( interfaces inbound/outbound) + IDOC ( files data transfer )
Instead of Idoc, you can also built your own extract ABAP in specific files
Take a look at the 'BAPI' txn
Hope this helps,
Erwan
Similar Messages
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Read data from SAP R/3 Class-System
Hello,
first of all sorry when I posted this into the wrong subforum, but I wasn't sure about that. My Question is how to read data from the Classystem I have specified in my ABAP report.
The goal is to read data from my individual class-system as well as data from MM and write them to a table that is to be read by another report. But right now I can't find information about the class system and abap. Maybe you know some tutorials or blogs about right that topic you can suggest?What class system have you specified in your report?
Normally a class can be used by declaring a variable of type of the class in question, if this class can be instantiated this is. If your class can't be instantiated, but it has only class methods, you can call this method directly.
But there is a lot more to this ABAP Object Oriented Programming, than just this short explanation. Search on SDN for some ABAP OO Tutorials.
some links:
http://help.sap.com/saphelp_nw2004s/helpdata/en/c3/225b5654f411d194a60000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b6cae890-0201-0010-ef8b-f970a9c41d47
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/1591ec90-0201-0010-3ba8-cdcd500b17cf
Transacation ABAPDOCU. -
Uploading data from a view in legacy system to SAP
Hi,
I am developing a custom table in sap. The data in this table will be loaded from a view which exists in the clients legacy system (Oracle db).There will be no middleware for the data transfer.
How can this be done in SAP? Can anybody provide a detailed procedure to do this?
Thanks in advance !!!!Hi
Is the Legacy system capable of calling 'BAPI' or 'RFC'.
If yes, than you can create a RFC function module and with in the function module, you can write code to populate values to ZTABLE.
When the Legacy system calls the RFC with values, your Ztable will be updated
Regards
Madhan -
Inbound idoc creation by reading data from flat file in same system
Hi..
I have a flat file on my application server. I know the idoc type , message type and the FM to post the application document in SAP at the end when an idoc is created.
Can someone tell me how do i create an idoc in sap reading the flat file data on application server and what setting do i need to make later once idoc is created to post the application document using hte existing FM.
Appreciate your helpYou need to use FM <b>MASTER_IDOC_DISTRIBUTE</b>
REG_CONTROL-MESTYP = 'ISU_MR_UPLOAD'.
REG_CONTROL-IDOCTP = 'ISU_MR_UPLOAD01'.
REG_CONTROL-RCVPRT = 'LS'.
REG_CONTROL-RCVPRN = 'ZALE'.
LOOP AT TABLE_LECTURA.
ZMENSAJE-MRIDNUMBER = TABLE_LECTURA-NUMORDEN.
ZMENSAJE-METERREADER = TABLE_LECTURA-IDLECTURISTA.
IF TABLE_LECTURA-PRIMERVOLUMEN NE SPACE.
VOLUMEN = TABLE_LECTURA-PRIMERVOLUMEN.
ELSEIF TABLE_LECTURA-PRIMERVOLUMEN NE SPACE.
VOLUMEN = TABLE_LECTURA-SEGUNDOVOLUMEN.
ELSE.
VOLUMEN = TABLE_LECTURA-TERCERVOLUMEN.
ENDIF.
IF VOLUMEN EQ SPACE.
VOLUMEN = '0'.
ENDIF.
ZMENSAJE-READINGRESULT = VOLUMEN.
ZMENSAJE-MRREASON = TABLE_LECTURA-NOTALECTURA.
ZMENSAJE-ACTUALMRTIME = TABLE_LECTURA-HORALECTURA.
ZMENSAJE-ACTUALMRDATE = TABLE_LECTURA-FECHALECTURA.
I_EDIDD-SEGNAM = 'E1BPEABLU'.
I_EDIDD-SDATA = ZMENSAJE.
APPEND I_EDIDD.
ENDLOOP.
CALL FUNCTION 'MASTER_IDOC_DISTRIBUTE'
EXPORTING
MASTER_IDOC_CONTROL = REG_CONTROL
TABLES
COMMUNICATION_IDOC_CONTROL = I_COMM_IDOCS
MASTER_IDOC_DATA = I_EDIDD
EXCEPTIONS
ERROR_IN_IDOC_CONTROL = 1
ERROR_WRITING_IDOC_STATUS = 2
ERROR_IN_IDOC_DATA = 3
SENDING_LOGICAL_SYSTEM_UNKNOWN = 4
OTHERS = 5.
