etm.core.configuration.Xml12ConfigParser Maven / Gradle / Ivy
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package etm.core.configuration;
import etm.core.aggregation.BufferedThresholdAggregator;
import etm.core.aggregation.BufferedTimedAggregator;
import etm.core.aggregation.NotifyingAggregator;
import etm.core.aggregation.RootAggregator;
import etm.core.aggregation.persistence.PersistentRootAggregator;
import etm.core.jmx.EtmMonitorJmxPlugin;
import etm.core.util.Log;
import etm.core.util.LogAdapter;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
/**
* Config parser for jetm_config_1_2.dtd configurations.
*
* @author void.fm
* @version $Revision: 134 $
* @since 1.2.0
*/
class Xml12ConfigParser extends XmlConfigParser {
private static final LogAdapter log = Log.getLog(Xml12ConfigParser.class);
public EtmMonitorConfig parse(Document aDocument) {
EtmMonitorConfig monitorConfig = new EtmMonitorConfig();
Element documentElement = aDocument.getDocumentElement();
String attribute = getAttribute(documentElement, "autostart");
if ("true".equals(attribute)) {
monitorConfig.setAutostart(true);
}
String type = getAttribute(documentElement, "type");
if (type != null && type.length() > 0) {
monitorConfig.setMonitorType(type);
}
String timer = getAttribute(documentElement, "timer");
if (timer != null && timer.length() > 0) {
monitorConfig.setTimerType(timer);
}
NodeList features = documentElement.getElementsByTagName("features");
NodeList aggregatorChain = documentElement.getElementsByTagName("aggregator-chain");
if (features.getLength() != 0) {
parseFeatures(features, monitorConfig);
} else if (aggregatorChain.getLength() != 0) {
parseChain(aggregatorChain, monitorConfig);
}
NodeList extension = documentElement.getElementsByTagName("extension");
if (extension.getLength() != 0) {
NodeList plugins = ((Element) extension.item(0)).getElementsByTagName("plugin");
for (int i = 0; i < plugins.getLength(); i++) {
Element plugin = (Element) plugins.item(i);
EtmPluginConfig pluginConfig = extractPluginConfig(plugin);
monitorConfig.addExtension(pluginConfig);
}
}
return monitorConfig;
}
protected void parseFeatures(NodeList features, EtmMonitorConfig aMonitorConfig) {
Element featureConfig = ((Element) features.item(0));
//(threshold-buffer|interval-buffer)?, notifications?, persistence?, jmx?, raw-data-log?
NodeList thresholdBuffer = featureConfig.getElementsByTagName("threshold-buffer");
NodeList intervalBuffer = featureConfig.getElementsByTagName("interval-buffer");
NodeList notifications = featureConfig.getElementsByTagName("notifications");
NodeList persistence = featureConfig.getElementsByTagName("persistence");
NodeList jmxConfig = featureConfig.getElementsByTagName("jmx");
NodeList rawDataConfig = featureConfig.getElementsByTagName("raw-data-log");
if (persistence.getLength() != 0) {
Element element = ((Element) persistence.item(0));
EtmAggregatorConfig aggregatorConfig = new EtmAggregatorConfig();
aggregatorConfig.setAggregatorClass(PersistentRootAggregator.class);
// file based backend or custom backend??
NodeList fileBackend = element.getElementsByTagName("file-backend");
NodeList customBackend = element.getElementsByTagName("custom-backend");
if (fileBackend.getLength() != 0) {
Element fileBackendElement = ((Element) fileBackend.item(0));
addPropertyByAttribute(fileBackendElement, aggregatorConfig, "filename", "backendProperties.filename");
addPropertyByAttribute(fileBackendElement, aggregatorConfig, "path", "backendProperties.path");
} else if (customBackend.getLength() != 0) {
Element customBackendElement = ((Element) customBackend.item(0));
addPropertyByAttribute(customBackendElement, aggregatorConfig, "class", "persistenceBackendClass");
NodeList properties = customBackendElement.getElementsByTagName("property");
for (int j = 0; j < properties.getLength(); j++) {
Element property = (Element) properties.item(j);
aggregatorConfig.addProperty("backendProperties." + getAttribute(property, "name"), getNodeFirstChildTextValue(property));
}
}
aMonitorConfig.setAggregatorRoot(aggregatorConfig);
} else {
EtmAggregatorConfig aggregatorConfig = new EtmAggregatorConfig();
aggregatorConfig.setAggregatorClass(RootAggregator.class);
aMonitorConfig.setAggregatorRoot(aggregatorConfig);
}
if (thresholdBuffer.getLength() != 0) {
Element element = ((Element) thresholdBuffer.item(0));
EtmAggregatorConfig aggregatorConfig = new EtmAggregatorConfig();
aggregatorConfig.setAggregatorClass(BufferedThresholdAggregator.class);
addPropertyByAttribute(element, aggregatorConfig, "threshold", "threshold");
aMonitorConfig.appendAggregator(aggregatorConfig);
} else if (intervalBuffer.getLength() != 0) {
Element element = ((Element) thresholdBuffer.item(0));
EtmAggregatorConfig aggregatorConfig = new EtmAggregatorConfig();
aggregatorConfig.setAggregatorClass(BufferedTimedAggregator.class);
addPropertyByAttribute(element, aggregatorConfig, "interval", "aggregationInterval");
aMonitorConfig.appendAggregator(aggregatorConfig);
}
if (notifications.getLength() != 0) {
if (thresholdBuffer.getLength() == 0 && intervalBuffer.getLength() == 0) {
log.warn("Missing buffering aggregator while notifications enabled. Adding BufferedThresholdAggregator.");
EtmAggregatorConfig aggregatorConfig = new EtmAggregatorConfig();
aggregatorConfig.setAggregatorClass(BufferedThresholdAggregator.class);
aMonitorConfig.appendAggregator(aggregatorConfig);
}
Element element = ((Element) notifications.item(0));
EtmAggregatorConfig aggregatorConfig = new EtmAggregatorConfig();
aggregatorConfig.setAggregatorClass(NotifyingAggregator.class);
addPropertyByAttribute(element, aggregatorConfig, "rootOnly", "rootOnly");
addPropertyByAttribute(element, aggregatorConfig, "filter-pattern", "filterPattern");
aMonitorConfig.appendAggregator(aggregatorConfig);
}
if (rawDataConfig.getLength() != 0) {
Element element = ((Element) rawDataConfig.item(0));
EtmAggregatorConfig aggregatorConfig = new EtmAggregatorConfig();
String type = element.getAttribute("type");
// dependency to contrib!??!
