[Jrobin-commits] src/org/jrobin/mrtg/server Port.java,1.3,1.4 Server.java,1.11,1.12

[Sasa M. <sa...@us...>]

Update of /cvsroot/jrobin/src/org/jrobin/mrtg/server
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv8333/org/jrobin/mrtg/server

Modified Files:
	Port.java Server.java 
Log Message:


Index: Port.java
===================================================================
RCS file: /cvsroot/jrobin/src/org/jrobin/mrtg/server/Port.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** Port.java	9 Apr 2004 09:29:17 -0000	1.3
--- Port.java	10 Apr 2004 10:31:30 -0000	1.4
***************
*** 1,250 ****
! /* ============================================================
!  * JRobin : Pure java implementation of RRDTool's functionality
!  * ============================================================
!  *
!  * Project Info:  http://www.jrobin.org
!  * Project Lead:  Sasa Markovic (sa...@jr...);
!  *
!  * (C) Copyright 2003, by Sasa Markovic.
!  *
!  * Developers:    Sasa Markovic (sa...@jr...)
!  *                Arne Vandamme (cob...@jr...)
!  *
!  * This library is free software; you can redistribute it and/or modify it under the terms
!  * of the GNU Lesser General Public License as published by the Free Software Foundation;
!  * either version 2.1 of the License, or (at your option) any later version.
!  *
!  * This library 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 Lesser General Public License for more details.
!  *
!  * You should have received a copy of the GNU Lesser General Public License along with this
!  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
!  * Boston, MA 02111-1307, USA.
!  */
! package org.jrobin.mrtg.server;
! 
! import org.jrobin.core.Util;
! import org.jrobin.mrtg.Debug;
! import org.jrobin.mrtg.MrtgException;
! import org.w3c.dom.Document;
! import org.w3c.dom.Element;
! import org.w3c.dom.Node;
! import org.w3c.dom.NodeList;
! 
! import java.util.Date;
! import java.util.Hashtable;
! 
! class Port {
! 	static final int DEFAULT_SAMPLING_INTERVAL = 300;
! 
! 	private int ifIndex = -1;
! 	private String ifDescr = "";
! 	private String ifAlias = "";
! 	private String descr = "";
! 	private int samplingInterval = DEFAULT_SAMPLING_INTERVAL;
! 	private boolean active = true;
! 	private int sampleCount;
! 
! 	private long lastSampleTime;
! 	private RawSample lastSample;
! 	private boolean sampling;
! 
! 	Port() { }
! 
! 	Port(Node linkNode) {
! 		NodeList nodes = linkNode.getChildNodes();
! 		for(int i = 0; i < nodes.getLength(); i++) {
! 			Node node = nodes.item(i);
! 			String name = node.getNodeName();
! 			Node firstChild = node.getFirstChild();
! 			String value = (firstChild != null)? firstChild.getNodeValue().trim(): null;
!             if(name.equals("ifIndex")) {
! 				setIfIndex(Integer.parseInt(value));
! 			}
! 			else if(name.equals("ifDescr")) {
! 				setIfDescr(value);
! 			}
! 			else if(name.equals("ifAlias")) {
! 				setIfAlias(value);
! 			}
! 			else if(name.equals("description")) {
! 				setDescr(value);
! 			}
! 			else if(name.equals("samplingInterval")) {
! 				setSamplingInterval(Integer.parseInt(value));
! 			}
! 			else if(name.equals("active")) {
! 				setActive(new Boolean(value).booleanValue());
! 			}
! 		}
! 	}
! 
! 	int getIfIndex() {
! 		return ifIndex;
! 	}
! 
! 	void setIfIndex(int ifIndex) {
! 		this.ifIndex = ifIndex;
! 	}
! 
! 	String getIfDescr() {
! 		return ifDescr;
! 	}
! 
! 	String getIfDescrCore() {
! 		int index = ifDescr.indexOf("#");
! 		if(index != -1) {
! 			return ifDescr.substring(0, index);
! 		}
! 		else {
! 			return ifDescr;
! 		}
! 	}
! 
! 	void setIfDescr(String ifDescr) {
! 		if(ifDescr != null) {
! 			this.ifDescr = ifDescr;
! 		}
! 	}
! 
! 	String getIfAlias() {
! 		return ifAlias;
! 	}
! 
! 	void setIfAlias(String ifAlias) {
! 		if(ifAlias != null) {
! 			this.ifAlias = ifAlias;
! 		}
! 	}
! 
! 	int getSamplingInterval() {
! 		return samplingInterval;
! 	}
! 
! 	void setSamplingInterval(int samplingInterval) {
! 		this.samplingInterval = samplingInterval;
! 	}
! 
! 	boolean isActive() {
! 		return active;
! 	}
! 