Greetings,
Blag. -
Error reading data from the MS Dos Console.
Hi,
We have a legacy application which is launched via a 3rd-party Telnet Server - the app acts as a remote shell for an RF device. The system has been functioning for many years but now we have migrated to Server 2012 the system no longer launches.
The RF device successfully connects to the telnet server, logs-in with embedded credentails but drops the connection when the shell application is launched.
The server has the following Application error
Error reading data from the MS Dos Console.
The pipe has been ended. 109 (0x6d)
The application can successfully be launched locally outside of the shell on the server. The error is reproducable across RF devices and desktop telnet connections.
The firewalls are off.
Are there some additional protections in Server 2012 which would cause the pipe-based link to be stopped when launching the exe? Am I missing something? The 3rd-party telnet server is certified for Server 2012.
Thnak youI'd ask in the
Windows Server General Forum, or ask the third party vendor.
Karl
When you see answers and helpful posts, please click Vote As Helpful, Propose As Answer, and/or Mark As Answer
My Blog: http://unlockpowershell.wordpress.com
My Book:
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My E-mail: -join ("6B61726C6D69747363686B65406D742E6E6574"-split"(?<=\G.{2})",19|%{[char][int]"0x$_"}) -
Hi Everybody,
i'm playing a little bit with Windows Azure and I'm blocked with a really simple issue (or maybe not).
I've created a Cloud Service containing one simple Worker Role. I've configured an EndPoint in the WorkerRole configuration, which allows Input connections via tcp on port 10100.
Here the ServiceDefinition.csdef file content:
<?xml version="1.0" encoding="utf-8"?>
<ServiceDefinition name="EmacCloudService" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceDefinition" schemaVersion="2014-01.2.3">
<WorkerRole name="TcpListenerWorkerRole" vmsize="Small">
<Imports>
<Import moduleName="Diagnostics" />
<Import moduleName="RemoteAccess" />
<Import moduleName="RemoteForwarder" />
</Imports>
<Endpoints>
<InputEndpoint name="Endpoint1" protocol="tcp" port="10100" />
</Endpoints>
</WorkerRole>
</ServiceDefinition>
This WorkerRole is just creating a TcpListener object listening to the configured port (using the RoleEnvironment instance) and waits for an incoming connection. It receives a message and returns a hardcoded message (see code snippet below).
namespace TcpListenerWorkerRole
using System;
using System.Net;
using Microsoft.WindowsAzure.ServiceRuntime;
using System.Net.Sockets;
using System.Text;
using Roche.Emac.Infrastructure;
using System.IO;
using System.Threading.Tasks;
using Microsoft.WindowsAzure.Diagnostics;
using System.Linq;
public class WorkerRole : RoleEntryPoint
public override void Run()
// This is a sample worker implementation. Replace with your logic.
