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org.glassfish.loadbalancer.admin.cli.ExportHttpLbConfig Maven / Gradle / Ivy
package org.glassfish.loadbalancer.admin.cli;
import com.sun.enterprise.config.serverbeans.Domain;
import jakarta.inject.Inject;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URI;
import java.util.HashSet;
import java.util.List;
import java.util.Properties;
import java.util.Set;
import java.util.logging.Level;
import org.glassfish.api.ActionReport;
import org.glassfish.api.I18n;
import org.glassfish.api.Param;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.api.admin.RestEndpoint;
import org.glassfish.api.admin.RestEndpoints;
import org.glassfish.api.admin.RestParam;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.hk2.api.PerLookup;
import org.glassfish.internal.data.ApplicationRegistry;
import org.glassfish.loadbalancer.admin.cli.helper.LbConfigHelper;
import org.glassfish.loadbalancer.admin.cli.reader.api.LoadbalancerReader;
import org.glassfish.loadbalancer.admin.cli.reader.impl.LoadbalancerReaderImpl;
import org.glassfish.loadbalancer.config.LbConfig;
import org.glassfish.loadbalancer.config.LoadBalancer;
import org.jvnet.hk2.annotations.Service;
@Service (name = "export-http-lb-config" )
@PerLookup
@I 18n("export.http.lb.config" )
@RestEndpoints ({
@RestEndpoint (configBean=LbConfig.class,
opType=RestEndpoint.OpType.POST,
path="export-http-lb-config" ,
description="export-http-lb-config" ),
@RestEndpoint (configBean=LoadBalancer.class,
opType=RestEndpoint.OpType.POST,
path="export-http-lb-config" ,
description="export-http-lb-config" ,
params={
@RestParam (name="lbname" , value="$parent" )
})
})
public class ExportHttpLbConfig implements AdminCommand {
@Param (name = "lbtargets" , separator = ',' , optional = true )
List target;
@Param (name = "config" , optional = true )
String lbConfigName;
@Param (name = "lbname" , optional = true )
String lbName;
@Param (name = "retrievefile" , optional = true , defaultValue = "false" )
boolean retrieveFile;
@Param (name = "file_name" , optional = true , primary = true )
String fileName;
@Param (name = "property" , optional = true , separator = ':' )
Properties properties;
@Inject
Domain domain;
@Inject
ApplicationRegistry appRegistry;
@Inject
ServerEnvironment env;
private static final String DEFAULT_LB_XML_FILE_NAME =
"loadbalancer.xml" ;
@Override
public void execute (AdminCommandContext context) {
ActionReport report = context.getActionReport();
try {
String msg = process(context);
report.setActionExitCode(ActionReport.ExitCode.SUCCESS);
report.setMessage(msg);
} catch (Throwable t) {
String msg = LbLogUtil.getStringManager().getString("ExportHttpLbConfigFailed" , t.getMessage());
LbLogUtil.getLogger().log(Level.WARNING, msg);
if (LbLogUtil.getLogger().isLoggable(Level.FINE)) {
LbLogUtil.getLogger().log(Level.FINE, "Exception when exporting http lb config" , t);
}
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(t.getMessage());
report.setFailureCause(t);
}
}
public String process (AdminCommandContext context) throws Exception {
LoadbalancerReader lbr = null ;
if (lbName != null && lbConfigName == null && target == null ) {
LoadBalancer lb = LbConfigHelper.getLoadBalancer(domain, lbName);
lbr = LbConfigHelper.getLbReader(domain, appRegistry, lb.getLbConfigName());
} else if (lbConfigName != null && lbName == null && target == null ) {
lbr = LbConfigHelper.getLbReader(domain, appRegistry, lbConfigName);
} else if (target != null && lbName == null && lbConfigName == null ) {
Set clusters = new HashSet();
clusters.addAll(target);
lbr = new LoadbalancerReaderImpl(domain, appRegistry, clusters, properties);
} else {
String msg = LbLogUtil.getStringManager().getString("ExportHttpLbConfigInvalidArgs" );
throw new Exception(msg);
}
if (fileName == null ) {
String configName = lbr.getName();
if (configName != null ) {
fileName = DEFAULT_LB_XML_FILE_NAME + "." + configName;
} else {
fileName = DEFAULT_LB_XML_FILE_NAME;
}
}
File lbConfigFile = new File(fileName);
if (!lbConfigFile.isAbsolute() && !retrieveFile) {
File loadbalancerDir = new File(env.getInstanceRoot(),
"load-balancer" );
if (!loadbalancerDir.exists()) {
boolean isMkdirSuccess = loadbalancerDir.mkdir();
if (!isMkdirSuccess){
String msg = LbLogUtil.getStringManager().getString(
"directoryCreationFailed" );
throw new Exception(msg);
}
}
lbConfigFile = new File(loadbalancerDir, fileName);
}
File tmpLbXmlFile = null ;
if (retrieveFile) {
tmpLbXmlFile = File.createTempFile("load-balancer" , ".xml" );
tmpLbXmlFile.deleteOnExit();
} else {
if (lbConfigFile.exists()) {
String msg = LbLogUtil.getStringManager().getString(
"FileExists" , lbConfigFile.getPath());
throw new Exception(msg);
}
if (!(lbConfigFile.getParentFile().exists())) {
String msg = LbLogUtil.getStringManager().getString(
"ParentFileMissing" , lbConfigFile.getParent());
throw new Exception(msg);
}
tmpLbXmlFile = lbConfigFile;
}
FileOutputStream fo = null ;
try {
fo = new FileOutputStream(tmpLbXmlFile);
LbConfigHelper.exportXml(lbr, fo);
if (retrieveFile) {
retrieveLbConfig(context, lbConfigFile, tmpLbXmlFile);
}
LbConfig lbConfig = lbr.getLbConfig();
if (lbConfig != null ){
lbConfig.setLastExported();
}
String msg = LbLogUtil.getStringManager().getString(
"GeneratedFileLocation" , lbConfigFile.toString());
return msg;
} finally {
if (fo != null ) {
fo.close();
fo = null ;
}
}
}
private void retrieveLbConfig (AdminCommandContext context, File lbConfigFile,
File tmpLbXmlFile) throws Exception {
File localFile = lbConfigFile;
Properties props = new Properties();
File parent = localFile.getParentFile();
if (parent == null ) {
parent = localFile;
}
props.setProperty("file-xfer-root" , parent.getPath().replace('\\' , '/' ));
URI parentURI = parent.toURI();
try {
context.getOutboundPayload().attachFile(
"text/xml" ,
parentURI.relativize(localFile.toURI()),
"sync-load-balancer-xml" ,
props,
tmpLbXmlFile);
} catch (IOException ex) {
String msg = LbLogUtil.getStringManager().getString(
"RetrieveFailed" , lbConfigFile.getAbsolutePath());
throw new Exception(msg, ex);
}
}
}