Synnefo » Pithos Web Client

/*

 * Copyright 2011-2012 GRNET S.A. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or

 * without modification, are permitted provided that the following

 * conditions are met:

 *

 *   1. Redistributions of source code must retain the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer.

 *

 *   2. Redistributions in binary form must reproduce the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer in the documentation and/or other materials

 *      provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * The views and conclusions contained in the software and

 * documentation are those of the authors and should not be

 * interpreted as representing official policies, either expressed

 * or implied, of GRNET S.A.

 */

package gr.grnet.pithos.web.client.foldertree;

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

import com.google.gwt.http.client.Response;

import com.google.gwt.json.client.JSONArray;

import com.google.gwt.json.client.JSONNumber;

import com.google.gwt.json.client.JSONParser;

import com.google.gwt.json.client.JSONString;

import com.google.gwt.json.client.JSONValue;

import gr.grnet.pithos.web.client.Resource;

public class FileVersions extends Resource {

        private List<Version> versions;

        public List<Version> getVersions() {

                return versions;

        }

        public static FileVersions createFromResponse(Response response) {

                FileVersions res =  new FileVersions();

                res.populate(response);

                return res;

        }

        private void populate(Response response) {

                versions = new ArrayList<Version>();

        JSONValue json = JSONParser.parseStrict(response.getText());

        JSONArray array = json.isObject().get("versions").isArray();

        if (array != null) {

            for (int i=0; i<array.size(); i++) {

                JSONArray o = array.get(i).isArray();

                if (o != null) {

                        int num = (int) o.get(0).isNumber().doubleValue();

                        Date date = null;

                        JSONNumber n = o.get(1).isNumber();

                        if (n != null)

                                date = new Date((long) (n.doubleValue() * 1000)); //Convert to millis

                        else {

                                JSONString s = o.get(1).isString();

                                if (s != null)

                                        date = new Date((long) (Double.parseDouble(s.stringValue()) * 1000));

                        }

                        Version v = new Version(num, date);

                        versions.add(v);

                }

            }

        }

        }

        @Override

        public Date getLastModified() {

                return null;

        }

}