com.hpe.caf.autoscale.json.JsonPathQueryAssistance Maven / Gradle / Ivy
/*
* Copyright 2015-2018 Micro Focus or one of its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hpe.caf.autoscale.json;
import com.hpe.caf.autoscale.endpoint.docker.DockerSwarmService;
import java.security.InvalidParameterException;
import java.util.LinkedList;
import java.util.Objects;
/**
* Group common and useful JsonPath query methods together here.
*/
public class JsonPathQueryAssistance
{
/**
*
* @param serviceItem
* @param requiredItem = 1 is first item, do not confuse this with index of item.
* @param jsonQuery
* @return
* @throws Exception
*/
public static String queryForValueAsString(DockerSwarmService serviceItem, final int requiredItem,
final String jsonQuery) throws Exception
{
if (requiredItem < 1) {
throw new InvalidParameterException("Required item is a 1 based index. First item = 1.");
}
// now get the requestedString information
LinkedList