org.opennms.netmgt.snmp

Class AbstractSnmpValue

java.lang.Object

org.opennms.netmgt.snmp.AbstractSnmpValue

All Implemented Interfaces:

SnmpValue

Direct Known Subclasses:

MockSnmpValue, Snmp4JValue

public abstract class AbstractSnmpValue
extends Object
implements SnmpValue

Field Summary

Fields inherited from interface org.opennms.netmgt.snmp.SnmpValue

SNMP_COUNTER32, SNMP_COUNTER64, SNMP_END_OF_MIB, SNMP_GAUGE32, SNMP_INT32, SNMP_IPADDRESS, SNMP_NO_SUCH_INSTANCE, SNMP_NO_SUCH_OBJECT, SNMP_NULL, SNMP_OBJECT_IDENTIFIER, SNMP_OCTET_STRING, SNMP_OPAQUE, SNMP_TIMETICKS

Constructor Summary

Constructors

Constructor and Description
AbstractSnmpValue()

Method Summary

Modifier and Type	Method and Description
static boolean	allBytesDisplayable(byte[] bytes)
static boolean	allBytesISO_8859_1(byte[] bytes) If the value is in the unprintable ASCII range (< 32) and is not a:
static boolean	allBytesUTF_8(byte[] bytes) Based on a modified version of http://stackoverflow.com/a/1447720 for UTF-8 detection.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.opennms.netmgt.snmp.SnmpValue

getBytes, getType, isDisplayable, isEndOfMib, isError, isNull, isNumeric, toBigInteger, toDisplayString, toHexString, toInetAddress, toInt, toLong, toSnmpObjId

Constructor Detail

AbstractSnmpValue

public AbstractSnmpValue()

Method Detail

allBytesDisplayable

public static boolean allBytesDisplayable(byte[] bytes)

allBytesUTF_8

public static boolean allBytesUTF_8(byte[] bytes)

Based on a modified version of http://stackoverflow.com/a/1447720 for UTF-8 detection.

allBytesISO_8859_1

public static boolean allBytesISO_8859_1(byte[] bytes)

If the value is in the unprintable ASCII range (< 32) and is not a:

• Tab (9)
• Linefeed (10)
• Carriage return (13)

...or the byte is Delete (127) then this method will return false. Also, if the byte array has a NULL byte (0) that occurs anywhere besides the last character, return false. We will allow the NULL byte as a special case at the end of the string.