Holiday.java example

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/**
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 */
package org.mifosplatform.organisation.holiday.domain;

import static org.mifosplatform.organisation.holiday.api.HolidayApiConstants.descriptionParamName;
import static org.mifosplatform.organisation.holiday.api.HolidayApiConstants.fromDateParamName;
import static org.mifosplatform.organisation.holiday.api.HolidayApiConstants.nameParamName;
import static org.mifosplatform.organisation.holiday.api.HolidayApiConstants.officesParamName;
import static org.mifosplatform.organisation.holiday.api.HolidayApiConstants.repaymentsRescheduledToParamName;
import static org.mifosplatform.organisation.holiday.api.HolidayApiConstants.toDateParamName;
import static org.mifosplatform.portfolio.savings.SavingsApiConstants.dateFormatParamName;
import static org.mifosplatform.portfolio.savings.SavingsApiConstants.localeParamName;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.UniqueConstraint;

import org.apache.commons.lang.StringUtils;
import org.joda.time.LocalDate;
import org.mifosplatform.infrastructure.core.api.JsonCommand;
import org.mifosplatform.infrastructure.core.data.ApiParameterError;
import org.mifosplatform.infrastructure.core.data.DataValidatorBuilder;
import org.mifosplatform.infrastructure.core.exception.PlatformApiDataValidationException;
import org.mifosplatform.organisation.holiday.api.HolidayApiConstants;
import org.mifosplatform.organisation.office.domain.Office;
import org.springframework.data.jpa.domain.AbstractPersistable;

import com.google.gson.JsonArray;

@Entity
@Table(name = "m_holiday", uniqueConstraints = { @UniqueConstraint(columnNames = { "name" }, name = "holiday_name") })
public class Holiday extends AbstractPersistable<Long> {

    @Column(name = "name", unique = true, nullable = false, length = 100)
    private String name;

    @Column(name = "from_date", nullable = false)
    @Temporal(TemporalType.DATE)
    private Date fromDate;

    @Column(name = "to_date", nullable = false)
    @Temporal(TemporalType.DATE)
    private Date toDate;

    @Column(name = "repayments_rescheduled_to", nullable = false)
    @Temporal(TemporalType.DATE)
    private Date repaymentsRescheduledTo;

    @Column(name = "status_enum", nullable = false)
    private Integer status;

    @Column(name = "processed", nullable = false)
    private boolean processed;

    @Column(name = "description", length = 100)
    private String description;

    @ManyToMany(fetch = FetchType.EAGER)
    @JoinTable(name = "m_holiday_office", joinColumns = @JoinColumn(name = "holiday_id"), inverseJoinColumns = @JoinColumn(name = "office_id"))
    private Set<Office> offices;

    public static Holiday createNew(final Set<Office> offices, final JsonCommand command) {
        final String name = command.stringValueOfParameterNamed(HolidayApiConstants.nameParamName);
        final LocalDate fromDate = command.localDateValueOfParameterNamed(HolidayApiConstants.fromDateParamName);
        final LocalDate toDate = command.localDateValueOfParameterNamed(HolidayApiConstants.toDateParamName);
        final LocalDate repaymentsRescheduledTo = command
                .localDateValueOfParameterNamed(HolidayApiConstants.repaymentsRescheduledToParamName);
        final Integer status = HolidayStatusType.PENDING_FOR_ACTIVATION.getValue();
        final boolean processed = false;// default it to false. Only batch job
                                        // should update this field.
        final String description = command.stringValueOfParameterNamed(HolidayApiConstants.descriptionParamName);
        return new Holiday(name, fromDate, toDate, repaymentsRescheduledTo, status, processed, description, offices);
    }

    public Map<String, Object> update(final JsonCommand command) {
        final Map<String, Object> actualChanges = new LinkedHashMap<>(7);

        final List<ApiParameterError> dataValidationErrors = new ArrayList<>();
        final DataValidatorBuilder baseDataValidator = new DataValidatorBuilder(dataValidationErrors).resource("holiday" + ".update");

        final HolidayStatusType currentStatus = HolidayStatusType.fromInt(this.status);

        final String dateFormatAsInput = command.dateFormat();
        final String localeAsInput = command.locale();

        if (command.isChangeInStringParameterNamed(nameParamName, this.name)) {
            final String newValue = command.stringValueOfParameterNamed(nameParamName);
            actualChanges.put(nameParamName, newValue);
            this.name = StringUtils.defaultIfEmpty(newValue, null);
        }

        if (command.isChangeInStringParameterNamed(descriptionParamName, this.description)) {
            final String newValue = command.stringValueOfParameterNamed(descriptionParamName);
            actualChanges.put(descriptionParamName, newValue);
            this.description = StringUtils.defaultIfEmpty(newValue, null);
        }

        if (currentStatus.isPendingActivation()) {
            if (command.isChangeInLocalDateParameterNamed(fromDateParamName, getFromDateLocalDate())) {
                final String valueAsInput = command.stringValueOfParameterNamed(fromDateParamName);
                actualChanges.put(fromDateParamName, valueAsInput);
                actualChanges.put(dateFormatParamName, dateFormatAsInput);
                actualChanges.put(localeParamName, localeAsInput);
                final LocalDate newValue = command.localDateValueOfParameterNamed(fromDateParamName);
                this.fromDate = newValue.toDate();
            }