LoggingProvider.Logger.Info("TcpListenerWorkerRole entry point called");
TcpListener listener = null;
try
listener = new TcpListener(RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["Endpoint1"].IPEndpoint);
listener.ExclusiveAddressUse = false;
listener.Start();
LoggingProvider.Logger.Info(string.Format("TcpListener started at '{0}:{1}'", RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["Endpoint1"].IPEndpoint.Address, RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["Endpoint1"].IPEndpoint.Port));
catch (SocketException ex)
LoggingProvider.Logger.Exception("Unexpected exception while creating the TcpListener", ex);
return;
while (true)
Task.Run(async () =>
TcpClient client = await listener.AcceptTcpClientAsync();
LoggingProvider.Logger.Info(string.Format("Client connected. Address='{0}'", client.Client.RemoteEndPoint.ToString()));
NetworkStream networkStream = client.GetStream();
StreamReader reader = new StreamReader(networkStream);
StreamWriter writer = new StreamWriter(networkStream);
writer.AutoFlush = true;
string input = string.Empty;
while (true)
try
char[] receivedChars = new char[client.ReceiveBufferSize];
LoggingProvider.Logger.Info("Buffer size: " + client.ReceiveBufferSize);
int readedChars = reader.Read(receivedChars, 0, client.ReceiveBufferSize);
char[] validChars = new char[readedChars];
Array.ConstrainedCopy(receivedChars, 0, validChars, 0, readedChars);
input = new string(validChars);
LoggingProvider.Logger.Info("This is what the host sent to you: " + input+". Readed chars=" + readedChars);
try
string orderResultFormat = Encoding.ASCII.GetString(Encoding.ASCII.GetBytes("\xB")) + @"MSH|^~\&|Instrument|Laboratory|LIS|LIS Facility|20120427123212+0100||ORL^O34^ORL_O34| 11|P|2.5.1||||||UNICODE UTF-8|||LAB-28^IHE" + Environment.NewLine + "MSA|AA|10" + Environment.NewLine + @"PID|||patientId||""""||19700101|M" + Environment.NewLine + "SPM|1|sampleId&ROCHE||ORH^^HL70487|||||||P^^HL70369" + Environment.NewLine + "SAC|||sampleId" + Environment.NewLine + "ORC|OK|orderId|||SC||||20120427123212" + Encoding.ASCII.GetString(Encoding.ASCII.GetBytes("\x1c\x0d"));
writer.Write(orderResultFormat);
catch (Exception e)
LoggingProvider.Logger.Exception("Unexpected exception while writting the response", e);
client.Close();
break;
catch (Exception ex)
LoggingProvider.Logger.Exception("Unexpected exception while Reading the request", ex);
client.Close();
break;
}).Wait();
public override bool OnStart()
// Set the maximum number of concurrent connections
ServicePointManager.DefaultConnectionLimit = 12;
DiagnosticMonitor.Start("Microsoft.WindowsAzure.Plugins.Diagnostics.ConnectionString");
RoleEnvironment.Changing += RoleEnvironment_Changing;
return base.OnStart();
private void RoleEnvironment_Changing(object sender, RoleEnvironmentChangingEventArgs e)
// If a configuration setting is changing
LoggingProvider.Logger.Info("RoleEnvironment is changing....");
if (e.Changes.Any(change => change is RoleEnvironmentConfigurationSettingChange))
// Set e.Cancel to true to restart this role instance
e.Cancel = true;
As you can see, nothing special is being done. I've used the RoleEnvironment.CurrentRoleInstance.InstanceEndpoints to retrieve the current IPEndpoint.
Running the Cloud Service in the Windows Azure Compute Emulator everything works fine, but when I deploy it in Azure, then I receive the following Exception:
2014-08-06 14:55:23,816 [Role Start Thread] INFO EMAC Log - TcpListenerWorkerRole entry point called
2014-08-06 14:55:24,145 [Role Start Thread] INFO EMAC Log - TcpListener started at '100.74.10.55:10100'
2014-08-06 15:06:19,375 [9] INFO EMAC Log - Client connected. Address='196.3.50.254:51934'
2014-08-06 15:06:19,375 [9] INFO EMAC Log - Buffer size: 65536
2014-08-06 15:06:45,491 [9] FATAL EMAC Log - Unexpected exception while Reading the request
System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
--- End of inner exception stack trace ---
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at System.IO.StreamReader.ReadBuffer(Char[] userBuffer, Int32 userOffset, Int32 desiredChars, Boolean& readToUserBuffer)
at System.IO.StreamReader.Read(Char[] buffer, Int32 index, Int32 count)
at TcpListenerWorkerRole.WorkerRole.<>c__DisplayClass0.<<Run>b__2>d__0.MoveNext() in C:\Work\Own projects\EMAC\AzureCloudEmac\TcpListenerWorkerRole\WorkerRole.cs:line 60
I've already tried to configure an internal port in the ServiceDefinition.csdef file, but I get the same exception there.
As you can see, the client can connect to the service (the log shows the message: Client connected with the address) but when it tries to read the bytes from the stream, it throws the exception.
For me it seems like Azure is preventing the retrieval of the message. I've tried to disable the Firewall in the VM in Azure and the same continues happening.
