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package org.glassfish.flashlight.cli;
import com.sun.enterprise.config.serverbeans.Domain;
import com.sun.enterprise.util.*;
import org.glassfish.api.admin.*;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.api.ActionReport;
import org.glassfish.api.I18n;
import org.glassfish.api.Param;
import org.glassfish.config.support.*;
import org.glassfish.flashlight.impl.client.AgentAttacher;
import org.glassfish.internal.api.*;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.PerLookup;
import com.sun.enterprise.util.LocalStringManagerImpl;
import java.io.File;
import com.sun.enterprise.config.serverbeans.MonitoringService;
import javax.inject.Inject;
/**
* @author Sreenivas Munnangi (3.0)
* @author Byron Nevins (3.1+)
*/
@Service(name = "enable-monitoring")
@PerLookup
@I18n("enable.monitoring")
@ExecuteOn({RuntimeType.DAS, RuntimeType.INSTANCE})
@TargetType({CommandTarget.DAS, CommandTarget.STANDALONE_INSTANCE, CommandTarget.CLUSTER, CommandTarget.CONFIG})
@RestEndpoints({
@RestEndpoint(configBean=Domain.class,
opType=RestEndpoint.OpType.POST,
path="enable-monitoring",
description="enable-monitoring")
})
public class EnableMonitoring implements AdminCommand {
// do NOT inject this.
private MonitoringService ms;
@Inject
private Target targetService;
@Param(name = "target", optional = true, defaultValue = SystemPropertyConstants.DAS_SERVER_NAME)
String target;
@Param(optional = true)
private String pid;
@Param(optional = true)
private String options;
@Param(optional = true)
private String modules;
@Param(optional = true)
private Boolean mbean;
@Param(optional = true)
private Boolean dtrace;
final private LocalStringManagerImpl localStrings =
new LocalStringManagerImpl(EnableMonitoring.class);
public void execute(AdminCommandContext context) {
ActionReport report = context.getActionReport();
try {
ms = targetService.getConfig(target).getMonitoringService();
}
catch (Exception e) {
report.setMessage(localStrings.getLocalString("target.service.exception",
"Encountered exception trying to locate the MonitoringService element "
+ "in the target ({0}) configuration: {1}", target, e.getMessage()));
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
return;
}
int pidInt = -1;
try {
if (pid != null)
pidInt = Integer.parseInt(pid);
}
catch (Exception e) {
pidInt = -1;
}
if (options == null)
options = "";
if (!AgentAttacher.attachAgent(pidInt, options)) {
ActionReport.MessagePart part = report.getTopMessagePart().addChild();
part.setMessage(localStrings.getLocalString("attach.agent.exception",
"Can't attach the agent to the JVM."));
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
return;
}
// following ordering is deliberate to facilitate config change
// event handling by monitoring infrastructure
// for ex. by the time monitoring-enabled is true all its constituent
// elements should have been set to avoid multiple processing
// module monitoring levels
if ((modules != null) && (modules.length() > 0)) {
String[] strArr = modules.split(":");
String[] nvArr = null;
for (String nv : strArr) {
if (nv.length() > 0) {
nvArr = nv.split("=");
if (nvArr.length > 1) {
if (isValidString(nvArr[1])) {
setModuleMonitoringLevel(nvArr[0], nvArr[1], report);
}
}
else {
if (isValidString(nvArr[0])) {
setModuleMonitoringLevel(nvArr[0], "HIGH", report);
}
}
}
}
}
// mbean-enabled
if (mbean != null) {
MonitoringConfig.setMBeanEnabled(ms, mbean.toString(), report);
}
// dtrace-enabled
if (dtrace != null) {
MonitoringConfig.setDTraceEnabled(ms, dtrace.toString(), report);
}
// check and set monitoring-enabled to true
MonitoringConfig.setMonitoringEnabled(ms, "true", report);
}
private void setModuleMonitoringLevel(String moduleName, String level, ActionReport report) {
ActionReport.MessagePart part = report.getTopMessagePart().addChild();
if (!isValidString(moduleName)) {
part.setMessage(localStrings.getLocalString("enable.monitoring.invalid",
"Invalid module name {0}", moduleName));
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
}
if ((!isValidString(level)) || (!isValidLevel(level))) {
part.setMessage(localStrings.getLocalString("enable.monitoring.invalid",
"Invalid level {0} for module name {1}", level, moduleName));
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
}
MonitoringConfig.setMonitoringLevel(ms, moduleName, level, report);
}
private boolean isValidString(String str) {
return (str != null && str.length() > 0);
}
private boolean isValidLevel(String level) {
return ((level.equals("OFF")) || (level.equals("HIGH")) || (level.equals("LOW")));
}
static final String FLASHLIGHT_AGENT_PATH = "lib/monitor/flashlight-agent.jar";
}