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/*
*
* Derby - Class org.apache.derbyTesting.system.sttest.StStatus
*
* 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.derbyTesting.system.sttest.utils;
/**
* This class is used to give the information about the memory status
*/
import java.util.Date;
import java.io.*;
public class StStatus {
static final int messageCount = 20;
int cycles = 0;
int currentThreads = 0;
int currentMessage = 0;
public String firstMessage = null;
public String[] messages;
public StStatus() {
messages = new String[messageCount];
}
public void firstMessage(int Threadcount, Date d) {
currentThreads = Threadcount;
firstMessage = "starting: " + d.toString() + " threads: "
+ currentThreads;
}
public void updateStatus() throws IOException {
Date d = new Date();
cycles++;
int counter = currentMessage % messageCount;
Runtime rt = Runtime.getRuntime();
messages[counter] = "Total memory: " + rt.totalMemory()
+ " free memory: " + rt.freeMemory() + " cycles: " + cycles
+ " threads: " + currentThreads + " " + d;
currentMessage++;
//overwrite messages file with current set of messages
PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(
"Sttest.log")));
out.println(firstMessage);
for (int i = 0; i < messageCount; i++) {
if (messages[i] != null)
out.println(messages[i]);
}
out.flush();
out.close();
}
}
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