! 	boolean getActive() {
! 		return active;
! 	}
! 
! 	void setActive(boolean active) {
! 		this.active = active;
! 	}
! 
! 	String getDescr() {
! 		return descr;
! 	}
! 
! 	void setDescr(String descr) {
! 		if(descr != null) {
! 			this.descr = descr;
! 		}
! 	}
! 
! 	public String toString() {
! 		return ifDescr + " [" + ifIndex + "] " + descr + ", " + ifAlias + " (each " +
! 			samplingInterval + "sec, active=" + active + ")";
! 	}
! 
! 	long getLastSampleTime() {
! 		return lastSampleTime;
! 	}
! 
! 	void setLastSampleTime(long lastSampleTime) {
! 		this.lastSampleTime = lastSampleTime;
! 	}
! 
! 	boolean isSampling() {
! 		return sampling;
! 	}
! 
! 	void setSampling(boolean sampling) {
! 		this.sampling = sampling;
! 	}
! 
! 	boolean isDue() {
! 		if(lastSampleTime == 0) {
! 			return true;
! 		}
! 		long elapsedTime = Util.getTime() - lastSampleTime;
! 		return elapsedTime >= samplingInterval;
! 	}
! 
! 	void switchToIfIndex(int ifIndex) throws MrtgException {
!         this.ifIndex = ifIndex;
! 		Server.getInstance().saveHardware();
! 	}
! 
! 	void deactivate() throws MrtgException {
! 		this.active = false;
! 		Server.getInstance().saveHardware();
! 	}
! 
! 	void processSample(RawSample sample) throws MrtgException {
! 		// check if ifDescr match
!         if(!getIfDescrCore().equals(sample.getIfDescr())) {
! 			// something changed on the router
! 			switchToIfIndex(-1);
! 			return;
! 		}
! 		sample.setIfDescr(ifDescr);
! 		if(lastSample != null && lastSample.getSysUpTime() >= sample.getSysUpTime() ) {
!             // sysUpTime decreased
! 			sample.setValid(false);
! 		}
! 		Debug.print("Saving sample: " + sample);
! 		Server.getInstance().getRrdWriter().store(sample);
! 		sampleCount++;
!         lastSample = sample;
! 		lastSampleTime = sample.getTimestamp();
! 	}
! 
! 	Hashtable getLinkInfo() {
! 		Hashtable link = new Hashtable();
! 		link.put("ifIndex", new Integer(ifIndex));
! 		link.put("ifDescr", ifDescr);
! 		link.put("ifAlias", ifAlias);
! 		link.put("descr", descr);
! 		link.put("samplingInterval", new Integer(samplingInterval));
! 		link.put("active", new Boolean(active));
! 		link.put("sampleCount", new Integer(sampleCount));
! 		if(lastSample != null) {
! 			link.put("lastSampleTime", new Date(lastSampleTime * 1000L));
! 			link.put("ifInOctets", String.valueOf(lastSample.getIfInOctets()));
! 			link.put("ifOutOctets", String.valueOf(lastSample.getIfOutOctets()));
! 			link.put("ifOperStatus", String.valueOf(lastSample.getIfOperStatus()));
! 		}
! 		return link;
! 	}
! 
! 	void appendXml(Element routerElem) {
!         Document doc = routerElem.getOwnerDocument();
! 		Element linkElem = doc.createElement("interface");
! 		routerElem.appendChild(linkElem);
! 		Element ifIndexElem = doc.createElement("ifIndex");
! 		ifIndexElem.appendChild(doc.createTextNode("" + ifIndex));
! 		linkElem.appendChild(ifIndexElem);
! 		Element ifDescrElem = doc.createElement("ifDescr");
! 		ifDescrElem.appendChild(doc.createTextNode(ifDescr));
! 		linkElem.appendChild(ifDescrElem);
! 		Element ifAliasElem = doc.createElement("ifAlias");
! 		ifAliasElem.appendChild(doc.createTextNode(ifAlias));
! 		linkElem.appendChild(ifAliasElem);
! 		Element descrElem = doc.createElement("description");
! 		descrElem.appendChild(doc.createTextNode(descr));
! 		linkElem.appendChild(descrElem);
! 		Element samplElem = doc.createElement("samplingInterval");
! 		samplElem.appendChild(doc.createTextNode("" + samplingInterval));
! 		linkElem.appendChild(samplElem);
! 		Element activeElem = doc.createElement("active");
! 		activeElem.appendChild(doc.createTextNode("" + active));
! 		linkElem.appendChild(activeElem);
! 	}
! }
--- 1,250 ----
! /* ============================================================
!  * JRobin : Pure java implementation of RRDTool's functionality
!  * ============================================================
!  *
!  * Project Info:  http://www.jrobin.org
!  * Project Lead:  Sasa Markovic (sa...@jr...);
!  *
!  * (C) Copyright 2003, by Sasa Markovic.
