content: /**
   *  Copyright (c) 2013-2016 Angelo ZERR.
   *  All rights reserved. This program and the accompanying materials
   *  are made available under the terms of the Eclipse Public License v1.0
   *  which accompanies this distribution, and is available at
   *  http://www.eclipse.org/legal/epl-v10.html
   *
   *  Contributors:
   *  Angelo Zerr <angelo.zerr@gmail.com> - initial API and implementation
   */
  package tern.eclipse.jface.fieldassist;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.eclipse.jface.fieldassist.IContentProposal;
  import org.eclipse.jface.fieldassist.IContentProposalProvider;
  
  import tern.TernException;
  import tern.server.ITernServer;
  import tern.server.protocol.TernDoc;
  
  public abstract class AbstractTernContentProposalProvider implements
  		IContentProposalProvider {
  
  	private static final IContentProposal[] EMPTY = new IContentProposal[0];
  
  	@Override
  	public IContentProposal[] getProposals(String contents, int position) {
  		ITernServer server = getServer();
  		TernDoc doc = createDoc();
  		try {
  			List<IContentProposal> proposals = new ArrayList<IContentProposal>();
  			server.request(doc, new TernContentProposalCollector(proposals));
  			return proposals.toArray(EMPTY);
  		} catch (TernException e) {
  			// TODO Auto-generated catch block
  			e.printStackTrace();
  		}
  		return EMPTY;
  	}
  
  	protected abstract ITernServer getServer();
  
  	protected abstract TernDoc createDoc();
  
  }
  