Java tutorial
/* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is part of dcm4che, an implementation of DICOM(TM) in * Java(TM), hosted at https://github.com/gunterze/dcm4che. * * The Initial Developer of the Original Code is * Agfa Healthcare. * Portions created by the Initial Developer are Copyright (C) 2012 * the Initial Developer. All Rights Reserved. * * Contributor(s): * See @authors listed below * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ package org.dcm4che.tool.hl7snd; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileDescriptor; import java.io.FileInputStream; import java.io.IOException; import java.net.Socket; import java.security.GeneralSecurityException; import java.util.List; import java.util.ResourceBundle; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.MissingOptionException; import org.apache.commons.cli.OptionBuilder; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; import org.dcm4che.hl7.MLLPConnection; import org.dcm4che.net.Connection; import org.dcm4che.net.Device; import org.dcm4che.net.IncompatibleConnectionException; import org.dcm4che.tool.common.CLIUtils; import org.dcm4che.util.SafeClose; import org.dcm4che.util.StreamUtils; import org.dcm4che.util.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * @author Gunter Zeilinger <gunterze@gmail.com> * */ public class HL7Snd extends Device { private static ResourceBundle rb = ResourceBundle.getBundle("hl7messages"); private static final Logger log = LoggerFactory.getLogger(HL7Snd.class); private final Connection conn = new Connection(); private final Connection remote = new Connection(); private Socket sock; private MLLPConnection mllp; public HL7Snd() throws IOException { super("hl7snd"); addConnection(conn); } private static CommandLine parseComandLine(String[] args) throws ParseException { Options opts = new Options(); addConnectOption(opts); addBindOption(opts); CLIUtils.addResponseTimeoutOption(opts); CLIUtils.addSocketOptions(opts); CLIUtils.addTLSOptions(opts); CLIUtils.addCommonOptions(opts); return CLIUtils.parseComandLine(args, opts, rb, HL7Snd.class); } @SuppressWarnings("static-access") private static void addConnectOption(Options opts) { opts.addOption(OptionBuilder.hasArg().withArgName("host:port").withDescription(rb.getString("connect")) .withLongOpt("connect").create("c")); CLIUtils.addConnectTimeoutOption(opts); } @SuppressWarnings("static-access") private static void addBindOption(Options opts) { opts.addOption(OptionBuilder.hasArg().withArgName("ip").withDescription(rb.getString("bind")) .withLongOpt("bind").create("b")); } private static void configureConnect(Connection conn, CommandLine cl) throws MissingOptionException, ParseException { if (!cl.hasOption("c")) throw new MissingOptionException(CLIUtils.rb.getString("missing-connect-opt")); String[] hostPort = StringUtils.split(cl.getOptionValue("c"), ':'); if (hostPort.length != 2) throw new ParseException(CLIUtils.rb.getString("invalid-connect-opt")); conn.setHostname(hostPort[0]); conn.setPort(Integer.parseInt(hostPort[1])); } private static void configureBind(Connection conn, CommandLine cl) { if (cl.hasOption("b")) conn.setHostname(cl.getOptionValue("b")); } @SuppressWarnings("unchecked") public static int main(String[] args) { int result = -1; try { CommandLine cl = parseComandLine(args); HL7Snd main = new HL7Snd(); configureConnect(main.remote, cl); configureBind(main.conn, cl); CLIUtils.configure(main.conn, cl); main.remote.setTlsProtocols(main.conn.getTlsProtocols()); main.remote.setTlsCipherSuites(main.conn.getTlsCipherSuites()); try { main.open(); // main.sendFiles(cl.getArgList()); main.sendHL7Message(cl.getArgList()); log.info("Order sent successfully."); result = 1; } finally { main.close(); } } catch (ParseException e) { log.error("hl7snd: " + e.getMessage()); log.error(rb.getString("try")); result = 0; // System.exit(2); } catch (Exception e) { log.error("hl7snd: " + e.getMessage()); log.error("Stack Trace :", e); result = 0; // System.exit(2); } return result; } public void open() throws IOException, IncompatibleConnectionException, GeneralSecurityException { sock = conn.connect(remote); sock.setSoTimeout(conn.getResponseTimeout()); mllp = new MLLPConnection(sock); } public void close() { conn.close(sock); } // public void sendFiles(List<String> pathnames) throws IOException { // // for (String pathname : pathnames) { // mllp.writeMessage(readFile(pathname)); // if (mllp.readMessage() == null) // throw new IOException("Connection closed by receiver"); // } // } public void sendHL7Message(List<String> hl7blob) throws IOException { mllp.writeMessage(hl7blob.get(0).getBytes()); if (mllp.readMessage() == null) throw new IOException("Connection closed by receiver"); } private byte[] readFile(String pathname) throws IOException { FileInputStream in = null; try { if (pathname.equals("-")) { in = new FileInputStream(FileDescriptor.in); ByteArrayOutputStream buf = new ByteArrayOutputStream(); StreamUtils.copy(in, buf); return buf.toByteArray(); } else { File f = new File(pathname); in = new FileInputStream(f); byte[] b = new byte[(int) f.length()]; StreamUtils.readFully(in, b, 0, b.length); return b; } } finally { SafeClose.close(in); } } }