/**
* Copyright (C) 2012 JBoss Inc
*
* 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.jboss.dashboard.provider;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.jboss.dashboard.annotation.Install;
import org.jboss.dashboard.database.hibernate.HibernateTxFragment;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.hibernate.FlushMode;
import org.hibernate.Query;
import org.hibernate.Session;
import javax.annotation.PostConstruct;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Instance;
import javax.inject.Inject;
@ApplicationScoped
public class DataProviderManagerImpl implements DataProviderManager {
/** Logger */
private transient static Logger log = LoggerFactory.getLogger(DataProviderManagerImpl.class);
protected DataProviderType[] dataProviderTypeArray;
@Inject @Install
protected Instance<DataProviderType> dataProviderTypes;
@PostConstruct
protected void init() {
List<DataProviderType> dpTypeList = new ArrayList<DataProviderType>();
for (DataProviderType type : dataProviderTypes) dpTypeList.add(type);
dataProviderTypeArray = dpTypeList.toArray(new DataProviderType[dpTypeList.size()]);
}
public DataProviderType[] getDataProviderTypes() {
return dataProviderTypeArray;
}
public DataProviderType getProviderTypeByUid(String uid) {
if (StringUtils.isBlank(uid)) return null;
for (DataProviderType type : dataProviderTypeArray) {
if (type.getUid().equals(uid)) return type;
}
return null;
}
public DataProvider createDataProvider() {
DataProviderImpl p = new DataProviderImpl();
p.setDataLoader(dataProviderTypeArray[0].createDataLoader());
return p;
}
public Set<DataProvider> getAllDataProviders() throws Exception {
final Set<DataProvider> results = new HashSet<DataProvider>();
new HibernateTxFragment() {
protected void txFragment(Session session) throws Exception {
FlushMode flushMode = session.getFlushMode();
session.setFlushMode(FlushMode.COMMIT);
Query query = session.createQuery("from " + DataProviderImpl.class.getName() + " order by id");
query.setCacheable(true);
results.addAll(query.list());
session.setFlushMode(flushMode);
}}.execute();
return results;
}
public DataProvider getDataProviderById(final Long id) throws Exception {
final List<DataProvider> results = new ArrayList<DataProvider>();
new HibernateTxFragment() {
protected void txFragment(Session session) throws Exception {
FlushMode flushMode = session.getFlushMode();
session.setFlushMode(FlushMode.COMMIT);
StringBuffer sql = new StringBuffer();
sql.append("from ").append(DataProviderImpl.class.getName()).append(" as instance ");
sql.append("where instance.id = :id");
Query query = session.createQuery(sql.toString());
if (id != null) query.setLong("id", id.longValue());
query.setCacheable(true);
results.addAll(query.list());
session.setFlushMode(flushMode);
}}.execute();
if (results.size() > 0) return (DataProviderImpl) results.get(0);
else log.debug("Data provider with id =" + id + " does not exist.");
return null;
}
public DataProvider getDataProviderByCode(final String code) throws Exception {
final List<DataProvider> results = new ArrayList<DataProvider>();
new HibernateTxFragment() {
protected void txFragment(Session session) throws Exception {
FlushMode flushMode = session.getFlushMode();
session.setFlushMode(FlushMode.COMMIT);
StringBuffer sql = new StringBuffer();
sql.append("from ").append(DataProviderImpl.class.getName()).append(" as instance ");
sql.append("where instance.code = :code");
Query query = session.createQuery(sql.toString());
if (code != null) query.setString("code", code);
query.setCacheable(true);
results.addAll(query.list());
session.setFlushMode(flushMode);
}}.execute();
if (results.size() > 0) return (DataProviderImpl) results.get(0);
else log.debug("Data provider with code=" + code + " does not exist.");
return null;
}
public void removeDataProvider(DataProvider dataProvider) throws Exception {
dataProvider.delete();
}
public void sortDataProvidersByDescription(List<DataProvider> list, boolean ascending) {
DataProviderComparator comp = new DataProviderComparatorImpl();
comp.addSortCriteria(DataProviderComparator.CRITERIA_DESCRIPTION, ascending ? DataProviderComparator.ORDER_ASCENDING : DataProviderComparator.ORDER_DESCENDING);
Collections.sort(list, comp);
}
public void sortDataPropertiesByName(List<DataProperty> list, boolean ascending) {
DataPropertyComparator comp = new DataPropertyComparatorImpl();
comp.addSortCriteria(DataPropertyComparator.CRITERIA_NAME, ascending ? DataPropertyComparator.ORDER_ASCENDING : DataPropertyComparator.ORDER_DESCENDING);
Collections.sort(list, comp);
}
}