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=65740880573a48adc758bec3939ece9d9ae104dd;hp=0000000000000000000000000000000000000000;hpb=71aa78b8a7d54e5aeb6b278310dfd735efb77477;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); + } +}