Java tutorial
/* * NOTE: This copyright does *not* cover user programs that use HQ * program services by normal system calls through the application * program interfaces provided as part of the Hyperic Plug-in Development * Kit or the Hyperic Client Development Kit - this is merely considered * normal use of the program, and does *not* fall under the heading of * "derived work". * * Copyright (C) [2004, 2005, 2006], Hyperic, Inc. * This file is part of HQ. * * HQ is free software; you can redistribute it and/or modify * it under the terms version 2 of the GNU General Public License as * published by the Free Software Foundation. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA. */ package org.hyperic.hq.plugin.db2; import java.util.ArrayList; import org.hyperic.db2monitor.DB2Monitor; import org.hyperic.db2monitor.DB2MonitorException; import org.hyperic.db2monitor.SqlmDbase; import org.hyperic.db2monitor.SqlmTable; import org.hyperic.db2monitor.SqlmTablespace; import org.hyperic.hq.appdef.shared.AIPlatformValue; import org.hyperic.hq.appdef.shared.AIServerExtValue; import org.hyperic.hq.appdef.shared.AIServiceValue; import org.hyperic.hq.product.PluginException; import org.hyperic.hq.product.RuntimeDiscoverer; import org.hyperic.hq.product.RuntimeResourceReport; import org.hyperic.util.config.ConfigResponse; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class DB2RuntimeAutoDiscoveryPlugin implements RuntimeDiscoverer { private Log log = LogFactory.getLog("DB2RuntimeAutoDiscoveryPlugin"); private String version; private DB2Monitor db2Monitor = null; public DB2RuntimeAutoDiscoveryPlugin(String version) { this.version = version; } public RuntimeResourceReport discoverResources(int serverId, AIPlatformValue aiplatform, ConfigResponse config) throws PluginException { try { DB2Monitor.load(); } catch (UnsatisfiedLinkError le) { throw new PluginException(le.getMessage()); } catch (DB2MonitorException e) { throw new PluginException(e.getMessage()); } RuntimeResourceReport rrr = new RuntimeResourceReport(serverId); SqlmDbase[] dbase; AIServerExtValue server; ArrayList services, tables, tablespaces; if (this.db2Monitor == null) { String nodename = config.getValue(DB2ProductPlugin.PROP_NODENAME); String user = config.getValue(DB2ProductPlugin.PROP_USER, ""); String password = config.getValue(DB2ProductPlugin.PROP_PASSWORD, ""); try { if (nodename != null) { // Attach to the instance specified this.log.debug("Attaching to instance: " + nodename); this.db2Monitor = new DB2Monitor(nodename, user, password); } else { // Attach to the default local instance this.log.debug("Attaching to default local instance"); this.db2Monitor = new DB2Monitor(); } } catch (DB2MonitorException e) { this.log.error("Error attaching to DB2 instance: " + e.getMessage()); } if (this.db2Monitor == null) { throw new PluginException("DB2 Monitor not loaded"); } } // Check if we should enable the monitor switches // XXX: Maybe we should only do this once.. Sure would be nice // if this could be done in MeasurmentPlugin's init(), but // we have no config response there. String monEnable = config.getValue(DB2ProductPlugin.PROP_MON_ENABLE); if (monEnable != null) { try { this.log.debug("Enabling DB2 monitoring switches"); this.db2Monitor.enableMonitorSwitches(); } catch (DB2MonitorException e) { this.log.error("Unable to enable DB2 monitor switches: " + e.getMessage()); } } try { dbase = this.db2Monitor.getSqlmDbase(); } catch (DB2MonitorException e) { throw new PluginException(e.getMessage()); } server = new AIServerExtValue(); server.setId(new Integer(serverId)); server.setPlaceholder(true); services = new ArrayList(); for (int i = 0; i < dbase.length; i++) { AIServiceValue service = new AIServiceValue(); ConfigResponse productResponse, metricResponse; String dbName = dbase[i].getName(); if (this.version.equals(DB2ProductPlugin.VERSION_7)) { service.setServiceTypeName(DB2ProductPlugin.FULL_DATABASE_NAME_V7); } else