!  *
!  * Developers:    Sasa Markovic (sa...@jr...)
!  *                Arne Vandamme (cob...@jr...)
!  *
!  * This library is free software; you can redistribute it and/or modify it under the terms
!  * of the GNU Lesser General Public License as published by the Free Software Foundation;
!  * either version 2.1 of the License, or (at your option) any later version.
!  *
!  * This library 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 Lesser General Public License for more details.
!  *
!  * You should have received a copy of the GNU Lesser General Public License along with this
!  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
!  * Boston, MA 02111-1307, USA.
!  */
! package org.jrobin.mrtg.server;
! 
! import org.jrobin.core.Util;
! import org.jrobin.mrtg.Debug;
! import org.jrobin.mrtg.MrtgException;
! import org.w3c.dom.Document;
! import org.w3c.dom.Element;
! import org.w3c.dom.Node;
! import org.w3c.dom.NodeList;
! 
! import java.util.Date;
! import java.util.Hashtable;
! 
! class Port {
! 	static final int DEFAULT_SAMPLING_INTERVAL = 300;
! 
! 	private int ifIndex = -1;
! 	private String ifDescr = "";
! 	private String ifAlias = "";
! 	private String descr = "";
! 	private int samplingInterval = DEFAULT_SAMPLING_INTERVAL;
! 	private boolean active = true;
! 	private int sampleCount;
! 
! 	private long lastSampleTime;
! 	private RawSample lastSample;
! 	private boolean sampling;
! 
! 	Port() { }
! 
! 	Port(Node linkNode) {
! 		NodeList nodes = linkNode.getChildNodes();
! 		for(int i = 0; i < nodes.getLength(); i++) {
! 			Node node = nodes.item(i);
! 			String name = node.getNodeName();
! 			Node firstChild = node.getFirstChild();
! 			String value = (firstChild != null)? firstChild.getNodeValue().trim(): null;
!             if(name.equals("ifIndex")) {
! 				setIfIndex(Integer.parseInt(value));
! 			}
! 			else if(name.equals("ifDescr")) {
! 				setIfDescr(value);
! 			}
! 			else if(name.equals("ifAlias")) {
! 				setIfAlias(value);
! 			}
! 			else if(name.equals("description")) {
! 				setDescr(value);
! 			}
! 			else if(name.equals("samplingInterval")) {
! 				setSamplingInterval(Integer.parseInt(value));
! 			}
! 			else if(name.equals("active")) {
! 				setActive(new Boolean(value).booleanValue());
! 			}
! 		}
! 	}
! 
! 	int getIfIndex() {
! 		return ifIndex;
! 	}
! 
! 	void setIfIndex(int ifIndex) {
! 		this.ifIndex = ifIndex;
! 	}
! 
! 	String getIfDescr() {
! 		return ifDescr;
! 	}
! 
! 	String getIfDescrCore() {
! 		int index = ifDescr.indexOf("#");
! 		if(index != -1) {
! 			return ifDescr.substring(0, index);
! 		}
! 		else {
! 			return ifDescr;
! 		}
! 	}
! 
! 	void setIfDescr(String ifDescr) {
! 		if(ifDescr != null) {
! 			this.ifDescr = ifDescr;
! 		}
! 	}
! 
! 	String getIfAlias() {
! 		return ifAlias;
! 	}
! 
! 	void setIfAlias(String ifAlias) {
! 		if(ifAlias != null) {
! 			this.ifAlias = ifAlias;
! 		}
! 	}
! 
! 	int getSamplingInterval() {
! 		return samplingInterval;
! 	}
! 
! 	void setSamplingInterval(int samplingInterval) {
! 		this.samplingInterval = samplingInterval;
! 	}
! 
! 	boolean isActive() {
! 		return active;
! 	}
! 
! 	boolean getActive() {
! 		return active;
! 	}
! 
! 	void setActive(boolean active) {
! 		this.active = active;
! 	}
! 
! 	String getDescr() {
! 		return descr;
! 	}
! 
! 	void setDescr(String descr) {
! 		if(descr != null) {
! 			this.descr = descr;
! 		}
! 	}
! 
! 	public String toString() {
! 		return ifDescr + " [" + ifIndex + "] " + descr + ", " + ifAlias + " (each " +
! 			samplingInterval + "sec, active=" + active + ")";
! 	}
! 
! 	long getLastSampleTime() {
! 		return lastSampleTime;
! 	}
! 
! 	void setLastSampleTime(long lastSampleTime) {
! 		this.lastSampleTime = lastSampleTime;
! 	}
! 
