Examples with ImmutableByteSequence org.onlab.util.ImmutableByteSequence used on opensource projects

Example 1 with ImmutableByteSequence

use of org.onlab.util.ImmutableByteSequence in project onos by opennetworkinglab.

the class PiExactFieldMatchTest method testConstruction.

/**
 * Checks the construction of a PiExactFieldMatch object.
 */
@Test
public void testConstruction() {
    final ImmutableByteSequence value = copyFrom(0x0806);
    final PiMatchFieldId piMatchField = PiMatchFieldId.of(ETH_HEADER_NAME + DOT + ETH_TYPE);
    PiExactFieldMatch piExactFieldMatch = new PiExactFieldMatch(piMatchField, value);
    assertThat(piExactFieldMatch, is(notNullValue()));
    assertThat(piExactFieldMatch.value(), is(value));
    assertThat(piExactFieldMatch.type(), is(PiMatchType.EXACT));
}

Example 2 with ImmutableByteSequence

use of org.onlab.util.ImmutableByteSequence in project onos by opennetworkinglab.

the class PiLpmFieldMatchTest method testConstruction.

/**
 * Checks the construction of a PiLpmFieldMatch object.
 */
@Test
public void testConstruction() {
    final ImmutableByteSequence value = copyFrom(0x0a01010a);
    int prefix = 24;
    final PiMatchFieldId piMatchField = PiMatchFieldId.of(IPV4_HEADER_NAME + DOT + DST_ADDR);
    PiLpmFieldMatch piLpmFieldMatch = new PiLpmFieldMatch(piMatchField, value, prefix);
    assertThat(piLpmFieldMatch, is(notNullValue()));
    assertThat(piLpmFieldMatch.value(), is(value));
    assertThat(piLpmFieldMatch.prefixLength(), is(prefix));
    assertThat(piLpmFieldMatch.type(), is(PiMatchType.LPM));
}

Example 3 with ImmutableByteSequence

use of org.onlab.util.ImmutableByteSequence in project onos by opennetworkinglab.

the class PiRangeFieldMatchTest method testConstruction.

/**
 * Checks the construction of a PiRangeFieldMatch object.
 */
@Test
public void testConstruction() {
    final ImmutableByteSequence high = copyFrom(0x50);
    final ImmutableByteSequence low = copyFrom(0x00);
    final PiMatchFieldId piMatchField = PiMatchFieldId.of(VLAN_HEADER_NAME + DOT + VID);
    PiRangeFieldMatch piRangeFieldMatch = new PiRangeFieldMatch(piMatchField, low, high);
    assertThat(piRangeFieldMatch, is(notNullValue()));
    assertThat(piRangeFieldMatch.lowValue(), is(low));
    assertThat(piRangeFieldMatch.highValue(), is(high));
    assertThat(piRangeFieldMatch.type(), is(PiMatchType.RANGE));
}

Example 4 with ImmutableByteSequence

use of org.onlab.util.ImmutableByteSequence in project onos by opennetworkinglab.

the class CriterionTranslatorHelper method translateCriterion.

/**
 * Translates a given criterion instance to a PiFieldMatch with the given id, match type, and bit-width.
 *
 * @param fieldId   PI match field identifier
 * @param criterion criterion
 * @param matchType match type
 * @param bitWidth  size of the field match in bits
 * @return a PI field match
 * @throws PiTranslationException if the criterion cannot be translated (see exception message)
 */
static PiFieldMatch translateCriterion(Criterion criterion, PiMatchFieldId fieldId, PiMatchType matchType, int bitWidth) throws PiTranslationException {
    if (!TRANSLATORS.containsKey(criterion.getClass())) {
        throw new PiTranslationException(format("Translation of criterion class %s is not implemented.", criterion.getClass().getSimpleName()));
    }
    try {
        final CriterionTranslator translator = TRANSLATORS.get(criterion.getClass()).newInstance();
        translator.init(criterion, bitWidth);
        switch(matchType) {
            case EXACT:
                return new PiExactFieldMatch(fieldId, translator.exactMatch());
            case OPTIONAL:
                return new PiOptionalFieldMatch(fieldId, translator.exactMatch());
            case TERNARY:
                final Pair<ImmutableByteSequence, ImmutableByteSequence> tp = translator.ternaryMatch();
                return new PiTernaryFieldMatch(fieldId, tp.getLeft(), tp.getRight());
            case LPM:
                final Pair<ImmutableByteSequence, Integer> lp = translator.lpmMatch();
                return new PiLpmFieldMatch(fieldId, lp.getLeft(), lp.getRight());
            default:
                throw new PiTranslationException(format("Translation of criterion %s (%s class) to match type %s is not implemented.", criterion.type().name(), criterion.getClass().getSimpleName(), matchType.name()));
        }
    } catch (ByteSequenceTrimException e) {
        throw new PiTranslationException(format("Size mismatch for criterion %s: %s", criterion.type(), e.getMessage()));
    } catch (CriterionTranslatorException e) {
        throw new PiTranslationException(format("Unable to translate criterion %s: %s", criterion.type(), e.getMessage()));
    } catch (InstantiationException | IllegalAccessException e) {
        // Was not able to instantiate the criterion translator.
        throw new IllegalStateException(e);
    }
}

Example 5 with ImmutableByteSequence

use of org.onlab.util.ImmutableByteSequence in project onos by opennetworkinglab.

the class PiCriterionTranslatorsTest method testTernaryToLpmTranslation.

@Test
public void testTernaryToLpmTranslation() throws Exception {
    EthCriterion criterion = (EthCriterion) Criteria.matchEthDstMasked(MacAddress.ONOS, MacAddress.IPV4_MULTICAST_MASK);
    PiLpmFieldMatch lpmMatch = (PiLpmFieldMatch) translateCriterion(criterion, fieldId, LPM, MacAddress.MAC_ADDRESS_LENGTH * Byte.SIZE);
    ImmutableByteSequence expectedValue = ImmutableByteSequence.copyFrom(MacAddress.ONOS.toBytes());
    assertThat(lpmMatch.prefixLength(), is(25));
    assertThat(lpmMatch.value(), is(expectedValue));
}