org.opendaylight.cardinal.impl.MOTableBuilder Maven / Gradle / Ivy

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/*
 * Copyright © 2015 TCS and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.cardinal.impl;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.snmp4j.agent.MOAccess;
import org.snmp4j.agent.mo.DefaultMOMutableRow2PC;
import org.snmp4j.agent.mo.DefaultMOTable;
import org.snmp4j.agent.mo.MOAccessImpl;
import org.snmp4j.agent.mo.MOColumn;
import org.snmp4j.agent.mo.MOMutableTableModel;
import org.snmp4j.agent.mo.MOTable;
import org.snmp4j.agent.mo.MOTableIndex;
import org.snmp4j.agent.mo.MOTableSubIndex;
import org.snmp4j.smi.Integer32;
import org.snmp4j.smi.OID;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.SMIConstants;
import org.snmp4j.smi.Variable;

/**
 *
 * @author Subodh Roy
 *
 */

public class MOTableBuilder {

    private MOTableSubIndex[] subIndexes = new MOTableSubIndex[] { new MOTableSubIndex(SMIConstants.SYNTAX_INTEGER) };
    private MOTableIndex indexDef = new MOTableIndex(subIndexes, false);

    private final List columns = new ArrayList();
    private final List tableRows = new ArrayList();
    private int currentRow = 0;
    private int currentCol = 0;

    private OID tableRootOid;

    private int colTypeCnt = 0;

    /**
     * Specified oid is the root oid of this table
     */
    public MOTableBuilder(OID oid) {
        this.tableRootOid = oid;
    }

    public MOTableBuilder addColumnType(int syntax, MOAccess access) {
        colTypeCnt++;
        columns.add(new MOColumn(colTypeCnt, syntax, access));
        return this;
    }

    public MOTableBuilder addRowValue(Variable variable) {
        if (tableRows.size() == currentRow) {
            tableRows.add(new Variable[columns.size()]);
        }
        tableRows.get(currentRow)[currentCol] = variable;
        currentCol++;
        if (currentCol >= columns.size()) {
            currentRow++;
            currentCol = 0;
        }
        return this;
    }

    public MOTable build() {
        DefaultMOTable ifTable = new DefaultMOTable(tableRootOid, indexDef, columns.toArray(new MOColumn[0]));
        MOMutableTableModel model = (MOMutableTableModel) ifTable.getModel();
        int i = 1;

        for (Variable[] variables : tableRows) {
            model.addRow(new DefaultMOMutableRow2PC(new OID(String.valueOf(i)), variables));
            i++;
        }
        ifTable.setVolatile(true);
        return ifTable;
    }
}