/** * ProjectManager.java * Created on 11.02.2003, 17:50:27 Alex * Package: net.sf.memoranda * * @author Alex V. Alishevskikh, alex@openmechanics.net * Copyright (c) 2003 Memoranda Team. http://memoranda.sf.net */package net.sf.memoranda;import java.util.Vector;import net.sf.memoranda.date.CalendarDate;import net.sf.memoranda.util.CurrentStorage;import net.sf.memoranda.util.Local;import net.sf.memoranda.util.Util;import nu.xom.Attribute;import nu.xom.Document;import nu.xom.Element;import nu.xom.Elements;/** * *//*$Id: ProjectManager.java,v 1.9 2005/12/01 08:12:26 alexeya Exp $*/public class ProjectManager {//    public static final String NS_JNPROJECT = "http://www.openmechanics.org/2003/jnotes-projects-file";    public static Document _doc = null;    static Element _root = null;        static {    	init();    }    public static void init() {        CurrentStorage.get().openProjectManager();        if (_doc == null) {            _root = new Element("projects-list");//            _root.addNamespaceDeclaration("jnotes", NS_JNPROJECT);//            _root.appendChild(new Comment("This is JNotes 2 data file. Do not modify."));            _doc = new Document(_root);            createProject("__default", Local.getString("Default project"), CalendarDate.today(), null);        }        else            _root = _doc.getRootElement();    }    public static Project getProject(String id) {        Elements prjs = _root.getChildElements("project");        for (int i = 0; i < prjs.size(); i++) {            String pid = ((Element) prjs.get(i)).getAttribute("id").getValue();            if (pid.equals(id)) {                return new ProjectImpl((Element) prjs.get(i));            }        }        return null;    }    public static Vector getAllProjects() {        Elements prjs = _root.getChildElements("project");        Vector v = new Vector();        for (int i = 0; i < prjs.size(); i++)            v.add(new ProjectImpl((Element) prjs.get(i)));        return v;    }    public static int getAllProjectsNumber() {		int i;        try {			i = ((Elements)_root.getChildElements("project")).size();		}		catch (NullPointerException e) {			i = 1;		}		return i;    }    public static Vector getActiveProjects() {        Elements prjs = _root.getChildElements("project");        Vector v = new Vector();        for (int i = 0; i < prjs.size(); i++) {            Project prj = new ProjectImpl((Element) prjs.get(i));            if (prj.getStatus() == Project.ACTIVE)                v.add(prj);        }        return v;    }		    public static int getActiveProjectsNumber() {        Elements prjs = _root.getChildElements("project");        int count = 0;        for (int i = 0; i < prjs.size(); i++) {            Project prj = new ProjectImpl((Element) prjs.get(i));            if (prj.getStatus() == Project.ACTIVE)                count++;        }        return count;    }    public static Project createProject(String id, String title, CalendarDate startDate, CalendarDate endDate) {        Element el = new Element("project");        el.addAttribute(new Attribute("id", id));        _root.appendChild(el);        Project prj = new ProjectImpl(el);        prj.setTitle(title);        prj.setStartDate(startDate);        prj.setEndDate(endDate);        CurrentStorage.get().createProjectStorage(prj);        return prj;    }    public static Project createProject(String title, CalendarDate startDate, CalendarDate endDate) {        return createProject(Util.generateId(), title, startDate, endDate);    }        public static void removeProject(String id) {        Project prj = getProject(id);        if (prj == null)            return;        History.removeProjectHistory(prj);        CurrentStorage.get().removeProjectStorage(prj);        Elements prjs = _root.getChildElements("project");        for (int i = 0; i < prjs.size(); i++) {            String pid = ((Element) prjs.get(i)).getAttribute("id").getValue();            if (pid.equals(id)) {                _root.removeChild(prjs.get(i));                return;            }        }    }}