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Provides common DTOs for Teamscale

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package org.conqat.engine.commons.util;

import java.io.IOException;
import java.util.List;
import java.util.stream.Collectors;

import org.conqat.lib.commons.collections.CompactLines;
import org.conqat.lib.commons.string.LineRange;
import org.conqat.lib.commons.string.LineRangeStringParser;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;

/**
 * Custom Serializer to serialize {@link CompactLines} to string separated line ranges. See
 * {@link LineRangeStringParser} for more details.
 */
public class LineRangeSerializer extends StdSerializer {

	private static final long serialVersionUID = -9191867553019031697L;

	public LineRangeSerializer() {
		this(null);
	}

	private LineRangeSerializer(Class t) {
		super(t);
	}

	@Override
	public void serialize(CompactLines value, JsonGenerator jsonGen, SerializerProvider provider) throws IOException {
		List compactLineRanges = LineRangeStringParser.compactifyToRanges(value);
		String concatenatedCompactLineRanges = compactLineRanges.stream().map(Object::toString)
				.collect(Collectors.joining(","));
		jsonGen.writeString(concatenatedCompactLineRanges);
	}
}