! 	boolean isSampling() {
! 		return sampling;
! 	}
! 
! 	void setSampling(boolean sampling) {
! 		this.sampling = sampling;
! 	}
! 
! 	boolean isDue() {
! 		if(lastSampleTime == 0) {
! 			return true;
! 		}
! 		long elapsedTime = Util.getTime() - lastSampleTime;
! 		return elapsedTime >= samplingInterval;
! 	}
! 
! 	void switchToIfIndex(int ifIndex) throws MrtgException {
!         this.ifIndex = ifIndex;
! 		Server.getInstance().saveHardware();
! 	}
! 
! 	void deactivate() throws MrtgException {
! 		this.active = false;
! 		Server.getInstance().saveHardware();
! 	}
! 
! 	void processSample(RawSample sample) throws MrtgException {
! 		// check if ifDescr match
!         if(!getIfDescrCore().equals(sample.getIfDescr())) {
! 			// something changed on the router
! 			switchToIfIndex(-1);
! 			return;
! 		}
! 		sample.setIfDescr(ifDescr);
! 		if(lastSample != null && lastSample.getSysUpTime() >= sample.getSysUpTime() ) {
!             // sysUpTime decreased
! 			sample.setValid(false);
! 		}
! 		Debug.print("Saving sample: " + sample);
! 		Server.getInstance().getRrdWriter().store(sample);
! 		sampleCount++;
!         lastSample = sample;
! 		lastSampleTime = sample.getTimestamp();
! 	}
! 
! 	Hashtable getLinkInfo() {
! 		Hashtable link = new Hashtable();
! 		link.put("ifIndex", new Integer(ifIndex));
! 		link.put("ifDescr", ifDescr);
! 		link.put("ifAlias", ifAlias);
! 		link.put("descr", descr);
! 		link.put("samplingInterval", new Integer(samplingInterval));
! 		link.put("active", new Boolean(active));
! 		link.put("sampleCount", new Integer(sampleCount));
! 		if(lastSample != null) {
! 			link.put("lastSampleTime", new Date(lastSampleTime * 1000L));
! 			link.put("ifInOctets", String.valueOf(lastSample.getIfInOctets()));
! 			link.put("ifOutOctets", String.valueOf(lastSample.getIfOutOctets()));
! 			link.put("ifOperStatus", String.valueOf(lastSample.getIfOperStatus()));
! 		}
! 		return link;
! 	}
! 
! 	void appendXml(Element routerElem) {
!         Document doc = routerElem.getOwnerDocument();
! 		Element linkElem = doc.createElement("interface");
! 		routerElem.appendChild(linkElem);
! 		Element ifIndexElem = doc.createElement("ifIndex");
! 		ifIndexElem.appendChild(doc.createTextNode("" + ifIndex));
! 		linkElem.appendChild(ifIndexElem);
! 		Element ifDescrElem = doc.createElement("ifDescr");
! 		ifDescrElem.appendChild(doc.createTextNode(ifDescr));
! 		linkElem.appendChild(ifDescrElem);
! 		Element ifAliasElem = doc.createElement("ifAlias");
! 		ifAliasElem.appendChild(doc.createTextNode(ifAlias));
! 		linkElem.appendChild(ifAliasElem);
! 		Element descrElem = doc.createElement("description");
! 		descrElem.appendChild(doc.createTextNode(descr));
! 		linkElem.appendChild(descrElem);
! 		Element samplElem = doc.createElement("samplingInterval");
! 		samplElem.appendChild(doc.createTextNode("" + samplingInterval));
! 		linkElem.appendChild(samplElem);
! 		Element activeElem = doc.createElement("active");
! 		activeElem.appendChild(doc.createTextNode("" + active));
! 		linkElem.appendChild(activeElem);
! 	}
! }

Index: Server.java
===================================================================
RCS file: /cvsroot/jrobin/src/org/jrobin/mrtg/server/Server.java,v
retrieving revision 1.11
retrieving revision 1.12
diff -C2 -d -r1.11 -r1.12
*** Server.java	9 Apr 2004 09:29:17 -0000	1.11
--- Server.java	10 Apr 2004 10:31:30 -0000	1.12
***************
*** 1,296 ****
! /* ============================================================
!  * JRobin : Pure java implementation of RRDTool's functionality
!  * ============================================================
!  *
!  * Project Info:  http://www.jrobin.org
!  * Project Lead:  Sasa Markovic (sa...@jr...);
!  *
!  * (C) Copyright 2003, by Sasa Markovic.
!  *
!  * Developers:    Sasa Markovic (sa...@jr...)
!  *                Arne Vandamme (cob...@jr...)
!  *
!  * This library is free software; you can redistribute it and/or modify it under the terms
!  * of the GNU Lesser General Public License as published by the Free Software Foundation;
!  * either version 2.1 of the License, or (at your option) any later version.
