ca.travelagency.salesstats.MonthlyDistribution.java Source code

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Here is the source code for ca.travelagency.salesstats.MonthlyDistribution.java

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/**
 *    Copyright (C) 2010 - 2014 VREM Software Development <VREMSoftwareDevelopment@gmail.com>
 *
 *    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.
 */
package ca.travelagency.salesstats;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

import org.apache.commons.lang3.Validate;
import org.apache.commons.lang3.builder.CompareToBuilder;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;

import ca.travelagency.invoice.Invoice;
import ca.travelagency.invoice.SalesAmounts;
import ca.travelagency.utils.DateUtils;

public class MonthlyDistribution implements Serializable, Comparable<MonthlyDistribution> {
    private static final long serialVersionUID = 1L;

    public static MonthlyDistribution make(Date date) {
        MonthlyDistribution result = new MonthlyDistribution();
        Validate.notNull(date);
        result.date = DateUtils.truncate(date, Calendar.MONTH);
        return result;

    }

    public enum Properties {
        dateAsString, count, salesAmounts
    }

    private Date date;
    private List<Invoice> invoices = new ArrayList<Invoice>();

    public Date getDate() {
        return date;
    }

    public String getDateAsString() {
        return DateUtils.formatDateAsMonth(date);
    }

    public long getCount() {
        return getInvoices().size();
    }

    public List<Invoice> getInvoices() {
        return invoices;
    }

    public void add(Invoice invoice) {
        Validate.notNull(invoice);
        this.invoices.add(invoice);
    }

    public SalesAmounts getSalesAmounts() {
        SalesAmounts salesAmounts = SalesAmounts.make();
        for (Invoice invoice : getInvoices()) {
            salesAmounts.add(invoice.getSalesAmounts());
        }
        return salesAmounts;
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder().append(getDate()).toHashCode();
    }

    @Override
    public boolean equals(Object object) {
        if (this == object) {
            return true;
        }
        if (!(object instanceof MonthlyDistribution)) {
            return false;
        }
        MonthlyDistribution monthlyDistribution = (MonthlyDistribution) object;
        return new EqualsBuilder().append(getDate(), monthlyDistribution.getDate()).isEquals();
    }

    @Override
    public String toString() {
        return ToStringBuilder.reflectionToString(this);
    }

    @Override
    public int compareTo(MonthlyDistribution other) {
        return new CompareToBuilder().append(other.getDate(), getDate()).toComparison();
    }
}