/*
 * ============LICENSE_START========================================================================
 * ONAP : ccsdk feature sdnr wt
 * =================================================================================================
 * Copyright (C) 2019 highstreet technologies GmbH 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.ccsdk.features.sdnr.wt.devicemanager.onf.ifpac.equipment;

import java.util.HashMap;
import java.util.List;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.opendaylight.yang.gen.v1.urn.onf.params.xml.ns.yang.core.model.rev170320.UniversalId;
import org.opendaylight.yang.gen.v1.urn.onf.params.xml.ns.yang.core.model.rev170320.extension.g.Extension;

/**
 * ValueNameList is an access Wrapper to NETCONF Extension lists
 * Class is a specialized HashMap.
 */
public class ValueNameList extends HashMap<String, String> {

    private static final long serialVersionUID = 1L;

    /**
     * Create ValueNameList for NETCONF extensions
     * @param extensionList Parameters as received from device. Could be null.
     */
    public void put(@Nullable List<Extension> extensionList) {

        if (extensionList != null) {
            String name;
            String value;

            for (Extension e : extensionList) {
                name = e.getValueName();
                value = e.getValue();
                if (name != null && value != null) {
                    put(name, value);
                }
            }
        }
    }

    /**
     * Return value or null
     * @param name key for element
     * @return value if key exists; if not nul
     */
    public String getOrNull(String name) {
        return containsKey(name) ? get(name) : null;
    }

    /**
     * Get element as id list
     * @param name key of element
     * @param topLevelEqUuidList as input to add elements
     * @return List<UniversalId>
     */
    public  @NonNull List<UniversalId> getAsUniversalIdList(String name, List<UniversalId> topLevelEqUuidList) {
        if (containsKey(name)) {
            String[] result = get(name).split(",\\s*");
            if (result.length > 0) {
                for (String e : result) {
                    topLevelEqUuidList.add(new UniversalId(e));
                }
            }
        }
        return topLevelEqUuidList;
    }

}