!  *
!  * This library 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 Lesser General Public License for more details.
!  *
!  * You should have received a copy of the GNU Lesser General Public License along with this
!  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
!  * Boston, MA 02111-1307, USA.
!  */
! package org.jrobin.mrtg.server;
! 
! import org.jrobin.core.RrdDb;
! import org.jrobin.core.RrdDbPool;
! import org.jrobin.mrtg.MrtgException;
! import org.jrobin.mrtg.MrtgConstants;
! import org.w3c.dom.Document;
! import org.w3c.dom.Element;
! import org.w3c.dom.NodeList;
! 
! import javax.xml.parsers.DocumentBuilder;
! import javax.xml.parsers.DocumentBuilderFactory;
! import javax.xml.transform.OutputKeys;
! import javax.xml.transform.Transformer;
! import javax.xml.transform.TransformerFactory;
! import javax.xml.transform.dom.DOMSource;
! import javax.xml.transform.stream.StreamResult;
! import java.io.File;
! import java.io.FileOutputStream;
! import java.io.IOException;
! import java.io.FileWriter;
! import java.util.Date;
! import java.util.Hashtable;
! import java.util.Vector;
! 
! public class Server implements MrtgConstants {
! 	private static Server instance;
! 
! 	private DeviceList deviceList;
! 	private Date startDate;
! 
! 	private Timer timer;
! 	private RrdWriter rrdWriter;
! 	private Listener listener;
! 
! 	private boolean active = false;
! 
! 	public synchronized static Server getInstance() {
! 		if (instance == null) {
! 			instance = new Server();
! 		}
! 		return instance;
! 	}
! 
! 	private Server() {
! 		RrdDb.setLockMode(RrdDb.NO_LOCKS);
! 		RrdDbPool.getInstance().setCapacity(POOL_CAPACITY);
! 	}
! 
! 	public synchronized void start(String[] acceptedClients) throws MrtgException {
! 		if(active) {
! 			throw new MrtgException("Cannot start Server, already started");
! 		}
! 		// create template files
! 		try {
! 			createXmlTemplateIfNecessary(Config.getRrdTemplateFile(), RRD_TEMPLATE_STR);
! 			createXmlTemplateIfNecessary(Config.getGraphTemplateFile(), GRAPH_TEMPLATE_STR);
! 		}
! 		catch(IOException ioe) {
! 			throw new MrtgException(ioe);
! 		}
! 		// load configuration
! 		String hwFile = Config.getHardwareFile();
! 		if(new File(hwFile).exists()) {
! 			loadHardware();
! 		}
! 		else {
! 			saveHardware();
! 		}
! 		// create threads
! 		rrdWriter = new RrdWriter();
! 		timer = new Timer();
! 		listener = new Listener(acceptedClients);
! 		startDate = new Date();
! 		active = true;
! 	}
! 
! 	private void createXmlTemplateIfNecessary(String filePath, String fileContent)
! 		throws IOException {
! 		File file = new File(filePath);
! 		if(!file.exists()) {
! 			FileWriter writer = new FileWriter(filePath, false);
! 			writer.write(fileContent);
! 			writer.flush();
! 			writer.close();
! 		}
! 	}
! 
! 	public synchronized void stop() throws MrtgException {
! 		if(!active) {
! 			throw new MrtgException("Cannot stop Server, not started");
! 		}
! 		rrdWriter.terminate();
! 		timer.terminate();
! 		listener.terminate();
! 		active = false;
! 		try {
! 			RrdDbPool.getInstance().reset();
! 		} catch (IOException e) {
! 			throw new MrtgException(e);
! 		}
! 	}
! 
! 	void saveHardware() throws MrtgException {
! 		if(deviceList == null) {
! 			deviceList = new DeviceList();
! 		}
! 		try {
! 			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
! 			factory.setValidating(false);
! 			factory.setNamespaceAware(false);
! 			DocumentBuilder builder = factory.newDocumentBuilder();
! 			Document doc = builder.newDocument();
! 			Element root = doc.createElement("mrtg");
! 			doc.appendChild(root);
! 			Vector routers = deviceList.getRouters();
! 			for(int i = 0; i < routers.size(); i++) {
! 				Device router = (Device) routers.get(i);
! 				router.appendXml(root);
! 			}
! 			TransformerFactory tFactory = TransformerFactory.newInstance();
! 			Transformer transformer = tFactory.newTransformer();
! 			transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
! 			transformer.setOutputProperty(OutputKeys.METHOD, "xml");
! 			transformer.setOutputProperty(OutputKeys.INDENT, "yes");
! 			transformer.setOutputProperty(OutputKeys.MEDIA_TYPE, "text/xml");
! 			transformer.setOutputProperty(OutputKeys.STANDALONE, "yes");
! 			DOMSource source = new DOMSource(root);
! 			FileOutputStream destination = new FileOutputStream(Config.getHardwareFile());
! 			StreamResult result = new StreamResult(destination);
! 			transformer.transform(source, result);
! 			destination.close();
! 		} catch (Exception e) {
! 			throw new MrtgException(e);
! 		}
! 	}
! 
