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/*-
 * ============LICENSE_START=======================================================
 * ONAP : APP-C
 * ================================================================================
 * Copyright (C) 2017 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.openecomp.sdnc.config.audit.node;


import java.util.HashMap;
import java.util.Map;


import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;

public class CompareNode implements SvcLogicJavaPlugin
{

    private static final EELFLogger log = EELFManager.getInstance().getLogger(CompareNode.class);

    public void compare( Map<String, String> inParams, SvcLogicContext ctx) throws SvcLogicException
    {
        log.debug("Starting Compare Node Analysis");

        HashMap<String, String> status = new HashMap<String, String>();
        Parameters params = new Parameters(inParams);
        try
        {
            if(params.getCompareDataType() != null)
            {
                if(params.getPayloadX() !=null && params.getPayloadY() !=null)
                {
                    status = getCompareResults(params);
                    log.debug("Compare Result : " + status);
                }
                else
                {
                    status.put(CompareConstants.RESPONSE_STATUS, CompareConstants.STATUS_FAILURE);
                    status.put(CompareConstants.ERROR_CODE, "200");
                    status.put(CompareConstants.ERROR_MESSAGE, "One of the Data Received by CompareNode is Empty");
                }
            }
            else
            {
                status.put(CompareConstants.RESPONSE_STATUS, CompareConstants.STATUS_FAILURE);
                status.put(CompareConstants.ERROR_CODE, "200");
                status.put(CompareConstants.ERROR_MESSAGE, "Missing compareDataType value in input request: Expecting at least one of  CLI/RESTCONF/XML");
            }

        }
        catch(Exception e)
        {
            status.put(CompareConstants.RESPONSE_STATUS, CompareConstants.STATUS_FAILURE);
            status.put(CompareConstants.ERROR_CODE, "200");
            status.put(CompareConstants.ERROR_MESSAGE, CompareConstants.ERROR_MESSAGE_DEATIL);
            log.debug("Error in Comapre Node Execution " + e.getMessage());

        }

        createContextReposne(status, ctx, params.getRequestIdentifier());
    }

    private HashMap<String, String> getCompareResults(Parameters params) throws Exception
    {
        HashMap<String, String> resultMap = new HashMap<String, String>();
        boolean cmpResult = false;
        CompareDataInterface handler;



        if(params.getCompareDataType().equalsIgnoreCase(CompareConstants.FORMAT_JSON))
            handler =  new CompareJsonData(params.getPayloadX(), params.getPayloadY());
        else if((params.getCompareDataType().equalsIgnoreCase(CompareConstants.FORMAT_XML))
                || (params.getCompareDataType().equalsIgnoreCase(CompareConstants.NETCONF_XML))
                        || (params.getCompareDataType().equalsIgnoreCase(CompareConstants.RESTCONF_XML)))
            handler =  new CompareXmlData(params.getPayloadX(), params.getPayloadY());
        else if (params.getCompareDataType().equalsIgnoreCase(CompareConstants.FORMAT_CLI))
            handler =  new CompareCliData(params.getPayloadX(), params.getPayloadY());
        else
        {
            throw new Exception("Format " + params.getCompareDataType() + " not supported");
        }
        try
        {
            log.debug("Received Format to compare : " + params.getCompareDataType());

            cmpResult = handler.compare();
            if(cmpResult)
            {
                resultMap.put(CompareConstants.RESPONSE_STATUS, CompareConstants.STATUS_SUCCESS);

            }
            else
            {
                resultMap.put(CompareConstants.RESPONSE_STATUS, CompareConstants.STATUS_FAILURE);
                resultMap.put(CompareConstants.ERROR_CODE, "500");
                resultMap.put(CompareConstants.ERROR_MESSAGE, CompareConstants.NO_MATCH_MESSAGE);
            }
        }
        catch (Exception e)
        {
            throw e;
        }

    return resultMap;
    }

    private void createContextReposne(HashMap status, SvcLogicContext ctx, String requestIdentifier )
    {
        if(requestIdentifier == null)
            requestIdentifier = "";
        else
            requestIdentifier = requestIdentifier + ".";

        ctx.setAttribute(requestIdentifier.concat( CompareConstants.RESPONSE_STATUS), (String) status.get(CompareConstants.RESPONSE_STATUS));
        ctx.setAttribute(requestIdentifier.concat(CompareConstants.ERROR_CODE), (String) status.get(CompareConstants.ERROR_CODE));
        ctx.setAttribute(requestIdentifier.concat(CompareConstants.ERROR_MESSAGE), (String) status.get(CompareConstants.ERROR_MESSAGE));
    }

}