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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
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 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
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 * file and include the License file at packager/legal/LICENSE.txt.
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 */

package com.sun.enterprise.admin.servermgmt.cli;

import com.sun.enterprise.admin.util.ServerDirsSelector;
import com.sun.enterprise.util.OS;
import com.sun.enterprise.util.io.FileUtils;
import java.io.*;
import java.util.*;
import java.util.logging.*;

import org.glassfish.hk2.api.PerLookup;
import org.glassfish.api.Param;
import org.glassfish.api.admin.*;
import com.sun.enterprise.admin.cli.*;
import com.sun.enterprise.admin.servermgmt.services.ServiceFactory;
import com.sun.enterprise.admin.servermgmt.services.Service;
import com.sun.enterprise.admin.servermgmt.services.AppserverServiceType;
import com.sun.enterprise.admin.servermgmt.services.PlatformServicesInfo;
import com.sun.enterprise.universal.i18n.LocalStringsImpl;
import com.sun.enterprise.universal.io.SmartFile;
import com.sun.enterprise.util.SystemPropertyConstants;
import com.sun.enterprise.util.io.ServerDirs;

import static com.sun.enterprise.util.StringUtils.ok;

/**
 * Delete a "service" in the operating system.
 * @author Byron Nevins
 * @since November 18, 2010
 */
@org.jvnet.hk2.annotations.Service(name = "_delete-service")
@PerLookup
public final class DeleteServiceCommand extends CLICommand {
    @Param(name = "name", optional = true)
    private String serviceName;
    @Param(name = "domaindir", optional = true)
    private File userSpecifiedDomainDirParent;

    /*
     * The following parameters allow an unattended start-up any number of
     * ways to tell where the domain.xml file is that should be read for
     * client/instance-side security confir.
     */
    @Param(name = "domain_or_instance_name", primary = true, optional = true, alias = "domain_name")
    private String userSpecifiedServerName;
    @Param(name = "nodedir", optional = true, alias = "agentdir")
    private String userSpecifiedNodeDir;           // nodeDirRoot
    @Param(name = "node", optional = true, alias = "nodeagent")
    private String userSpecifiedNode;
    private static final LocalStringsImpl strings =
            new LocalStringsImpl(DeleteServiceCommand.class);
    private ServerDirs dirs;
    private ServerDirsSelector selector = null;

    /**
     */
    @Override
    protected void validate() throws CommandException {
        try {
            super.validate(); // pointless empty method but who knows what the future holds?


            // The order that you make these calls matters!!

            selector = ServerDirsSelector.getInstance(
                    userSpecifiedDomainDirParent,
                    userSpecifiedServerName,
                    userSpecifiedNodeDir,
                    userSpecifiedNode);
            dirs = selector.dirs();

            validateServiceName();
        }
        catch (CommandException e) {
            throw e;
        }
        catch (Exception e) {
            // plenty of RuntimeException possibilities!
            throw new CommandException(e.getMessage(), e);
        }
    }

    @Override
    protected int executeCommand() throws CommandException {
        try {
            final Service service = ServiceFactory.getService(dirs, getType());
            PlatformServicesInfo info = service.getInfo();
            info.setTrace(logger.isLoggable(Level.FINER));

            if (ok(serviceName))
                info.setServiceName(serviceName);

            if (programOpts.getPasswordFile() != null)
                info.setPasswordFile(SmartFile.sanitize(
                        new File(programOpts.getPasswordFile())));

            service.deleteService();
        }
        catch (Exception e) {
            // We only want to wrap the string -- not the Exception.
            // Otherwise the message that is printed out to the user will be like this:
            // java.lang.IllegalArgumentException: The passwordfile blah blah blah
            // What we want is:
            // The passwordfile blah blah blah
            // IT 8882

            String msg = e.getMessage();

            if (ok(msg))
                throw new CommandException(msg);
            else
                throw new CommandException(e);
        }
        return 0;
    }

    private void validateServiceName() throws CommandException {
        if (!ok(serviceName))
            serviceName = dirs.getServerDir().getName();

        // On Windows we need a legal filename for the service name.
        if(OS.isWindowsForSure() && !FileUtils.isFriendlyFilename(serviceName)) {
            throw new CommandException(strings.get("create.service.badServiceName", serviceName));
        }

        logger.finer("service name = " + serviceName);
    }

    private AppserverServiceType getType() {
        if (selector.isInstance())
            return AppserverServiceType.Instance;
        else
            return AppserverServiceType.Domain;
    }
}