com.groupbyinc.common.jackson.jq.internal.functions.HasFunction 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;
import com.fasterxml.jackson.databind.node.BooleanNode;
@BuiltinFunction("has/1")
public class HasFunction implements Function {
@Override
public List apply(final Scope scope, final List args, final JsonNode in) throws JsonQueryException {
final List out = new ArrayList<>();
for (final JsonNode keyName : args.get(0).apply(scope, in)) {
if (in.isObject()) {
if (!keyName.isTextual())
throw new JsonQueryException("argument 1 of has() must be string for object input");
out.add((JsonNode) BooleanNode.valueOf(in.has(keyName.asText())));
} else if (in.isArray()) {
if (!keyName.isIntegralNumber())
throw new JsonQueryException("argument 1 of has() must be int for array input");
out.add((JsonNode) BooleanNode.valueOf(in.has(keyName.asInt())));
} else {
throw new JsonQueryException("has() is not applicable to " + in.getNodeType());
}
}
return out;
}
}