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package com.c2kernel.collection;
import java.util.StringTokenizer;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.entity.proxy.ItemProxy;
import com.c2kernel.graph.model.GraphableVertex;
import com.c2kernel.lookup.ItemPath;
import com.c2kernel.lookup.InvalidItemPathException;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.process.Gateway;
import com.c2kernel.property.Property;
import com.c2kernel.utils.Logger;
/**
* @version $Revision: 1.11 $ $Date: 2005/12/01 14:23:15 $
* @author $Author: abranson $
*/
//this extends Vertex for inherit the graph visualization
//this does not implement MemberObject anylonger. it is a java object.
//eventually the member object corba interface will be phased out.
public class AggregationMember extends GraphableVertex implements CollectionMember
{
private int mSystemKey = -1;
private ItemProxy mItem = null;
private Aggregation mCollection = null;
private String mClassProps = null;
String ItemName;
/**************************************************************************
*
**************************************************************************/
public AggregationMember()
{
super();
mSystemKey = -1;
mCollection = null;
}
@Override
public void setSystemKey(int sysKey) {
mSystemKey = sysKey;
ItemName = null;
}
public void setCollection(Aggregation aggregation)
{
mCollection = aggregation;
}
@Override
public void setClassProps(String props)
{
mClassProps = props;
}
@Override
public int getSystemKey()
{
return mSystemKey;
}
public Aggregation getCollection()
{
return mCollection;
}
@Override
public String getClassProps()
{
return mClassProps;
}
@Override
public void assignItem(int sysKey) throws MembershipException
{
if (sysKey > -1) {
if (mClassProps == null || getProperties() == null)
throw new MembershipException("ClassProps not yet set. Cannot check membership validity.");
//for each mandatory prop check if its in the member property and has the matching value
StringTokenizer sub = new StringTokenizer(mClassProps, ",");
while (sub.hasMoreTokens())
{
String aClassProp = sub.nextToken();
try {
String memberValue = (String)getProperties().get(aClassProp);
Property ItemProperty = (Property)Gateway.getStorage().get(sysKey, ClusterStorage.PROPERTY+"/"+aClassProp, null);
if (ItemProperty == null)
throw new MembershipException("Property "+aClassProp+ " does not exist for sysKey=" + sysKey );
if (ItemProperty.getValue() == null || !ItemProperty.getValue().equalsIgnoreCase(memberValue))
throw new MembershipException("Value of mandatory prop "+aClassProp+" does not match: " + ItemProperty.getValue()+"!="+memberValue);
}
catch (MembershipException ex) {
throw ex;
}
catch (Exception ex)
{
Logger.error(ex);
throw new MembershipException("Error checking properties");
}
}
}
mSystemKey = sysKey;
mItem = null;
ItemName = null;
}
@Override
public void clearItem() {
mSystemKey = -1;
mItem = null;
}
@Override
public ItemProxy resolveItem() throws ObjectNotFoundException {
if (mItem == null) {
try {
ItemPath path = new ItemPath(mSystemKey);
mItem = Gateway.getProxyManager().getProxy(path);
} catch (InvalidItemPathException ex) {
throw new ObjectNotFoundException("No member defined", "");
}
}
return mItem;
}
public String getItemName() {
if (ItemName == null) {
if (mSystemKey > -1) {
try {
ItemName = resolveItem().getName();
} catch (ObjectNotFoundException ex) {
Logger.error(ex);
ItemName = "Error ("+mSystemKey+")";
}
}
else
ItemName = "Empty";
}
return ItemName;
}
}
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