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downloading a git-generated archive based on the 'upstream' tag
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1 files changed, 220 insertions, 0 deletions

diff --git a/libjava/classpath/java/util/logging/SocketHandler.java b/libjava/classpath/java/util/logging/SocketHandler.java
new file mode 100644
index 000000000..3c17b9bbc
--- /dev/null
+++ b/libjava/classpath/java/util/logging/SocketHandler.java
@@ -0,0 +1,220 @@
+/* SocketHandler.java -- a class for publishing log messages to network sockets
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.util.logging;
+
+
+/**
+ * A <code>SocketHandler</code> publishes log records to
+ * a TCP/IP socket.
+ *
+ * <p><strong>Configuration:</strong> Values of the subsequent
+ * <code>LogManager</code> properties are taken into consideration
+ * when a <code>SocketHandler</code> is initialized.
+ * If a property is not defined, or if it has an invalid
+ * value, a default is taken without an exception being thrown.
+ *
+ * <ul>
+ *
+ * <li><code>java.util.SocketHandler.level</code> - specifies
+ *     the initial severity level threshold. Default value:
+ *     <code>Level.ALL</code>.</li>
+ *
+ * <li><code>java.util.SocketHandler.filter</code> - specifies
+ *     the name of a Filter class. Default value: No Filter.</li>
+ *
+ * <li><code>java.util.SocketHandler.formatter</code> - specifies
+ *     the name of a Formatter class. Default value:
+ *     <code>java.util.logging.XMLFormatter</code>.</li>
+ *
+ * <li><code>java.util.SocketHandler.encoding</code> - specifies
+ *     the name of the character encoding. Default value:
+ *     the default platform encoding.</li>
+ *
+ * <li><code>java.util.SocketHandler.host</code> - specifies
+ *     the name of the host to which records are published.
+ *     There is no default value for this property; if it is
+ *     not set, the SocketHandler constructor will throw
+ *     an exception.</li>
+ *
+ * <li><code>java.util.SocketHandler.port</code> - specifies
+ *     the TCP/IP port to which records are published.
+ *     There is no default value for this property; if it is
+ *     not set, the SocketHandler constructor will throw
+ *     an exception.</li>
+ *
+ * </ul>
+ *
+ * @author Sascha Brawer (brawer@acm.org)
+ */
+public class SocketHandler
+  extends StreamHandler
+{
+  /**
+   * Constructs a <code>SocketHandler</code> that publishes log
+   * records to a TCP/IP socket.  Tthe initial configuration is
+   * determined by the <code>LogManager</code> properties described
+   * above.
+   *
+   * @throws java.io.IOException if the connection to the specified
+   *         network host and port cannot be established.
+   *
+   * @throws java.lang.IllegalArgumentException if either the
+   *         <code>java.util.logging.SocketHandler.host</code>
+   *         or <code>java.util.logging.SocketHandler.port</code>
+   *         LogManager properties is not defined, or specifies
+   *         an invalid value.
+   */
+  public SocketHandler()
+    throws java.io.IOException
+  {
+    this(LogManager.getLogManager().getProperty("java.util.logging.SocketHandler.host"),
+         getPortNumber());
+  }
+
+
+  /**
+   * Constructs a <code>SocketHandler</code> that publishes log
+   * records to a TCP/IP socket.  With the exception of the internet
+   * host and port, the initial configuration is determined by the
+   * <code>LogManager</code> properties described above.
+   *
+   * @param host the Internet host to which log records will be
+   *        forwarded.
+   *
+   * @param port the port at the host which will accept a request
+   *        for a TCP/IP connection.
+   *
+   * @throws java.io.IOException if the connection to the specified
+   *         network host and port cannot be established.
+   *
+   * @throws java.lang.IllegalArgumentException if either
+   *         <code>host</code> or <code>port</code> specify
+   *         an invalid value.
+   */
+  public SocketHandler(String host, int port)
+    throws java.io.IOException
+  {
+    super(createSocket(host, port),
+          "java.util.logging.SocketHandler",
+          /* default level */ Level.ALL,
+          /* formatter */ null,
+          /* default formatter */ XMLFormatter.class);
+  }
+
+
+  /**
+   * Retrieves the port number from the java.util.logging.SocketHandler.port
+   * LogManager property.
+   *
+   * @throws IllegalArgumentException if the property is not defined or
+   *         does not specify an integer value.
+   */
+  private static int getPortNumber()
+  {
+    try {
+      return Integer.parseInt(LogManager.getLogManager().getProperty("java.util.logging.SocketHandler.port"));
+    } catch (Exception ex) {
+      throw new IllegalArgumentException();
+    }
+  }
+
+
+  /**
+   * Creates an OutputStream for publishing log records to an Internet
+   * host and port.  This private method is a helper for use by the
+   * constructor of SocketHandler.
+   *
+   * @param host the Internet host to which log records will be
+   *        forwarded.
+   *
+   * @param port the port at the host which will accept a request
+   *        for a TCP/IP connection.
+   *
+   * @throws java.io.IOException if the connection to the specified
+   *         network host and port cannot be established.
+   *
+   * @throws java.lang.IllegalArgumentException if either
+   *         <code>host</code> or <code>port</code> specify
+   *         an invalid value.
+   */
+  private static java.io.OutputStream createSocket(String host, int port)
+    throws java.io.IOException, java.lang.IllegalArgumentException
+  {
+    java.net.Socket  socket;
+
+    if ((host == null) || (port < 1))
+      throw new IllegalArgumentException();
+
+    socket = new java.net.Socket(host, port);
+
+    socket.shutdownInput();
+
+    /* The architecture of the logging framework provides replaceable
+     * formatters.  Because these formatters perform their task by
+     * returning one single String for each LogRecord to be formatted,
+     * there is no need to buffer.
+     */
+    socket.setTcpNoDelay(true);
+
+    return socket.getOutputStream();
+  }
+
+
+  /**
+   * Publishes a <code>LogRecord</code> to the network socket,
+   * provided the record passes all tests for being loggable.
+   * In addition, all data that may have been buffered will
+   * be forced to the network stream.
+   *
+   * <p>Most applications do not need to call this method directly.
+   * Instead, they will use a {@link Logger} instance, which will
+   * create LogRecords and distribute them to registered handlers.
+   *
+   * <p>In case of an I/O failure, the <code>ErrorManager</code>
+   * of this <code>SocketHandler</code> will be informed, but the caller
+   * of this method will not receive an exception.
+   *
+   * @param record the log event to be published.
+   */
+  public void publish(LogRecord record)
+  {
+    super.publish(record);
+    flush();
+  }
+}