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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) [2016-2021] Payara Foundation and/or its affiliates. All rights reserved.
*
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
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* https://github.com/payara/Payara/blob/master/LICENSE.txt
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* file and include the License file at glassfish/legal/LICENSE.txt.
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package fish.payara.appserver.micro.services.asadmin;
import com.sun.enterprise.config.serverbeans.Domain;
import fish.payara.appserver.micro.services.PayaraInstanceImpl;
import fish.payara.micro.ClusterCommandResult;
import fish.payara.micro.data.InstanceDescriptor;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.logging.Level;
import java.util.logging.Logger;
import jakarta.inject.Inject;
import org.glassfish.api.ActionReport;
import org.glassfish.api.ActionReport.ExitCode;
import org.glassfish.api.I18n;
import org.glassfish.api.Param;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.api.admin.CommandLock;
import org.glassfish.api.admin.ExecuteOn;
import org.glassfish.api.admin.RestEndpoint;
import org.glassfish.api.admin.RestEndpoints;
import org.glassfish.api.admin.RuntimeType;
import org.glassfish.config.support.CommandTarget;
import org.glassfish.config.support.TargetType;
import org.glassfish.hk2.api.PerLookup;
import org.jvnet.hk2.annotations.Service;
/**{
this.instanceGroup = instanceGroup;
}
* Sends an asadmin command to members of the Domain Hazelcast Cluster
* @author Andrew Pielage
*/
@Service(name = "send-asadmin-command")
@PerLookup
@CommandLock(CommandLock.LockType.NONE)
@I18n("send.asadmin.command")
@ExecuteOn(value = RuntimeType.DAS)
@TargetType(value = CommandTarget.DAS)
@RestEndpoints({
@RestEndpoint(configBean = Domain.class,
opType = RestEndpoint.OpType.POST,
path = "send-asadmin-command",
description = "Sends an asadmin command to an instance")
})
public class SendAsadminCommand implements AdminCommand
{
@Inject
private PayaraInstanceImpl payaraMicro;
@Param(name = "targets", optional = true)
private String targets;
@Param(name = "command", optional = false)
private String command;
@Param(name = "parameters", optional = true, primary = true, multiple = true)
private String[] parameters;
@Param(name = "explicitTarget", optional = true, multiple = true)
private String[] explicitTargets;
@Param(name = "verbose", optional = true)
private boolean verbose;
@Param(name = "logOutput", optional = true)
private boolean logOutput;
@Override
public void execute(AdminCommandContext context)
{
final ActionReport actionReport = context.getActionReport();
// Check if the DAS is in a Hazelcast cluster
if (payaraMicro.isClustered())
{
// Get the subset of targets if provided, otherwise just get all clustered Micro instances
Map targetInstanceDescriptors = getTargetInstanceDescriptors(targets);
// Add any explicit targets to our list of target GUIDS
targetInstanceDescriptors.putAll(getExplicitTargetInstanceDescriptors(explicitTargets));
// If no targets have been found, throw an exception and fail out
if (targetInstanceDescriptors.isEmpty()) {
throw new IllegalArgumentException("No targets match!");
}
// Get the command parameters if provided, otherwise initialise to an empty String
if (parameters != null) {
parameters = parseParameters(parameters);
} else {
parameters = new String[]{""};
}
// Run the asadmin command against the targets (or all instances if no targets given)
Map> results = payaraMicro.executeClusteredASAdmin(
targetInstanceDescriptors.keySet(), command, parameters);
// Check the command results for any failures
if (results != null) {
List successMessages = new ArrayList<>();
List warningMessages = new ArrayList<>();
List failureMessages = new ArrayList<>();
for (Map.Entry> result : results.entrySet()) {
try
{
ClusterCommandResult commandResult = result.getValue().get();
switch (commandResult.getExitStatus())
{
case SUCCESS:
// Only get the success messages if we've asked for them
if (verbose || logOutput) {
// We only want to get the message, not the formatter name or exit code
String rawOutput = commandResult.getOutput();
String[] outputComponents = rawOutput.split(commandResult.getExitStatus().name());
String output = outputComponents.length > 1 ? outputComponents[1] : rawOutput;
// Box the name and add it to the output to help split up the individual responses,
// since the success messages don't inherently provide information about what instance
// the command was run on
String boxedInstanceName = boxInstanceName(output);
successMessages.add("\n"
+ targetInstanceDescriptors.get(result.getKey()).getInstanceName() + "\n"
+ boxedInstanceName);
}
break;
case WARNING:
// If one of the commands has not already failed, set the exit code as WARNING
if (actionReport.getActionExitCode() != ExitCode.FAILURE) {
actionReport.setActionExitCode(ExitCode.WARNING);