I'm using Windows Azure SDK 2.3
Any help will be very very welcome!
Thanks in advance!
Javier
En caso de que la respuesta te sirva, porfavor, márcala como válida
Muchas gracias y suerte!
Javier Jiménez Roda
Blog: http://jimenezroda.wordpress.comhi Javier,
I changed your code like this:
private AutoResetEvent connectionWaitHandle = new AutoResetEvent(false);
public override void Run()
TcpListener listener = null;
try
listener = new TcpListener(
RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["Endpoint"].IPEndpoint);
listener.ExclusiveAddressUse = false;
listener.Start();
catch (SocketException se)
return;
while (true)
IAsyncResult result = listener.BeginAcceptTcpClient(HandleAsyncConnection, listener);
connectionWaitHandle.WaitOne();
The HandleAsync method is your "While (true)" code:
private void HandleAsyncConnection(IAsyncResult result)
TcpListener listener = (TcpListener)result.AsyncState;
TcpClient client = listener.EndAcceptTcpClient(result);
connectionWaitHandle.Set();
NetworkStream netStream = client.GetStream();
StreamReader reader = new StreamReader(netStream);
StreamWriter writer = new StreamWriter(netStream);
writer.AutoFlush = true;
string input = string.Empty;
try
char[] receivedChars = new char[client.ReceiveBufferSize];
// LoggingProvider.Logger.Info("Buffer size: " + client.ReceiveBufferSize);
int readedChars = reader.Read(receivedChars, 0, client.ReceiveBufferSize);
char[] validChars = new char[readedChars];
Array.ConstrainedCopy(receivedChars, 0, validChars, 0, readedChars);
input = new string(validChars);
// LoggingProvider.Logger.Info("This is what the host sent to you: " + input + ". Readed chars=" + readedChars);
try
string orderResultFormat = Encoding.ASCII.GetString(Encoding.ASCII.GetBytes("\xB")) + @"MSH|^~\&|Instrument|Laboratory|LIS|LIS Facility|20120427123212+0100||ORL^O34^ORL_O34| 11|P|2.5.1||||||UNICODE UTF-8|||LAB-28^IHE" + Environment.NewLine + "MSA|AA|10" + Environment.NewLine + @"PID|||patientId||""""||19700101|M" + Environment.NewLine + "SPM|1|sampleId&ROCHE||ORH^^HL70487|||||||P^^HL70369" + Environment.NewLine + "SAC|||sampleId" + Environment.NewLine + "ORC|OK|orderId|||SC||||20120427123212" + Encoding.ASCII.GetString(Encoding.ASCII.GetBytes("\x1c\x0d"));
writer.Write(orderResultFormat);
catch (Exception e)
// LoggingProvider.Logger.Exception("Unexpected exception while writting the response", e);
client.Close();
catch (Exception ex)
//LoggingProvider.Logger.Exception("Unexpected exception while Reading the request", ex);
client.Close();
Please try it. For this error message, I suggest you could refer to this thread (http://stackoverflow.com/questions/6173763/using-windows-azure-to-use-as-a-tcp-server
) and this post (http://stackoverflow.com/a/5420788).
Regards,
Will
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How do I read data from a DMM or DC Power Supply at a specified rate?
I have a PXI system with 4071 DMMs and 4110 DC Power Supplies. I want to be able to measure the power consumption of my DUT as it performs various operations. This is what my process flow looks like:
1. Configure DMM and Power Supply
2. Wait for DUT to go into a certain mode
3. Start Acquiring data from DMM and PS.
4. Wait for DUT to get out of this mode
5. Stop Acquiring data from DMM and PS.
Since the duration of step #4 is uncertain, I cannot tell the units to collect a predetermined number of samples and give it back to me. Instead I have to take readings as long as it's required.
I'm attaching screenshots of my setup and read process. The reading is done inside a timed loop which is running at 1kHz.
The problem is that using niDMM Read Multi-Point or niDCPower Measure Multiple takes 5-9ms before I get a reading, so I'm not really getting 1ms resolution in my data. I'm sure there are other folks who have had the need to read data from these devices with better time-resolution, so if anyone can point me in the correct direction, it would be great. I'm pretty sure I'm not doing the correct thing here.
