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package com.sun.enterprise.admin.cli.cluster;
import com.sun.enterprise.admin.cli.remote.RemoteCLICommand;
import com.sun.enterprise.util.StringUtils;
import java.io.*;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.api.Param;
import org.glassfish.api.admin.*;
import org.glassfish.hk2.api.PerLookup;
/**
* Delete a local server instance.
* Wipeout the node dir if it is the last instance under the node
*
* Performance Note: getServerDirs().getServerDir() is all inlined by the JVM
* because the class instance is immutable.
*
* @author Byron Nevins
*/
@Service(name = "delete-local-instance")
@PerLookup
public class DeleteLocalInstanceCommand extends LocalInstanceCommand {
@Param(name = "instance_name", primary = true, optional = true)
private String instanceName0;
/** initInstance goes to great lengths to figure out the correct directory structure.
* We don't care about such errors. If the dir is not there -- then this is a
* simple error about trying to delete an instance that doesn't exist...
* Thank goodness for overriding methods!!
* @throws CommandException
*/
@Override
protected void initInstance() throws CommandException {
try {
super.initInstance();
}
catch (CommandException e) {
throw e;
}
catch (Exception e) {
throw new CommandException(Strings.get("DeleteInstance.noInstance"));
}
}
/**
* We most definitely do not want to create directories for nodes here!!
* @param f the directory to create
*/
@Override
protected boolean mkdirs(File f) {
return false;
}
@Override
protected void validate()
throws CommandException, CommandValidationException {
instanceName = instanceName0;
super.validate();
if (!StringUtils.ok(getServerDirs().getServerName()))
throw new CommandException(Strings.get("DeleteInstance.noInstanceName"));
File dasProperties = getServerDirs().getDasPropertiesFile();
if (dasProperties.isFile()) {
setDasDefaults(dasProperties);
}
if (!getServerDirs().getServerDir().isDirectory())
throw new CommandException(Strings.get("DeleteInstance.noWhack",
getServerDirs().getServerDir()));
}
/**
*/
@Override
protected int executeCommand()
throws CommandException, CommandValidationException {
if (isRunning()) {
throw new CommandException(Strings.get("DeleteInstance.running"));
}
doRemote();
whackFilesystem();
return SUCCESS;
}
/**
* Ask DAS to wipe it out from domain.xml
* If DAS isn't running -- ERROR -- return right away with a thrown Exception
* If DAS is running, and instance not registered on DAS, do not unregister instance -- OK
* If DAS is running, and instance is registered on DAS, then unregister instance -- OK
* - If _unregister-instance is successful - OK
* - If _unregister-instance fails - ERROR - Exception thrown
*/
private void doRemote() throws CommandException {
if (!isDASRunning()) {
String newString = Strings.get("DeleteInstance.remoteError",
programOpts.getHost(), "" + programOpts.getPort());
throw new CommandException(newString);
}
if (isRegisteredToDas()) {
RemoteCLICommand rc = new RemoteCLICommand("_unregister-instance", programOpts, env);
rc.execute("_unregister-instance", getServerDirs().getServerName());
}
}
private boolean isDASRunning() {
try {
getUptime();
return true;
} catch (CommandException ex) {
return false;
}
}
/**
* If the instance is not registered on DAS (server xml entry doesn't exist
* in domain.xml), the get command will throw a CommandException
*/
private boolean isRegisteredToDas() {
boolean isRegistered;
RemoteCLICommand rc;
String INSTANCE_DOTTED_NAME = "servers.server." + instanceName;
try {
rc = new RemoteCLICommand("get", this.programOpts, this.env);
rc.executeAndReturnOutput("get", INSTANCE_DOTTED_NAME);
isRegistered = true;
} catch (CommandException ce) {
isRegistered = false;
}
return isRegistered;
}
}