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package com.sun.enterprise.admin.util;

import com.sun.enterprise.admin.remote.ServerRemoteRestAdminCommand;
import com.sun.enterprise.config.serverbeans.Server;
import com.sun.enterprise.util.LocalStringManagerImpl;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.logging.Logger;
import org.glassfish.api.ActionReport;
import org.glassfish.api.ActionReport.MessagePart;
import org.glassfish.api.admin.*;
import org.glassfish.hk2.api.ServiceLocator;
import com.sun.enterprise.util.StringUtils;

/**
 *
 * Causes execution of an administrative command on one or more remote instances to be
 * triggered from code running inside the DAS.
 * 
 * @author Vijay Ramachandran
 * @author mmares
 */
public class InstanceRestCommandExecutor extends ServerRemoteRestAdminCommand implements Runnable, InstanceCommand {

    private Server server;
    private ParameterMap params;
    private ActionReport aReport;
    private String commandName;
    private FailurePolicy offlinePolicy;
    private FailurePolicy failPolicy;
    private InstanceCommandResult result;

    private static final LocalStringManagerImpl strings =
                        new LocalStringManagerImpl(InstanceCommandExecutor.class);

    public InstanceRestCommandExecutor(ServiceLocator habitat,
                                   String name, FailurePolicy fail, FailurePolicy offline, Server server,
                                   String host, int port, Logger logger,
                                   ParameterMap p, ActionReport r, InstanceCommandResult res) throws CommandException {
        super(habitat, name, host, port, false, "admin", "", logger);
        this.server = server;
        this.params = p;
        this.aReport = r;
        this.commandName = name;
        this.offlinePolicy = offline;
        this.failPolicy = fail;
        this.result = res;
    }

    @Override
    public String getCommandOutput() { return this.output; }

    public Server getServer() { return server; }

    public ActionReport getReport() { return this.aReport; }
    
    private void copyActionReportContent(ActionReport source, ActionReport dest) {
        if (source == null || dest == null) {
            return;
        }
        dest.setActionExitCode(source.getActionExitCode());
        dest.setExtraProperties(source.getExtraProperties()); //No deep copy. Any change of source is unexpected
        copyMessagePart(source.getTopMessagePart(), dest.getTopMessagePart());
        List subReports = source.getSubActionsReport();
        if (subReports != null) {
            for (ActionReport subrep : subReports) {
                copyActionReportContent(subrep, dest.addSubActionsReport());
            }
        }
    }
    
    private void copyMessagePart(MessagePart source, MessagePart dest) {
        if (source == null || dest == null) {
            return;
        }
        dest.setMessage(source.getMessage());
        dest.setChildrenType(source.getChildrenType());
        Properties props = source.getProps();
        if (props != null) {
            for (Map.Entry entry : props.entrySet()) {
                dest.addProperty((String) entry.getKey(), (String) entry.getValue());
            }
        }
        for (MessagePart chmp : source.getChildren()) {
            copyMessagePart(chmp, dest.addChild());
        }
    }

    @Override
    public void run() {
        try {
            executeCommand(params);
            copyActionReportContent(super.getActionReport(), aReport);
            if(StringUtils.ok(getCommandOutput()))
                aReport.setMessage(strings.getLocalString("ice.successmessage", 
                        "{0}:\n{1}\n", getServer().getName(), getCommandOutput()));
        } catch (CommandException cmdEx) {
            ActionReport.ExitCode finalResult;
            if(cmdEx.getCause() instanceof java.net.ConnectException) {
                finalResult = FailurePolicy.applyFailurePolicy(offlinePolicy, ActionReport.ExitCode.FAILURE);
                if(!finalResult.equals(ActionReport.ExitCode.FAILURE))
                    aReport.setMessage(strings.getLocalString("clusterutil.warnoffline",
                        "WARNING: Instance {0} seems to be offline; command {1} was not replicated to that instance",
                            getServer().getName(), commandName));
                else
                    aReport.setMessage(strings.getLocalString("clusterutil.failoffline",
                            "FAILURE: Instance {0} seems to be offline; command {1} was not replicated to that instance",
                            getServer().getName(), commandName));
            } else {
                finalResult = FailurePolicy.applyFailurePolicy(failPolicy, ActionReport.ExitCode.FAILURE);
                if(finalResult.equals(ActionReport.ExitCode.FAILURE))
                    aReport.setMessage(strings.getLocalString("clusterutil.commandFailed",
                        "FAILURE: Command {0} failed on server instance {1}: {2}", commandName, getServer().getName(),
                            cmdEx.getMessage()));
                else
                    aReport.setMessage(strings.getLocalString("clusterutil.commandWarning",
                        "WARNING: Command {0} did not complete successfully on server instance {1}: {2}",
                            commandName, getServer().getName(), cmdEx.getMessage()));
            }
            aReport.setActionExitCode(finalResult);
        }
        result.setInstanceCommand(this);
    }
}




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