54 lines
1.4 KiB
Java
54 lines
1.4 KiB
Java
package it.cavallium.dbengine.database.collections;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.ByteBufAllocator;
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import it.cavallium.dbengine.database.serialization.Serializer;
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import it.unimi.dsi.fastutil.objects.ObjectArraySet;
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import java.util.Set;
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import org.jetbrains.annotations.NotNull;
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class ValuesSetSerializer<X> implements Serializer<Set<X>, ByteBuf> {
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private final ByteBufAllocator allocator;
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private final Serializer<X, ByteBuf> entrySerializer;
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ValuesSetSerializer(ByteBufAllocator allocator, Serializer<X, ByteBuf> entrySerializer) {
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this.allocator = allocator;
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this.entrySerializer = entrySerializer;
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}
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@Override
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public @NotNull Set<X> deserialize(@NotNull ByteBuf serialized) {
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try {
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int entriesLength = serialized.readInt();
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Object[] values = new Object[entriesLength];
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for (int i = 0; i < entriesLength; i++) {
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X entry = entrySerializer.deserialize(serialized.retain());
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values[i] = entry;
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}
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return new ObjectArraySet<>(values);
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} finally {
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serialized.release();
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}
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}
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@Override
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public @NotNull ByteBuf serialize(@NotNull Set<X> deserialized) {
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ByteBuf output = allocator.buffer();
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try {
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output.writeInt(deserialized.size());
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deserialized.forEach((entry) -> {
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ByteBuf serialized = entrySerializer.serialize(entry);
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try {
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output.writeBytes(serialized);
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} finally {
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serialized.release();
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}
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});
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return output.retain();
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} finally {
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output.release();
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}
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}
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}
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