}
// We only want to get the message, not the formatter name or exit code
failureMessages.add("\n" + targetInstanceDescriptors.get(result.getKey()).getInstanceName()
+ ":" + processException(commandResult));
break;
case FAILURE:
actionReport.setActionExitCode(ExitCode.FAILURE);
// We only want to get the message, not the formatter name or exit code
failureMessages.add("\n" + targetInstanceDescriptors.get(result.getKey()).getInstanceName()
+ ":\n" + processException(commandResult));
break;
}
}
catch (InterruptedException | ExecutionException ex)
{
actionReport.setActionExitCode(ExitCode.FAILURE);
actionReport.failure(Logger.getLogger(SendAsadminCommand.class.getName()),
"Ran into an exception during execution: \n", ex);
}
}
switch (actionReport.getActionExitCode()) {
case SUCCESS:
actionReport.setMessage("Command executed successfully");
// Skip if neither verbose or logOutput were selected
if (verbose || logOutput) {
String output = "";
// Combine the success messages into one String
for (String successMessage : successMessages) {
output += "\n" + successMessage;
}
// Only print out the messages if verbose was chosen
if (verbose) {
actionReport.setMessage(output);
}
// Only log the messages if logOutput was chosen
if (logOutput) {
Logger.getLogger(SendAsadminCommand.class.getName()).log(Level.INFO, output);
}
}
break;
case WARNING:
actionReport.setMessage("Command completed with warnings: ");
for (String warningMessage : warningMessages) {
actionReport.appendMessage("\n" + warningMessage);
}
break;
case FAILURE:
actionReport.setMessage("Failures reported: ");
for (String failureMessage : failureMessages) {
actionReport.appendMessage("\n" + failureMessage);
}
break;
}
} else {
actionReport.setMessage("No results returned!");
actionReport.setActionExitCode(ExitCode.FAILURE);
}
} else {
actionReport.setMessage("Hazelcast not enabled");
actionReport.setActionExitCode(ExitCode.FAILURE);
}
}
/**
* Surrounds the provided instance name with a box to help dientify log outputs.
* @param instanceName The instance name to be boxed
* @return A String containing the boxed instance name
*/
private String boxInstanceName(String instanceName) {
String paddedInstanceName = "";
final int boxSize = instanceName.length() + 6;
// Draw the top of the box
for (int i = 0; i < boxSize; i++) {
if (i == 0 || i == boxSize - 1) {
paddedInstanceName += "+";
} else {
paddedInstanceName += "=";
}
}
// Move to the next line
paddedInstanceName += "\n";
// Draw the side of the box and add the padding
paddedInstanceName += "| ";
// Add the instanceName
paddedInstanceName += instanceName;
// Add the appending padding and draw the other side of the box
paddedInstanceName += " |";
//Move to the next line
paddedInstanceName += "\n";
// Draw the bottom of the box
for (int i = 0; i < boxSize; i++) {
if (i == 0 || i == boxSize - 1) {
paddedInstanceName += "+";
} else {
paddedInstanceName += "=";
}
}
return paddedInstanceName;
}
/**
* @param commandResult input
* @return readable error message from command result
*/
private String processException(ClusterCommandResult commandResult) {
String msg = commandResult.getOutput();
String[] msgs = msg.split(commandResult.getExitStatus().name());
return msgs.length > 1? msgs[1] : commandResult.getFailureCause().getMessage();
}
/**
* Gets the GUIDs of the instances in the cluster that match the targets specified by the --targets option
* @param targets The targets to match
* @return A map of the target instance GUIDs and their respective InstanceDescriptors
*/
private Map getTargetInstanceDescriptors(String targets) {
Map targetInstanceDescriptors = new HashMap<>();
// Get all of the clustered instances
Set instances = payaraMicro.getClusteredPayaras();
// Get the Micro instances that match the targets if provided, otherwise just get all Micro instances if no
// explicit targets have been defined
if (targets != null) {
// Split the targets into an array to separate them out
String[] splitTargets = targets.split(",");
for (InstanceDescriptor instance : instances) {
for (String target : splitTargets) {
// Split the group from the instance name if a group has been provided, otherwise just match instances
if (target.contains(":")) {
String splitTarget[] = target.split(":");
// Make sure it's in the correct format
if (splitTarget.length == 2) {
String targetGroup = splitTarget[0];
String targetInstance = splitTarget[1];
// Get the target GUIDS, taking into account wildcards
if (targetGroup.equals("*")) {
if (targetInstance.equals(("*"))) {
// Match everything
if (instance.isMicroInstance()) {
targetInstanceDescriptors.put(instance.getMemberUUID(), instance);
}
} else {
// Match on instance name only
if (instance.getInstanceName().equalsIgnoreCase(targetInstance) &&
instance.isMicroInstance()) {
targetInstanceDescriptors.put(instance.getMemberUUID(), instance);
break;
}
}
} else if (targetInstance.equals(("*"))) {
// Match on group name only
if (instance.getInstanceGroup().equalsIgnoreCase(targetGroup) &&
