| | |
| | | /* |
| | | * Copyright 2011-17 Fraunhofer ISE, energy & meteo Systems GmbH and other contributors |
| | | * |
| | | * Licensed 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.openmuc.jositransport; |
| | | |
| | | import java.io.IOException; |
| | | import java.net.InetAddress; |
| | | |
| | | import javax.net.ServerSocketFactory; |
| | | |
| | | /** |
| | | * This class implements the server Transport Service Access Point (TSAP) over TCP/IP as defined in RFC 1006, ISO 8072, |
| | | * and ISO 8073. It can be used to listen for incoming TConnections. |
| | | * |
| | | */ |
| | | public class ServerTSap { |
| | | |
| | | private ServerThread serverThread; |
| | | |
| | | private final int port; |
| | | private final InetAddress bindAddr; |
| | | private final int backlog; |
| | | private final TConnectionListener connectionListener; |
| | | private final ServerSocketFactory serverSocketFactory; |
| | | |
| | | private boolean started = false; |
| | | private int maxTPDUSizeParam = 16; |
| | | private int maxConnections = 100; |
| | | private int messageTimeout = 0; |
| | | private int messageFragmentTimeout = 60000; |
| | | |
| | | /** |
| | | * Use this constructor to create a server TSAP that can listen on a port. |
| | | * |
| | | * @param port |
| | | * the TCP port that the ServerSocket will connect to. Should be between 1 and 65535. |
| | | * @param conListener |
| | | * the ConnectionListener that will be notified when remote TSAPs are connecting or the server stopped |
| | | * listening. |
| | | */ |
| | | public ServerTSap(int port, TConnectionListener conListener) { |
| | | this(port, 0, null, conListener, ServerSocketFactory.getDefault()); |
| | | } |
| | | |
| | | /** |
| | | * Use this constructor to create a server TSAP that can listen on a port. |
| | | * |
| | | * @param port |
| | | * the TCP port that the ServerSocket will connect to. Should be between 1 and 65535. |
| | | * @param conListener |
| | | * the ConnectionListener that will be notified when remote TSAPs are connecting or the server stopped |
| | | * listening. |
| | | * @param backlog |
| | | * is passed to the java.net.ServerSocket |
| | | * @param bindAddr |
| | | * the IP address to bind to. It is passed to java.net.ServerSocket |
| | | */ |
| | | public ServerTSap(int port, int backlog, InetAddress bindAddr, TConnectionListener conListener) { |
| | | this(port, backlog, bindAddr, conListener, ServerSocketFactory.getDefault()); |
| | | } |
| | | |
| | | /** |
| | | * Use this constructor to create a server TSAP that can listen on a port, with a specified ServerSocketFactory. |
| | | * |
| | | * @param port |
| | | * the TCP port that the ServerSocket will connect to. Should be between 1 and 65535. |
| | | * @param connectionListener |
| | | * the ConnectionListener that will be notified when remote TSAPs are connecting or the server stopped |
| | | * listening. |
| | | * @param backlog |
| | | * is passed to the java.net.ServerSocket |
| | | * @param bindAddr |
| | | * the IP address to bind to. It is passed to java.net.ServerSocket |
| | | * @param serverSocketFactory |
| | | * The ServerSocketFactory to be used to create the ServerSocket |
| | | */ |
| | | public ServerTSap(int port, int backlog, InetAddress bindAddr, TConnectionListener connectionListener, |
| | | ServerSocketFactory serverSocketFactory) { |
| | | if (port < 1 || port > 65535) { |
| | | throw new IllegalArgumentException("port number is out of bound"); |
| | | } |
| | | |
| | | this.port = port; |
| | | this.backlog = backlog; |
| | | this.bindAddr = bindAddr; |
| | | this.connectionListener = connectionListener; |
| | | this.serverSocketFactory = serverSocketFactory; |
| | | } |
| | | |
| | | /** |
| | | * Starts a new thread that listens on the configured port. This method is non-blocking. |
| | | * |
| | | * @throws IOException |
| | | * if a starting to listen fails |
| | | */ |
| | | public void startListening() throws IOException { |
| | | started = true; |
| | | serverThread = new ServerThread(serverSocketFactory.createServerSocket(port, backlog, bindAddr), |
| | | maxTPDUSizeParam, maxConnections, messageTimeout, messageFragmentTimeout, connectionListener); |
| | | serverThread.start(); |
| | | } |
| | | |
| | | /** |
