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 /*
  * RHQ Management Platform
  * Copyright (C) 2005-2010 Red Hat, Inc.
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation version 2 of the License.
  *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
package org.rhq.plugins.kickstart;
Looks for koan on the machine so that it can do kickstart installations.
    private final Log log = LogFactory.getLog(KickstartDiscoveryComponent.class);
        SystemInfo sysinfo = context.getSystemInformation();
        //TODO This will really only work on rpm based systems.
        if (. == sysinfo.getOperatingSystemType()) {
            if (packageExists(sysinfo"koan")) {
                DiscoveredResourceDetails detail = new DiscoveredResourceDetails(context.getResourceType(),
                    "Kickstart""Kickstart""1""Koan Kickstart Engine"nullnull);
                set.add(detail);
            }
        }
        return set;
    }
    public boolean packageExists(SystemInfo sysinfoString packageName) {
        boolean exists = false;
        ProcessExecution pe = new ProcessExecution("/bin/rpm");
        pe.setCaptureOutput(true);
        pe.setCheckExecutableExists(true);
        pe.setArguments(Arrays.asList("-qa"packageName));
        ProcessExecutionResults pr = sysinfo.executeProcess(pe);
        if (pr.getExitCode() == 0) {
            String output = pr.getCapturedOutput();
            exists = output.contains(packageName);
        }
        return exists;
    }
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