Campbell-scientific Java PakBus Software Development Kit Bedienungsanleitung PDF herunterladen (Seite 21)

Java PakBus® Software Development Kit

network.add_station(my_cr1000);

// the file sent will be the source file for this program

my_cr1000.add_transaction(

new SendFileTran(

this,

new FileInputStream("Example.java"),

"USR:Example.java"));

// now drive the network

int active_links = 0;

complete = false;

while(!complete || active_links > 0)

{

active_links = network.check_state();

Thread.sleep(100);

}

public boolean on_progress(

SendFileTran transaction,

int bytes_to_send,

int bytes_sent)

{ return true; }

public void on_complete(

SendFileTran transaction,

int outcome) throws Exception

{

if(outcome == SendFileTran.outcome_success)

System.out.println("send file succeeded");

else

System.out.println("send file failed");

complete = true;

}

6.2 Receiving a File

A file can be retrieved from one of the datalogger file systems using the

GetFileTran class. This class starts a file receive transaction with the

datalogger and delivers fragments of the file to the application as they are

received using

GetFileClient.on_fragment(com.campbellsci.pakbus.GetFileTran, byte[]).

The following example demonstrates this process:

import com.campbellsci.pakbus.*;

import java.net.*;

import java.io.*;

class Example6_2 implements GetFileClient

{

private Network network;

private Socket socket;

private boolean complete;

private Datalogger my_cr1000;

private OutputStream output;

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