ListContent.java

/**
 * Koya is an alfresco module that provides a corporate orientated dataroom.
 *
 * Copyright (C) Itl Developpement 2014
 *
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any
 * later version.
 *
 * This program 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 Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see `<http://www.gnu.org/licenses/>`.
 */
package fr.itldev.koya.webscript.content;

import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.util.Pair;
import org.apache.log4j.Logger;
import org.springframework.extensions.webscripts.AbstractWebScript;
import org.springframework.extensions.webscripts.WebScriptException;
import org.springframework.extensions.webscripts.WebScriptRequest;
import org.springframework.extensions.webscripts.WebScriptResponse;

import fr.itldev.koya.alfservice.KoyaNodeService;
import fr.itldev.koya.exception.KoyaServiceException;
import fr.itldev.koya.model.KoyaNode;
import fr.itldev.koya.model.json.RestConstants;
import fr.itldev.koya.webscript.KoyaWebscript;

/**
 * 
 * Content Listing Webscript
 * 
 * 
 * 
 */
public class ListContent extends AbstractWebScript {

	private KoyaNodeService koyaNodeService;

	public void setKoyaNodeService(KoyaNodeService koyaNodeService) {
		this.koyaNodeService = koyaNodeService;
	}

	private Logger logger = Logger.getLogger(this.getClass());

	@Override
	public void execute(WebScriptRequest req, WebScriptResponse res) throws IOException {

		Map<String, String> urlParamsMap = KoyaWebscript.getUrlParamsMap(req);
		String response = "";

		try {
			NodeRef parent = koyaNodeService.getNodeRef((String) urlParamsMap.get(RestConstants.WSCONST_NODEREF));

			String filterExpr = processPatternFilter(urlParamsMap.get("filterExpr"));

			/**
			 * 
			 * TODO parameters not processed
			 * 
			 */
			String sortField = urlParamsMap.get("sortField");
			sortField = (!sortField.isEmpty()) ? sortField.replaceFirst("-", ":") : null;
			String strAscending = urlParamsMap.get("ascending");
			Boolean ascending = (strAscending != null) ? Boolean.valueOf(strAscending) : true;
			String typeFilter = urlParamsMap.get("typeFilter");

			/**
			 * Check mode
			 */

			Boolean onlyFolders = ((String) urlParamsMap.get(RestConstants.WSCONST_ONLYFOLDERS)).equals("true");

			Integer maxItems = null;
			Integer skipCount = null;

			maxItems = Integer.valueOf(urlParamsMap.get("maxItems"));
			skipCount = Integer.valueOf(urlParamsMap.get("skipCount"));

			logger.trace("listContent arguments skipcount=" + skipCount + ";maxItems=" + maxItems + ";onlyFolders="
					+ onlyFolders + ";filterExpr=" + filterExpr + ";sortField=" + sortField + ";ascending=" + ascending
					+ ";typeFilter=" + typeFilter);

			Pair<List<KoyaNode>, Pair<Integer, Integer>> listChildren = koyaNodeService.listChildrenPaginated(parent,
					skipCount, maxItems, onlyFolders, filterExpr, sortField, ascending);

			Map<String, Object> result = new HashMap<String, Object>();
			result.put("children", listChildren.getFirst());
			result.put("totalValues", listChildren.getSecond());

			response = KoyaWebscript.getObjectAsJson(result);

		} catch (KoyaServiceException ex) {
			throw new WebScriptException("KoyaError : " + ex.getErrorCode().toString());
		}
		res.setContentEncoding("UTF-8");
		res.setContentType("application/json;charset=UTF-8");
		res.getWriter().write(response);
	}

	private String processPatternFilter(String paramFilterExpr) {
		if (paramFilterExpr == null || paramFilterExpr.isEmpty()) {
			return null;
		}
		if (!paramFilterExpr.endsWith("*")) {
			paramFilterExpr += "*";
		}
		return paramFilterExpr;
	}

}