dwsnmpoidsupport.java

用JAVA实现的MIB浏览器

package com.dwipal;

import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.JTree;
import javax.swing.*;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeNode;
import javax.swing.event.TreeSelectionListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.tree.TreeSelectionModel;
import java.util.Vector;
import java.util.Hashtable;
import java.util.Enumeration;
import java.io.File;

public class DwSnmpOidSupport
{

	DwSnmpMibTreeHash oidResolveHash;
	DwSnmpMibOutputHandler output=null;

	DwSnmpOidSupport() {
		oidResolveHash=new DwSnmpMibTreeHash();
		outputText("OID Support Library initialized");
	}

	public String getNodeOid(DefaultMutableTreeNode node) {
		String strPath="";
                DwSnmpMibRecord  nodeInfo = (DwSnmpMibRecord )node.getUserObject();
		if(nodeInfo.recordType==nodeInfo.recVariable) return(nodeInfo.name + "-" + nodeInfo.syntax);
		try	{
			TreeNode[] nodePath= node.getPath();
		 	DwSnmpMibRecord recTemp;
			if (nodePath.length < 2 ) return(".");
			for(int i=2;i<nodePath.length;i++)	{
				recTemp=(DwSnmpMibRecord)(((DefaultMutableTreeNode)nodePath[i]).getUserObject());
				//System.out.println(recTemp.name + "  " + recTemp.number);
				strPath=strPath.concat("." + String.valueOf (recTemp.number ));
			}
		}
		catch (Exception e1) {
				return("Error in getting path..\n"+e1.toString());
		}
		// Node OID Obtained, now check if it is in a table
		// For Table Element
		//System.out.println("Getting OID Name...");
		if(nodeInfo.recordType  == 3)
		{
			DwSnmpMibRecord  recParTemp=(DwSnmpMibRecord) ((DefaultMutableTreeNode)node.getParent()).getUserObject();
			if(recParTemp.tableEntry==-1)	strPath=strPath.concat(".("+1 + " - " + "n"+")");
			else
				strPath=strPath.concat(".(" + 1 + " - " + String.valueOf(recParTemp.tableEntry)+")");
		}
		else
		if(nodeInfo.recordType  == 2)
		{
			if(nodeInfo.tableEntry==-1)	strPath=strPath.concat(".(1-"+node.getChildCount()+")"+ ".(1-" + "n)");
			else
				strPath=strPath.concat(".(1-"+node.getChildCount()+")"+ ".(1-" + String.valueOf(nodeInfo.tableEntry)+")");
		}
		else
		if(node.isLeaf() == true) strPath=strPath.concat(".0");
		else
		strPath=strPath.concat(".*");
		//System.out.println(strPath);
		return strPath;


	}
	/**  END OF getNodeOid
	 */

	/** getNodeOidQuery : RETURNS OID VALUES SUCH THAT THEY CAN
	 *					  BE STRAIGHTAWAY USED FOR QUERIES
	 */

	public String getNodeOidQuery(DefaultMutableTreeNode node) {

		String strPath="";
        DwSnmpMibRecord  nodeInfo = (DwSnmpMibRecord )node.getUserObject();
		try	{
			TreeNode[] nodePath= node.getPath();
			DwSnmpMibRecord recTemp;
			if (nodePath.length < 2 ) return(".");
			for(int i=2;i<nodePath.length;i++)	{
				recTemp=(DwSnmpMibRecord)(((DefaultMutableTreeNode)nodePath[i]).getUserObject());
				//System.out.println(recTemp.name + "  " + recTemp.number);
				strPath=strPath.concat("." + String.valueOf (recTemp.number ));
			}
		}
		catch (Exception e1) {
				outputError("Error in getting path..\n"+e1.toString());
				return "";
		}
		// Node OID Obtained, now check if it is in a table
		// For Table Element
		if(nodeInfo.recordType  == 3)
		{
			DwSnmpMibRecord  recParTemp=(DwSnmpMibRecord) ((DefaultMutableTreeNode)node.getParent()).getUserObject();
			if(recParTemp.tableEntry==-1)	strPath=strPath.concat(".65535");
			else
				strPath=strPath.concat("."+String.valueOf(recParTemp.tableEntry));
		}
		else
		if(nodeInfo.recordType  == 2)
		{
			if(nodeInfo.tableEntry==-1)	strPath=strPath.concat(".1.1");
			else
				strPath=strPath.concat(".1." + String.valueOf(nodeInfo.tableEntry));
		}
		else
		if(node.isLeaf() == true) strPath=strPath.concat(".0");
		else
		strPath=strPath.concat(".0");
		return strPath;
	}
	/**  END OF getNodeOidQuery
	 */



	/** getNodeOidActual	RETURNS THE ACTUAL OID, WITHOUT
	 *						APPENDING ANYTHING. MAINLY USED
	 *						FOR OID TO NAME RESOLVING.
	 *
	 */
	public String getNodeOidActual(DefaultMutableTreeNode node) {

		String strPath="";
        DwSnmpMibRecord  nodeInfo = (DwSnmpMibRecord )node.getUserObject();
		try	{
			TreeNode[] nodePath= node.getPath();
			DwSnmpMibRecord recTemp;
			if (nodePath.length < 2 ) return(".");
			for(int i=2;i<nodePath.length;i++)	{
				recTemp=(DwSnmpMibRecord)(((DefaultMutableTreeNode)nodePath[i]).getUserObject());
				//System.out.println(recTemp.name + "  " + recTemp.number);
				strPath=strPath.concat("." + String.valueOf (recTemp.number ));
			}
		}
		catch (Exception e1) {
				outputError("Error in getting path..\n"+e1.toString());
				return("Error, cannot resolve OID name");
		}
		return strPath;
	}

	void buildOidToNameResolutionTable(DefaultMutableTreeNode treeRoot)
	{
		try {
			DefaultMutableTreeNode node;
			DwSnmpMibRecord nodeRec;
			Enumeration enu=treeRoot.breadthFirstEnumeration();
			while(enu.hasMoreElements()) {
				node=(DefaultMutableTreeNode) enu.nextElement();
				nodeRec=(DwSnmpMibRecord) node.getUserObject();
				String sRec=getNodeOidActual(node);
				oidResolveHash.put(sRec,nodeRec.name);
			}
		}
		catch (Exception e) {
			outputError("Error in building OID table..\n"+e.toString());
		}
	}

	public String resolveOidName(String oid)
	{
		String objName=null;
		String oidCopy;

                if(oid.startsWith(".")) oidCopy=oid.toString();
                else oidCopy="." + oid.toString();

		try {
			oidCopy=oidCopy.substring(0,oidCopy.lastIndexOf('.'));

			while(objName==null && oidCopy.length()>2) {
				objName=(String)oidResolveHash.get(oidCopy);
				oidCopy=oidCopy.substring(0,oidCopy.lastIndexOf('.'));
			}
			if(objName==null) return("***");
		}
		catch(Exception e) { System.out.println("Error in Resolving OID Name :\n " + e.toString()); }
		return(objName+oid.substring(oid.indexOf(".",oidCopy.length()+1)));
	}


	public void setOutput(DwSnmpMibOutputHandler output) {
		this.output=output;
	}
	void outputText(String s) {
		try {
		output.println(s);
		} catch(Exception e) {
			System.out.println(s);
		}
	}
	void outputError(String s) {
		try {
		output.printError(s);
		} catch(Exception e) {
			System.out.println(s);
		}
	}
}