! 	private void loadHardware() throws MrtgException {
! 		try {
! 			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
! 			factory.setValidating(false);
! 			factory.setNamespaceAware(false);
! 			DocumentBuilder builder = factory.newDocumentBuilder();
! 			Document doc = builder.parse(new File(Config.getHardwareFile()));
! 			Element root = doc.getDocumentElement();
! 			NodeList nodes = root.getElementsByTagName("router");
! 			deviceList = new DeviceList();
! 			Vector routers = deviceList.getRouters();
! 			for(int i = 0; i < nodes.getLength(); i++) {
! 				routers.add(new Device(nodes.item(i)));
! 			}
! 		} catch (Exception e) {
! 			throw new MrtgException(e);
! 		}
! 	}
! 
! 	public String toString() {
! 		return deviceList.toString();
! 	}
! 
! 	synchronized int addRouter(String host, String community, String descr, boolean active)
! 		throws MrtgException {
! 		int retCode = deviceList.addRouter(host, community, descr, active);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int updateRouter(String host, String community, String descr, boolean active)
! 		throws MrtgException {
! 		int retCode = deviceList.updateRouter(host, community, descr, active);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int removeRouter(String host) throws MrtgException {
! 		int retCode = deviceList.removeRouter(host);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int addLink(String host, String ifDescr, String descr, int samplingInterval,
! 							 boolean active)
! 		throws MrtgException {
! 		int retCode = deviceList.addLink(host, ifDescr, descr, samplingInterval, active);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int updateLink(String host, String ifDescr, String descr,
! 								int samplingInterval, boolean active)
! 		throws MrtgException {
! 		int retCode = deviceList.updateLink(host, ifDescr, descr, samplingInterval, active);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int removeLink(String host, String ifDescr) throws MrtgException {
! 		int retCode = deviceList.removeLink(host, ifDescr);
! 		if(retCode == 0) {
! 			saveHardware();
! 			if(REMOVE_RRD_FOR_DEACTIVATED_LINK) {
! 				// remove the underlying RRD file
!         		String rrdFile = RrdWriter.getRrdFilename(host, ifDescr);
! 				new File(rrdFile).delete();
! 			}
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized byte[] getPngGraph(String host, String ifDescr, long start, long stop)
! 		throws MrtgException {
! 		Plotter grapher = new Plotter(host, ifDescr);
! 		return grapher.getPngGraphBytes(start, stop);
! 	}
! 
! 	synchronized Device[] getRouters() {
! 		return (Device[]) deviceList.getRouters().toArray(new Device[0]);
! 	}
! 
! 	String[] getAvailableLinks(String host) throws MrtgException {
! 		Device router = deviceList.getRouterByHost(host);
! 		try {
! 			if(router != null) {
! 				return router.getAvailableLinks();
! 			}
! 			else {
! 				return null;
! 			}
! 		} catch (IOException e) {
! 			throw new MrtgException(e);
! 		}
! 	}
! 
!     DeviceList getDeviceList() {
! 		return deviceList;
! 	}
! 
! 	RrdWriter getRrdWriter() {
! 		return rrdWriter;
! 	}
! 
! 	Date getStartDate() {
! 		return startDate;
! 	}
! 
! 	Hashtable getServerInfo() {
! 		Hashtable hash = new Hashtable();
! 		hash.put("sampleCount", new Integer(rrdWriter.getSampleCount()));
! 		hash.put("savesCount", new Integer(rrdWriter.getSavesCount()));
! 		hash.put("goodSavesCount", new Integer(rrdWriter.getGoodSavesCount()));
! 		hash.put("badSavesCount", new Integer(rrdWriter.getBadSavesCount()));
! 		hash.put("startDate", startDate);
! 		return hash;
! 	}
! 
! 	public static void main(String[] acceptedClients) throws Exception {
!         Server s = Server.getInstance();
! 		s.start(acceptedClients);
! 	}
! 
! }
! 
--- 1,296 ----
! /* ============================================================
!  * JRobin : Pure java implementation of RRDTool's functionality
!  * ============================================================
!  *
!  * Project Info:  http://www.jrobin.org
!  * Project Lead:  Sasa Markovic (sa...@jr...);
!  *
!  * (C) Copyright 2003, by Sasa Markovic.
