admin.astor.statistics.ServerStat Maven / Gradle / Ivy
//+======================================================================
// $Source: $
//
// Project: Tango
//
// Description: java source code for Tango manager tool..
//
// $Author: verdier $
//
// Copyright (C) : 2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,
// European Synchrotron Radiation Facility
// BP 220, Grenoble 38043
// FRANCE
//
// This file is part of Tango.
//
// Tango 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 3 of the License, or
// (at your option) any later version.
//
// Tango 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 Tango. If not, see {
public String name;
public StarterStat starterStat;
public int nbFailures = 0;
public long failedDuration = 0;
public long runDuration = 0;
public long oldestTime = 0;
private List logs = new ArrayList<>();
// Saving file definitions
public static final String className = "ServerStat";
private static final String nameStr = "server";
private static final String nbFailStr = "nbFailures";
private static final String tFailStr = "failedDuration";
private static final String tRunStr = "runDuration";
private static final String resetStr = "reset";
private static final String description =
"<" + className + " " +
nameStr + "=\"SERVER\" " +
nbFailStr + "=\"NB_FAILURES\" " +
tFailStr + "=\"FAILED_DURATION\" " +
tRunStr + "=\"RUN_DURATION\"" +
resetStr + "=\"RESET\"" +
">";
private static final String tab = "\t\t\t";
//===============================================================
/**
* Statistics for the specified server
*
* @param lines xml lines
* @throws DevFailed if parsing xml lines failed.
*/
//===============================================================
public ServerStat(List lines) throws DevFailed {
parseXmlStatistics(lines);
}
//=======================================================
//=======================================================
private void parseXmlStatistics(List lines) throws DevFailed {
// The first line is the Starter definition
if (lines.size() >= 0) {
parseXmlProperties(lines.get(0));
for (int i = 1; i < lines.size(); i++) {
add(new ServerRecord(lines.get(i)));
}
}
}
//=======================================================
//=======================================================
private void parseXmlProperties(String line) throws DevFailed {
name = Utils.parseXmlProperty(line, nameStr);
try {
nbFailures = Integer.parseInt(Utils.parseXmlProperty(line, nbFailStr));
failedDuration = Long.parseLong(Utils.parseXmlProperty(line, tFailStr));
runDuration = Long.parseLong(Utils.parseXmlProperty(line, tRunStr));
oldestTime = Long.parseLong(Utils.parseXmlProperty(line, resetStr));
} catch (NumberFormatException e) {
Except.throw_exception("SYNTAX_ERROR", e.toString(), "ServerStat.parseLine()");
}
}
//===============================================================
/**
* Statistics for the specified server
*
* @param name server name
*/
//===============================================================
public ServerStat(String name) {
this.name = name;
}
//===============================================================
/**
* Statistics for the specified server
*
* @param name server name
* @param starterStat start where server is registered statistics
*/
//===============================================================
public ServerStat(String name, StarterStat starterStat) {
this.name = name;
this.starterStat = starterStat;
}
//===============================================================
//===============================================================
public void addLog(LogRecord log) {
logs.add(log);
}
//===============================================================
//===============================================================
public void computeStatistics() {
nbFailures = 0;
failedDuration = 0;
runDuration = 0;
oldestTime = System.currentTimeMillis();
// For each Log record
List serverRecords = new ArrayList<>();
for (int i = logs.size() - 1; i >= 0; i--) {
LogRecord log = logs.get(i);
DevState state = log.newState;
long t0;
long t1 = 0;
int idx;
if (state == DevState.FAULT) {
// Check failure time and duration
nbFailures++;
t0 = log.failedTime;
if (i == 0) // Last record (until now)
t1 = System.currentTimeMillis();
else {
idx = getNextRestartIndex(i);
if (idx >= 0) { // Found
t1 = logs.get(idx).startedTime;
i = idx + 1;
} else {
idx = getNextFailureIndex(i);
if (idx >= 0) { // Found
t1 = logs.get(idx).failedTime;
i = idx + 1;
}
}
}
failedDuration += t1 - t0;
} else {
// Check running time and duration
t0 = log.startedTime;
if (i == 0) // Last record (until now)
t1 = System.currentTimeMillis();
else {
idx = getNextFailureIndex(i);
if (idx >= 0) { // Found
t1 = logs.get(idx).failedTime;
i = idx + 1;
} else {
idx = getNextRestartIndex(i);
if (idx >= 0) { // Found
t1 = logs.get(idx).startedTime;
i = idx + 1;
}
}
}
runDuration += t1 - t0;
}
ServerRecord serverRecord = new ServerRecord(log.newState, t0, t1, log.autoRestart);
serverRecords.add(serverRecord);
if (oldestTime > t0)
oldestTime = t0;
}
// Reverse order to have last record first
for (ServerRecord rec : serverRecords)
add(0, rec);
}
//===============================================================
//===============================================================
private int getNextRestartIndex(int i) {
i--;
for (; i >= 0; i--) {
LogRecord rec = logs.get(i);
if (rec.newState == DevState.ON)
return i;
}
return -1;
}
//===============================================================
//===============================================================
private int getNextFailureIndex(int i) {
i--;
for (; i >= 0; i--) {
LogRecord rec = logs.get(i);
if (rec.newState == DevState.FAULT)
return i;
}
return -1;
}
//===============================================================
//===============================================================
public String recordsToString() {
StringBuilder sb = new StringBuilder();
sb.append(name).append(":\n");
for (ServerRecord rec : this) {
sb.append(rec).append("\n");
}
return sb.toString();
}
//===============================================================
/**
* @return the server availability ina double value (e.g.: 0.98)
*/
//===============================================================
public double getAvailability() {
return ((double) runDuration / (runDuration + failedDuration));
}
//===============================================================
//===============================================================
public long getLastFailure() {
for (ServerRecord rec : this) {
if (rec.state == DevState.FAULT && rec.startTime > 0)
return rec.startTime;
}
return 0;
}
//=======================================================
//=======================================================
private String toXmlLine() {
String str = description;
str = Utils.strReplace(str, "SERVER", name);
str = Utils.strReplace(str, "NB_FAILURES", Integer.toString(nbFailures));
str = Utils.strReplace(str, "FAILED_DURATION", Long.toString(failedDuration));
str = Utils.strReplace(str, "RUN_DURATION", Long.toString(runDuration));
str = Utils.strReplace(str, "RESET", Long.toString(oldestTime));
return str;
}
//=======================================================
//=======================================================
public String toXml() {
StringBuilder sb = new StringBuilder();
sb.append(tab).append("").append(toXmlLine()).append(">\n");
for (ServerRecord record : this)
sb.append(record.toXml()).append("\n");
sb.append(tab).append("");
return sb.toString();
}
//===============================================================
//===============================================================
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(name).append(":\thas run ").append(Utils.formatDuration(runDuration));
if (nbFailures > 0)
sb.append(" has failed ").append(nbFailures).append(" times (total time: ").
append(Utils.formatDuration(failedDuration)).append(") - ")
.append(size()).append(" records");
return sb.toString();
}
//===============================================================
//===============================================================
}
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