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package com.sun.jmx.snmp.agent;
// java imports
//
import java.io.Serializable;
import java.util.Vector;
import java.util.Enumeration;
// jmx imports
//
import com.sun.jmx.snmp.SnmpOid;
Represents a SNMP index.
An SnmpIndex is represented as a Vector of SnmpOid.
This class is used internally and by the classes generated by mibgen.
You should not need to use this class directly.
This API is a Sun Microsystems internal API and is subject
to change without notice.
/**
* Represents a SNMP index.
* An <CODE>SnmpIndex</CODE> is represented as a <CODE>Vector</CODE> of <CODE>SnmpOid</CODE>.
* <P>
* This class is used internally and by the classes generated by <CODE>mibgen</CODE>.
* You should not need to use this class directly.
*
* <p><b>This API is a Sun Microsystems internal API and is subject
* to change without notice.</b></p>
*/
public class SnmpIndex implements Serializable {
private static final long serialVersionUID = 8712159739982192146L;
Initializes an SnmpIndex using a vector of object identifiers.
Following the RFC recommendations, every syntax that is used as a
table index should have an object identifier representation. There are
some guidelines on how to map the different syntaxes into an object identifier.
In the different SnmpValue classes provided, there is a toOid method to get
the object identifier of the value.
Params: - oidList – The list of Object Identifiers.
/**
* Initializes an <CODE>SnmpIndex</CODE> using a vector of object identifiers.
* <P>Following the RFC recommendations, every syntax that is used as a
* table index should have an object identifier representation. There are
* some guidelines on how to map the different syntaxes into an object identifier.
* In the different <CODE>SnmpValue</CODE> classes provided, there is a <CODE>toOid</CODE> method to get
* the object identifier of the value.
*
* @param oidList The list of Object Identifiers.
*/
public SnmpIndex(SnmpOid[] oidList) {
size= oidList.length;
for(int i= 0; i <size; i++) {
// The order is important ...
//
oids.addElement(oidList[i]);
}
}
Initializes an SnmpIndex using the specified Object Identifier.
Params: - oid – The Object Identifier.
/**
* Initializes an <CODE>SnmpIndex</CODE> using the specified Object Identifier.
*
* @param oid The Object Identifier.
*/
public SnmpIndex(SnmpOid oid) {
oids.addElement(oid);
size= 1;
}
Gets the number of Object Identifiers the index is made of.
Returns: The number of Object Identifiers.
/**
* Gets the number of Object Identifiers the index is made of.
*
* @return The number of Object Identifiers.
*/
public int getNbComponents() {
return size;
}
Gets the index as a vector of Object Identifiers.
Returns: The index as a vector.
/**
* Gets the index as a vector of Object Identifiers.
*
* @return The index as a vector.
*/
public Vector<SnmpOid> getComponents() {
return oids;
}
Compares two indexes for equality.
Params: - index – The index to compare
this with.
Returns: true if the two indexes are equal, false otherwise.
/**
* Compares two indexes for equality.
*
* @param index The index to compare <CODE>this</CODE> with.
*
* @return <CODE>true</CODE> if the two indexes are equal, <CODE>false</CODE> otherwise.
*/
public boolean equals(SnmpIndex index) {
if (size != index.getNbComponents())
return false;
// The two vectors have the same length.
// Compare each single element ...
//
SnmpOid oid1;
SnmpOid oid2;
Vector<SnmpOid> components= index.getComponents();
for(int i=0; i <size; i++) {
oid1= oids.elementAt(i);
oid2= components.elementAt(i);
if (oid1.equals(oid2) == false)
return false;
}
return true;
}
Compares two indexes.
Params: - index – The index to compare
this with.
Returns: The value 0 if the two OID vectors have the same elements, another value otherwise.
/**
* Compares two indexes.
*
* @param index The index to compare <CODE>this</CODE> with.
*
* @return The value 0 if the two OID vectors have the same elements, another value otherwise.
*/
public int compareTo(SnmpIndex index) {
int length= index.getNbComponents();
Vector<SnmpOid> components= index.getComponents();
SnmpOid oid1;
SnmpOid oid2;
int comp;
for(int i=0; i < size; i++) {
if ( i > length) {
// There is no more element in the index
//
return 1;
}
// Access the element ...
//
oid1= oids.elementAt(i);
oid2= components.elementAt(i);
comp= oid1.compareTo(oid2);
if (comp == 0)
continue;
return comp;
}
return 0;
}
Returns a String representation of the index.
The different elements are separated by "//".
Returns: A string representation of the index.
/**
* Returns a <CODE>String</CODE> representation of the index.
* The different elements are separated by "//".
*
* @return A string representation of the index.
*/
public String toString() {
StringBuffer msg= new StringBuffer();
for(Enumeration e= oids.elements(); e.hasMoreElements(); ) {
SnmpOid val= (SnmpOid) e.nextElement();
msg.append( "//" + val.toString());
}
return msg.toString();
}
// PRIVATE VARIABLES
//------------------
The list of OIDs.
@serial
/**
* The list of OIDs.
* @serial
*/
private Vector<SnmpOid> oids = new Vector<SnmpOid>();
The number of elements in the index.
@serial
/**
* The number of elements in the index.
* @serial
*/
private int size = 0;
}