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/*
* 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.utils;
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 V3poUtils {
// TODO move to vpp-translate-utils
public static final Splitter COLON_SPLITTER = Splitter.on(':');
private V3poUtils() {}
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(V3poUtils::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;
}
}
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