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 * or more contributor license agreements.  See the NOTICE file *
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 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
 * "License"); you may not use this file except in compliance   *
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package org.apache.james.mailbox.model;

import java.io.Serializable;
import java.util.Objects;
import java.util.Optional;

import org.apache.james.core.quota.QuotaValue;

import com.google.common.base.MoreObjects;

public class SerializableQuota> implements Serializable {

    public static final long UNLIMITED = -1;

    public static > SerializableQuota newInstance(Quota quota) {
        return newInstance(quota.getUsed(), quota.getLimit());
    }

    public static > SerializableQuota newInstance(U used, U max) {
        return new SerializableQuota<>(
            new SerializableQuotaValue<>(used),
            new SerializableQuotaValue<>(max)
        );
    }

    private final SerializableQuotaValue max;
    private final SerializableQuotaValue used;

    private SerializableQuota(SerializableQuotaValue used, SerializableQuotaValue max) {
        this.max = max;
        this.used = used;
    }

    public Long encodeAsLong() {
        return max.encodeAsLong();
    }

    public Long getUsed() {
        return Optional.ofNullable(used).map(SerializableQuotaValue::encodeAsLong).orElse(null);
    }

    @Override
    public boolean equals(Object o) {
        if (o instanceof SerializableQuota) {
            SerializableQuota that = (SerializableQuota) o;
            return Objects.equals(max, that.max) &&
                Objects.equals(used, that.used);
        }
        return false;
    }

    @Override
    public int hashCode() {
        return Objects.hash(max, used);
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
            .add("max", max)
            .add("used", used)
            .toString();
    }
}