!  *
!  * Developers:    Sasa Markovic (sa...@jr...)
!  *                Arne Vandamme (cob...@jr...)
!  *
!  * This library is free software; you can redistribute it and/or modify it under the terms
!  * of the GNU Lesser General Public License as published by the Free Software Foundation;
!  * either version 2.1 of the License, or (at your option) any later version.
!  *
!  * This library 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 Lesser General Public License for more details.
!  *
!  * You should have received a copy of the GNU Lesser General Public License along with this
!  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
!  * Boston, MA 02111-1307, USA.
!  */
! package org.jrobin.mrtg.server;
! 
! import org.jrobin.core.RrdDb;
! import org.jrobin.core.RrdDbPool;
! import org.jrobin.mrtg.MrtgException;
! import org.jrobin.mrtg.MrtgConstants;
! import org.w3c.dom.Document;
! import org.w3c.dom.Element;
! import org.w3c.dom.NodeList;
! 
! import javax.xml.parsers.DocumentBuilder;
! import javax.xml.parsers.DocumentBuilderFactory;
! import javax.xml.transform.OutputKeys;
! import javax.xml.transform.Transformer;
! import javax.xml.transform.TransformerFactory;
! import javax.xml.transform.dom.DOMSource;
! import javax.xml.transform.stream.StreamResult;
! import java.io.File;
! import java.io.FileOutputStream;
! import java.io.IOException;
! import java.io.FileWriter;
! import java.util.Date;
! import java.util.Hashtable;
! import java.util.Vector;
! 
! public class Server implements MrtgConstants {
! 	private static Server instance;
! 
! 	private DeviceList deviceList;
! 	private Date startDate;
! 
! 	private Timer timer;
! 	private RrdWriter rrdWriter;
! 	private Listener listener;
! 
! 	private boolean active = false;
! 
! 	public synchronized static Server getInstance() {
! 		if (instance == null) {
! 			instance = new Server();
! 		}
! 		return instance;
! 	}
! 
! 	private Server() {
! 		RrdDb.setLockMode(RrdDb.NO_LOCKS);
! 		RrdDbPool.getInstance().setCapacity(POOL_CAPACITY);
! 	}
! 
! 	public synchronized void start(String[] acceptedClients) throws MrtgException {
! 		if(active) {
! 			throw new MrtgException("Cannot start Server, already started");
! 		}
! 		// create template files
! 		try {
! 			createXmlTemplateIfNecessary(Config.getRrdTemplateFile(), RRD_TEMPLATE_STR);
! 			createXmlTemplateIfNecessary(Config.getGraphTemplateFile(), GRAPH_TEMPLATE_STR);
! 		}
! 		catch(IOException ioe) {
! 			throw new MrtgException(ioe);
! 		}
! 		// load configuration
! 		String hwFile = Config.getHardwareFile();
! 		if(new File(hwFile).exists()) {
! 			loadHardware();
! 		}
! 		else {
! 			saveHardware();
! 		}
! 		// create threads
! 		rrdWriter = new RrdWriter();
! 		timer = new Timer();
! 		listener = new Listener(acceptedClients);
! 		startDate = new Date();
! 		active = true;
! 	}
! 
! 	private void createXmlTemplateIfNecessary(String filePath, String fileContent)
! 		throws IOException {
! 		File file = new File(filePath);
! 		if(!file.exists()) {
! 			FileWriter writer = new FileWriter(filePath, false);
! 			writer.write(fileContent);
! 			writer.flush();
! 			writer.close();
! 		}
! 	}
! 
! 	public synchronized void stop() throws MrtgException {
! 		if(!active) {
! 			throw new MrtgException("Cannot stop Server, not started");
! 		}
! 		rrdWriter.terminate();
! 		timer.terminate();
! 		listener.terminate();
! 		active = false;
! 		try {
! 			RrdDbPool.getInstance().reset();
! 		} catch (IOException e) {
! 			throw new MrtgException(e);
! 		}
! 	}
! 
! 	void saveHardware() throws MrtgException {
! 		if(deviceList == null) {
! 			deviceList = new DeviceList();
! 		}
! 		try {
! 			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
! 			factory.setValidating(false);
! 			factory.setNamespaceAware(false);
! 			DocumentBuilder builder = factory.newDocumentBuilder();
! 			Document doc = builder.newDocument();
! 			Element root = doc.createElement("mrtg");
! 			doc.appendChild(root);
! 			Vector routers = deviceList.getRouters();
! 			for(int i = 0; i < routers.size(); i++) {
! 				Device router = (Device) routers.get(i);
! 				router.appendXml(root);
! 			}
! 			TransformerFactory tFactory = TransformerFactory.newInstance();
! 			Transformer transformer = tFactory.newTransformer();
! 			transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
! 			transformer.setOutputProperty(OutputKeys.METHOD, "xml");
! 			transformer.setOutputProperty(OutputKeys.INDENT, "yes");
! 			transformer.setOutputProperty(OutputKeys.MEDIA_TYPE, "text/xml");
! 			transformer.setOutputProperty(OutputKeys.STANDALONE, "yes");
! 			DOMSource source = new DOMSource(root);
! 			FileOutputStream destination = new FileOutputStream(Config.getHardwareFile());
! 			StreamResult result = new StreamResult(destination);
! 			transformer.transform(source, result);
! 			destination.close();
! 		} catch (Exception e) {
! 			throw new MrtgException(e);
! 		}
! 	}
! 
