Restructured model to use enums for status type of Services, Resources and ServiceOrders

package org.etsi.osl.tmf.metrics;

public class Resources extends Services{

import com.fasterxml.jackson.annotation.JsonProperty;

    public Resources(int total, GroupByStateAggregations aggregations) {

        super(total, aggregations);

public class Resources{

    @JsonProperty("total")

    private final int total;

    @JsonProperty("aggregations")

    private final ResourcesGroupByStateAggregations aggregations;

    public Resources(int total, ResourcesGroupByStateAggregations aggregations) {

        this.total = total;

        this.aggregations = aggregations;

    }

    public int getTotal() {

        return total;

    }

    public ResourcesGroupByStateAggregations getAggregations() {

        return aggregations;

    }

}

        this.resources = resources;

    }

    public Services getResources() {

    public Resources getResources() {

        return resources;

    }

}

package org.etsi.osl.tmf.metrics;

import com.fasterxml.jackson.annotation.JsonProperty;

import java.util.List;

public class ResourcesGroupByStateAggregations {

    @JsonProperty("groupByState")

    private final List<ResourcesGroupByStateItem> groupByState;

    public ResourcesGroupByStateAggregations(List<ResourcesGroupByStateItem> groupByState) {

        this.groupByState = groupByState;

    }

    public List<ResourcesGroupByStateItem> getGroupByState() {

        return groupByState;

    }

}

package org.etsi.osl.tmf.metrics;

import com.fasterxml.jackson.annotation.JsonProperty;

import org.etsi.osl.tmf.common.model.service.ServiceStateType;

import org.etsi.osl.tmf.ri639.model.ResourceStatusType;

public class ResourcesGroupByStateItem {

    @JsonProperty("key")

    private final ResourceStatusType key;

    @JsonProperty("count")

    private final int count;

    public ResourcesGroupByStateItem(ResourceStatusType key, int count) {

        this.key = key;

        this.count = count;

    }

    public String getKey() {

        return key.name();

    }

    public int getCount() {

        return count;

    }

}

package org.etsi.osl.tmf.metrics;

public class ServiceOrders extends Services{

    public ServiceOrders(int total, GroupByStateAggregations aggregations) {

        super(total, aggregations);

    }

}