/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.tinkerpop.gremlin.structure.io.gryo;
import org.apache.tinkerpop.gremlin.structure.io.gryo.kryoshim.InputShim;
import org.apache.tinkerpop.gremlin.structure.io.gryo.kryoshim.KryoShim;
import org.apache.tinkerpop.gremlin.structure.io.gryo.kryoshim.OutputShim;
import org.apache.tinkerpop.gremlin.structure.io.gryo.kryoshim.SerializerShim;
import org.apache.tinkerpop.gremlin.util.function.HashSetSupplier;
import org.apache.tinkerpop.shaded.kryo.Kryo;
import org.apache.tinkerpop.shaded.kryo.Serializer;
import org.apache.tinkerpop.shaded.kryo.io.Input;
import org.apache.tinkerpop.shaded.kryo.io.Output;
import org.javatuples.Pair;
import java.net.InetAddress;
import java.net.URI;
import java.nio.ByteBuffer;
import java.util.AbstractMap;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.UUID;
/**
* @author Stephen Mallette (http://stephen.genoprime.com)
* @author Daniel Kuppitz (http://gremlin.guru)
*/
final class UtilSerializers {
private UtilSerializers() {
}
/**
* Serializer for {@code List} instances produced by {@code Arrays.asList()}.
*/
public final static class ArraysAsListSerializer implements SerializerShim<List> {
@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final List list) {
final List l = new ArrayList(list);
kryo.writeObject(output, l);
}
@Override
public <I extends InputShim> List read(final KryoShim<I, ?> kryo, final I input, final Class<List> clazz) {
return kryo.readObject(input, ArrayList.class);
}
}
public final static class ByteBufferSerializer implements SerializerShim<ByteBuffer> {
@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final ByteBuffer bb) {
final byte[] b = bb.array();
final int arrayOffset = bb.arrayOffset();
Arrays.copyOfRange(b, arrayOffset + bb.position(), arrayOffset + bb.limit());
output.writeInt(b.length);
output.writeBytes(b, 0, b.length);
}
@Override
public <I extends InputShim> ByteBuffer read(final KryoShim<I, ?> kryo, final I input, final Class<ByteBuffer> clazz) {
final int len = input.readInt();
final byte[] b = input.readBytes(len);
final ByteBuffer bb = ByteBuffer.allocate(len);
bb.put(b);
return bb;
}
}
public final static class ClassSerializer implements SerializerShim<Class> {
@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Class object) {
output.writeString(object.getName());
}
@Override
public <I extends InputShim> Class read(final KryoShim<I, ?> kryo, final I input, final Class<Class> clazz) {
final String name = input.readString();
try {
return Class.forName(name);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
}
public final static class ClassArraySerializer implements SerializerShim<Class[]> {
@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Class[] object) {
output.writeInt(object.length);
for (final Class clazz : object) {
output.writeString(clazz.getName());
}
}
@Override
public <I extends InputShim> Class[] read(final KryoShim<I, ?> kryo, final I input, final Class<Class[]> clazz) {
final int size = input.readInt();
final Class[] clazzes = new Class[size];
for (int i = 0; i < size; i++) {
try {
clazzes[i] = Class.forName(input.readString());
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
return clazzes;
}
}
public final static class InetAddressSerializer implements SerializerShim<InetAddress> {
@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final InetAddress addy) {
final String str = addy.toString().trim();
final int slash = str.indexOf('/');
if (slash >= 0) {
if (slash == 0) {
output.writeString(str.substring(1));
} else {
output.writeString(str.substring(0, slash));
}
}
}
@Override
public <I extends InputShim> InetAddress read(final KryoShim<I, ?> kryo, final I input, final Class<InetAddress> clazz) {
try {
return InetAddress.getByName(input.readString());
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
}
public final static class HashSetSupplierSerializer implements SerializerShim<HashSetSupplier> {
@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final HashSetSupplier hashSetSupplier) {
}
@Override
public <I extends InputShim> HashSetSupplier read(final KryoShim<I, ?> kryo, final I input, final Class<HashSetSupplier> clazz) {
return HashSetSupplier.instance();
}
}
static final class UUIDSerializer implements SerializerShim<UUID> {
public UUIDSerializer() {
}
@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final UUID uuid) {
output.writeLong(uuid.getMostSignificantBits());
output.writeLong(uuid.getLeastSignificantBits());
}
@Override
public <I extends InputShim> UUID read(final KryoShim<I, ?> kryo, final I input, final Class<UUID> uuidClass) {
return new UUID(input.readLong(), input.readLong());
}
@Override
public boolean isImmutable() {
return true;
}
}
static final class URISerializer implements SerializerShim<URI> {
public URISerializer() {
}
@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final URI uri) {
output.writeString(uri.toString());
}
@Override
public <I extends InputShim> URI read(final KryoShim<I, ?> kryo, final I input, final Class<URI> uriClass) {
return URI.create(input.readString());
}
@Override
public boolean isImmutable() {
return true;
}
}
static final class PairSerializer implements SerializerShim<Pair> {
@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Pair pair) {
kryo.writeClassAndObject(output, pair.getValue0());
kryo.writeClassAndObject(output, pair.getValue1());
}
@Override
public <I extends InputShim> Pair read(final KryoShim<I, ?> kryo, final I input, final Class<Pair> pairClass) {
return Pair.with(kryo.readClassAndObject(input), kryo.readClassAndObject(input));
}
}
static final class EntrySerializer extends Serializer<Map.Entry> {
@Override
public void write(final Kryo kryo, final Output output, final Map.Entry entry) {
kryo.writeClassAndObject(output, entry.getKey());
kryo.writeClassAndObject(output, entry.getValue());
}
@Override
public Map.Entry read(final Kryo kryo, final Input input, final Class<Map.Entry> entryClass) {
return new AbstractMap.SimpleEntry(kryo.readClassAndObject(input), kryo.readClassAndObject(input));
}
}
}