! 	private void loadHardware() throws MrtgException {
! 		try {
! 			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
! 			factory.setValidating(false);
! 			factory.setNamespaceAware(false);
! 			DocumentBuilder builder = factory.newDocumentBuilder();
! 			Document doc = builder.parse(new File(Config.getHardwareFile()));
! 			Element root = doc.getDocumentElement();
! 			NodeList nodes = root.getElementsByTagName("router");
! 			deviceList = new DeviceList();
! 			Vector routers = deviceList.getRouters();
! 			for(int i = 0; i < nodes.getLength(); i++) {
! 				routers.add(new Device(nodes.item(i)));
! 			}
! 		} catch (Exception e) {
! 			throw new MrtgException(e);
! 		}
! 	}
! 
! 	public String toString() {
! 		return deviceList.toString();
! 	}
! 
! 	synchronized int addRouter(String host, String community, String descr, boolean active)
! 		throws MrtgException {
! 		int retCode = deviceList.addRouter(host, community, descr, active);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int updateRouter(String host, String community, String descr, boolean active)
! 		throws MrtgException {
! 		int retCode = deviceList.updateRouter(host, community, descr, active);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int removeRouter(String host) throws MrtgException {
! 		int retCode = deviceList.removeRouter(host);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int addLink(String host, String ifDescr, String descr, int samplingInterval,
! 							 boolean active)
! 		throws MrtgException {
! 		int retCode = deviceList.addLink(host, ifDescr, descr, samplingInterval, active);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int updateLink(String host, String ifDescr, String descr,
! 								int samplingInterval, boolean active)
! 		throws MrtgException {
! 		int retCode = deviceList.updateLink(host, ifDescr, descr, samplingInterval, active);
! 		if(retCode == 0) {
! 			saveHardware();
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized int removeLink(String host, String ifDescr) throws MrtgException {
! 		int retCode = deviceList.removeLink(host, ifDescr);
! 		if(retCode == 0) {
! 			saveHardware();
! 			if(REMOVE_RRD_FOR_DEACTIVATED_LINK) {
! 				// remove the underlying RRD file
!         		String rrdFile = RrdWriter.getRrdFilename(host, ifDescr);
! 				new File(rrdFile).delete();
! 			}
! 		}
! 		return retCode;
! 	}
! 
! 	synchronized byte[] getPngGraph(String host, String ifDescr, long start, long stop)
! 		throws MrtgException {
! 		Plotter grapher = new Plotter(host, ifDescr);
! 		return grapher.getPngGraphBytes(start, stop);
! 	}
! 
! 	synchronized Device[] getRouters() {
! 		return (Device[]) deviceList.getRouters().toArray(new Device[0]);
! 	}
! 
! 	String[] getAvailableLinks(String host) throws MrtgException {
! 		Device router = deviceList.getRouterByHost(host);
! 		try {
! 			if(router != null) {
! 				return router.getAvailableLinks();
! 			}
! 			else {
! 				return null;
! 			}
! 		} catch (IOException e) {
! 			throw new MrtgException(e);
! 		}
! 	}
! 
!     DeviceList getDeviceList() {
! 		return deviceList;
! 	}
! 
! 	RrdWriter getRrdWriter() {
! 		return rrdWriter;
! 	}
! 
! 	Date getStartDate() {
! 		return startDate;
! 	}
! 
! 	Hashtable getServerInfo() {
! 		Hashtable hash = new Hashtable();
! 		hash.put("sampleCount", new Integer(rrdWriter.getSampleCount()));
! 		hash.put("savesCount", new Integer(rrdWriter.getSavesCount()));
! 		hash.put("goodSavesCount", new Integer(rrdWriter.getGoodSavesCount()));
! 		hash.put("badSavesCount", new Integer(rrdWriter.getBadSavesCount()));
! 		hash.put("startDate", startDate);
! 		return hash;
! 	}
! 
! 	public static void main(String[] acceptedClients) throws Exception {
!         Server s = Server.getInstance();
! 		s.start(acceptedClients);
! 	}
! 
! }
!