Attachments:
1-Setup.PNG 12 KB
2-Read.PNG 9 KBWhat is really confusing to me is why you are even using the multi-point function when you set the sample count to 1. If you want multiple points, request multiple samples and let the DMM acquire them at a rate you specify. If you want a single sample, use the normal Read. You also need to pay attention to how fast the DMM can acquire. If you want the fastest sample rates, you might be a lot better off with a DAQ board.
-
Hi experts, how to use open sql to read data from one " maintenance view"?
i want to use this part of data within report ,so how to use open sql statement to read data from one " maintenance view"?
Hi
You can't use OPEN SQl statements to fetch data from maintenance view
You have to use only Database views
see the different types of views and the difference
The followings are different types of views:
- Database View (SE11)
Database views are implement an inner join, that is, only records of the primary table (selected via the join operation) for which the corresponding records of the secondary tables also exist are fetched. Inconsistencies between primary and secondary table could, therefore, lead to a reduced selection set.
In database views, the join conditions can be formulated using equality relationships between any base fields. In the other types of view, they must be taken from existing foreign keys. That is, tables can only be collected in a maintenance or help view if they are linked to one another via foreign keys.
- Help View ( SE54)
Help views are used to output additional information when the online help system is called.
When the F4 button is pressed for a screen field, a check is first made on whether a matchcode is defined for this field. If this is not the case, the help view is displayed in which the check table of the field is the primary table. Thus, for each table no more than one help view can be created, that is, a table can only be primary table in at most one help view.
- Projection View
Projection views are used to suppress or mask certain fields in a table (projection), thus minimizing the number of interfaces. This means that only the data that is actually required is exchanged when the database is accessed.
A projection view can draw upon only one table. Selection conditions cannot be specified for projection views.
- Maintenance View ( SE54 )
Maintenance views enable a business-oriented approach to looking at data, while at the same time, making it possible to maintain the data involved. Data from several tables can be summarized in a maintenance view and maintained collectively via this view. That is, the data is entered via the view and then distributed to the underlying tables by the system.
Please have a look at below link. It will help you.
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ed06446011d189700000e8322d00/frameset.htm
for more detailed info look on:
http://www.sap-img.com/abap/what-is-the-different-types-and-usage-of-views.htm
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/home/abap+dictionary&
Reward points for useful Answers
Regards
Anji -
Possible to read data from a web browser into java?
Is it possible to read data from a web browser such as IE or Mozilla into a java applet for use and manipulation? If it is, could someone please post some documentation I could look at or a snip-it of code I could use? Thanks.
This will read the content from a site:
import java.net.*;
import java.io.*;
class Test {
public static void main(String[] argv) throws Exception {
URL u = new URL("http://www.google.com");
URLConnection uc = u.openConnection();
BufferedReader br = new BufferedReader(new InputStreamReader(uc.getInputStream()));
String text;
while( (text = br.readLine()) != null ) {
System.out.println(text);
} -
Read data from a sequential file to fill an arrray
I am trying to read data from a sequential file to fill an array and then use the array for calculations. I believe my program is reading the file; however when I try to use the data for calculations the results show up as boxes rather than numbers. Can someone please take a look and give me some insight into where I am going wrong. The sequential file has the following data:
5.0
5.35
5.5
5.75
Here is my code from that portion of the program. I can send the entire program if necessary.
