/* ============================================================
* JRobin : Pure java implementation of RRDTool's functionality
* ============================================================
*
* Project Info: http://www.jrobin.org
* Project Lead: Sasa Markovic (saxon@jrobin.org);
*
* (C) Copyright 2003-2005, by Sasa Markovic.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* Developers: Sasa Markovic (saxon@jrobin.org)
*
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
package org.jrobin.cmd;
import org.jrobin.core.RrdException;
import org.jrobin.core.RrdDb;
import org.jrobin.core.Datasource;
import org.jrobin.core.Util;
import java.io.IOException;
class RrdTuneCmd extends RrdToolCmd {
String getCmdType() {
return "tune";
}
Object execute() throws RrdException, IOException {
String[] heartbeats = getMultipleOptionValues("h", "heartbeat");
String[] minimums = getMultipleOptionValues("i", "minimum");
String[] maximums = getMultipleOptionValues("a", "maximum");
String[] dsTypes = getMultipleOptionValues("d", "data-source-type");
String[] dsNames = getMultipleOptionValues("r", "data-source-rename");
String[] words = getRemainingWords();
if (words.length < 2) {
throw new RrdException("File name not specified");
}
if (words.length > 2) {
throw new RrdException("Unexpected token encountered: " + words[2]);
}
String path = words[1];
RrdDb rrd = getRrdDbReference(path);
try {
// heartbeat
for (String heartbeat : heartbeats) {
tuneHeartbeat(rrd, heartbeat);
}
// minimum
for (String minimum : minimums) {
tuneMinimum(rrd, minimum);
}
// maximum
for (String maximum : maximums) {
tuneMaximum(rrd, maximum);
}
// rename
for (String dsName : dsNames) {
tuneName(rrd, dsName);
}
// type
for (String dsType : dsTypes) {
tuneType(rrd, dsType);
}
// post festum
if (heartbeats.length == 0 && minimums.length == 0 && maximums.length == 0 &&
dsTypes.length == 0 && dsNames.length == 0) {
dump(rrd);
}
}
finally {
releaseRrdDbReference(rrd);
}
return path;
}
private void tuneHeartbeat(RrdDb rrd, String heartbeatStr) throws RrdException, IOException {
String[] tokens = new ColonSplitter(heartbeatStr).split();
if (tokens.length != 2) {
throw new RrdException("Invalid suntax in: " + heartbeatStr);
}
String dsName = tokens[0];
long heartbeat = Long.parseLong(tokens[1]);
Datasource ds = rrd.getDatasource(dsName);
ds.setHeartbeat(heartbeat);
}
private void tuneMinimum(RrdDb rrd, String minimumStr) throws RrdException, IOException {
String[] tokens = new ColonSplitter(minimumStr).split();
if (tokens.length != 2) {
throw new RrdException("Invalid suntax in: " + minimumStr);
}
String dsName = tokens[0];
double minValue = Util.parseDouble(tokens[1]);
Datasource ds = rrd.getDatasource(dsName);
ds.setMinValue(minValue, false);
}
private void tuneMaximum(RrdDb rrd, String maximumStr) throws RrdException, IOException {
String[] tokens = new ColonSplitter(maximumStr).split();
if (tokens.length != 2) {
throw new RrdException("Invalid suntax in: " + maximumStr);
}
String dsName = tokens[0];
double maxValue = Util.parseDouble(tokens[1]);
Datasource ds = rrd.getDatasource(dsName);
ds.setMaxValue(maxValue, false);
}
private void tuneName(RrdDb rrd, String nameStr) throws RrdException, IOException {
String[] tokens = new ColonSplitter(nameStr).split();
if (tokens.length != 2) {
throw new RrdException("Invalid suntax in: " + nameStr);
}
String oldName = tokens[0], newName = tokens[1];
Datasource ds = rrd.getDatasource(oldName);
ds.setDsName(newName);
}
private void tuneType(RrdDb rrd, String typeStr) throws RrdException, IOException {
String[] tokens = new ColonSplitter(typeStr).split();
if (tokens.length != 2) {
throw new RrdException("Invalid suntax in: " + typeStr);
}
String dsName = tokens[0];
String dsType = tokens[1];
Datasource ds = rrd.getDatasource(dsName);
ds.setDsType(dsType);
}
private void dump(RrdDb rrd) throws IOException {
StringBuffer line = new StringBuffer();
int n = rrd.getDsCount();
for (int i = 0; i < n; i++) {
Datasource ds = rrd.getDatasource(i);
line.append("DS[");
line.append(ds.getDsName());
line.append("] typ: ");
line.append(ds.getDsType());
while (line.length() < 24) {
line.append(' ');
}
line.append("hbt: ");
line.append(ds.getHeartbeat());
while (line.length() < 40) {
line.append(' ');
}
line.append("min: ");
line.append(String.format("%-11f", ds.getMinValue()));
line.append("max: ");
line.append(String.format("%-11f", ds.getMaxValue()));
println(line.toString());
line.setLength(0);
}
}
}