mypreferencemanager.java

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/*
 * MyPreferenceManager.java
 *
 * Created on December 31, 2005, 1:16 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package net.jxta.myjxta.util.preferences;

import net.jxta.ext.config.Resource;
import net.jxta.ext.config.ResourceNotFoundException;
import net.jxta.logging.Logging;
import net.jxta.myjxta.MyJXTA;
import net.jxta.myjxta.util.Env;

import java.awt.*;
import java.util.*;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * @author polo
 */
public class MyPreferenceManager {

    private Resource res = null;
    private static final Logger LOG = Logger.getLogger(MyPreferenceManager.class.getName());
    public static final String ROOT = "myjxtaPrefs";
    public static final String PREFERENCES = "preferences";
    public static final String CATEGORY = "category";
    public static final String PREFERENCE_SET = "preferenceSet";
    public static final String PREFERENCE = "preference";
    public static final String SEP = "/";
    public static final String ATTRIBUTE_NAME = "@name";
    public static final String ATTRIBUTE_DESCRIPTION = "@description";
    public static final String ATTRIBUTE_VISIBLE = "@visible";
    public static final String ATTRIBUTE_LABEL = "@label";
    public static final String ATTRIBUTE_VALUE = "@value";
    public static final String ATTRIBUTE_ENABLE = "@enable";
    public static final String ATTRIBUTE_ICON = "@icon";
    public static final String ATTRIBUTE_TOOLTIP = "@tooltip";
    public static final String ATTRIBUTE_CLASS = "@class";
    public static final String ATTRIBUTE_DIMENSION = "@dimension";

    public static final String DEFAULT_PREFSET_CLASS_NAME = DefaultPreferenceSet.class.getName();

    public static final String CATEGORY_GENERAL = "General";
    public static final String CATEGORY_PLUGINS = "plugins";

    public static String PREFSET_LEGACY = null;

// todo set the defalt icon

    public static final String DEFAULT_ICON = "TreeTable.PeerPresent";

    public static final String PREFERENCESET_LEGACY = "General.Legacy";
    public static final String PREFERENCESET_PLUGINPATHS = "plugins.paths";
    public static final String PREFERENCE_CHIME = "General.Legacy.Chime";
    public static final String PREFERENCE_INSTALL = "plugins.paths.install";

    private List<String> categoryList = null;
    private LinkedHashMap<String, PreferenceSet> prefSetTable = null;


    static private MyPreferenceManager myinstance = null;

    static public MyPreferenceManager getInstance() {

        if (myinstance == null) {

            myinstance = new MyPreferenceManager();
        }
        return myinstance;
    }

    public MyJXTA getMyJxta() {
        return MyJXTA.getTheInstance();
    }


    public static String buildPath() {
        return buildPath(null, null, null, null);
    }

    public static String buildPath(String categoryName) {
        return buildPath(categoryName, null, null, null);
    }

    public static String buildPath(String categoryName, String preferenceSetName) {
        return buildPath(categoryName, preferenceSetName, null, null);
    }

    public static String buildPath(String categoryName, String preferenceSetName, String preferenceName) {
        return buildPath(categoryName, preferenceSetName, preferenceName, null);
    }

    public static String buildPath(String categoryName, String preferenceSetName, String preferenceName, String attr) {
        StringBuffer rtn = new StringBuffer(ROOT);
        rtn.append(SEP);
        rtn.append(PREFERENCES);
        if (categoryName != null) {
            rtn.append(SEP);
            rtn.append(CATEGORY);
            rtn.append("[");
            rtn.append(ATTRIBUTE_NAME);
            rtn.append("=\"");
            rtn.append(categoryName);
            rtn.append("\"]");
            if (preferenceSetName != null) {
                rtn.append(SEP);
                rtn.append(PREFERENCE_SET);
                rtn.append("[");
                rtn.append(ATTRIBUTE_NAME);
                rtn.append("=\"");
                rtn.append(preferenceSetName);
                rtn.append("\"]");
                if (preferenceName != null) {
                    rtn.append(SEP);
                    rtn.append(PREFERENCE);
                    rtn.append("[");
                    rtn.append(ATTRIBUTE_NAME);
                    rtn.append("=\"");
                    rtn.append(preferenceName);
                    rtn.append("\"]");

                    if (attr != null) {
                        rtn.append(SEP);
                        rtn.append(attr);
                    }
                }
            }
        }
        return rtn.toString();

