JAL-3541 selectively merged build.gradle and gradle.properties

[jalview.git] / srcjar_unused / org / apache / log4j / varia / Roller.java

diff --git a/srcjar_unused/org/apache/log4j/varia/Roller.java b/srcjar_unused/org/apache/log4j/varia/Roller.java
new file mode 100644 (file)
index 0000000..4fdf896
--- /dev/null
+++ b/srcjar_unused/org/apache/log4j/varia/Roller.java
@@ -0,0 +1,112 @@
+/*
+ * 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.log4j.varia;
+
+import org.apache.log4j.Logger;
+import org.apache.log4j.BasicConfigurator;
+
+import java.io.IOException;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.net.Socket;
+
+/**
+   A simple application to send roll over messages to a potentially
+   remote {@link ExternallyRolledFileAppender}. 
+
+   <p>It takes two arguments, the <code>host_name</code> and
+   <code>port_number</code> where the
+   <code>ExternallyRolledFileAppender</code> is listening.
+   
+
+   @author Ceki G&uuml;lc&uuml;
+   @since version 0.9.0 */
+public class Roller {
+
+  static Logger cat = Logger.getLogger(Roller.class);
+  
+
+  static String host;
+  static int port;
+
+  // Static class.
+  Roller() {
+  }
+
+  /**
+     Send a "RollOver" message to
+     <code>ExternallyRolledFileAppender</code> on <code>host</code>
+     and <code>port</code>.
+
+   */
+  public 
+  static 
+  void main(String argv[]) {
+
+    BasicConfigurator.configure();
+
+    if(argv.length == 2) {
+        init(argv[0], argv[1]);
+    } else {
+        usage("Wrong number of arguments.");
+    }
+    
+    roll();
+  }
+
+  static
+  void usage(String msg) {
+    System.err.println(msg);
+    System.err.println( "Usage: java " + Roller.class.getName() +
+                       "host_name port_number");
+    System.exit(1);
+  }
+
+  static 
+  void init(String hostArg, String portArg) {
+    host = hostArg;
+    try {
+      port =  Integer.parseInt(portArg);
+    }
+    catch(java.lang.NumberFormatException e) {
+      usage("Second argument "+portArg+" is not a valid integer.");
+    }
+  }
+
+  static
+  void roll() {
+    try {
+      Socket socket = new Socket(host, port);
+      DataOutputStream dos = new DataOutputStream(socket.getOutputStream());
+      DataInputStream dis = new DataInputStream(socket.getInputStream());
+      dos.writeUTF(ExternallyRolledFileAppender.ROLL_OVER);
+      String rc = dis.readUTF();
+      if(ExternallyRolledFileAppender.OK.equals(rc)) {
+       cat.info("Roll over signal acknowledged by remote appender.");
+      } else {
+       cat.warn("Unexpected return code "+rc+" from remote entity.");
+       System.exit(2);
+      }
+    } catch(IOException e) {
+      cat.error("Could not send roll signal on host "+host+" port "+port+" .",
+               e);
+      System.exit(2);
+    }
+    System.exit(0);
+  }
+}