net.thisptr.jackson.jq.internal.functions.RecurseFunction Maven / Gradle / Ivy
package net.thisptr.jackson.jq.internal.functions;
import java.util.ArrayList;
import java.util.List;
import net.thisptr.jackson.jq.Function;
import net.thisptr.jackson.jq.JsonQuery;
import net.thisptr.jackson.jq.Scope;
import net.thisptr.jackson.jq.exception.JsonQueryException;
import net.thisptr.jackson.jq.internal.BuiltinFunction;
import com.fasterxml.jackson.databind.JsonNode;
@BuiltinFunction("recurse/1")
public class RecurseFunction implements Function {
@Override
public List apply(final Scope scope, final List args, final JsonNode in) throws JsonQueryException {
final List out = new ArrayList<>();
recurse(scope, in, args.get(0), out);
return out;
}
private static void recurse(final Scope scope, final JsonNode in, final JsonQuery path, final List out) throws JsonQueryException {
out.add(in);
for (final JsonNode child : path.apply(scope, in))
recurse(scope, child, path, out);
}
}