| | | * Stop listing on the port. Stops the server thread. |
| | | */ |
| | | public void stopListening() { |
| | | if (serverThread != null) { |
| | | serverThread.stopServer(); |
| | | } |
| | | serverThread = null; |
| | | started = false; |
| | | } |
| | | |
| | | /** |
| | | * Set the maxTPDUSize. The default maxTPduSize is 65531 (see RFC 1006). |
| | | * |
| | | * @param maxTPduSizeParam |
| | | * The maximum length is equal to 2^(maxTPduSizeParam) octets. Note that the actual TSDU size that can be |
| | | * transfered is equal to TPduSize-3. Default is 65531 octets (see RFC 1006), 7 <= maxTPduSizeParam |
| | | * <= 16, needs to be set before listening or connecting |
| | | */ |
| | | public void setMaxTPDUSizeParam(int maxTPduSizeParam) { |
| | | if (started == true) { |
| | | throw new RuntimeException("Trying to set parameter although server has started."); |
| | | } |
| | | if (maxTPduSizeParam < 7 || maxTPduSizeParam > 16) { |
| | | throw new IllegalArgumentException("maxTPDUSizeParam is out of bound"); |
| | | } |
| | | this.maxTPDUSizeParam = maxTPduSizeParam; |
| | | } |
| | | |
| | | /** |
| | | * Set the maximum number of connections that are allowed in parallel by the Server SAP. |
| | | * |
| | | * @param maxConnections |
| | | * the number of connections allowed (default is 100) |
| | | */ |
| | | public void setMaxConnections(int maxConnections) { |
| | | if (started == true) { |
| | | throw new RuntimeException("Trying to set parameter although server has started."); |
| | | } |
| | | if (maxConnections < 0) { |
| | | throw new IllegalArgumentException("maxConnections is out of bound"); |
| | | } |
| | | this.maxConnections = maxConnections; |
| | | } |
| | | |
| | | /** |
| | | * Set the TConnection timeout for waiting for the first byte of a new message. Default is 0 (unlimited) |
| | | * |
| | | * @param messageTimeout |
| | | * in milliseconds |
| | | */ |
| | | public void setMessageTimeout(int messageTimeout) { |
| | | if (started == true) { |
| | | throw new RuntimeException("Message timeout may not be set while the server SAP ist listening."); |
| | | } |
| | | this.messageTimeout = messageTimeout; |
| | | } |
| | | |
| | | /** |
| | | * Set the TConnection timeout for receiving data once the beginning of a message has been received. Default is |
| | | * 60000 (60 seconds) |
| | | * |
| | | * @param messageFragmentTimeout |
| | | * in milliseconds |
| | | */ |
| | | public void setMessageFragmentTimeout(int messageFragmentTimeout) { |
| | | if (started == true) { |
| | | throw new RuntimeException("Message fragment timeout may not be set while the server SAP ist listening."); |
| | | } |
| | | this.messageFragmentTimeout = messageFragmentTimeout; |
| | | } |
| | | |
| | | /** |
| | | * Get the maximum TPDU size parameter to be used by this TSAP |
| | | * |
| | | * @return the maximum TPDU size parameter |
| | | */ |
| | | public int getMaxTPDUSizeParam() { |
| | | return maxTPDUSizeParam; |
| | | } |
| | | |
| | | /** |
| | | * Calculates and returns the maximum TPDUSize. This is equal to 2^(maxTPDUSizeParam) |
| | | * |
| | | * @param maxTPDUSizeParam |
| | | * the size parameter |
| | | * @return the maximum TPDU size |
| | | */ |
| | | public static int getMaxTPDUSize(int maxTPDUSizeParam) { |
| | | if (maxTPDUSizeParam < 7 || maxTPDUSizeParam > 16) { |
| | | throw new IllegalArgumentException("maxTPDUSizeParam is out of bound"); |
| | | } |
| | | if (maxTPDUSizeParam == 16) { |
| | | return 65531; |
| | | } |
| | | else { |
| | | return (int) Math.pow(2, maxTPDUSizeParam); |
| | | } |
| | | } |
| | | |
| | | TConnectionListener getConnectionListener() { |
| | | return connectionListener; |
| | | } |
| | | |
| | | } |
| | | /*
|
| | | * Copyright 2011-17 Fraunhofer ISE, energy & meteo Systems GmbH and other contributors
|
| | | *
|
| | | * Licensed 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.openmuc.jositransport;
|
| | |
|
| | | import java.io.IOException;
|
| | | import java.net.InetAddress;
|
| | |
|
| | | import javax.net.ServerSocketFactory;
|
| | |
|
| | | /**
|
| | | * This class implements the server Transport Service Access Point (TSAP) over TCP/IP as defined in RFC 1006, ISO 8072,
|
| | | * and ISO 8073. It can be used to listen for incoming TConnections.
