+++ /dev/null
-/*
- * Copyright (C) 2007-2012 Mathieu Baudier
- *
- * Licensed 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 under the License.
- */
-package org.argeo.eclipse.ui.jcr;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.util.Properties;
-
-import javax.jcr.Node;
-import javax.jcr.Property;
-import javax.jcr.PropertyIterator;
-import javax.jcr.RepositoryException;
-import javax.jcr.Session;
-import javax.jcr.version.VersionManager;
-
-import org.apache.commons.io.IOUtils;
-import org.argeo.ArgeoException;
-import org.argeo.jcr.ArgeoNames;
-import org.argeo.jcr.ArgeoTypes;
-import org.argeo.jcr.JcrUtils;
-import org.eclipse.jface.preference.PreferenceStore;
-import org.eclipse.ui.preferences.ScopedPreferenceStore;
-import org.osgi.framework.BundleContext;
-
-/**
- * Persist preferences as key/value pairs under ~/argeo:preferences.<br>
- * TODO: better integrate JCR and Eclipse:<br>
- * - typing<br>
- * - use eclipse preferences<br>
- * - better integrate with {@link ScopedPreferenceStore} provided by RAP
- */
-public class JcrPreferenceStore extends PreferenceStore implements ArgeoNames {
- private Session session;
- private BundleContext bundleContext;
-
- /** Retrieves the preference node */
- protected Node getPreferenceNode() {
- try {
- if (session.hasPendingChanges())
- session.save();
- Node userHome = JcrUtils.getUserHome(session);
- if (userHome == null)
- throw new ArgeoException("No user home for "
- + session.getUserID());
- Node preferences;
- if (!userHome.hasNode(ARGEO_PREFERENCES)) {
- preferences = userHome.addNode(ARGEO_PREFERENCES);
- preferences.addMixin(ArgeoTypes.ARGEO_PREFERENCE_NODE);
- session.save();
- } else
- preferences = userHome.getNode(ARGEO_PREFERENCES);
-
- String pluginPreferencesName = bundleContext.getBundle()
- .getSymbolicName();
- Node pluginPreferences;
- if (!preferences.hasNode(pluginPreferencesName)) {
- VersionManager vm = session.getWorkspace().getVersionManager();
- vm.checkout(preferences.getPath());
- pluginPreferences = preferences.addNode(pluginPreferencesName);
- pluginPreferences.addMixin(ArgeoTypes.ARGEO_PREFERENCE_NODE);
- session.save();
- vm.checkin(preferences.getPath());
- } else
- pluginPreferences = preferences.getNode(pluginPreferencesName);
- return pluginPreferences;
- } catch (RepositoryException e) {
- e.printStackTrace();
- JcrUtils.discardQuietly(session);
- throw new ArgeoException("Cannot retrieve preferences", e);
- }
-
- }
-
- @Override
- public void load() throws IOException {
- ByteArrayOutputStream out = null;
- ByteArrayInputStream in = null;
- try {
- Properties props = new Properties();
- PropertyIterator it = getPreferenceNode().getProperties();
- while (it.hasNext()) {
- Property p = it.nextProperty();
- if (!p.isMultiple() && !p.getDefinition().isProtected()) {
- props.setProperty(p.getName(), p.getValue().getString());
- }
- }
- out = new ByteArrayOutputStream();
- props.store(out, "");
- in = new ByteArrayInputStream(out.toByteArray());
- load(in);
- } catch (Exception e) {
- e.printStackTrace();
- throw new ArgeoException("Cannot load preferences", e);
- } finally {
- IOUtils.closeQuietly(in);
- IOUtils.closeQuietly(out);
- }
- }
-
- @Override
- public void save() throws IOException {
- ByteArrayOutputStream out = null;
- ByteArrayInputStream in = null;
- Node pluginPreferences = null;
- try {
- out = new ByteArrayOutputStream();
- save(out, "");
- in = new ByteArrayInputStream(out.toByteArray());
- Properties props = new Properties();
- props.load(in);
- pluginPreferences = getPreferenceNode();
- VersionManager vm = pluginPreferences.getSession().getWorkspace()
- .getVersionManager();
- vm.checkout(pluginPreferences.getPath());
- for (Object key : props.keySet()) {
- String name = key.toString();
- String value = props.getProperty(name);
- pluginPreferences.setProperty(name, value);
- }
- JcrUtils.updateLastModified(pluginPreferences);
- pluginPreferences.getSession().save();
- vm.checkin(pluginPreferences.getPath());
- } catch (Exception e) {
- JcrUtils.discardUnderlyingSessionQuietly(pluginPreferences);
- throw new ArgeoException("Cannot save preferences", e);
- } finally {
- IOUtils.closeQuietly(in);
- IOUtils.closeQuietly(out);
- }
- }
-
- public void init() {
- try {
- load();
- } catch (IOException e) {
- throw new ArgeoException("Cannot initialize preference store", e);
- }
- }
-
- public void setSession(Session session) {
- this.session = session;
- }
-
- public void setBundleContext(BundleContext bundleContext) {
- this.bundleContext = bundleContext;
- }
-
-}
projects / lgpl / argeo-commons.git / blobdiff