package com.jayway.jsonpath.internal.function.json;

import com.jayway.jsonpath.internal.EvaluationContext;
import com.jayway.jsonpath.internal.PathRef;
import com.jayway.jsonpath.internal.function.Parameter;
import com.jayway.jsonpath.internal.function.PathFunction;
import com.jayway.jsonpath.spi.json.JsonProvider;

import java.util.List;

Appends JSON structure to the current document so that you can utilize the JSON added thru another function call.
If there are multiple parameters then this function call will add each element that is json to the structure
Created by mgreenwood on 12/14/15.
/**
 * Appends JSON structure to the current document so that you can utilize the JSON added thru another function call.
 * If there are multiple parameters then this function call will add each element that is json to the structure
 *
 * Created by mgreenwood on 12/14/15.
 */
public class Append implements PathFunction {
    @Override
    public Object invoke(String currentPath, PathRef parent, Object model, EvaluationContext ctx, List<Parameter> parameters) {
        JsonProvider jsonProvider = ctx.configuration().jsonProvider();
        if (parameters != null && parameters.size() > 0) {
            for (Parameter param : parameters) {
                if (jsonProvider.isArray(model)) {
                    int len = jsonProvider.length(model);
                    jsonProvider.setArrayIndex(model, len, param.getValue());
                }
            }
        }
        return model;
    }
}