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package com.c2kernel.lookup.ldap;
import java.util.ArrayList;
import java.util.StringTokenizer;
import com.c2kernel.common.ObjectNotFound;
import com.c2kernel.common.PersistencyException;
import com.c2kernel.entity.C2KLocalObject;
import com.c2kernel.lookup.ItemPath;
import com.c2kernel.lookup.Lookup;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.process.Gateway;
import com.c2kernel.process.auth.Authenticator;
import com.c2kernel.property.Property;
import com.c2kernel.utils.Logger;
public class LDAPClusterStorage extends ClusterStorage {
LDAPPropertyManager ldapStore;
@Override
public void open(Authenticator auth) throws PersistencyException {
Lookup lookup = Gateway.getLookup();
if (lookup instanceof LDAPLookup)
ldapStore = ((LDAPLookup)lookup).getPropManager();
else
throw new PersistencyException("Cannot use LDAP cluster storage without LDAP Lookup");
}
@Override
public void close() throws PersistencyException {
}
// introspection
@Override
public short queryClusterSupport(String clusterType) {
if (clusterType.equals(PROPERTY))
return READWRITE;
else
return NONE;
}
@Override
public String getName() {
return "LDAP Cluster Storage";
}
@Override
public String getId() {
return "LDAP";
}
// retrieve object by path
@Override
public C2KLocalObject get(ItemPath thisItem, String path) throws PersistencyException {
Logger.msg(6, "LDAPClusterStorage.get() - "+thisItem+"/"+path);
StringTokenizer tok = new StringTokenizer(path, "/");
int pathLength = tok.countTokens();
if (pathLength != 2)
throw new PersistencyException("Path length was invalid: "+path);
String type = tok.nextToken();
String objName = tok.nextToken();
C2KLocalObject newObj;
if (type.equals(PROPERTY)) {
try {
Property newProperty = ldapStore.getProperty(thisItem, objName);
newObj = newProperty;
} catch (ObjectNotFound ex) {
throw new PersistencyException("Property "+objName+" not found in "+thisItem);
}
}
else
throw new PersistencyException("Cluster type "+type+" not supported.");
return newObj;
}
// store object by path
@Override
public void put(ItemPath thisItem, C2KLocalObject obj) throws PersistencyException {
Logger.msg(6, "LDAPClusterStorage.put() - "+thisItem+"/"+ClusterStorage.getPath(obj));
String type = obj.getClusterType();
if (type.equals(PROPERTY)) {
try {
ldapStore.setProperty(thisItem, (Property)obj);
} catch (Exception e1) {
Logger.error(e1);
throw new PersistencyException("LDAPClusterStorage - could not write property");
}
}
else
throw new PersistencyException("Cluster type "+type+" not supported.");
}
// delete cluster
@Override
public void delete(ItemPath thisItem, String path) throws PersistencyException {
StringTokenizer tok = new StringTokenizer(path, "/");
int pathLength = tok.countTokens();
if (pathLength != 2)
throw new PersistencyException("Path length was invalid: "+path);
String type = tok.nextToken();
if (type.equals(PROPERTY)) {
try {
ldapStore.deleteProperty(thisItem, tok.nextToken());
} catch (Exception e1) {
Logger.error(e1);
throw new PersistencyException("LDAPClusterStorage - could not delete property");
}
}
else
throw new PersistencyException("Cluster type "+type+" not supported.");
}
/* navigation */
// directory listing
@Override
public String[] getClusterContents(ItemPath thisItem, String path) throws PersistencyException {
Logger.msg(6, "LDAPClusterStorage.getClusterContents() - "+thisItem+"/"+path);
StringTokenizer tok = new StringTokenizer(path, "/");
int pathLength = tok.countTokens();
if (pathLength > 1)
return new String[0];
String type = getClusterType(path);
try {
if (type.equals(PROPERTY))
return ldapStore.getPropertyNames(thisItem);
else
if (type.equals("")) { // root query
String[] allClusters = new String[0];
ArrayList<String> clusterList = new ArrayList<String>();
if (ldapStore.hasProperties(thisItem))
clusterList.add(PROPERTY);
allClusters = clusterList.toArray(allClusters);
return allClusters;
}
else
throw new PersistencyException("Cluster type "+type+" not supported.");
} catch (ObjectNotFound e) {
throw new PersistencyException("Item "+thisItem+" does not exist");
}
}
}
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