Java tutorial
/******************************************************************************* * This file is part of OpenNMS(R). * * Copyright (C) 2007-2012 The OpenNMS Group, Inc. * OpenNMS(R) is Copyright (C) 1999-2012 The OpenNMS Group, Inc. * * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc. * * OpenNMS(R) 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, either version 3 of the License, * or (at your option) any later version. * * OpenNMS(R) 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 OpenNMS(R). If not, see: * http://www.gnu.org/licenses/ * * For more information contact: * OpenNMS(R) Licensing <license@opennms.org> * http://www.opennms.org/ * http://www.opennms.com/ *******************************************************************************/ package org.opennms.ng.services.collectd; import java.io.File; import java.net.InetAddress; import java.util.LinkedHashSet; import java.util.Properties; import java.util.Set; import org.opennms.core.utils.InetAddressUtils; import org.opennms.netmgt.collectd.CollectionAgentService; import org.opennms.netmgt.collectd.SnmpIfData; import org.opennms.netmgt.config.SnmpPeerFactory; import org.opennms.netmgt.dao.support.DefaultResourceDao; import org.opennms.netmgt.model.OnmsIpInterface; import org.opennms.netmgt.model.OnmsNode; import org.opennms.netmgt.model.OnmsSnmpInterface; import org.opennms.netmgt.model.PrimaryType; import org.opennms.netmgt.snmp.SnmpAgentConfig; import org.opennms.ng.persistence.dao.OnmsIpInterfaceDao; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.transaction.PlatformTransactionManager; import org.springframework.transaction.interceptor.TransactionProxyFactoryBean; /** * Represents a remote SNMP agent on a specific IPv4 interface. * * @author ranger * @version $Id: $ */ public class DefaultCollectionAgentService implements CollectionAgentService { private static final Logger LOG = LoggerFactory.getLogger(DefaultCollectionAgentService.class); /** * <p>create</p> * * @param ifaceId a {@link Integer} object. * @param ifaceDao a {@link org.opennms.netmgt.dao.api.IpInterfaceDao} object. * @param transMgr a {@link org.springframework.transaction.PlatformTransactionManager} object. * @return a {@link CollectionAgentService} object. */ public static CollectionAgentService create(Integer ifaceId, final OnmsIpInterfaceDao ifaceDao, final PlatformTransactionManager transMgr) { CollectionAgentService agent = new DefaultCollectionAgentService(ifaceId, ifaceDao); TransactionProxyFactoryBean bean = new TransactionProxyFactoryBean(); bean.setTransactionManager(transMgr); bean.setTarget(agent); Properties props = new Properties(); props.put("*", "PROPAGATION_REQUIRED,readOnly"); bean.setTransactionAttributes(props); bean.afterPropertiesSet(); return (CollectionAgentService) bean.getObject(); } // the interface of the Agent private Integer m_ifaceId; private OnmsIpInterfaceDao m_ifaceDao; //Unused; delete //private int m_maxVarsPerPdu; //private int m_ifCount; private DefaultCollectionAgentService(Integer ifaceId, OnmsIpInterfaceDao ifaceDao) { // we pass in null since we override calls to getAddress and getInetAddress m_ifaceId = ifaceId; m_ifaceDao = ifaceDao; } OnmsIpInterface getIpInterface() { return m_ifaceDao.read(m_ifaceId); } private OnmsNode getNode() { return getIpInterface().getNode(); } /* (non-Javadoc) * @see CollectionAgent#getHostAddress() */ /** * <p>getHostAddress</p> * * @return a {@link String} object. */ @Override public String getHostAddress() { return InetAddressUtils.str(getInetAddress()); } /* (non-Javadoc) * @see CollectionAgent#isStoreByForeignSource() */ /** * <p>isStoreByForeignSource</p> * * @return a {@link Boolean} object. */ @Override public Boolean isStoreByForeignSource() { return Boolean.getBoolean("org.opennms.rrd.storeByForeignSource"); } /* (non-Javadoc) * @see