/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.rest.providers;
import org.apache.log4j.Logger;
import org.dspace.content.Item;
import org.dspace.content.ItemIterator;
import org.dspace.core.Context;
import org.dspace.rest.entities.ItemEntity;
import org.dspace.rest.util.UserRequestParams;
import org.sakaiproject.entitybus.EntityReference;
import org.sakaiproject.entitybus.entityprovider.CoreEntityProvider;
import org.sakaiproject.entitybus.entityprovider.EntityProviderManager;
import org.sakaiproject.entitybus.entityprovider.capabilities.Createable;
import org.sakaiproject.entitybus.entityprovider.capabilities.Deleteable;
import org.sakaiproject.entitybus.entityprovider.capabilities.Updateable;
import org.sakaiproject.entitybus.entityprovider.search.Search;
import org.sakaiproject.entitybus.exception.EntityException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
public class ItemsProvider extends AbstractBaseProvider implements CoreEntityProvider, Createable, Updateable, Deleteable {
private static Logger log = Logger.getLogger(ItemsProvider.class);
public ItemsProvider(EntityProviderManager entityProviderManager) throws NoSuchMethodException {
super(entityProviderManager);
entityProviderManager.registerEntityProvider(this);
processedEntity = ItemEntity.class;
func2actionMapGET.put("getBundles", "bundles");
func2actionMapGET.put("getMetadataFields", "metadatafields");
func2actionMapPOST.put("createItem", "");
func2actionMapPOST.put("createMetadata", "metadata");
inputParamsPOST.put("createMetadata", new String[]{"id", "value"});
func2actionMapPUT.put("editMetadata", "metadata");
func2actionMapDELETE.put("removeMetadata", "metadata");
func2actionMapDELETE.put("removeItem", "");
entityConstructor = processedEntity.getDeclaredConstructor();
initMappings(processedEntity);
}
public String getEntityPrefix() {
return "items";
}
public boolean entityExists(String id) {
log.info(userInfo() + "item_exists:" + id);
try {
Integer.parseInt(id);
} catch (NumberFormatException ex) {
return true;
}
Context context = null;
try {
context = new Context();
refreshParams(context);
Item comm = Item.find(context, Integer.parseInt(id));
return comm != null ? true : false;
} catch (SQLException ex) {
throw new EntityException("Internal server error", "SQL error", 500);
} finally {
removeConn(context);
}
}
public Object getEntity(EntityReference ref) {
log.info(userInfo() + "get_item:" + ref.getId());
String segments[] = getSegments();
if (segments.length > 3) {
return super.getEntity(ref);
} else {
try {
Integer.parseInt(ref.getId());
} catch (NumberFormatException ex) {
return super.getEntity(ref, ref.getId());
}
}
Context context = null;
try {
context = new Context();
UserRequestParams uparams = refreshParams(context);
if (entityExists(ref.getId())) {
return new ItemEntity(ref.getId(), context, uparams);
}
} catch (SQLException ex) {
throw new EntityException("Internal server error", "SQL error", 500);
} finally {
removeConn(context);
}
throw new IllegalArgumentException("Invalid id:" + ref.getId());
}
public List<?> getEntities(EntityReference ref, Search search) {
log.info(userInfo() + "list_items");
Context context = null;
try {
context = new Context();
UserRequestParams uparams = refreshParams(context);
List<Object> entities = new ArrayList<Object>();
ItemIterator items = Item.findAll(context);
while (items.hasNext()) {
entities.add(new ItemEntity(items.next(), context, uparams));
}
return entities;
} catch (SQLException ex) {
throw new EntityException("Internal server error", "SQL error", 500);
} finally {
removeConn(context);
}
}
public Object getSampleEntity() {
return new ItemEntity();
}
}