X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=srcjar_unused%2Forg%2Fapache%2Flog4j%2Fvaria%2FRoller.java;fp=srcjar_unused%2Forg%2Fapache%2Flog4j%2Fvaria%2FRoller.java;h=4fdf896de512c08235a8184544a48baa6b4516d1;hb=4f30214e8098748469c6a4269ac2ed6c5750e4b0;hp=0000000000000000000000000000000000000000;hpb=9dabc02511e3a334a5749a504f57f69d6c9017bd;p=jalview.git diff --git a/srcjar_unused/org/apache/log4j/varia/Roller.java b/srcjar_unused/org/apache/log4j/varia/Roller.java new file mode 100644 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}. + +
It takes two arguments, the host_name
and
+ port_number
where the
+ ExternallyRolledFileAppender
is listening.
+
+
+ @author Ceki Gülcü
+ @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
+ ExternallyRolledFileAppender
on host
+ and port
.
+
+ */
+ 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);
+ }
+}