/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.juddi.function;
import java.util.Vector;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.juddi.datastore.DataStore;
import org.apache.juddi.datastore.DataStoreFactory;
import org.apache.juddi.datatype.KeyedReference;
import org.apache.juddi.datatype.RegistryObject;
import org.apache.juddi.datatype.request.FindQualifiers;
import org.apache.juddi.datatype.request.FindRelatedBusinesses;
import org.apache.juddi.datatype.response.RelatedBusinessInfos;
import org.apache.juddi.datatype.response.RelatedBusinessesList;
import org.apache.juddi.error.RegistryException;
import org.apache.juddi.registry.RegistryEngine;
import org.apache.juddi.util.Config;
/**
* @author Steve Viens (sviens@apache.org)
*/
public class FindRelatedBusinessesFunction extends AbstractFunction
{
// private reference to jUDDI Logger
private static Log log = LogFactory.getLog(FindRelatedBusinessesFunction.class);
/**
*
*/
public FindRelatedBusinessesFunction(RegistryEngine registry)
{
super(registry);
}
/**
*
*/
public RegistryObject execute(RegistryObject regObject)
throws RegistryException
{
FindRelatedBusinesses request = (FindRelatedBusinesses)regObject;
String generic = request.getGeneric();
String businessKey = request.getBusinessKey();
KeyedReference keyedRef = request.getKeyedReference();
FindQualifiers qualifiers = request.getFindQualifiers();
int maxRows = request.getMaxRows();
// aquire a jUDDI datastore instance
DataStore dataStore = DataStoreFactory.getDataStore();
try
{
dataStore.beginTrans();
Vector infoVector = null;
boolean truncatedResults = false;
// validate request parameters & execute
// nothing that requires validation has been identified
// perform the search for matching business entities (return only keys in requested order)
infoVector = dataStore.findRelatedBusinesses(businessKey,keyedRef,qualifiers);
if ((infoVector != null) && (infoVector.size() > 0))
{
// if the number of keys returned is greater than maxRows then truncate the results.
int rowCount = infoVector.size();
if ((maxRows > 0) && (maxRows < rowCount))
{
rowCount = maxRows;
truncatedResults = true;
}
}
// create a new BusinessInfos instance and stuff
// the new Vector of BusinessInfos into it.
RelatedBusinessInfos infos = new RelatedBusinessInfos();
infos.setRelatedBusinessInfoVector(infoVector);
dataStore.commit();
// create a new RelatedBusinessesList instance and
// stuff the new relatedBusinessInfoVector into it.
RelatedBusinessesList list = new RelatedBusinessesList();
list.setGeneric(generic);
list.setOperator(Config.getOperator());
list.setTruncated(truncatedResults);
list.setRelatedBusinessInfos(infos);
return list;
}
catch(RegistryException regex)
{
try { dataStore.rollback(); } catch(Exception e) { }
log.error(regex);
throw (RegistryException)regex;
}
catch(Exception ex)
{
try { dataStore.rollback(); } catch(Exception e) { }
log.error(ex);
throw new RegistryException(ex);
}
finally
{
if (dataStore != null)
dataStore.release();
}
}
/***************************************************************************/
/***************************** TEST DRIVER *********************************/
/***************************************************************************/
public static void main(String[] args)
{
// initialize the registry
RegistryEngine reg = new RegistryEngine();
reg.init();
try
{
}
catch (Exception ex)
{
// write execption to the console
ex.printStackTrace();
}
finally
{
// destroy the registry
reg.dispose();
}
}
}