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package com.sun.enterprise.admin.util;
import com.sun.enterprise.util.io.DomainDirs;
import com.sun.enterprise.util.io.InstanceDirs;
import com.sun.enterprise.util.io.ServerDirs;
import java.io.File;
import java.io.IOException;
import org.glassfish.api.admin.CommandException;
/**
* Based on the presence or absence of values for:
* <ul>
* <li>domain directory parent (e.g., ${installDir}/domains
* <li>server name (domain or instance)
* <li>node directory
* <li>node name
* </ul>
*
* select the correct directories object for the requested domain or node.
*
* @author Byron Nevins
* @author Tim Quinn (just refactoring, rearranging the code to here)
*/
public class ServerDirsSelector {
private File userSpecifiedDomainDirParent;
private String userSpecifiedServerName;
private String userSpecifiedNodeDir; // nodeDirRoot
private String userSpecifiedNode;
private DomainDirs domainDirs = null;
private InstanceDirs instanceDirs = null;
/**
* Creates a selector for choosing the correct set of directories.
* @param domainDirParent parent of the domain directory file(s)
* @param serverName name of the requested instance or domain
* @param nodeDir path to the node directory
* @param node name of the node
* @return
* @throws CommandException
* @throws IOException
*/
public static ServerDirsSelector getInstance(
final File domainDirParent,
final String serverName,
final String nodeDir,
final String node) throws CommandException, IOException {
final ServerDirsSelector helper = new ServerDirsSelector(
domainDirParent,
serverName,
nodeDir,
node);
helper.validateDomainOrInstance();
return helper;
}
public ServerDirs dirs() {
return selectDirs();
}
private ServerDirsSelector(
final File domainDirParent,
final String serverName,
final String nodeDir,
final String node) {
userSpecifiedDomainDirParent = domainDirParent;
userSpecifiedServerName = serverName;
userSpecifiedNodeDir = nodeDir;
userSpecifiedNode = node;
}
/**
* make sure the parameters make sense for either an instance or a domain.
*/
private void validateDomainOrInstance() throws CommandException, IOException {
// case 1: since ddp is specified - it MUST be a domain
if (userSpecifiedDomainDirParent != null) {
domainDirs = new DomainDirs(userSpecifiedDomainDirParent, userSpecifiedServerName);
}
//case 2: if either of these are set then it MUST be an instance
else if (userSpecifiedNode != null || userSpecifiedNodeDir != null) {
instanceDirs = new InstanceDirs(userSpecifiedNodeDir, userSpecifiedNode, userSpecifiedServerName);
}
// case 3: nothing is specified -- use default domain as in v3.0
else if (userSpecifiedServerName == null) {
domainDirs = new DomainDirs(userSpecifiedDomainDirParent, userSpecifiedServerName);
}
// case 4: userSpecifiedServerName is set and the other 3 are all null
// we need to figure out if it's a DAS or an instance
else {
try {
domainDirs = new DomainDirs(userSpecifiedDomainDirParent, userSpecifiedServerName);
return;
}
catch (IOException e) {
// handled below
}
instanceDirs = new InstanceDirs(userSpecifiedNodeDir, userSpecifiedNode, userSpecifiedServerName);
}
}
public boolean isInstance() {
return instanceDirs != null;
}
private boolean isDomain() {
return domainDirs != null;
}
private ServerDirs selectDirs() {
if (isInstance())
return instanceDirs.getServerDirs();
else
return domainDirs.getServerDirs();
}
}