fr.aliasource.webmail.server.proxy.client.http.ListConversationsMethod.java Source code

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Here is the source code for fr.aliasource.webmail.server.proxy.client.http.ListConversationsMethod.java

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/* ***** BEGIN LICENSE BLOCK *****
 * Version: GPL 2.0
 *
 * The contents of this file are subject to the GNU General Public
 * License Version 2 or later (the "GPL").
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Initial Developer of the Original Code is
 *   MiniG.org project members
 *
 * ***** END LICENSE BLOCK ***** */

package fr.aliasource.webmail.server.proxy.client.http;

import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.httpclient.HttpClient;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

import fr.aliasource.webmail.client.rpc.UseCachedData;
import fr.aliasource.webmail.client.shared.Folder;
import fr.aliasource.webmail.server.proxy.client.ConversationReference;
import fr.aliasource.webmail.server.proxy.client.ConversationReferenceList;

public class ListConversationsMethod extends AbstractConversationMethod {

    // private String cachedFolderVersionPage;

    ListConversationsMethod(HttpClient hc, String token, String backendUrl) {
        super(hc, token, backendUrl, "/listConversations.do");
        // this.cachedFolderVersionPage = "inbox/-1/1";
    }

    public ConversationReferenceList listConversations(long lastSeenVersion, Folder folder, int page,
            int pageLength) {
        Map<String, String> params = new HashMap<String, String>();
        params.put("token", token);
        params.put("folder", folder.getName());
        params.put("page", "" + page);
        params.put("pageLength", "" + pageLength);

        // long versionToUse = lastSeenVersion;
        // String versionKey = folder.getName().toLowerCase() + "/"
        // + lastSeenVersion + "/" + page;
        // if (!versionKey.equals(cachedFolderVersionPage)) {
        // versionToUse = 0;
        // }
        // if (logger.isDebugEnabled()) {
        // logger.debug("[" + token + "] should query version " + versionToUse
        // + " (vkey: " + versionKey + ")");
        // }
        params.put("version", "-1"); // FIXME

        ConversationReferenceList ret = null;
        Document doc = execute(params);
        long version = 0;
        if (doc != null) {
            Element root = doc.getDocumentElement();
            if (root.hasAttribute("version")) {
                version = Long.parseLong(root.getAttribute("version"));
            } else {
                logger.warn("unversionned response");
            }
            NodeList crs = root.getElementsByTagName("cr");
            List<ConversationReference> cPage = new ArrayList<ConversationReference>(crs.getLength());
            Calendar cal = Calendar.getInstance();
            for (int i = 0; i < crs.getLength(); i++) {
                Element cr = (Element) crs.item(i);
                cPage.add(parseConversation(cal, cr));
            }
            ret = new ConversationReferenceList(cPage, Integer.parseInt(root.getAttribute("fullLength")));
            ret.setVersion(version);

            // cachedFolderVersionPage = folder.getName().toLowerCase() + "/"
            // + ret.getVersion() + "/" + page;

            return ret;

        } else {
            if (logger.isDebugEnabled()) {
                logger.debug("informing frontend to use cache");
            }
            throw new UseCachedData();
        }
    }

}