|
| | | * |
| | | */
|
| | | public class ServerTSap {
|
| | |
|
| | | private ServerThread serverThread;
|
| | |
|
| | | private final int port;
|
| | | private final InetAddress bindAddr;
|
| | | private final int backlog;
|
| | | private final TConnectionListener connectionListener;
|
| | | private final ServerSocketFactory serverSocketFactory;
|
| | |
|
| | | private boolean started = false;
|
| | | private int maxTPDUSizeParam = 16;
|
| | | private int maxConnections = 100;
|
| | | private int messageTimeout = 0;
|
| | | private int messageFragmentTimeout = 60000;
|
| | |
|
| | | /**
|
| | | * Use this constructor to create a server TSAP that can listen on a port.
|
| | | * |
| | | * @param port
|
| | | * the TCP port that the ServerSocket will connect to. Should be between 1 and 65535.
|
| | | * @param conListener
|
| | | * the ConnectionListener that will be notified when remote TSAPs are connecting or the server stopped
|
| | | * listening.
|
| | | */
|
| | | public ServerTSap(int port, TConnectionListener conListener) {
|
| | | this(port, 0, null, conListener, ServerSocketFactory.getDefault());
|
| | | }
|
| | |
|
| | | /**
|
| | | * Use this constructor to create a server TSAP that can listen on a port.
|
| | | * |
| | | * @param port
|
| | | * the TCP port that the ServerSocket will connect to. Should be between 1 and 65535.
|
| | | * @param conListener
|
| | | * the ConnectionListener that will be notified when remote TSAPs are connecting or the server stopped
|
| | | * listening.
|
| | | * @param backlog
|
| | | * is passed to the java.net.ServerSocket
|
| | | * @param bindAddr
|
| | | * the IP address to bind to. It is passed to java.net.ServerSocket
|
| | | */
|
| | | public ServerTSap(int port, int backlog, InetAddress bindAddr, TConnectionListener conListener) {
|
| | | this(port, backlog, bindAddr, conListener, ServerSocketFactory.getDefault());
|
| | | }
|
| | |
|
| | | /**
|
| | | * Use this constructor to create a server TSAP that can listen on a port, with a specified ServerSocketFactory.
|
| | | * |
| | | * @param port
|
| | | * the TCP port that the ServerSocket will connect to. Should be between 1 and 65535.
|
| | | * @param connectionListener
|
| | | * the ConnectionListener that will be notified when remote TSAPs are connecting or the server stopped
|
| | | * listening.
|
| | | * @param backlog
|
| | | * is passed to the java.net.ServerSocket
|
| | | * @param bindAddr
|
| | | * the IP address to bind to. It is passed to java.net.ServerSocket
|
| | | * @param serverSocketFactory
|
| | | * The ServerSocketFactory to be used to create the ServerSocket
|
| | | */
|
| | | public ServerTSap(int port, int backlog, InetAddress bindAddr, TConnectionListener connectionListener,
|
| | | ServerSocketFactory serverSocketFactory) {
|
| | | if (port < 1 || port > 65535) {
|
| | | throw new IllegalArgumentException("port number is out of bound");
|
| | | }
|
| | |
|
| | | this.port = port;
|
| | | this.backlog = backlog;
|
| | | this.bindAddr = bindAddr;
|
| | | this.connectionListener = connectionListener;
|
| | | this.serverSocketFactory = serverSocketFactory;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Starts a new thread that listens on the configured port. This method is non-blocking.
