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// Portions Copyright [2020] Payara Foundation and/or affiliates
package com.sun.enterprise.v3.server;
import com.sun.enterprise.config.serverbeans.Cluster;
import com.sun.enterprise.config.serverbeans.Config;
import com.sun.enterprise.config.serverbeans.Configs;
import com.sun.enterprise.config.serverbeans.Domain;
import com.sun.enterprise.config.serverbeans.Server;
import com.sun.enterprise.config.serverbeans.SystemProperty;
import com.sun.enterprise.util.io.FileUtils;
import java.io.File;
import java.util.Collections;
import java.util.List;
import org.glassfish.hk2.runlevel.RunLevel;
import org.glassfish.internal.api.InitRunLevel;
import com.sun.enterprise.config.serverbeans.JavaConfig;
import com.sun.enterprise.universal.i18n.LocalStringsImpl;
import com.sun.enterprise.universal.process.ProcessUtils;
import com.sun.enterprise.util.net.NetUtils;
import com.sun.enterprise.util.SystemPropertyConstants;
import com.sun.appserv.server.util.Version;
import com.sun.enterprise.universal.io.SmartFile;
import fish.payara.enterprise.config.serverbeans.DeploymentGroup;
import java.util.ArrayList;
import org.jvnet.hk2.annotations.Optional;
import org.glassfish.hk2.api.PostConstruct;
import javax.inject.Inject;
import javax.inject.Named;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.config.support.TranslatedConfigView;
import org.glassfish.api.admin.ServerEnvironment;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
import java.util.logging.Logger;
import java.util.logging.Level;
import org.glassfish.kernel.KernelLoggerInfo;
import org.jvnet.hk2.config.types.Property;
/**
* Init run level service to take care of vm related tasks.
*
* @author Jerome Dochez
* @author Byron Nevins
*/
// TODO: eventually use CageBuilder so that this gets triggered when JavaConfig enters Habitat.
@Service
@RunLevel( value=InitRunLevel.VAL, mode=RunLevel.RUNLEVEL_MODE_NON_VALIDATING)
public class SystemTasksImpl implements SystemTasks, PostConstruct {
// in embedded environment, JavaConfig is pointless, so make this optional
@Inject @Named(ServerEnvironment.DEFAULT_INSTANCE_NAME) @Optional
JavaConfig javaConfig;
@Inject @Named(ServerEnvironment.DEFAULT_INSTANCE_NAME)
Server server;
@Inject
Domain domain;
Logger _logger = KernelLoggerInfo.getLogger();
private final static LocalStringsImpl strings = new LocalStringsImpl(SystemTasks.class);
@Override
public void postConstruct() {
setVersion();
setSystemPropertiesFromEnv();
setSystemPropertiesFromDomainXml();
resolveJavaConfig();
_logger.log(Level.FINE, "SystemTasks: loaded server named: {0}", server.getName());
}
@Override
public void writePidFile() {
File pidFile = null;
try {
pidFile = SmartFile.sanitize(getPidFile());
File pidFileCopy = new File(pidFile.getPath() + ".prev");
String pidString = getPidString();
FileUtils.writeStringToFile(pidString, pidFile);
FileUtils.writeStringToFile(pidString, pidFileCopy);
} catch (PidException pe) {
_logger.warning(pe.getMessage());
} catch (Exception e) {
_logger.warning(strings.get("internal_error", e));
} finally {
if (pidFile != null) {
FileUtils.deleteOnExit(pidFile);
}
}
}
private void setVersion() {
System.setProperty("glassfish.version", Version.getFullVersion());
}
/*
* Here is where we make the change Post-TP2 to *not* use JVM System Properties
*/
private void setSystemProperty(String name, String value) {
System.setProperty(name, value);
}
private void setSystemPropertiesFromEnv() {
// adding our version of some system properties.