    }

    private Class loadClass(String className) {
        Class prefSetClass;
        try {

            prefSetClass = Class.forName(className);

        } catch (LinkageError le) {
            le.printStackTrace();
            prefSetClass = null;
            // xxx: todo: set status message here
        } catch (ClassNotFoundException cnfx) {
            //cnfx.printStackTrace();
            prefSetClass = null;
            // xxx: todo: set status message here
        }

        return prefSetClass;

    }

    public PreferenceSet instantiatePreferenceSet(String prefSetClassName) {

        Class prefSetClass;
        PreferenceSet prefSetInstance = null;
        StringBuffer errorMessage = new StringBuffer();
        /** Load class and test for correct superclass */
        prefSetClass = loadClass(prefSetClassName);

        if (prefSetClass == null) {
            prefSetClass = loadClass(DEFAULT_PREFSET_CLASS_NAME);
        }

        if (prefSetClass != null) {

            if (Logging.SHOW_FINE && LOG.isLoggable(Level.FINE)) {
                LOG.fine("class.forName " + prefSetClass.getName());
            }

            Class superClass = prefSetClass.getSuperclass();

            if (Logging.SHOW_FINE && LOG.isLoggable(Level.FINE)) {
                LOG.fine("superClass " + superClass.getName());
            }

            // if superclass is good then instantiate PreferenceSet class
            if (superClass.getName().equals(PreferenceSet.class.getName())) {

                if (Logging.SHOW_FINE && LOG.isLoggable(Level.FINE)) {
                    LOG.fine("superClass is good");
                }


                try {


                    Class customPreferenceSet = Class.forName(prefSetClass.getName());

                    if (PreferenceSet.class.isAssignableFrom(customPreferenceSet)) {

                        prefSetInstance = (PreferenceSet) customPreferenceSet.newInstance();


                    }

                } catch (ClassCastException ccx) {
                    ccx.printStackTrace();
                    errorMessage.append("ClassCast Error in Preference Set Class Instantiation\n\r");
                    errorMessage.append("Using Default Preference Set Class");
                    prefSetInstance = instantiatePreferenceSet(DEFAULT_PREFSET_CLASS_NAME);
                    if (prefSetInstance != null && (prefSetInstance instanceof DefaultPreferenceSet)) {
                        ((DefaultPreferenceSet) prefSetInstance).setErrorMessage(errorMessage.toString());
                    }
                    // xxx: todo: set status message here
                } catch (InstantiationException ix) {
                    ix.printStackTrace();
                    errorMessage.append("Instantiation Error in Preference Set Class Instantiation\n\r");
                    errorMessage.append("Using Default Preference Set Class");
                    prefSetInstance = instantiatePreferenceSet(DEFAULT_PREFSET_CLASS_NAME);
                    if (prefSetInstance != null && prefSetInstance instanceof DefaultPreferenceSet) {
                        ((DefaultPreferenceSet) prefSetInstance).setErrorMessage(errorMessage.toString());
                    }
                    // xxx: todo: set status message here
                } catch (IllegalAccessException iax) {
                    iax.printStackTrace();
                    errorMessage.append("IllegalAccess Error in Preference Set Class Instantiation\n\r");
                    errorMessage.append("Using Default Preference Set Class");
                    prefSetInstance = instantiatePreferenceSet(DEFAULT_PREFSET_CLASS_NAME);
                    if (prefSetInstance != null && prefSetInstance instanceof DefaultPreferenceSet) {
                        ((DefaultPreferenceSet) prefSetInstance).setErrorMessage(errorMessage.toString());
                    }
                    // xxx: todo: set status message here
                } catch (LinkageError le) {
                    le.printStackTrace();
                    errorMessage.append("Linkage Error in Preference Set Class Instantiation\n\r");
                    errorMessage.append("Using Default Preference Set Class");
                    prefSetInstance = instantiatePreferenceSet(DEFAULT_PREFSET_CLASS_NAME);
                    if (prefSetInstance != null && prefSetInstance instanceof DefaultPreferenceSet) {
                        ((DefaultPreferenceSet) prefSetInstance).setErrorMessage(errorMessage.toString());
                    }
                    // xxx: todo: set status message here
                } catch (ClassNotFoundException cnfx) {
                    cnfx.printStackTrace();
                    errorMessage.append("ClassNotFound Error in Preference Set Class Instantiation\n\r");
                    errorMessage.append("Using Default Preference Set Class");
                    prefSetInstance = instantiatePreferenceSet(DEFAULT_PREFSET_CLASS_NAME);