| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.nifi.processors.standard.relp; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.nifi.processors.standard.relp.frame.RELPEncoder; |
| import org.apache.nifi.processors.standard.relp.frame.RELPFrame; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.net.Socket; |
| import java.nio.charset.StandardCharsets; |
| |
| public class RELPFrameProducer { |
| |
| public static final String OPEN_FRAME_DATA = "relp_version=0\nrelp_software=librelp,1.2.7,http://librelp.adiscon.com\ncommands=syslog"; |
| |
| static final RELPFrame OPEN_FRAME = new RELPFrame.Builder() |
| .txnr(1) |
| .command("open") |
| .dataLength(OPEN_FRAME_DATA.length()) |
| .data(OPEN_FRAME_DATA.getBytes(StandardCharsets.UTF_8)) |
| .build(); |
| |
| static final RELPFrame CLOSE_FRAME = new RELPFrame.Builder() |
| .txnr(3) |
| .command("close") |
| .dataLength(0) |
| .data(new byte[0]) |
| .build(); |
| |
| public static void main(String[] args) { |
| if (args == null || args.length != 5) { |
| System.err.println("USAGE: RELPFrameProducer <HOST> <PORT> <NUM_MSGS> <DELAY_INTERVAL> <DELAY_MILLIS>"); |
| System.exit(1); |
| } |
| |
| final String host = args[0]; |
| final int port = Integer.parseInt(args[1]); |
| final int numMessages = Integer.parseInt(args[2]); |
| final int delayInterval = Integer.parseInt(args[3]); |
| final long delay = Long.parseLong(args[4]); |
| |
| final RELPEncoder encoder = new RELPEncoder(StandardCharsets.UTF_8); |
| |
| Socket socket = null; |
| try { |
| socket = new Socket(host, port); |
| |
| try (final OutputStream out = new BufferedOutputStream(socket.getOutputStream())) { |
| // send the open frame |
| out.write(encoder.encode(OPEN_FRAME)); |
| |
| // send the specified number of syslog messages |
| for (int i=2; i < (numMessages+2); i++) { |
| final byte[] data = ("this is message # " + i).getBytes(StandardCharsets.UTF_8); |
| |
| final RELPFrame syslogFrame = new RELPFrame.Builder() |
| .txnr(i) |
| .command("syslog") |
| .dataLength(data.length) |
| .data(data) |
| .build(); |
| |
| out.write(encoder.encode(syslogFrame)); |
| |
| if (i % delayInterval == 0) { |
| System.out.println("Sent " + i + " messages"); |
| out.flush(); |
| Thread.sleep(delay); |
| } |
| } |
| |
| // send the close frame |
| out.write(encoder.encode(CLOSE_FRAME)); |
| |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| } |
| |
| } catch (final IOException e) { |
| e.printStackTrace(); |
| } finally { |
| IOUtils.closeQuietly(socket); |
| } |
| } |
| |
| } |