/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program 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 version 2 of the License.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.enterprise.server.measurement;
import java.util.List;
import javax.ejb.Stateless;
import org.rhq.core.domain.auth.Subject;
import org.rhq.core.domain.common.EntityContext;
import org.rhq.enterprise.server.measurement.MeasurementPreferences.MetricViewData;
import org.rhq.enterprise.server.measurement.MeasurementPreferences.MetricViewsPreferences;
/**
* @author Joseph Marques
*/
@Stateless
public class MeasurementViewManagerBean implements MeasurementViewManagerLocal {
public List<String> getViewNames(Subject user, EntityContext context) {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
MetricViewsPreferences prefs = measurementPreferences.getMetricViews(key);
return prefs.views;
}
public void createView(Subject user, EntityContext context, String viewName) throws MeasurementViewException {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
MetricViewsPreferences prefs = measurementPreferences.getMetricViews(key);
if (prefs.views.contains(viewName)) {
throw new MeasurementViewException("View name already in use: '" + viewName + "'");
}
prefs.views.add(viewName);
measurementPreferences.setMetricViews(prefs, key);
}
public void deleteView(Subject user, EntityContext context, String viewName) {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
MetricViewsPreferences prefs = measurementPreferences.getMetricViews(key);
prefs.views.remove(viewName); // graceful no-op if viewName did not exist in context
measurementPreferences.setMetricViews(prefs, key);
measurementPreferences.deleteMetricViewData(key, viewName);
}
public String getSelectedView(Subject user, EntityContext context) {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
String selectedView = measurementPreferences.getSelectedView(key);
return selectedView;
}
public void setSelectedView(Subject user, EntityContext context, String viewName) {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
measurementPreferences.setSelectedView(key, viewName);
}
public List<String> getCharts(Subject user, EntityContext context, String viewName) throws MeasurementViewException {
try {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
MetricViewData viewData = measurementPreferences.getMetricViewData(key, viewName);
return viewData.charts;
} catch (IllegalArgumentException iae) {
// view with 'viewName' was not found, this is OK as the caller will handle creating it by default
throw new MeasurementViewException("Could not find view " + viewName + " in context " + context);
}
}
public void saveCharts(Subject user, EntityContext context, String viewName, List<String> charts) {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
MetricViewData viewData = new MetricViewData();
// don't even bother reading the current value out of the preferences, it's being overridden
viewData.charts = charts;
measurementPreferences.setMetricViewData(key, viewName, viewData);
}
public void moveChartUp(Subject user, EntityContext context, String viewName, String viewKey) {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
MetricViewData viewData = measurementPreferences.getMetricViewData(key, viewName);
List<String> charts = viewData.charts;
int index = charts.indexOf(viewKey);
if (index < 1) {
return; // either non-existent or viewKey is already at beginning of the list
}
charts.set(index, charts.get(index - 1)); // there is at least one guy in front of us, move him back
charts.set(index - 1, viewKey);
measurementPreferences.setMetricViewData(key, viewName, viewData);
}
public void moveChartDown(Subject user, EntityContext context, String viewName, String viewKey) {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
MetricViewData viewData = measurementPreferences.getMetricViewData(key, viewName);
List<String> charts = viewData.charts;
int index = charts.indexOf(viewKey);
if (index == -1 && index >= charts.size() - 1) {
return; // either non-existent or viewKey is already at the end of the list
}
charts.set(index, charts.get(index + 1)); // there is at least one guy in front of us, move him back
charts.set(index + 1, viewKey);
measurementPreferences.setMetricViewData(key, viewName, viewData);
}
public void addChart(Subject user, EntityContext context, String viewName, String viewKey) {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
MetricViewData viewData = measurementPreferences.getMetricViewData(key, viewName);
// only add chart if it's not already in the list
if (!viewData.charts.contains(viewKey)) {
viewData.charts.add(viewKey); // new charts always go at the end
measurementPreferences.setMetricViewData(key, viewName, viewData);
}
}
public void removeChart(Subject user, EntityContext context, String viewName, String viewKey) {
String key = context.getLegacyKey();
MeasurementPreferences measurementPreferences = new MeasurementPreferences(user);
MetricViewData viewData = measurementPreferences.getMetricViewData(key, viewName);
viewData.charts.remove(viewKey); // graceful no-op if viewKey did not exist in context
measurementPreferences.setMetricViewData(key, viewName, viewData);
}
}