com.noterik.bart.fs.script.FSScriptRequestHandler.java Source code

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Here is the source code for com.noterik.bart.fs.script.FSScriptRequestHandler.java

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/* 
* FSScriptRequestHandler.java
* 
* Copyright (c) 2012 Noterik B.V.
* 
* This file is part of smithers, related to the Noterik Springfield project.
*
* Smithers is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Smithers 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Smithers.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.noterik.bart.fs.script;

import org.dom4j.Document;
import org.dom4j.Node;

import com.noterik.bart.fs.fsxml.FSXMLRequestHandler;
import com.noterik.bart.fs.triggering.TriggerSystemManager;
import com.noterik.springfield.tools.HttpHelper;
import com.noterik.springfield.tools.XMLHelper;
import com.noterik.springfield.tools.fs.FSXMLBuilder;

/**
 * Handler for requests with mimemetype application/fsscript
 *
 * @author Derk Crezee <d.crezee@noterik.nl>
 * @copyright Copyright: Noterik B.V. 2008
 * @package com.noterik.bart.fs.script
 * @access private
 * @version $Id: FSScriptRequestHandler.java,v 1.4 2011-07-01 11:38:56 derk Exp $
 *
 */
public class FSScriptRequestHandler {
    /**
     * instance
     */
    private static FSScriptRequestHandler instance;

    public static FSScriptRequestHandler instance() {
        if (instance == null) {
            instance = new FSScriptRequestHandler();
        }
        return instance;
    }

    /**
     * Default constructor
     */
    private FSScriptRequestHandler() {
    }

    public String handlePOST(String uri, String value) {
        return handle(uri, value, "POST");
    }

    public String handlePUT(String uri, String value) {
        return handle(uri, value, "PUT");
    }

    // TODO: check (recursively) if resource was script, and remove it from the tirggering system
    public String handleDELETE(String uri) {
        TriggerSystemManager.getInstance().removeScript(uri);
        return FSXMLBuilder.getStatusMessage("script was successfully deleted", "", "");
    }

    private String handle(String uri, String value, String method) {
        // send to filessystem
        String fsResponse = "";
        if (method.equals("PUT")) {
            fsResponse = FSXMLRequestHandler.instance().handlePUT(uri, value);
        } else {
            fsResponse = FSXMLRequestHandler.instance().handlePOST(uri, value);
        }
        Document fsDoc = XMLHelper.asDocument(fsResponse);
        Node fsUriNode = fsDoc.selectSingleNode("//status/properties/uri");

        // initialize fsscript
        if (fsUriNode != null) {
            String scriptUri = fsUriNode.getText();
            Document doc = XMLHelper.asDocument(value);
            if (doc != null) {
                FSScript script = new FSScript(scriptUri, doc);
                TriggerSystemManager.getInstance().addScript(scriptUri, script);
                return FSXMLBuilder.getStatusMessage("The script was successfully added", "", scriptUri);
            } else {
                return FSXMLBuilder.getErrorMessage("403", "The value you sent is not valid",
                        "You have to POST a valid command XML", "http://teamelements.noterik.nl/team");
            }
        } else {
            return fsResponse;
        }
    }
}