/******************************************************************************** | |
* Copyright (c) 2015-2018 Contributors to the Eclipse Foundation | |
* | |
* See the NOTICE file(s) distributed with this work for additional | |
* information regarding copyright ownership. | |
* | |
* This program and the accompanying materials are made available under the | |
* terms of the Eclipse Public License v. 2.0 which is available at | |
* http://www.eclipse.org/legal/epl-2.0. | |
* | |
* SPDX-License-Identifier: EPL-2.0 | |
* | |
********************************************************************************/ | |
package org.eclipse.mdm.businessobjects.boundary; | |
import java.util.List; | |
import java.util.Map; | |
import javax.ejb.EJB; | |
import javax.ejb.Stateless; | |
import javax.inject.Inject; | |
import org.eclipse.mdm.api.base.adapter.Attribute; | |
import org.eclipse.mdm.api.base.adapter.EntityType; | |
import org.eclipse.mdm.api.base.model.Channel; | |
import org.eclipse.mdm.api.base.model.Environment; | |
import org.eclipse.mdm.api.base.query.DataAccessException; | |
import org.eclipse.mdm.api.dflt.ApplicationContext; | |
import org.eclipse.mdm.api.dflt.EntityManager; | |
import org.eclipse.mdm.businessobjects.control.I18NActivity; | |
import org.eclipse.mdm.businessobjects.control.MDMEntityAccessException; | |
import org.eclipse.mdm.businessobjects.control.NavigationActivity; | |
import org.eclipse.mdm.businessobjects.control.SearchActivity; | |
import org.eclipse.mdm.businessobjects.utils.ServiceUtils; | |
import org.eclipse.mdm.connector.boundary.ConnectorService; | |
/** | |
* ChannelService Bean implementation with available {@link Channel} operations | |
* | |
* @author Sebastian Dirsch, Gigatronik Ingolstadt GmbH | |
* | |
*/ | |
@Stateless | |
public class ChannelService { | |
@Inject | |
private ConnectorService connectorService; | |
@EJB | |
private I18NActivity i18nActivity; | |
@EJB | |
private NavigationActivity navigationActivity; | |
@EJB | |
private SearchActivity searchActivity; | |
/** | |
* returns the matching {@link Channel}s using the given filter or all | |
* {@link Channel}s if no filter is available | |
* | |
* @param sourceName name of the source (MDM {@link Environment} name) | |
* @param filter filter string to filter the Channel result | |
* @return the found {@link Channel}s | |
*/ | |
public List<Channel> getChannels(String sourceName, String filter) { | |
try { | |
ApplicationContext context = this.connectorService.getContextByName(sourceName); | |
EntityManager em = context.getEntityManager() | |
.orElseThrow(() -> new MDMEntityAccessException("Entity manager not present!")); | |
if (filter == null || filter.trim().length() <= 0) { | |
return em.loadAll(Channel.class); | |
} | |
if (ServiceUtils.isParentFilter(context, filter, Channel.PARENT_TYPE_CHANNELGROUP)) { | |
String id = ServiceUtils.extactIdFromParentFilter(context, filter, Channel.PARENT_TYPE_CHANNELGROUP); | |
return this.navigationActivity.getChannels(sourceName, id); | |
} | |
return this.searchActivity.search(context, Channel.class, filter); | |
} catch (DataAccessException e) { | |
throw new MDMEntityAccessException(e.getMessage(), e); | |
} | |
} | |
/** | |
* returns a {@link Channel} identified by the given id. | |
* | |
* @param sourceName name of the source (MDM {@link Environment} name) | |
* @param channelId id of the {@link Channel} | |
* @return the matching {@link Channel} | |
*/ | |
public Channel getChannel(String sourceName, String channelId) { | |
try { | |
EntityManager em = this.connectorService.getContextByName(sourceName).getEntityManager() | |
.orElseThrow(() -> new MDMEntityAccessException("Entity manager not present!")); | |
return em.load(Channel.class, channelId); | |
} catch (DataAccessException e) { | |
throw new MDMEntityAccessException(e.getMessage(), e); | |
} | |
} | |
/** | |
* returns localized {@link Channel} attributes | |
* | |
* @param sourceName name of the source (MDM {@link Environment} name) | |
* @return the localized {@link Channel} attributes | |
*/ | |
public Map<Attribute, String> localizeAttributes(String sourceName) { | |
return this.i18nActivity.localizeAttributes(sourceName, Channel.class); | |
} | |
/** | |
* returns the localized {@link Channel} type name | |
* | |
* @param sourceName name of the source (MDM {@link Environment} name) | |
* @return the localized {@link Channel} type name | |
*/ | |
public Map<EntityType, String> localizeType(String sourceName) { | |
return this.i18nActivity.localizeType(sourceName, Channel.class); | |
} | |
} |