| /* |
| * 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.camel.component.hl7; |
| |
| import java.io.BufferedInputStream; |
| import java.io.BufferedOutputStream; |
| import java.io.DataInputStream; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.net.Socket; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| import ca.uhn.hl7v2.model.Message; |
| import org.apache.camel.BindToRegistry; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.junit.Test; |
| |
| /** |
| * Unit test for the HL7MLLP Codec. |
| */ |
| public class HL7MLLPCodecMessageFloodingTest extends HL7TestSupport { |
| |
| @BindToRegistry("hl7codec") |
| public HL7MLLPCodec addHl7MllpCodec() throws Exception { |
| HL7MLLPCodec codec = new HL7MLLPCodec(); |
| codec.setCharset("ISO-8859-1"); |
| codec.setConvertLFtoCR(false); |
| return codec; |
| } |
| |
| @Override |
| protected RouteBuilder createRouteBuilder() throws Exception { |
| return new RouteBuilder() { |
| public void configure() throws Exception { |
| from("mina:tcp://127.0.0.1:" + getPort() + "?sync=true&codec=#hl7codec").unmarshal().hl7().process(new Processor() { |
| public void process(Exchange exchange) throws Exception { |
| Message input = exchange.getIn().getBody(Message.class); |
| Message response = input.generateACK(); |
| exchange.getOut().setBody(response); |
| Thread.sleep(50); // simulate some processing time |
| } |
| }).to("mock:result"); |
| } |
| }; |
| } |
| |
| @Test |
| public void testHL7MessageFlood() throws Exception { |
| |
| // Write and receive using plain sockets and in different threads |
| Socket socket = new Socket("localhost", getPort()); |
| BufferedOutputStream outputStream = new BufferedOutputStream(new DataOutputStream(socket.getOutputStream())); |
| final BufferedInputStream inputStream = new BufferedInputStream(new DataInputStream(socket.getInputStream())); |
| |
| int messageCount = 100; |
| CountDownLatch latch = new CountDownLatch(messageCount); |
| |
| Thread t = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| int response; |
| StringBuilder s = new StringBuilder(); |
| try { |
| int i = 0; |
| boolean cont = true; |
| while (cont && (response = inputStream.read()) >= 0) { |
| if (response == 28) { |
| response = inputStream.read(); // read second end |
| // byte |
| if (response == 13) { |
| // Responses must arrive in same order |
| cont = s.toString().contains(String.format("X%dX", i++)); |
| s.setLength(0); |
| latch.countDown(); |
| } |
| } else { |
| s.append((char)response); |
| } |
| } |
| } catch (IOException ignored) { |
| } |
| } |
| }); |
| t.start(); |
| |
| String in = "MSH|^~\\&|MYSENDER|MYRECEIVER|MYAPPLICATION||200612211200||QRY^A19|X%dX|P|2.4\r" + "QRD|200612211200|R|I|GetPatient|||1^RD|0101701234|DEM||"; |
| for (int i = 0; i < messageCount; i++) { |
| String msg = String.format(in, i); |
| outputStream.write(11); |
| outputStream.flush(); |
| // Some systems send end bytes in a separate frame |
| // Thread.sleep(10); |
| outputStream.write(msg.getBytes()); |
| outputStream.flush(); |
| // Some systems send end bytes in a separate frame |
| // Thread.sleep(10); |
| outputStream.write(28); |
| outputStream.write(13); |
| outputStream.flush(); |
| // Potentially wait after message |
| // Thread.sleep(10); |
| } |
| |
| boolean success = latch.await(20, TimeUnit.SECONDS); |
| |
| outputStream.close(); |
| inputStream.close(); |
| socket.close(); |
| |
| assertTrue(success); |
| } |
| |
| } |