/**
*
* Copyright
* 2009-2015 Jayway Products AB
* 2016-2017 Föreningen Sambruk
*
* Licensed under AGPL, Version 3.0 (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.gnu.org/licenses/agpl.txt
*
* 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 se.streamsource.streamflow.web.rest.resource.workspace.cases;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;
import org.qi4j.api.entity.Identity;
import org.qi4j.api.injection.scope.Service;
import org.qi4j.api.value.ValueBuilder;
import org.restlet.Request;
import org.restlet.data.MediaType;
import org.restlet.data.Status;
import org.restlet.ext.fileupload.RestletFileUpload;
import org.restlet.representation.Representation;
import org.restlet.resource.ResourceException;
import org.restlet.service.MetadataService;
import se.streamsource.dci.api.RoleMap;
import se.streamsource.dci.restlet.server.CommandQueryResource;
import se.streamsource.dci.restlet.server.api.SubResources;
import se.streamsource.dci.value.link.LinksValue;
import se.streamsource.streamflow.api.workspace.cases.attachment.AttachmentDTO;
import se.streamsource.streamflow.web.context.LinksBuilder;
import se.streamsource.streamflow.web.context.workspace.cases.attachment.AttachmentsContext;
import se.streamsource.streamflow.web.domain.entity.form.SubmittedFormsQueries;
import se.streamsource.streamflow.web.domain.structure.attachment.AttachedFile;
import se.streamsource.streamflow.web.domain.structure.attachment.Attachment;
import se.streamsource.streamflow.web.domain.structure.attachment.Attachments;
import se.streamsource.streamflow.web.domain.structure.conversation.Conversation;
import se.streamsource.streamflow.web.domain.structure.conversation.Conversations;
import se.streamsource.streamflow.web.domain.structure.conversation.Message;
import se.streamsource.streamflow.web.domain.structure.conversation.Messages;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import static se.streamsource.dci.api.RoleMap.*;
/**
* JAVADOC
*/
public class AttachmentsResource
extends CommandQueryResource
implements SubResources
{
@Service
FileItemFactory factory;
@Service
MetadataService metadata;
public AttachmentsResource()
{
super( AttachmentsContext.class );
}
public LinksValue index()
{
LinksBuilder links = new LinksBuilder( module.valueBuilderFactory() );
ValueBuilder<AttachmentDTO> builder = module.valueBuilderFactory().newValueBuilder( AttachmentDTO.class );
for (Attachment attachment : context(AttachmentsContext.class).index())
{
AttachedFile.Data data = (AttachedFile.Data) attachment;
builder.prototype().text().set( data.name().get() );
builder.prototype().href().set( ((Identity) attachment).identity().get() + "/" );
builder.prototype().id().set( ((Identity) attachment).identity().get() );
builder.prototype().size().set( data.size().get() );
builder.prototype().modificationDate().set( data.modificationDate().get() );
builder.prototype().mimeType().set( data.mimeType().get() );
builder.prototype().rel().set( "attachment" );
links.addLink( builder.newInstance() );
}
Attachments attachments = RoleMap.role( Attachments.class );
try
{
for( Conversation conversation : ((Conversations.Data)attachments).conversations() )
{
for( Message message : ((Messages.Data)conversation).messages() )
{
for( Attachment attachment : ((Attachments.Data)message).attachments() )
{
AttachedFile.Data data = (AttachedFile.Data) attachment;
builder.prototype().text().set( data.name().get() );
builder.prototype().href().set( "../conversations/"
+ ((Identity) conversation).identity().get()
+ "/messages/"+ ((Identity) message).identity().get()
+ "/attachments/" + ((Identity) attachment).identity().get() + "/" );
builder.prototype().id().set( ((Identity) attachment).identity().get() );
builder.prototype().size().set( data.size().get() );
builder.prototype().modificationDate().set( data.modificationDate().get() );
builder.prototype().mimeType().set( data.mimeType().get() );
if( partOfFormSubmission( attachments, attachment ) )
{
builder.prototype().rel().set( "submittedform" );
} else
{
builder.prototype().rel().set( "conversation" );
}
links.addLink( builder.newInstance() );
}
}
}
} catch ( ClassCastException cce )
{
// do nothing
//System.out.println( "We are on conversation attachments already - This classcast exception was expected." );
}
return links.newLinks();
}
private boolean partOfFormSubmission( Attachments attachments, Attachment attachment )
{
try
{
return ((SubmittedFormsQueries)attachments).getAttachmentFieldValue( ((Identity)attachment).identity().get() ) != null;
} catch( ClassCastException cce )
{
// do nothing
// we are on the wrong resource level - probably organization attachments like pdf templates
}
return false;
}
public void createattachment() throws IOException, URISyntaxException
{
Request request = Request.getCurrent();
Representation representation = request.getEntity();
if (MediaType.MULTIPART_FORM_DATA.equals( representation.getMediaType(), true ))
{
// The Apache FileUpload project parses HTTP requests which
// conform to RFC 1867, "Form-based File Upload in HTML". That
// is, if an HTTP request is submitted using the POST method,
// and with a content type of "multipart/form-data", then
// FileUpload can parse that request, and get all uploaded files
// as FileItem.
// 2/ Create a new file upload handler based on the Restlet
// FileUpload extension that will parse Restlet requests and
// generates FileItems.
RestletFileUpload upload = new RestletFileUpload( factory );
// 3/ Request is parsed by the handler which generates a
// list of FileItems
try
{
List items = upload.parseRequest( request );
// Process only the uploaded item called "file" and
// save it in the store
boolean found = false;
for (final Iterator it = items.iterator(); it
.hasNext()
&& !found;)
{
FileItem fi = (FileItem) it.next();
if (fi.getFieldName().equals( "file" ))
{
found = true;
Attachment attachment = context(AttachmentsContext.class).createAttachment( fi.getInputStream() );
// Set name
attachment.changeName( fi.getName() );
// Set modification date
attachment.changeModificationDate( new Date() );
// Set size
attachment.changeSize( fi.getSize() );
// Try to set mimetype
//MediaType mediaType = RoleMap.role( Application.class ).getMetadataService().getMediaType( fi.getName().split( "\\." )[1] );
MediaType mediaType = metadata.getMediaType( fi.getName().split( "\\." )[1] );
if (mediaType != null)
attachment.changeMimeType( mediaType.getName() );
}
}
} catch (FileUploadException e)
{
throw new ResourceException( Status.CLIENT_ERROR_BAD_REQUEST, "Could not upload file", e );
}
} else
{
InputStream in = representation.getStream();
Attachment attachment = context(AttachmentsContext.class).createAttachment( in );
attachment.changeName( "New attachment" );
attachment.changeModificationDate( new Date() );
}
}
public void resource( String segment ) throws ResourceException
{
findManyAssociation( role( Attachments.Data.class ).attachments(), segment );
subResource( AttachmentResource.class );
}
}