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/*_############################################################################
  _## 
  _##  SNMP4J-Agent 3 - CoexistenceInfo.java  
  _## 
  _##  Copyright (C) 2005-2018  Frank Fock (SNMP4J.org)
  _##  
  _##  Licensed under the Apache License, Version 2.0 (the "License");
  _##  you may not use this file except in compliance with the License.
  _##  You may obtain a copy of the License at
  _##  
  _##      http://www.apache.org/licenses/LICENSE-2.0
  _##  
  _##  Unless required by applicable law or agreed to in writing, software
  _##  distributed under the License is distributed on an "AS IS" BASIS,
  _##  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  _##  See the License for the specific language governing permissions and
  _##  limitations under the License.
  _##  
  _##########################################################################*/


package org.snmp4j.agent.mo.snmp;

import org.snmp4j.smi.*;

/**
 * A coexistence information object has attributes needed to map messages between different versions of the SNMP
 * protocol. A good portion of those attributes are from the SNMP-COMMUNITY-MIB.
 *
 * @author Frank Fock
 * @version 1.0
 */
public class CoexistenceInfo implements Comparable {

    private OctetString securityName;
    private OctetString contextEngineID;
    private OctetString contextName;
    private OctetString transportTag;
    private int maxMessageSize = Integer.MAX_VALUE;

    /**
     * Creates an context info object based on a security name, context engine ID, and context name. The transport tag
     * is not defined (= null).
     *
     * @param securityName
     *         a security name.
     * @param contextEngineID
     *         a context engine ID.
     * @param contextName
     *         a context name
     */
    public CoexistenceInfo(OctetString securityName,
                           OctetString contextEngineID,
                           OctetString contextName) {
        this.securityName = securityName;
        this.contextEngineID = contextEngineID;
        this.contextName = contextName;
    }

    /**
     * Creates an context info object based on a security name, context engine ID, context name, and transport tag.
     *
     * @param securityName
     *         a security name.
     * @param contextEngineID
     *         a context engine ID.
     * @param contextName
     *         a context name
     * @param transportTag
     *         a tag identifying the transport within the SNMP-TARGET-MIB that is associated with the SNMP message on
     *         behalf of which this coexistence information is created.
     */
    public CoexistenceInfo(OctetString securityName,
                           OctetString contextEngineID,
                           OctetString contextName,
                           OctetString transportTag) {
        this(securityName, contextEngineID, contextName);
        this.transportTag = transportTag;
    }

    public void setTransportTag(OctetString transportTag) {
        this.transportTag = transportTag;
    }

    public void setMaxMessageSize(int maxMessageSize) {
        this.maxMessageSize = maxMessageSize;
    }

    public OctetString getSecurityName() {
        return securityName;
    }

    public OctetString getContextEngineID() {
        return contextEngineID;
    }

    public OctetString getContextName() {
        return contextName;
    }

    public OctetString getTransportTag() {
        return transportTag;
    }

    public int getMaxMessageSize() {
        return maxMessageSize;
    }

    public String toString() {
        return "CoexistenceInfo[securityName=" + getSecurityName() +
                ",contextEngineID=" + getContextEngineID() +
                ",contextName=" + getContextName() +
                ",transportTag=" + getTransportTag() + "]";
    }

    public boolean equals(Object o) {
        if (o instanceof CoexistenceInfo) {
            return (compareTo((CoexistenceInfo) o) == 0);
        }
        return false;
    }

    public int hashCode() {
        return securityName.hashCode();
    }

    /**
     * Compares this object with the specified object for order.
     *
     * @param other
     *         the Object to be compared.
     *
     * @return a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than
     * the specified object.
     */
    public int compareTo(CoexistenceInfo other) {
        int c = other.getSecurityName().compareTo(getSecurityName());
        if (c == 0) {
            c = other.getContextEngineID().compareTo(getContextEngineID());
        }
        if (c == 0) {
            c = other.getContextName().compareTo(getContextName());
        }
        return c;
    }
}




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