setSystemProperty(SystemPropertyConstants.JAVA_ROOT_PROPERTY, System.getProperty("java.home"));
String hostname = "localhost";
try {
// canonical name checks to make sure host is proper
hostname = NetUtils.getCanonicalHostName();
} catch (Exception ex) {
if (_logger != null) {
_logger.log(Level.SEVERE, KernelLoggerInfo.exceptionHostname, ex);
}
}
if (hostname != null) {
setSystemProperty(SystemPropertyConstants.HOST_NAME_PROPERTY, hostname);
}
}
private void setSystemPropertiesFromDomainXml() {
// precedence order from high to low
// 0. server
// 1. cluster
// 2. -config or -config
// 3. deployment-group
// 4. domain
// so we need to add System Properties in *reverse order* to get the
// right precedence.
List domainSPList = domain.getSystemProperty();
List configSPList = getConfigSystemProperties();
Cluster cluster = server.getCluster();
List clusterSPList = null;
List depGroups = server.getDeploymentGroup();
List depGroupProperties = new ArrayList<>();
for (DeploymentGroup group : depGroups) {
depGroupProperties.addAll(group.getProperty());
}
if (cluster != null) {
clusterSPList = cluster.getSystemProperty();
}
List serverSPList = server.getSystemProperty();
setSystemProperties(domainSPList);
setProperties(depGroupProperties);
setSystemProperties(configSPList);
if (clusterSPList != null) {
setSystemProperties(clusterSPList);
}
setSystemProperties(serverSPList);
}
private List getConfigSystemProperties() {
try {
String configName = server.getConfigRef();
Configs configs = domain.getConfigs();
List configsList = configs.getConfig();
Config config = null;
for (Config c : configsList) {
if (c.getName().equals(configName)) {
config = c;
break;
}
}
return (List) (config != null ? config.getSystemProperty() : Collections.emptyList());
}
catch (Exception e) { //possible NPE if domain.xml has issues!
return Collections.emptyList();
}
}
private void resolveJavaConfig() {
if (javaConfig != null) {
Pattern p = Pattern.compile("-D([^=]*)=(.*)");
for (String jvmOption : javaConfig.getJvmOptions()) {
Matcher m = p.matcher(jvmOption);
if (m.matches()) {
String value = TranslatedConfigView.expandConfigValue(m.group(2));
setSystemProperty(m.group(1), value);
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Setting {0} = {1}", new Object[]{m.group(1), value});
}
}
}
}
}
private void setSystemProperties(List spList) {
for (SystemProperty sp : spList) {
String name = sp.getName();
String value = sp.getValue();
if (ok(name)) {
setSystemProperty(name, value);
}
}
}
private void setProperties(List propList) {
for (Property prop: propList) {
String name = prop.getName();
if (ok(name)) {
setSystemProperty(name, prop.getValue());
}
}
}
private String getPidString() {
return "" + ProcessUtils.getPid();
}
private File getPidFile() throws PidException {
try {
String configDirString = System.getProperty(SystemPropertyConstants.INSTANCE_ROOT_PROPERTY);
if (!ok(configDirString))
throw new PidException(strings.get("internal_error",
"Null or empty value for the System Property: "
+ SystemPropertyConstants.INSTANCE_ROOT_PROPERTY));
File configDir = new File(new File(configDirString), "config");
if (!configDir.isDirectory())
throw new PidException(strings.get("bad_config_dir", configDir));
File pidFile = new File(configDir, "pid");
if (pidFile.exists()) {
if (!pidFile.delete() || pidFile.exists()) {
throw new PidException(strings.get("cant_delete_pid_file", pidFile));
}
}
return pidFile;
}
catch (PidException pe) {
throw pe;
}
catch (Exception e) {
throw new PidException(e.getMessage());
}
}
private static boolean ok(String s) {
return s != null && s.length() > 0;
}
private static class PidException extends Exception {
public PidException(String s) {
super(s);
}
}
}