|
| | | * |
| | | * @throws IOException
|
| | | * if a starting to listen fails
|
| | | */
|
| | | public void startListening() throws IOException {
|
| | | started = true;
|
| | | serverThread = new ServerThread(serverSocketFactory.createServerSocket(port, backlog, bindAddr),
|
| | | maxTPDUSizeParam, maxConnections, messageTimeout, messageFragmentTimeout, connectionListener);
|
| | | serverThread.start();
|
| | | }
|
| | |
|
| | | /**
|
| | | * Stop listing on the port. Stops the server thread.
|
| | | */
|
| | | public void stopListening() {
|
| | | if (serverThread != null) {
|
| | | serverThread.stopServer();
|
| | | }
|
| | | serverThread = null;
|
| | | started = false;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Set the maxTPDUSize. The default maxTPduSize is 65531 (see RFC 1006).
|
| | | * |
| | | * @param maxTPduSizeParam
|
| | | * The maximum length is equal to 2^(maxTPduSizeParam) octets. Note that the actual TSDU size that can be
|
| | | * transfered is equal to TPduSize-3. Default is 65531 octets (see RFC 1006), 7 <= maxTPduSizeParam
|
| | | * <= 16, needs to be set before listening or connecting
|
| | | */
|
| | | public void setMaxTPDUSizeParam(int maxTPduSizeParam) {
|
| | | if (started == true) {
|
| | | throw new RuntimeException("Trying to set parameter although server has started.");
|
| | | }
|
| | | if (maxTPduSizeParam < 7 || maxTPduSizeParam > 16) {
|
| | | throw new IllegalArgumentException("maxTPDUSizeParam is out of bound");
|
| | | }
|
| | | this.maxTPDUSizeParam = maxTPduSizeParam;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Set the maximum number of connections that are allowed in parallel by the Server SAP.
|
| | | * |
| | | * @param maxConnections
|
| | | * the number of connections allowed (default is 100)
|
| | | */
|
| | | public void setMaxConnections(int maxConnections) {
|
| | | if (started == true) {
|
| | | throw new RuntimeException("Trying to set parameter although server has started.");
|
| | | }
|
| | | if (maxConnections < 0) {
|
| | | throw new IllegalArgumentException("maxConnections is out of bound");
|
| | | }
|
| | | this.maxConnections = maxConnections;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Set the TConnection timeout for waiting for the first byte of a new message. Default is 0 (unlimited)
|
| | | * |
| | | * @param messageTimeout
|
| | | * in milliseconds
|
| | | */
|
| | | public void setMessageTimeout(int messageTimeout) {
|
| | | if (started == true) {
|
| | | throw new RuntimeException("Message timeout may not be set while the server SAP ist listening.");
|
| | | }
|
| | | this.messageTimeout = messageTimeout;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Set the TConnection timeout for receiving data once the beginning of a message has been received. Default is
|
| | | * 60000 (60 seconds)
|
| | | * |
| | | * @param messageFragmentTimeout
|
| | | * in milliseconds
|
| | | */
|
| | | public void setMessageFragmentTimeout(int messageFragmentTimeout) {
|
| | | if (started == true) {
|
| | | throw new RuntimeException("Message fragment timeout may not be set while the server SAP ist listening.");
|
| | | }
|
| | | this.messageFragmentTimeout = messageFragmentTimeout;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Get the maximum TPDU size parameter to be used by this TSAP
|
| | | * |
| | | * @return the maximum TPDU size parameter
|
| | | */
|
| | | public int getMaxTPDUSizeParam() {
|
| | | return maxTPDUSizeParam;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Calculates and returns the maximum TPDUSize. This is equal to 2^(maxTPDUSizeParam)
|
| | | * |
| | | * @param maxTPDUSizeParam
|
| | | * the size parameter
|
| | | * @return the maximum TPDU size
|
| | | */
|
| | | public static int getMaxTPDUSize(int maxTPDUSizeParam) {
|
| | | if (maxTPDUSizeParam < 7 || maxTPDUSizeParam > 16) {
|
| | | throw new IllegalArgumentException("maxTPDUSizeParam is out of bound");
|
| | | }
|
| | | if (maxTPDUSizeParam == 16) {
|
| | | return 65531;
|
| | | }
|
| | | else {
|
| | | return (int) Math.pow(2, maxTPDUSizeParam);
|
| | | }
|
| | | }
|
| | |
|
| | | TConnectionListener getConnectionListener() {
|
| | | return connectionListener;
|
| | | }
|
| | |
|
| | | }
|