package com.fasterxml.jackson.databind.ser.std;
import java.io.*;
import java.nio.ByteBuffer;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.util.ByteBufferBackedInputStream;
public class ByteBufferSerializer extends StdScalarSerializer<ByteBuffer>
{
public final static ByteBufferSerializer instance = new ByteBufferSerializer();
public ByteBufferSerializer() { super(ByteBuffer.class); }
@Override
public void serialize(ByteBuffer bbuf, JsonGenerator gen, SerializerProvider provider)
throws IOException, JsonGenerationException
{
// first, simple case when wrapping an array...
if (bbuf.hasArray()) {
gen.writeBinary(bbuf.array(), 0, bbuf.limit());
return;
}
// the other case is more complicated however. Best to handle with InputStream wrapper.
// But should we rewind it; and/or make a copy?
ByteBuffer copy = bbuf.asReadOnlyBuffer();
if (copy.position() > 0) {
copy.rewind();
}
InputStream in = new ByteBufferBackedInputStream(copy);
gen.writeBinary(in, copy.remaining());
in.close();
}
}