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Diffstat (limited to 'base/util/src/netscape/net/NetworkClient.java')
-rw-r--r-- | base/util/src/netscape/net/NetworkClient.java | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/base/util/src/netscape/net/NetworkClient.java b/base/util/src/netscape/net/NetworkClient.java new file mode 100644 index 000000000..ae8cdfcf4 --- /dev/null +++ b/base/util/src/netscape/net/NetworkClient.java @@ -0,0 +1,87 @@ +// --- BEGIN COPYRIGHT BLOCK --- +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; version 2 of the License. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License along +// with this program; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +// +// (C) 2007 Red Hat, Inc. +// All rights reserved. +// --- END COPYRIGHT BLOCK --- +package netscape.net; + +import java.io.BufferedInputStream; +import java.io.BufferedOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.PrintStream; +import java.net.Socket; +import java.net.UnknownHostException; + +/** + * This is the base class for network clients. + * + * @version 1.21, 08/07/97 + * @author Jonathan Payne + */ +public class NetworkClient { + /** Socket for communicating with server. */ + protected Socket serverSocket = null; + + /** Stream for printing to the server. */ + public PrintStream serverOutput; + + /** Buffered stream for reading replies from server. */ + public InputStream serverInput; + + /** Open a connection to the server. */ + public void openServer(String server, int port) + throws IOException, UnknownHostException { + if (serverSocket != null) + closeServer(); + serverSocket = doConnect(server, port); + serverOutput = new PrintStream(new BufferedOutputStream(serverSocket.getOutputStream()), + true); + serverInput = new BufferedInputStream(serverSocket.getInputStream()); + } + + /** + * Return a socket connected to the server, with any + * appropriate options pre-established + */ + protected Socket doConnect(String server, int port) + throws IOException, UnknownHostException { + return new Socket(server, port); + } + + /** Close an open connection to the server. */ + public void closeServer() throws IOException { + if (!serverIsOpen()) { + return; + } + serverSocket.close(); + serverSocket = null; + serverInput = null; + serverOutput = null; + } + + /** Return server connection status */ + public boolean serverIsOpen() { + return serverSocket != null; + } + + /** Create connection with host <i>host</i> on port <i>port</i> */ + public NetworkClient(String host, int port) throws IOException { + openServer(host, port); + } + + public NetworkClient() { + } +} |