io.pkts.packet

Class PreConditions

java.lang.Object

io.pkts.packet.PreConditions

public class PreConditions
extends Object

Note: as pkts.io will move to sniceio instead, we will use the PreConditions class that exists within sniceio-commons. The current one within pkts.io is very SIP focused and since we really cannot use it for the general use case, and since the port to pkts.io will be breaking changes and as such, requires a major version bump, we will copy paste the one from sniceio-commons to here for now. Not great but better than writing manual "asserts" all the time.

Method Summary

Modifier and Type	Method and Description
static void	assertArgument(boolean expression)
static void	assertArgument(boolean expression, String msg)
static void	assertArray(byte[] array)
static void	assertArray(byte[] array, int offset, int length)
static void	assertArray(byte[] array, int offset, int length, String msg)
static <T> Collection<T>	assertCollectionNotEmpty(Collection<T> reference)
static <T> Collection<T>	assertCollectionNotEmpty(Collection<T> reference, String msg)
static String	assertNotEmpty(String reference)
static String	assertNotEmpty(String reference, String msg)
static <T> T	assertNotNull(T reference)
static <T> T	assertNotNull(T reference, String msg)
static <T> void	assertNull(T reference)
static <T> void	assertNull(T reference, String msg)
static boolean	checkIfEmpty(String string)
static boolean	checkIfNotEmpty(String string)
static String	ensureNotEmpty(String reference, String msg)
static <T> T	ensureNotNull(T reference)
static <T> T	ensureNotNull(T reference, String msg)
static <T> T	ifNull(T reference, T defaultValue)

Methods inherited from class java.lang.Object

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

Method Detail

assertNull

public static <T> void assertNull(T reference,
                                  String msg)
                           throws IllegalArgumentException

Throws:

IllegalArgumentException

assertNull

public static <T> void assertNull(T reference)
                           throws IllegalArgumentException

Throws:

IllegalArgumentException

assertNotNull

public static <T> T assertNotNull(T reference,
                                  String msg)
                           throws IllegalArgumentException

Throws:

IllegalArgumentException

assertNotNull

public static <T> T assertNotNull(T reference)
                           throws IllegalArgumentException

Throws:

IllegalArgumentException

assertNotEmpty

public static String assertNotEmpty(String reference)
                             throws IllegalArgumentException

Throws:

IllegalArgumentException

assertNotEmpty

public static String assertNotEmpty(String reference,
                                    String msg)
                             throws IllegalArgumentException

Throws:

IllegalArgumentException

assertCollectionNotEmpty

public static <T> Collection<T> assertCollectionNotEmpty(Collection<T> reference)
                                                  throws IllegalArgumentException

Throws:

IllegalArgumentException

assertCollectionNotEmpty

public static <T> Collection<T> assertCollectionNotEmpty(Collection<T> reference,
                                                         String msg)
                                                  throws IllegalArgumentException

Throws:

IllegalArgumentException

assertArgument

public static void assertArgument(boolean expression,
                                  String msg)
                           throws IllegalArgumentException

Throws:

IllegalArgumentException

assertArgument

public static void assertArgument(boolean expression)
                           throws IllegalArgumentException

Throws:

IllegalArgumentException

assertArray

public static void assertArray(byte[] array,
                               int offset,
                               int length,
                               String msg)
                        throws IllegalArgumentException

Throws:

IllegalArgumentException

assertArray

public static void assertArray(byte[] array)
                        throws IllegalArgumentException

Throws:

IllegalArgumentException

assertArray

public static void assertArray(byte[] array,
                               int offset,
                               int length)
                        throws IllegalArgumentException

Throws:

IllegalArgumentException

ensureNotNull

public static <T> T ensureNotNull(T reference,
                                  String msg)
                           throws IllegalArgumentException

Throws:

IllegalArgumentException

ensureNotNull

public static <T> T ensureNotNull(T reference)
                           throws IllegalArgumentException

Throws:

IllegalArgumentException

ensureNotEmpty

public static String ensureNotEmpty(String reference,
                                    String msg)
                             throws IllegalArgumentException

Throws:

IllegalArgumentException

checkIfEmpty

public static boolean checkIfEmpty(String string)

checkIfNotEmpty

public static boolean checkIfNotEmpty(String string)

ifNull

public static <T> T ifNull(T reference,
                           T defaultValue)