private void calcResults(TextArea loanResults, double amount, double interest, int term ) throws IOException {
DecimalFormat df = new DecimalFormat("$###,###.00");
NumberFormat formats = new DecimalFormat("#0.00");
StringBuffer buffer=new StringBuffer();
loanResults.append("Month No.\tMonthly Payment\t\tInterest\t\tBalance\n");
double monthlyPay = amount*Math.pow(1+interest,term)*interest/(Math.pow(1+interest,term)-1);
monthlyPayment.setText("" + (formats.format(monthlyPay)));
double principal= amount;
* Loop through each month of a given loan
int month;
for (int i=0; i<term; i++)
try {
int j = 0;
BufferedReader in = new BufferedReader(new FileReader("rates.txt"));
String temp = "";
while((temp = in.readLine()) != null) {
j++;
strRate[j] = temp;
RateValue1 = Double.parseDouble(loanAmountTxFld.getText());
in.close();
catch (FileNotFoundException e) {
System.out.println("Can't find file rate.txt!");
return;
month= i+1;
double rate =principal*interest;
double balance=principal+rate-monthlyPay;
loanResults.append((month) + "\t\t" + (formats.format(principal) + "\t\t" + (formats.format(rate) + "\t\t"
+ (formats.format(balance) + "\n"))));
principal=balance;
GraphArea.append(formats.format(balance) + "\n");
*Method for determining which loan option was chosen
private void calc() throws IOException{
String interestTerms = (String) cOption.getSelectedItem();
if (interestTerms.equalsIgnoreCase("5 yrs at 5.00"))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), 0.05/12, 60);
else if (interestTerms.equalsIgnoreCase("7 yrs at 5.35"))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), RateValue1/12, 84);
else if (interestTerms.equalsIgnoreCase("15 yrs at 5.50"))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), 0.0550/12, 180);
else if (interestTerms.equalsIgnoreCase("30 yrs at 5.75"))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), 0.0575/12, 360);
else if (interestTerms.equalsIgnoreCase(" "))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), Double.parseDouble(loanInterestTxFld.getText())/100/12,Integer.parseInt(loanTermTxFld.getText())*12);
}ok, I fixed my program per your suggestion and I still cannot get it to work. I get the same result where the ouput is just a bunch of boxes. I also tried to print to see what I am getting and all I see is the values of the array [5.0,5.35,5.5,5.75] but I cannot seem to pass that to the calculations. I wish I could figure this out. Does anybody have any suggestions as to what I am doing wrong. This is the portion of my code that I am having issues with:
private void calcResults(TextArea loanResults, double amount,double interest, int term ) throws IOException {
DecimalFormat df = new DecimalFormat("$###,###.00");
NumberFormat formats = new DecimalFormat("#0.00");
StringBuffer buffer=new StringBuffer();
loanResults.append("Month No.\tMonthly Payment\t\tInterest\t\tBalance\n");
double monthlyPay = amount*Math.pow(1+interest,term)*interest/(Math.pow(1+interest,term)-1);
monthlyPayment.setText("" + (formats.format(monthlyPay)));
double principal= amount;
* Loop through each month of a given loan
int month;
for (int i=0; i<term; i++)
month= i+1;
double rate =principal*interest;
double balance=principal+rate-monthlyPay;
loanResults.append((month) + "\t\t" + (formats.format(principal) + "\t\t" + (formats.format(rate) + "\t\t"
+ (formats.format(balance) + "\n"))));
principal=balance;
GraphArea.append(formats.format(balance) + "\n");
private void readFile() throws IOException
try {
int j = 0;
BufferedReader in = new BufferedReader(new FileReader("rates.txt"));
String temp = "";
while((temp = in.readLine()) != null) {
strRate[j] = temp;
j++;
RateValue1 = Double.valueOf(((String)(strRate[1]))
).doubleValue();
// RateValue1 = Double.parseDouble(loanAmountTxFld.getText());
in.close();
catch (FileNotFoundException e) {
System.out.println("Can't find file rates.txt!");
return;
*Method for determining which loan option was chosen
private void calc() throws IOException{
String interestTerms = (String) cOption.getSelectedItem();
if (interestTerms.equalsIgnoreCase("5 yrs at 5.00"))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), 0.05/12, 60);
else if (interestTerms.equalsIgnoreCase("7 yrs at 5.35"))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), RateValue1/12, 84);
else if (interestTerms.equalsIgnoreCase("15 yrs at 5.50"))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), 0.0550/12, 180);
else if (interestTerms.equalsIgnoreCase("30 yrs at 5.75"))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), 0.0575/12, 360);
else if (interestTerms.equalsIgnoreCase(" "))
calcResults(loanResults, Double.parseDouble(loanAmountTxFld.getText()), Double.parseDouble(loanInterestTxFld.getText())/100/12,Integer.parseInt(loanTermTxFld.getText())*12);
} -
Table unable to read data from CSV file
Dear All,
I have created a table which have to read data from external CSV file. The table is giving error if the file is not there at the specified location,but when i put the file at that location there is no error but no rows are returned.
