Java tutorial
/******************************************************************************* * This file is part of OpenNMS(R). * * Copyright (C) 2009-2014 The OpenNMS Group, Inc. * OpenNMS(R) is Copyright (C) 1999-2014 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 Affero 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero 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.netmgt.provision.detector.msexchange.client; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.InetAddress; import java.net.InetSocketAddress; import java.net.Socket; import org.apache.commons.io.IOUtils; import org.opennms.core.utils.InetAddressUtils; import org.opennms.netmgt.provision.detector.msexchange.response.MSExchangeResponse; import org.opennms.netmgt.provision.detector.simple.request.LineOrientedRequest; import org.opennms.netmgt.provision.support.Client; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * <p>MSExchangeDetectorClient class.</p> * * @author ranger * @version $Id: $ */ public class MSExchangeDetectorClient implements Client<LineOrientedRequest, MSExchangeResponse> { private static final Logger LOG = LoggerFactory.getLogger(MSExchangeDetectorClient.class); private Integer m_imapPort; private Integer m_pop3Port; private String m_pop3Response; private String m_imapResponse; /** * <p>close</p> */ @Override public void close() { } /** {@inheritDoc} */ @Override public void connect(final InetAddress address, final int port, final int timeout) throws IOException, Exception { setImapResponse(connectAndGetResponse(address, getImapPort(), timeout)); setPop3Response(connectAndGetResponse(address, getPop3Port(), timeout)); } private String connectAndGetResponse(final InetAddress address, final Integer port, final int timeout) { Socket socket = null; InputStreamReader isr = null; BufferedReader lineRdr = null; if (port != null) { try { socket = new Socket(); final InetSocketAddress inetSocketAddress = new InetSocketAddress(address, port.intValue()); socket.connect(inetSocketAddress, timeout); socket.setSoTimeout(timeout); // Allocate a line reader isr = new InputStreamReader(socket.getInputStream()); lineRdr = new BufferedReader(isr); // Read the banner line and see if it contains the // substring "Microsoft Exchange" // final String banner = lineRdr.readLine(); socket.close(); return banner; } catch (final Exception e) { LOG.debug("An error occurred while connecting to {}:{}", InetAddressUtils.str(address), port, e); IOUtils.closeQuietly(lineRdr); IOUtils.closeQuietly(isr); if (socket != null) { try { socket.close(); } catch (final IOException e1) { LOG.debug("Additionally, an exception occurred while trying to close the socket.", e); } } } } return null; } /** * <p>receiveBanner</p> * * @return a {@link org.opennms.netmgt.provision.detector.msexchange.response.MSExchangeResponse} object. * @throws java.io.IOException if any. * @throws java.lang.Exception if any. */ @Override public MSExchangeResponse receiveBanner() throws IOException, Exception { MSExchangeResponse response = new MSExchangeResponse(); response.setPop3Response(getPop3Response()); response.setImapResponse(getImapResponse()); return response; } /** * <p>sendRequest</p> * * @param request a {@link org.opennms.netmgt.provision.detector.simple.request.LineOrientedRequest} object. * @return a {@link org.opennms.netmgt.provision.detector.msexchange.response.MSExchangeResponse} object. * @throws java.io.IOException if any. * @throws java.lang.Exception if any. */ @Override public MSExchangeResponse sendRequest(LineOrientedRequest request) throws IOException, Exception { return null; } /** * <p>setImapPort</p> * * @param imapPort a int. */ public void setImapPort(int imapPort) { m_imapPort = imapPort; } /** * <p>getImapPort</p> * * @return a {@link java.lang.Integer} object. */ public Integer getImapPort() { return m_imapPort; } /** * <p>setFtpPort</p> * * @param ftpPort a int. */ public void setFtpPort(int ftpPort) { m_pop3Port = ftpPort; } /** * <p>getPop3Port</p> * * @return a {@link java.lang.Integer} object. */ public Integer getPop3Port() { return m_pop3Port; } /** * <p>setPop3Port</p> * * @param pop3Port a int. */ public void setPop3Port(int pop3Port) { m_pop3Port = pop3Port; } /** * <p>setImapResponse</p> * * @param imapResponse a {@link java.lang.String} object. */ public void setImapResponse(String imapResponse) { m_imapResponse = imapResponse; } /** * <p>getImapResponse</p> * * @return a {@link java.lang.String} object. */ public String getImapResponse() { return m_imapResponse; } /** * <p>setPop3Response</p> * * @param pop3Response a {@link java.lang.String} object. */ public void setPop3Response(String pop3Response) { m_pop3Response = pop3Response; } /** * <p>getPop3Response</p> * * @return a {@link java.lang.String} object. */ public String getPop3Response() { return m_pop3Response; } }