/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * 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.
   */
  package org.argeo.eclipse.ui.jcr;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  
  import org.argeo.eclipse.ui.EclipseUiException;
  import org.argeo.jcr.JcrUtils;
  
  /** Simple JCR node content provider taking a list of String as base path. */
  public class SimpleNodeContentProvider extends AbstractNodeContentProvider {
  	private static final long serialVersionUID = -8245193308831384269L;
  	private final List<String> basePaths;
  	private Boolean mkdirs = false;
  
  	public SimpleNodeContentProvider(Session session, String... basePaths) {
  		this(session, Arrays.asList(basePaths));
  	}
  
  	public SimpleNodeContentProvider(Session session, List<String> basePaths) {
  		super(session);
  		this.basePaths = basePaths;
  	}
  
  	@Override
  	protected Boolean isBasePath(String path) {
  		if (basePaths.contains(path))
  			return true;
  		return super.isBasePath(path);
  	}
  
  	public Object[] getElements(Object inputElement) {
  		try {
  			List<Node> baseNodes = new ArrayList<Node>();
  			for (String basePath : basePaths)
  				if (mkdirs && !getSession().itemExists(basePath))
  					baseNodes.add(JcrUtils.mkdirs(getSession(), basePath));
  				else
  					baseNodes.add(getSession().getNode(basePath));
  			return baseNodes.toArray();
  		} catch (RepositoryException e) {
  			throw new EclipseUiException("Cannot get base nodes for " + basePaths,
  					e);
  		}
  	}
  
  	public List<String> getBasePaths() {
  		return basePaths;
  	}
  
  	public void setMkdirs(Boolean mkdirs) {
  		this.mkdirs = mkdirs;
  	}
  
  }