001/* 002 * Copyright 2012 Anyware Services 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 */ 016package org.ametys.runtime.plugins.admin.jvmstatus.monitoring; 017 018import java.io.File; 019import java.io.IOException; 020 021import org.apache.commons.io.FileUtils; 022import org.rrd4j.core.RrdDb; 023import org.rrd4j.core.RrdDef; 024 025import org.ametys.runtime.plugin.ExtensionPoint; 026import org.ametys.runtime.plugin.component.AbstractThreadSafeComponentExtensionPoint; 027import org.ametys.runtime.servlet.RuntimeConfig; 028 029/** 030 * {@link ExtensionPoint} for collecting sample of data in order to be 031 * monitored. 032 */ 033public class MonitoringExtensionPoint extends AbstractThreadSafeComponentExtensionPoint<SampleManager> implements MonitoringConstants 034{ 035 /** Avalon role.*/ 036 public static final String ROLE = MonitoringExtensionPoint.class.getName(); 037 038 @Override 039 public void initializeExtensions() throws Exception 040 { 041 super.initializeExtensions(); 042 043 File rrdStorageDir = FileUtils.getFile(RuntimeConfig.getInstance().getAmetysHome(), RRD_STORAGE_DIRECTORY); 044 045 if (!rrdStorageDir.exists()) 046 { 047 if (!rrdStorageDir.mkdirs()) 048 { 049 throw new Exception("Unable to create monitoring directory: " + rrdStorageDir); 050 } 051 } 052 053 for (String extensionId : getExtensionsIds()) 054 { 055 SampleManager sampleManager = getExtension(extensionId); 056 057 String sampleName = sampleManager.getId(); 058 File rrdFile = new File(rrdStorageDir, sampleName + RRD_EXT); 059 060 if (getLogger().isInfoEnabled()) 061 { 062 getLogger().info("Creating RRD file: " + rrdFile); 063 } 064 065 if (!rrdFile.exists()) 066 { 067 RrdDef rrdDef = new RrdDef(rrdFile.getPath(), FEEDING_PERIOD); 068 069 sampleManager.configureRRDDef(rrdDef); 070 071 try (RrdDb rrdDb = RrdDb.of(rrdDef)) 072 { 073 // empty 074 } 075 catch (IOException e) 076 { 077 throw new Exception("Unable to create RRD file: " + rrdFile); 078 } 079 } 080 } 081 } 082}