instance.isMicroInstance()) {
targetInstanceDescriptors.put(instance.getMemberUUID(), instance);
break;
}
} else {
// Match on group and instance name
if ((instance.getInstanceGroup().equalsIgnoreCase(targetGroup) &&
instance.getInstanceName().equalsIgnoreCase(targetInstance)) &&
instance.isMicroInstance()) {
targetInstanceDescriptors.put(instance.getMemberUUID(), instance);
break;
}
}
} else {
throw new IllegalArgumentException("Target contains more than one colon \":\", "
+ "this is not allowed");
}
} else {
// Match everything
if (target.equals(("*"))) {
if (instance.isMicroInstance()) {
targetInstanceDescriptors.put(instance.getMemberUUID(), instance);
}
} else {
// Match on instance name
if (instance.getInstanceName().equalsIgnoreCase(target) && instance.isMicroInstance()) {
targetInstanceDescriptors.put(instance.getMemberUUID(), instance);
break;
}
}
}
}
}
} else if (explicitTargets == null || explicitTargets.length == 0) {
for (InstanceDescriptor instance : instances) {
// Only send the command to Micro instances
if (instance.isMicroInstance()) {
targetInstanceDescriptors.put(instance.getMemberUUID(), instance);
}
}
}
return targetInstanceDescriptors;
}
/**
* Gets the GUIDs of the instances in the cluster that match the targets specified by the --explicitTarget option
* @param explicitTargets The explicit targets
* @return A map of the target instance GUIDs and their respective InstanceDescriptors
*/
private Map getExplicitTargetInstanceDescriptors(String[] explicitTargets) {
Map targetInstanceDescriptors = new HashMap<>();
if (explicitTargets == null) {
return targetInstanceDescriptors;
}
// Get all of the clustered instances
Set instances = payaraMicro.getClusteredPayaras();
// Loop through all instances to find any matching targets and add them to the list
for (String explicitTarget : explicitTargets) {
// Split the target into its individual components
String[] explicitTargetComponents = explicitTarget.split(":");
if (explicitTargetComponents.length == 3) {
String host = explicitTargetComponents[0];
String portNumber = explicitTargetComponents[1];
String instanceName = explicitTargetComponents[2];
for (InstanceDescriptor instance : instances) {
// Check if this instance's host name (or IP address), hazelcast port number, and name match
if ((instance.getHostName().getHostName().equals(host) ||
instance.getHostName().getHostAddress().equals(host)) &&
Integer.toString(instance.getHazelcastPort()).equals(portNumber) &&
instance.getInstanceName().equalsIgnoreCase(instanceName)) {
targetInstanceDescriptors.put(instance.getMemberUUID(), instance);
// We've found an instance that matches a target, so remove it from the list and move on to the
// next target
instances.remove(instance);
break;
}
}
} else {
throw new IllegalArgumentException("Explicit target needs to take the form of: "
+ "hostOrIpAddress:hazelcastPort:instanceName"
+ "\nMake sure there are exactly 3 colons (\":\")");
}
}
return targetInstanceDescriptors;
}
/**
* Helper method to parse the parameters into a usable format
* @param parameters The parameters to parse
* @return A String array containing the parsed parameters in a usable format
*/
private String[] parseParameters(String[] parameters) {
String primaryParameter = "";
List parsedParameters = new ArrayList<>();
// The admin console sends the parameters as one space separated string, so split it if necessary
if (parameters.length == 1 && parameters[0].contains(" ")) {
parameters = parameters[0].split(" ");
}
// Loop through all provided parameters and parse them
for (int i = 0; i < parameters.length; i++) {
// If the parameter does not contain an "=" sign, then this may be the command's primary parameter, otherwise
// just add it to the list
if (!parameters[i].contains("=")) {
// If it contains "--", then this is not the command's primary parameter
if (parameters[i].contains("--")) {
// Append the next parameter to this one to make a complete parameter and add it to the List
parsedParameters.add(parameters[i] + "=" + parameters[i + 1]);
// Skip the next parameter as we've already added it
i++;
} else if (primaryParameter.equals("")) {
// If this is the primary parameter, grab it for use later
primaryParameter = parameters[i];
} else {
// If we've reached here, that means a primary parameter has already been found, so fail out
throw new IllegalArgumentException("Parameter " + parameters[i] + "was not prepended with \"--\", and "
+ "a primary parameter has already been identified: " + primaryParameter);
}
} else {
parsedParameters.add(parameters[i]);
}
}
// Convert the parsedParameters to an array, adding the primary parameter to the end if we found one
if (!primaryParameter.equals("")) {
parameters = new String[parsedParameters.size() + 1];
parameters = parsedParameters.toArray(parameters);
parameters[parameters.length - 1] = primaryParameter;
} else {
parameters = new String[parsedParameters.size()];
parameters = parsedParameters.toArray(parameters);
}
return parameters;
}
}