if ("log4j".equals(type)) {
aggregatorConfig.setAggregatorClass("etm.contrib.aggregation.log.Log4jAggregator");
} else if ("jdk14".equals(type)) {
aggregatorConfig.setAggregatorClass("etm.contrib.aggregation.log.Jdk14LogAggregator");
} else if ("commons".equals(type)) {
aggregatorConfig.setAggregatorClass("etm.contrib.aggregation.log.CommonsLoggingAggregator");
}
addPropertyByAttribute(element, aggregatorConfig, "category", "logName");
addPropertyByAttribute(element, aggregatorConfig, "formatter-class", "formatterClass");
addPropertyByAttribute(element, aggregatorConfig, "filter-pattern", "filterPattern");
aMonitorConfig.appendAggregator(aggregatorConfig);
}
// plugins
if (jmxConfig.getLength() != 0) {
Element jmxConfigElement = ((Element) jmxConfig.item(0));
EtmPluginConfig config = new EtmPluginConfig();
config.setPluginClass(EtmMonitorJmxPlugin.class);
addPropertyByAttribute(jmxConfigElement, config, "mbeanServerName", "mbeanServerName");
addPropertyByAttribute(jmxConfigElement, config, "monitorObjectName", "monitorObjectName");
addPropertyByAttribute(jmxConfigElement, config, "measurementDomain", "measurementDomain");
addPropertyByAttribute(jmxConfigElement, config, "overwrite", "overwrite");
aMonitorConfig.addExtension(config);
}
}
protected void parseChain(NodeList aAggregatorChain, EtmMonitorConfig aMonitorConfig) {
Element element = ((Element) aAggregatorChain.item(0));
NodeList aggregatorRoot = element.getElementsByTagName("chain-root");
if (aggregatorRoot.getLength() == 0) {
EtmAggregatorConfig aggregatorConfig = new EtmAggregatorConfig();
aggregatorConfig.setAggregatorClass(RootAggregator.class);
aMonitorConfig.setAggregatorRoot(aggregatorConfig);
} else {
EtmAggregatorConfig rootConfig = extractAggregatorConfig((Element) aggregatorRoot.item(0));
aMonitorConfig.setAggregatorRoot(rootConfig);
}
NodeList aggregators = element.getElementsByTagName("chain-element");
for (int i = 0; i < aggregators.getLength(); i++) {
Element aggregator = (Element) aggregators.item(i);
EtmAggregatorConfig aggregatorConfig = extractAggregatorConfig(aggregator);
aMonitorConfig.appendAggregator(aggregatorConfig);
}
}
protected EtmPluginConfig extractPluginConfig(Element aPlugin) {
EtmPluginConfig pluginConfig = new EtmPluginConfig();
String pluginClass = aPlugin.getAttribute("class");
if (pluginClass != null && pluginClass.length() > 0) {
pluginConfig.setPluginClass(pluginClass);
} else {
throw new EtmConfigurationException("No valid plugin class found");
}
NodeList properties = aPlugin.getElementsByTagName("property");
for (int j = 0; j < properties.getLength(); j++) {
Element property = (Element) properties.item(j);
pluginConfig.addProperty(getAttribute(property, "name"), getNodeFirstChildTextValue(property));
}
return pluginConfig;
}
protected EtmAggregatorConfig extractAggregatorConfig(Element aAggregator) {
EtmAggregatorConfig aggregatorConfig = new EtmAggregatorConfig();
String aggregatorClass = aAggregator.getAttribute("class");
if (aggregatorClass != null && aggregatorClass.length() > 0) {
aggregatorConfig.setAggregatorClass(aggregatorClass);
} else {
throw new EtmConfigurationException("No valid aggregator class in cahin element found");
}
NodeList properties = aAggregator.getElementsByTagName("property");
for (int j = 0; j < properties.getLength(); j++) {
Element property = (Element) properties.item(j);
aggregatorConfig.addProperty(getAttribute(property, "name"), getNodeFirstChildTextValue(property));
}
return aggregatorConfig;
}
}
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