CollectionAgent#getNodeId() */ /** * <p>getNodeId</p> * * @return a int. */ @Override public int getNodeId() { return getIpInterface().getNode().getId() == null ? -1 : getIpInterface().getNode().getId().intValue(); } /* (non-Javadoc) * @see CollectionAgent#getForeignSource() */ /** * <p>getForeignSource</p> * * @return a {@link String} object. */ @Override public String getForeignSource() { return getIpInterface().getNode().getForeignSource() == null ? null : getIpInterface().getNode().getForeignSource(); } /* (non-Javadoc) * @see CollectionAgent#getForeignId() */ /** * <p>getForeignId</p> * * @return a {@link String} object. */ @Override public String getForeignId() { return getIpInterface().getNode().getForeignId() == null ? null : getIpInterface().getNode().getForeignId(); } /* (non-Javadoc) * @see CollectionAgent#getStorageDir() */ /** * <p>getStorageDir</p> * * @return a {@link java.io.File} object. */ @Override public File getStorageDir() { File dir = new File(String.valueOf(getIpInterface().getNode().getId())); if (isStoreByForeignSource() && !(getIpInterface().getNode().getForeignSource() == null) && !(getIpInterface().getNode().getForeignId() == null)) { File fsDir = new File(DefaultResourceDao.FOREIGN_SOURCE_DIRECTORY, getIpInterface().getNode().getForeignSource()); dir = new File(fsDir, getIpInterface().getNode().getForeignId()); } return dir; } /** * <p>getIfIndex</p> * * @return a int. */ @Override public int getIfIndex() { return (getIpInterface().getIfIndex() == null ? -1 : getIpInterface().getIfIndex().intValue()); } /* (non-Javadoc) * @see CollectionAgent#getSysObjectId() */ /** * <p>getSysObjectId</p> * * @return a {@link String} object. */ @Override public String getSysObjectId() { return getIpInterface().getNode().getSysObjectId(); } /** * <p>getIsSnmpPrimary</p> * * @return a {@link org.opennms.netmgt.model.PrimaryType} object. */ @Override public PrimaryType getIsSnmpPrimary() { return getIpInterface().getIsSnmpPrimary(); } /* (non-Javadoc) * @see CollectionAgent#toString() */ /** * <p>toString</p> * * @return a {@link String} object. */ @Override public String toString() { return "Agent[nodeid = " + getNodeId() + " ipaddr= " + getHostAddress() + ']'; } /* (non-Javadoc) * @see CollectionAgent#getAgentConfig() */ /** * <p>getAgentConfig</p> * * @return a {@link org.opennms.netmgt.snmp.SnmpAgentConfig} object. */ @Override public SnmpAgentConfig getAgentConfig() { return SnmpPeerFactory.getInstance().getAgentConfig(getInetAddress()); } /* (non-Javadoc) * @see CollectionAgent#getSnmpInterfaceInfo(IfResourceType) */ /** * <p>getSnmpInterfaceData</p> * * @return a {@link java.util.Set} object. */ @Override public Set<SnmpIfData> getSnmpInterfaceData() { Set<OnmsSnmpInterface> snmpIfs = getSnmpInterfaces(); Set<SnmpIfData> ifData = new LinkedHashSet<SnmpIfData>(snmpIfs.size()); for (OnmsSnmpInterface snmpIface : snmpIfs) { logInitializeSnmpIf(snmpIface); SnmpIfData snmpIfData = new SnmpIfData(snmpIface); ifData.add(snmpIfData); //ifInfos.add(new IfInfo(type, agent, snmpIfData)); } return ifData; } private Set<OnmsSnmpInterface> getSnmpInterfaces() { OnmsNode node = getNode(); Set<OnmsSnmpInterface> snmpIfs = node.getSnmpInterfaces(); if (snmpIfs.size() == 0) { LOG.debug("no known SNMP interfaces for node {}", node); } return snmpIfs; } private void logInitializeSnmpIf(OnmsSnmpInterface snmpIface) { LOG.debug("initialize: snmpifindex = {}, snmpifname = {}, snmpifdescr = {}, snmpphysaddr = -{}-", snmpIface.getIfIndex().intValue(), snmpIface.getIfName(), snmpIface.getIfDescr(), snmpIface.getPhysAddr()); LOG.debug("initialize: ifLabel = '{}'", snmpIface.computeLabelForRRD()); } /** * <p>getInetAddress</p> * * @return a {@link java.net.InetAddress} object. */ @Override public InetAddress getInetAddress() { return getIpInterface().getIpAddress(); } }