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package org.glassfish.loadbalancer.admin.cli;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import com.sun.enterprise.util.io.FileUtils;
import org.glassfish.api.I18n;
import org.glassfish.api.Param;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.PerLookup;
import com.sun.enterprise.config.serverbeans.Domain;
import org.glassfish.loadbalancer.config.LoadBalancer;
import java.net.URI;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.loadbalancer.admin.cli.reader.api.LoadbalancerReader;
import java.util.HashSet;
import java.util.List;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.ServerEnvironment;
import java.util.Properties;
import java.util.Set;
import java.util.logging.Level;
import org.glassfish.api.ActionReport;
import org.glassfish.api.admin.*;
import org.glassfish.internal.data.ApplicationRegistry;
import org.glassfish.loadbalancer.admin.cli.reader.impl.LoadbalancerReaderImpl;
import org.glassfish.loadbalancer.admin.cli.helper.LbConfigHelper;
import org.glassfish.loadbalancer.config.LbConfig;
import jakarta.inject.Inject;
/**
* Export load-balancer xml
*
* @author Kshitiz Saxena
*/
@Service(name = "export-http-lb-config")
@PerLookup
@I18n("export.http.lb.config")
@RestEndpoints({
@RestEndpoint(configBean=LbConfig.class,
opType=RestEndpoint.OpType.POST, // TODO: Should probable be GET
path="export-http-lb-config",
description="export-http-lb-config"),
@RestEndpoint(configBean=LoadBalancer.class,
opType=RestEndpoint.OpType.POST, // TODO: Should probable be GET
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");
FileUtils.deleteOnExit(tmpLbXmlFile);
} 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();
//Check for the case when lbtargets are provided
//In such a case, lbconfig will be null
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);
}
}
}
