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-rw-r--r--v3po/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TranslateUtils.java109
1 files changed, 109 insertions, 0 deletions
diff --git a/v3po/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TranslateUtils.java b/v3po/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TranslateUtils.java
new file mode 100644
index 000000000..9f6f1f676
--- /dev/null
+++ b/v3po/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TranslateUtils.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * 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 io.fd.honeycomb.v3po.translate.v3po.util;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import com.google.common.base.Splitter;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+import java.util.function.BiConsumer;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
+import org.openvpp.jvpp.dto.JVppReply;
+
+public final class TranslateUtils {
+
+ // TODO move to vpp-translate-utils
+
+ public static final Splitter COLON_SPLITTER = Splitter.on(':');
+
+ private TranslateUtils() {}
+
+ public static <REP extends JVppReply<?>> REP getReply(Future<REP> future) {
+ try {
+ return future.get();
+ } catch (InterruptedException e) {
+ Thread.currentThread().interrupt();
+ throw new IllegalStateException("Interrupted", e);
+ } catch (ExecutionException e) {
+ // Execution exception should not occur, since we are using return codes for errors
+ // TODO fix when using exceptions instead of return codes
+ throw new IllegalArgumentException("Future " + " should not fail with an exception", e);
+ }
+ }
+
+ public static byte[] ipv4AddressNoZoneToArray(final Ipv4AddressNoZone ipv4Addr) {
+ byte[] retval = new byte[4];
+ String[] dots = ipv4Addr.getValue().split("\\.");
+
+ for (int d = 3; d >= 0; d--) {
+ retval[d] = (byte) (Short.parseShort(dots[3 - d]) & 0xff);
+ }
+ return retval;
+ }
+
+ /**
+ * Return (interned) string from byte array while removing \u0000.
+ * Strings represented as fixed length byte[] from vpp contain \u0000.
+ */
+ public static String toString(final byte[] cString) {
+ return new String(cString).replaceAll("\\u0000", "").intern();
+ }
+
+ /**
+ * Parse string represented mac address (using ":" as separator) into a byte array
+ */
+ @Nonnull
+ public static byte[] parseMac(@Nonnull final String macAddress) {
+ final List<String> parts = COLON_SPLITTER.splitToList(macAddress);
+ checkArgument(parts.size() == 6, "Mac address is expected to have 6 parts but was: %s", macAddress);
+ return parseMacLikeString(parts);
+ }
+
+ private static byte[] parseMacLikeString(final List<String> strings) {
+ return strings.stream().limit(6).map(TranslateUtils::parseHexByte).collect(
+ () -> new byte[strings.size()],
+ new BiConsumer<byte[], Byte>() {
+
+ private int i = -1;
+
+ @Override
+ public void accept(final byte[] bytes, final Byte aByte) {
+ bytes[++i] = aByte;
+ }
+ },
+ (bytes, bytes2) -> {
+ throw new UnsupportedOperationException("Parallel collect not supported");
+ });
+ }
+
+ private static byte parseHexByte(final String aByte) {
+ return (byte)Integer.parseInt(aByte, 16);
+ }
+
+ /**
+ * Returns 0 if argument is null or false, 1 otherwise.
+ * @param value Boolean value to be converted
+ * @return byte value equal to 0 or 1
+ */
+ public static byte booleanToByte(@Nullable final Boolean value) {
+ return value != null && value ? (byte) 1 : (byte) 0;
+ }
+}