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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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package org.apache.cayenne.modeler;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.prefs.BackingStoreException;
import java.util.prefs.PreferenceChangeEvent;
import java.util.prefs.PreferenceChangeListener;
import java.util.prefs.Preferences;
import org.apache.cayenne.pref.CayennePreference;
import org.apache.cayenne.pref.Preference;
import org.apache.cayenne.pref.UpgradeCayennePreference;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* ModelerPreferences class supports persistent user preferences. Preferences are saved in
* the user home directory in "<code>$HOME/.cayenne/modeler.preferences</code>" file.
* <p>
* <i>This class is obsolete; its users will be migrated to use preference service. </i>
* </p>
*/
public class ModelerPreferences implements PreferenceChangeListener {
private static Preferences cayennePrefs;
private static final Log logObj = LogFactory.getLog(ModelerPreferences.class);
/** Name of the log file. */
public static final String LOGFILE_NAME = "modeler.log";
/** List of the last 12 opened project files. */
public static final int LAST_PROJ_FILES_SIZE = 12;
/** Log file */
public static final String EDITOR_LOGFILE_ENABLED = "logfileEnabled";
public static final String EDITOR_LOGFILE = "logfile";
/**
* Number of items in combobox visible without scrolling
*/
public static final int COMBOBOX_MAX_VISIBLE_SIZE = 12;
/**
* Returns Cayenne preferences singleton.
*/
public static Preferences getPreferences() {
if (cayennePrefs == null) {
Preference decoratedPref = new UpgradeCayennePreference(
new CayennePreference());
cayennePrefs = decoratedPref.getCayennePreference();
cayennePrefs.addPreferenceChangeListener(new ModelerPreferences());
}
return cayennePrefs;
}
public static Preferences getEditorPreferences() {
return getPreferences().node(CayennePreference.EDITOR);
}
public static Preferences getLastProjFilesPref() {
return getEditorPreferences().node(CayennePreference.LAST_PROJ_FILES);
}
public static List<String> getLastProjFiles() {
Preferences filesPrefs = getLastProjFilesPref();
ArrayList<String> arrayLastProjFiles = new ArrayList<String>();
String[] keys = null;
try {
keys = filesPrefs.keys();
}
catch (BackingStoreException e) {
logObj.warn("Error reading preferences file.", e);
}
if (keys != null) {
int len = keys.length;
ArrayList<Integer> keysInteger = new ArrayList<Integer>();
for (int i = 0; i < len; i++) {
keysInteger.add(new Integer(i));
}
Collections.sort(keysInteger);
for (int i = 0; i < len; i++) {
arrayLastProjFiles.add(filesPrefs.get(keysInteger.get(i).toString(), ""));
}
}
return arrayLastProjFiles;
}
public void preferenceChange(PreferenceChangeEvent evt) {
evt.getNode().put(evt.getKey(), evt.getNewValue());
}
}