Custom Differ for java-object-diff to add "equals-only" byte array support

README.md

To enable it, simply add it to the ObjectDifferBuilder like so:

ObjectDiffer objectDiffer = ObjectDifferBuilder.startBuilding()
  .differs().register(new ByteArrayDiffer.Factory())
  .build()

This will get rid of the Couldn't find a differ for type: [B message and instead provide simple support for byte arrays by just using Arrays.equals instead of doing a deep comparison.

ByteArrayDiffer.java

import de.danielbechler.diff.NodeQueryService;
import de.danielbechler.diff.access.Instances;
import de.danielbechler.diff.differ.Differ;
import de.danielbechler.diff.differ.DifferDispatcher;
import de.danielbechler.diff.differ.DifferFactory;
import de.danielbechler.diff.node.DiffNode;

import java.util.Arrays;

public class ByteArrayDiffer implements Differ
{
	public boolean accepts(final Class<?> type)
	{
		return type == byte[].class;
	}

	public DiffNode compare(final DiffNode parentNode, final Instances instances)
	{
		final DiffNode node = new DiffNode(parentNode, instances.getSourceAccessor());
		if (instances.hasBeenAdded())
		{
			node.setState(DiffNode.State.ADDED);
		}
		else if (instances.hasBeenRemoved())
		{
			node.setState(DiffNode.State.REMOVED);
		}
		else
		{
			final byte[] baseValue = instances.getBase(byte[].class);
			final byte[] workingValue = instances.getWorking(byte[].class);
			if (!Arrays.equals(baseValue, workingValue))
			{
				node.setState(DiffNode.State.CHANGED);
			}
		}
		return node;
	}

	public static class Factory implements DifferFactory
	{
		public Differ createDiffer(final DifferDispatcher differDispatcher,
					   final NodeQueryService nodeQueryService)
		{
			return new ByteArrayDiffer();
		}
	}
}

In which class exactly should I add this?

ObjectDiffer objectDiffer = ObjectDifferBuilder.startBuilding()
.differs().register(new ByteArrayDiffer.Factory())
.build()