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/*-
 * ============LICENSE_START=======================================================
 * PolicyEngineClient
 * ================================================================================
 * Copyright (C) 2017, 2019 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.onap.policyengine;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

import org.onap.policy.api.AttributeType;
import org.onap.policy.api.PolicyChangeResponse;
import org.onap.policy.api.PolicyConfigType;
import org.onap.policy.api.PolicyEngine;
import org.onap.policy.api.PolicyParameters;
import org.onap.policy.api.PolicyType;

public class BrmsRawPolicyClient {
    static Boolean isEdit = true;

    // Reads a File and converts into a String.
    private static String readFile(String file) throws IOException {

        String line = null;
        StringBuilder stringBuilder = new StringBuilder();
        String ls = System.getProperty("line.separator");

        try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line);
                stringBuilder.append(ls);
            }
            return stringBuilder.toString();
        }
    }

    /**
     * main.
     *
     * @param args String[] of arguments
     */
    public static void main(String[] args) {
        try {
            PolicyEngine policyEngine = new PolicyEngine("config.properties");
            Map<String, String> attrib = new HashMap<>();
            attrib.put("cpu", "80");
            attrib.put("memory", "50");
            Map<AttributeType, Map<String, String>> attributes = new HashMap<>();
            attributes.put(AttributeType.RULE, attrib);

            PolicyParameters policyParameters = new PolicyParameters();
            // Set Policy Type
            policyParameters.setPolicyConfigType(PolicyConfigType.BRMS_RAW); // required
            policyParameters.setPolicyName("Lakshman.testBRMSRawAPITwo"); // required
            policyParameters.setPolicyDescription("This is a sample BRMS Raw policy body"); // optional
            policyParameters.setAttributes(attributes);
            // policyParameters.setPolicyScope("Lakshman"); //Directory will be created where the Policies are saved...
            // this displays a a subscope on the GUI
            policyParameters.setRequestID(UUID.randomUUID());

            // Set Safe Policy value for Risk Type
            SimpleDateFormat dateformat3 = new SimpleDateFormat("dd/MM/yyyy");
            Date date = dateformat3.parse("15/10/2016");
            policyParameters.setTtlDate(date);
            // Set Safe Policy value for Guard
            policyParameters.setGuard(true);
            // Set Safe Policy value for Risk Level
            policyParameters.setRiskLevel("5");
            // Set Safe Policy value for Risk Type
            policyParameters.setRiskType("PROD");

            File rawBodyFile = null;

            Path file = Paths.get("C:\\Users\\testuser\\Documents\\API\\com.Config_BRMS_Raw_TestBrmsPolicy.1.txt");
            rawBodyFile = file.toFile();

            policyParameters.setConfigBody(readFile(rawBodyFile.toString()));
            policyParameters.setConfigBodyType(PolicyType.OTHER);

            // API method to create Policy or update policy
            PolicyChangeResponse response = null;
            if (!isEdit) {
                response = policyEngine.createPolicy(policyParameters);
            } else {
                response = policyEngine.updatePolicy(policyParameters);
            }

            if (response.getResponseCode() == 200) {
                System.out.println(response.getResponseMessage());
                System.out.println("Policy Created Successfully!");
            } else {
                System.out.println("Error! " + response.getResponseMessage());
            }
        } catch (Exception e) {
            System.err.println(e.getMessage());
        }
    }

}