brooklyn.entity.osgi.karaf.KarafSshDriver Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of brooklyn-software-osgi Show documentation
Brooklyn entities for OSGi container software processes
The newest version!
package brooklyn.entity.osgi.karaf;

import static java.lang.String.format;

import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import brooklyn.entity.basic.Entities;
import brooklyn.entity.drivers.downloads.DownloadResolver;
import brooklyn.entity.java.JavaSoftwareProcessSshDriver;
import brooklyn.location.basic.SshMachineLocation;
import brooklyn.util.net.Networking;
import brooklyn.util.ssh.BashCommands;

import com.google.common.collect.ImmutableList;

public class KarafSshDriver extends JavaSoftwareProcessSshDriver implements KarafDriver {

    // TODO getJmxJavaSystemProperties(), don't set via JAVA_OPTS; set ourselves manually
    // (karaf reads from props files)
    // but do set "java.rmi.server.hostname"

    public KarafSshDriver(KarafContainerImpl entity, SshMachineLocation machine) {
        super(entity, machine);
    }

    @Override
    public KarafContainerImpl getEntity() {
        return (KarafContainerImpl) super.getEntity();
    }

    @Override
    protected String getLogFileLocation() {
        return format("{%s}/data/karaf.out", getRunDir());
    }

    @Override
    public void install() {
        DownloadResolver resolver = Entities.newDownloader(this);
        List urls = resolver.getTargets();
        String saveAs = resolver.getFilename();
        setExpandedInstallDir(getInstallDir()+"/"+resolver.getUnpackedDirectoryName(format("apache-karaf-%s", getVersion())));
        
        List commands = ImmutableList.builder()
                .addAll(BashCommands.commandsToDownloadUrlsAs(urls, saveAs))
                .add(BashCommands.INSTALL_TAR)
                .add("tar xzfv " + saveAs)
                .build();
        
        newScript(INSTALLING)
                .failOnNonZeroResultCode()
                .body.append(commands)
                .execute();
    }

    @Override
    public void customize() {
        Map ports = new HashMap();
        ports.put("jmxPort", getJmxPort());
        ports.put("rmiRegistryPort", getRmiRegistryPort());

        Networking.checkPortsValid(ports);
        newScript(CUSTOMIZING).
                body.append(
                format("cd %s", getRunDir()),
                format("cp -R %s/{bin,etc,lib,system,deploy} . || exit $!", getExpandedInstallDir()),
                format("sed -i.bk 's/rmiRegistryPort = 1099/rmiRegistryPort = %s/g' etc/org.apache.karaf.management.cfg", getRmiRegistryPort()),
                format("sed -i.bk 's/rmiServerPort = 44444/rmiServerPort = %s/g' etc/org.apache.karaf.management.cfg", getJmxPort())
        ).execute();
    }

    @Override
    public void launch() {
        Map flags = new HashMap();
        flags.put("usePidFile", true);

        newScript(flags, LAUNCHING).
                body.append(
                "nohup ./bin/start"
        ).execute();
    }

    @Override
    public boolean isRunning() {
        // TODO Can we use the pidFile, auto-generated by launch?

        Integer pid = entity.getAttribute(KarafContainer.KARAF_PID);
        // This method is called on startup, before JMX is initialised, so pid won't always be available.
        if (pid != null) {
            return newScript(CHECK_RUNNING).
                    body.append(
                    format("ps aux | grep 'karaf' | grep %s > /dev/null", pid)
            ).execute() == 0;
        } else {
            // Simple method isn't available, use pid in instance.properties.
            return newScript(CHECK_RUNNING).
                    body.append(
                    format("cd %s/instances/",getRunDir()),
                    "[ $(uname) = \"Darwin\" ] && pid=$(sed -n -e 's/.*pid=\\([0-9]*\\)$/\\1/p' instance.properties) || pid=$(sed -r -n -e 's/.*pid=([0-9]*)$/\\1/p' instance.properties)",
                    "ps aux | grep 'karaf' | grep $(echo ${pid:-X}) > /dev/null"
            ).execute() == 0;
        }
    }

    @Override
    public void stop() {
        newScript(STOPPING)
                .environmentVariablesReset()
                .body.append(format("%s/bin/stop",getRunDir()))
            .execute();
    }

    @Override
    public void kill() {
        stop(); // TODO no pid file to easily do `kill -9`
    }

    @Override
    protected List getCustomJavaConfigOptions() {
        List result = new LinkedList();
        result.addAll(super.getCustomJavaConfigOptions());
        result.add("-Xms200m");
        result.add("-Xmx800m");
        result.add("-XX:MaxPermSize=400m");
        return result;
    }

}