CompositeDIDLAdapterSupport.java
- /*
- * *********************************************************************************************************************
- *
- * blueMarine II: Semantic Media Centre
- * http://tidalwave.it/projects/bluemarine2
- *
- * Copyright (C) 2015 - 2021 by Tidalwave s.a.s. (http://tidalwave.it)
- *
- * *********************************************************************************************************************
- *
- * 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.
- *
- * *********************************************************************************************************************
- *
- * git clone https://bitbucket.org/tidalwave/bluemarine2-src
- * git clone https://github.com/tidalwave-it/bluemarine2-src
- *
- * *********************************************************************************************************************
- */
- package it.tidalwave.bluemarine2.upnp.mediaserver.impl.didl;
- import javax.annotation.Nonnegative;
- import javax.annotation.Nonnull;
- import javax.annotation.concurrent.Immutable;
- import org.fourthline.cling.support.model.BrowseFlag;
- import org.fourthline.cling.support.model.DIDLContent;
- import it.tidalwave.util.As;
- import it.tidalwave.util.Finder;
- import it.tidalwave.bluemarine2.model.spi.Entity;
- import it.tidalwave.bluemarine2.rest.spi.ResourceServer;
- import lombok.extern.slf4j.Slf4j;
- import static it.tidalwave.role.SimpleComposite._SimpleComposite_;
- import static it.tidalwave.util.FunctionalCheckedExceptionWrappers.*;
- /***********************************************************************************************************************
- *
- * @stereotype Role
- *
- * @author Fabrizio Giudici
- *
- **********************************************************************************************************************/
- @Immutable @Slf4j
- public abstract class CompositeDIDLAdapterSupport<T extends As> extends DIDLAdapterSupport<T>
- {
- public CompositeDIDLAdapterSupport (@Nonnull final T datum, @Nonnull final ResourceServer server)
- {
- super(datum, server);
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnull
- public ContentHolder toContent (@Nonnull final BrowseFlag browseFlag,
- @Nonnegative final int from,
- @Nonnegative final int maxResults)
- throws Exception
- {
- final DIDLContent content = new DIDLContent();
- int numberReturned = 0;
- int totalMatches = 0;
- switch (browseFlag)
- {
- case METADATA:
- totalMatches = numberReturned = 1;
- content.addObject(toObject());
- break;
- case DIRECT_CHILDREN:
- final Finder<Entity> finder = datum.as(_SimpleComposite_).findChildren();
- totalMatches = finder.count();
- finder.from(from)
- .max(maxResults)
- .results()
- .forEach(_c(child -> content.addObject(child.as(_DIDLAdapter_).toObject())));
- numberReturned = (int)content.getCount();
- break;
- default:
- throw new IllegalArgumentException(browseFlag.toString());
- }
- return new ContentHolder(content, numberReturned, totalMatches);
- }
- }