Please suggest what should i do???
Thanks in advance.No version.
No operating system information.
No DDL.
No help is possible.
I want to drive home the point here to the many people that write posts similar to yours.
"My car won't start please tell me why" is insuffiicent information. Perhaps it is out of gas. Perhaps the battery is dead. Perhaps you didn't turn the key in the ignition. -
Read data from 3 arduino analog pins
Hi,
My name is Jack. I have a question about how to read multiply data from arduino analog inputs in labview. I have tried to read data from 2 pins by using same way (continuous analog samples) and the system works well. However, I failed in reading data from one more pin, no matter I used the same way as to read continuous analog samples or the method to read analog voltage.
My idea is to read battery voltage from pin 0, and the transducer voltages from pin 1 and pin 2 and convert them to currents. Pin 1 and Pin 2's signals work well, but pin 0 does not that good.
Another question is that how to plot data of pin 1 and pin 2 into one waveform chart. I have tried to bundle the two arrays; it didn't work, however.
Attached is my VI. Thanks for help.
Attachments:
final final project.vi 747 KBThis article presents a procedure for reading the analog ports of Arduino UNO R3 board , on which a Joystick shield was installed. The analog data are related to the position of command and can be monitored from the front panel of our program , for which we use serial communication.
https://decibel.ni.com/content/docs/DOC-33281
Atom
Certified LabVIEW Associate Developer
Attachments:
analog_JOYSTICK_ARDUINO.zip 1 KB
cmd arduino JOYSTICK.vi 65 KB -
How to read data from FESTO MPS work-station using easyport in Labview ?
Hello!
I am working on a festo MPS PA compact workstation and I have connected the system to the PC using the EasyPort.
So far, I can send commands to the system to turn on some components like Pump, Heater, Pressure Valve. But the problem is that I could not read the data from the sensors at the system like the tank level and the temperature of the water.
attached is the vi file for what I have done so far
I would really appreciate your help!!
Thank you in advance
Attachments:
EasyPort1.vi 19 KBcise438,
thanks for the forum post. Are you not able to read any values? or are you getting incorrect values? Are the reads from the sensors digital reads or analog reads?
Applications/Systems/Test
National Instruments | AWR Group -
Reading data from input stream on unix
I have a program that reads data from input stream from the socket. If the data is over 1500 bytes it is sent in multiple TCP packets. Whats weird is, if I run the program in windows environment it waits till it receives all the packets but when I run the same program in unix environment it only reads the first packet and go further without waiting for all the TCP packets!!
The line that reads from input stream is
datalen = inStr.read(byteBuffer);is there anyway I can make it wait till it receives all the packets on unix system? I do not understand why it works fine for windows in this case but not for unix.
I'll appreciate any help..
ThanksTry using a DataInputStream with the readfully() method.
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Hi Guys,
I am trying to read data from a CSV file character by character. Whats the best way to do this? Any examples around?
Thanks
tzafDoes this mean your file will have multiple lines? And each line would indicate a new record? If so, you should use the BufferedReader and take in each line as a String. Then you can use the StringTokenizer to separate your string into tokens using the comma as your delimiter. From there you can convert the string tokens into whatever form you like, but by default they are already in String form. To make it an Integer I'd use Integer.parseInt().
I will show you some code on how to get the values from your file using the BufferedReader and the StringTokenizer but what you do with those values afterwards I'm going to leave up to you.
File csvfile = new File("myfile.csv");
byte[] fileBuf = new byte[1024]; // buffer for file data
int bytesRead = 0; // number of bytes read
try
BufferedReader fileIn = new BufferedReader( new FileReader( csvfile ));
PrintStream out = new PrintStream( System.out );
String readLine; // stores a line from the file as a string
while( (readLine = fileIn.readLine()) != null )
StringTokenizer tokens = new StringTokenizer( readLine, ",", false);
// false means you don't want to count the commas, only the values
while( tokens.hasMoreTokens() )
String aValue = tokens.nextToken();
// ... do what you want with the value
// ... change to Integer or whatever
out.println(aValue); // Printing the value to the screen
fileIn.close();
}Good luck,
.kim
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