001/*
002 * (C) Copyright 2006-2009 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021package org.nuxeo.ecm.admin.monitoring;
022
023import java.io.Serializable;
024import java.util.ArrayList;
025import java.util.Arrays;
026import java.util.List;
027
028import org.jboss.seam.ScopeType;
029import org.jboss.seam.annotations.Factory;
030import org.jboss.seam.annotations.Name;
031import org.jboss.seam.annotations.Scope;
032import org.jboss.seam.contexts.Contexts;
033import org.nuxeo.ecm.core.management.events.EventMonitoring;
034
035/**
036 * Simple Seam Bean that wraps {@link EventMonitoring} to expose it to JSF/Seam layer
037 *
038 * @author tiry
039 */
040@Name("eventMonitoringAction")
041@Scope(ScopeType.EVENT)
042public class EventMonitoringActionBean implements Serializable {
043
044    private static final long serialVersionUID = 1L;
045
046    protected EventMonitoring monitor;
047
048    protected EventMonitoring getEventMonitoring() {
049        if (monitor == null) {
050            monitor = new EventMonitoring();
051        }
052        return monitor;
053    }
054
055    public int getActiveThreads() {
056        return getEventMonitoring().getActiveThreadsCount();
057    }
058
059    public int getQueuedEvents() {
060        return getEventMonitoring().getEventsInQueueCount();
061    }
062
063    @Factory(value = "eventSyncStats", scope = ScopeType.EVENT)
064    public List<List<String>> getSyncStats() {
065        String stats = getEventMonitoring().getSyncHandlersExecTime();
066        return formatStats(stats);
067    }
068
069    @Factory(value = "eventAsyncStats", scope = ScopeType.EVENT)
070    public List<List<String>> getAsyncStats() {
071        String stats = getEventMonitoring().getAsyncHandlersExecTime();
072        return formatStats(stats);
073    }
074
075    protected List<List<String>> formatStats(String stats) {
076
077        List<List<String>> result = new ArrayList<List<String>>();
078        if (stats == null || stats.length() == 0) {
079            return result;
080        }
081
082        String[] lines = stats.split("\n");
083        for (String line : lines) {
084            line = line.trim();
085            if (line.length() == 0) {
086                continue;
087            }
088            String[] parts = line.split(" - ");
089            List<String> lin = Arrays.asList(parts);
090            result.add(lin);
091        }
092        return result;
093    }
094
095    public void refresh() {
096        cleanSeamEventCache();
097    }
098
099    public String getEventStatistics() {
100        StringBuilder sb = new StringBuilder();
101
102        sb.append("Active Threads : ");
103        sb.append(getEventMonitoring().getActiveThreadsCount());
104        sb.append("\nQueued events : ");
105        sb.append(getEventMonitoring().getEventsInQueueCount());
106
107        sb.append("\nSync processing time : ");
108        if (getEventMonitoring().isSyncHandlersTrackingEnabled()) {
109            sb.append(getEventMonitoring().getSyncHandlersExecTime());
110        } else {
111            sb.append("[tracking not enabled]");
112        }
113        sb.append("\nAsync processing time : ");
114        if (getEventMonitoring().isAsyncHandlersTrackingEnabled()) {
115            sb.append(getEventMonitoring().getAsyncHandlersExecTime());
116        } else {
117            sb.append("[tracking not enabled]");
118        }
119        return sb.toString();
120    }
121
122    protected void cleanSeamEventCache() {
123        Contexts.getEventContext().remove("eventSyncTrackingEnabled");
124        Contexts.getEventContext().remove("eventAsyncTrackingEnabled");
125        Contexts.getEventContext().remove("eventSyncStats");
126        Contexts.getEventContext().remove("eventAsyncStats");
127    }
128
129    public void enableSyncTracking() {
130        getEventMonitoring().setSyncHandlersTrackingEnabled(true);
131        cleanSeamEventCache();
132    }
133
134    public void enableAsyncTracking() {
135        getEventMonitoring().setAsyncHandlersTrackingEnabled(true);
136        cleanSeamEventCache();
137    }
138
139    public void disableSyncTracking() {
140        getEventMonitoring().setSyncHandlersTrackingEnabled(false);
141        cleanSeamEventCache();
142    }
143
144    public void disableAsyncTracking() {
145        getEventMonitoring().setAsyncHandlersTrackingEnabled(false);
146        cleanSeamEventCache();
147    }
148
149    @Factory(value = "eventSyncTrackingEnabled", scope = ScopeType.EVENT)
150    public boolean isSyncTrackingEnabled() {
151        return getEventMonitoring().isSyncHandlersTrackingEnabled();
152    }
153
154    @Factory(value = "eventAsyncTrackingEnabled", scope = ScopeType.EVENT)
155    public boolean isAsyncTrackingEnabled() {
156        return getEventMonitoring().isAsyncHandlersTrackingEnabled();
157    }
158
159}