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* CruiseControl, a Continuous Integration Toolkit
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package net.sourceforge.cruisecontrol;
import net.sourceforge.cruisecontrol.util.Util;
import org.apache.log4j.Logger;
import org.jdom.Attribute;
import org.jdom.DataConversionException;
import org.jdom.Element;
import java.io.File;
/**
* @author Jared Richardson jared.richardson@sas.com
* <p>
* this routine encapsulates the config file for the application.
* it fetches a value from the config file and handles errors.
*/
public class ServerXMLHelper {
private static final Logger LOG = Logger.getLogger(ServerXMLHelper.class);
private int numThreads = 1;
public ServerXMLHelper(File configFile) {
try {
Element configLogElement = Util.loadRootElement(configFile);
Element systemElement = configLogElement.getChild("system");
if (systemElement == null) {
LOG.debug("no system element found in config.xml");
return;
}
Element configurationElement = systemElement.getChild("configuration");
if (configurationElement == null) {
LOG.debug("no configuraiton element found in config.xml");
return;
}
Element threadElement = configurationElement.getChild("threads");
if (threadElement == null) {
LOG.debug("no threads element found in config.xml");
return;
}
Attribute threadCount = threadElement.getAttribute("count");
LOG.debug("count attribute on threads is " + threadCount.toString());
try {
numThreads = threadCount.getIntValue();
} catch (DataConversionException dce) {
LOG.error("Expected a numeric value for system-configuration-threads-count in config.xml but found "
+ threadCount.toString(), dce);
numThreads = 1;
}
} catch (Exception e) {
LOG.warn("error parsing thread count from config file; defaulting to 1 thread.", e);
numThreads = 1;
}
}
/**
* @return int the number of threads that CruiseControl should allow to run at the same time
* to process pending build requests
*/
public int getNumThreads() {
return numThreads;
}
}