com.fasterxml.jackson.databind.deser.std.ByteBufferDeserializer Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package com.fasterxml.jackson.databind.deser.std;

import java.io.*;
import java.nio.ByteBuffer;

import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.type.LogicalType;
import com.fasterxml.jackson.databind.util.ByteBufferBackedOutputStream;

public class ByteBufferDeserializer extends StdScalarDeserializer
{
    private static final long serialVersionUID = 1L;
    
    protected ByteBufferDeserializer() { super(ByteBuffer.class); }

    @Override // since 2.12
    public LogicalType logicalType() {
        return LogicalType.Binary;
    }

    @Override
    public ByteBuffer deserialize(JsonParser parser, DeserializationContext cx) throws IOException {
        byte[] b = parser.getBinaryValue();
        return ByteBuffer.wrap(b);
    }

    @Override
    public ByteBuffer deserialize(JsonParser jp, DeserializationContext ctxt, ByteBuffer intoValue) throws IOException {
        // Let's actually read in streaming manner...
        OutputStream out = new ByteBufferBackedOutputStream(intoValue);
        jp.readBinaryValue(ctxt.getBase64Variant(), out);
        out.close();
        return intoValue;
    }
}