if (this.version.equals(DB2ProductPlugin.VERSION_8)) { service.setServiceTypeName(DB2ProductPlugin.FULL_DATABASE_NAME_V8); } else { // Assume version 9.x service.setServiceTypeName(DB2ProductPlugin.FULL_DATABASE_NAME_V9); } service.setName("%serverName%" + " " + dbName + " " + DB2ProductPlugin.DATABASE); productResponse = new ConfigResponse(); metricResponse = new ConfigResponse(); try { metricResponse.setValue(DB2ProductPlugin.PROP_DATABASE, dbName); service.setProductConfig(productResponse.encode()); service.setMeasurementConfig(metricResponse.encode()); } catch (Exception exc) { throw new PluginException("Unable to generate config"); } // For each database discover tables tables = discoverTables(dbName); services.addAll(tables); // For each database discover tablespaces tablespaces = discoverTablespaces(dbName); services.addAll(tablespaces); services.add(service); } server.setAIServiceValues((AIServiceValue[]) services.toArray(new AIServiceValue[0])); aiplatform.addAIServerValue(server); rrr.addAIPlatform(aiplatform); return rrr; } private ArrayList discoverTables(String dbName) throws PluginException { ArrayList services = new ArrayList(); SqlmTable[] tables; try { tables = this.db2Monitor.getSqlmTable(dbName); } catch (UnsatisfiedLinkError e) { throw new PluginException(e.getMessage()); } catch (DB2MonitorException e) { throw new PluginException(e.getMessage()); } for (int i = 0; i < tables.length; i++) { AIServiceValue service = new AIServiceValue(); ConfigResponse productResponse, metricResponse; String tableName = tables[i].getName(); if (this.version.equals(DB2ProductPlugin.VERSION_7)) { service.setServiceTypeName(DB2ProductPlugin.FULL_TABLE_NAME_V7); } else if (this.version.equals(DB2ProductPlugin.VERSION_8)) { service.setServiceTypeName(DB2ProductPlugin.FULL_TABLE_NAME_V8); } else { service.setServiceTypeName(DB2ProductPlugin.FULL_TABLE_NAME_V9); } service.setName("%serverName%" + " " + dbName + " " + tableName + " " + DB2ProductPlugin.TABLE); productResponse = new ConfigResponse(); metricResponse = new ConfigResponse(); try { metricResponse.setValue(DB2ProductPlugin.PROP_DATABASE, dbName); metricResponse.setValue(DB2ProductPlugin.PROP_TABLE, tableName); service.setProductConfig(productResponse.encode()); service.setMeasurementConfig(metricResponse.encode()); } catch (Exception exc) { throw new PluginException("Unable to generate config"); } services.add(service); } return services; } private ArrayList discoverTablespaces(String dbName) throws PluginException { ArrayList services = new ArrayList(); SqlmTablespace[] ts; try { ts = this.db2Monitor.getSqlmTablespace(dbName); } catch (UnsatisfiedLinkError e) { throw new PluginException(e.getMessage()); } catch (DB2MonitorException e) { throw new PluginException(e.getMessage()); } for (int i = 0; i < ts.length; i++) { AIServiceValue service = new AIServiceValue(); ConfigResponse productResponse, metricResponse; String tsName = ts[i].getName(); if (this.version.equals(DB2ProductPlugin.VERSION_7)) { service.setServiceTypeName(DB2ProductPlugin.FULL_TABLESPACE_NAME_V7); } else if (this.version.equals(DB2ProductPlugin.VERSION_8)) { service.setServiceTypeName(DB2ProductPlugin.FULL_TABLESPACE_NAME_V8); } else { service.setServiceTypeName(DB2ProductPlugin.FULL_TABLESPACE_NAME_V9); } service.setName("%serverName%" + " " + dbName + " " + tsName + " " + DB2ProductPlugin.TABLESPACE); productResponse = new ConfigResponse(); metricResponse = new ConfigResponse(); try { metricResponse.setValue(DB2ProductPlugin.PROP_DATABASE, dbName); metricResponse.setValue(DB2ProductPlugin.PROP_TABLESPACE, tsName); service.setProductConfig(productResponse.encode()); service.setMeasurementConfig(metricResponse.encode()); } catch (Exception exc) { throw new PluginException("Unable to generate config"); } services.add(service); } return services; } }