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Wix Restaurants Availability API

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package com.wix.restaurants.availability;

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;

import java.io.Serializable;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

/**
 * A time availability schedule.
 * Supports regular weekly periods and specific date exceptions.
 */
@JsonIgnoreProperties(ignoreUnknown = true)
public class Availability implements Serializable, Cloneable {
	private static final long serialVersionUID = 1L;
    
	public Availability(List weekly, List exceptions) {
        this.weekly = weekly;
        this.exceptions = exceptions;
    }
    
    /** Default constructor for JSON deserialization. */
    public Availability() {}
    
    @Override
	public Object clone() {
		return new Availability(WeeklyTimeWindow.clone(weekly), DateTimeWindow.clone(exceptions));
	}

	public static Map clone(Map availabilities) {
		if (availabilities == null) {
			return null;
		}

		final Map cloned = new LinkedHashMap<>(availabilities.size());
		for (Entry entry : availabilities.entrySet()) {
			cloned.put(entry.getKey(), ((entry.getValue() != null) ? (Availability) entry.getValue().clone() : null));
		}
		return cloned;
	}
    
    /** Weekly availability times. */
    @JsonInclude(Include.NON_DEFAULT)
    public List weekly = Collections.emptyList();
    
    /** Availability exceptions. */
    @JsonInclude(Include.NON_DEFAULT)
    public List exceptions = Collections.emptyList();
    
    @Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result
				+ ((exceptions == null) ? 0 : exceptions.hashCode());
		result = prime * result + ((weekly == null) ? 0 : weekly.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Availability other = (Availability) obj;
		if (exceptions == null) {
			if (other.exceptions != null)
				return false;
		} else if (!exceptions.equals(other.exceptions))
			return false;
		if (weekly == null) {
			if (other.weekly != null)
				return false;
		} else if (!weekly.equals(other.weekly))
			return false;
		return true;
	}
}