/*
 * Copyright (C) 2005-2010 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
 */
package org.alfresco.repo.webdav;

import java.util.List;

import javax.servlet.http.HttpServletResponse;

import org.alfresco.model.ContentModel;
import org.alfresco.service.cmr.model.FileFolderService;
import org.alfresco.service.cmr.model.FileInfo;
import org.alfresco.service.cmr.model.FileNotFoundException;
import org.alfresco.service.cmr.repository.NodeRef;

/**
 * Implements the WebDAV DELETE method
 * 
 * @author gavinc
 */
public class DeleteMethod extends WebDAVMethod
{
    /**
     * Default constructor
     */
    public DeleteMethod()
    {
    }

    /**
     * Parse the request headers
     * 
     * @exception WebDAVServerException
     */
    protected void parseRequestHeaders() throws WebDAVServerException
    {
        parseIfHeader();
    }

    /**
     * Parse the request body
     * 
     * @exception WebDAVServerException
     */
    protected void parseRequestBody() throws WebDAVServerException
    {
        // Nothing to do in this method
    }

    /**
     * Execute the request
     * 
     * @exception WebDAVServerException
     */
    protected void executeImpl() throws WebDAVServerException, Exception
    {
        if (logger.isDebugEnabled())
        {
            logger.debug("WebDAV DELETE: " + getPath());
        }
        
        FileFolderService fileFolderService = getFileFolderService();

        NodeRef rootNodeRef = getRootNodeRef();

        String path = getPath();
        List<String> pathElements = getDAVHelper().splitAllPaths(path);
        FileInfo fileInfo = null;
        try
        {
            // get the node to delete
            fileInfo = fileFolderService.resolveNamePath(rootNodeRef, pathElements);
        }
        catch (FileNotFoundException e)
        {
            if (logger.isDebugEnabled())
            {
                logger.debug("Node not found: " + getPath());
            }
            throw new WebDAVServerException(HttpServletResponse.SC_NOT_FOUND);
        }

        checkNode(fileInfo);

        // ALF-7079 fix, working copies are not deleted at all
        if (!getNodeService().hasAspect(fileInfo.getNodeRef(), ContentModel.ASPECT_WORKING_COPY))
        {
            // delete it
            fileFolderService.delete(fileInfo.getNodeRef());
        }
    }
}