            if (command.isChangeInLocalDateParameterNamed(toDateParamName, getToDateLocalDate())) {
                final String valueAsInput = command.stringValueOfParameterNamed(toDateParamName);
                actualChanges.put(toDateParamName, valueAsInput);
                actualChanges.put(dateFormatParamName, dateFormatAsInput);
                actualChanges.put(localeParamName, localeAsInput);

                final LocalDate newValue = command.localDateValueOfParameterNamed(toDateParamName);
                this.toDate = newValue.toDate();
            }

            if (command.isChangeInLocalDateParameterNamed(repaymentsRescheduledToParamName, getRepaymentsRescheduledToLocalDate())) {
                final String valueAsInput = command.stringValueOfParameterNamed(repaymentsRescheduledToParamName);
                actualChanges.put(repaymentsRescheduledToParamName, valueAsInput);
                actualChanges.put(dateFormatParamName, dateFormatAsInput);
                actualChanges.put(localeParamName, localeAsInput);

                final LocalDate newValue = command.localDateValueOfParameterNamed(repaymentsRescheduledToParamName);
                this.repaymentsRescheduledTo = newValue.toDate();
            }

            if (command.hasParameter(officesParamName)) {
                final JsonArray jsonArray = command.arrayOfParameterNamed(officesParamName);
                if (jsonArray != null) {
                    actualChanges.put(officesParamName, command.jsonFragment(officesParamName));
                }
            }
        } else {
            if (command.isChangeInLocalDateParameterNamed(fromDateParamName, getFromDateLocalDate())) {
                baseDataValidator.reset().parameter(fromDateParamName).failWithCode("cannot.edit.holiday.in.active.state");
            }

            if (command.isChangeInLocalDateParameterNamed(toDateParamName, getToDateLocalDate())) {
                baseDataValidator.reset().parameter(toDateParamName).failWithCode("cannot.edit.holiday.in.active.state");
            }

            if (command.isChangeInLocalDateParameterNamed(repaymentsRescheduledToParamName, getRepaymentsRescheduledToLocalDate())) {
                baseDataValidator.reset().parameter(repaymentsRescheduledToParamName).failWithCode("cannot.edit.holiday.in.active.state");
            }

            if (command.hasParameter(officesParamName)) {
                baseDataValidator.reset().parameter(repaymentsRescheduledToParamName).failWithCode("cannot.edit.holiday.in.active.state");
            }

            if (!dataValidationErrors.isEmpty()) { throw new PlatformApiDataValidationException(dataValidationErrors); }
        }

        return actualChanges;
    }

    public boolean update(final Set<Office> newOffices) {
        if (newOffices == null) { return false; }

        boolean updated = false;
        if (this.offices != null) {
            final Set<Office> currentSetOfOffices = new HashSet<>(this.offices);
            final Set<Office> newSetOfOffices = new HashSet<>(newOffices);

            if (!(currentSetOfOffices.equals(newSetOfOffices))) {
                updated = true;
                this.offices = newOffices;
            }
        } else {
            updated = true;
            this.offices = newOffices;
        }
        return updated;
    }

    private Holiday(final String name, final LocalDate fromDate, final LocalDate toDate, final LocalDate repaymentsRescheduledTo,
            final Integer status, final boolean processed, final String description, final Set<Office> offices) {
        if (StringUtils.isNotBlank(name)) {
            this.name = name.trim();
        }

        if (fromDate != null) {
            this.fromDate = fromDate.toDate();
        }

        if (toDate != null) {
            this.toDate = toDate.toDate();
        }

        if (repaymentsRescheduledTo != null) {
            this.repaymentsRescheduledTo = repaymentsRescheduledTo.toDate();
        }

        this.status = status;
        this.processed = processed;

        if (StringUtils.isNotBlank(name)) {
            this.description = description.trim();
        } else {
            this.description = null;
        }

        if (offices != null) {
            this.offices = offices;
        }
    }

    protected Holiday() {}

    public LocalDate getRepaymentsRescheduledToLocalDate() {
        LocalDate repaymentsRescheduledTo = null;
        if (this.repaymentsRescheduledTo != null) {
            repaymentsRescheduledTo = new LocalDate(this.repaymentsRescheduledTo);
        }
        return repaymentsRescheduledTo;
    }

    public boolean isProcessed() {
        return this.processed;
    }

    public Set<Office> getOffices() {
        return this.offices;
    }

    public LocalDate getFromDateLocalDate() {
        LocalDate fromDate = null;
        if (this.fromDate != null) {
            fromDate = new LocalDate(this.fromDate);
        }
        return fromDate;
    }

    public LocalDate getToDateLocalDate() {
        LocalDate toDate = null;
        if (this.toDate != null) {
            toDate = new LocalDate(this.toDate);
        }
        return toDate;
    }

    public void processed() {
        this.processed = true;
    }

    public void activate() {
        final List<ApiParameterError> dataValidationErrors = new ArrayList<>();
        final DataValidatorBuilder baseDataValidator = new DataValidatorBuilder(dataValidationErrors).resource("holiday" + ".activate");

        final HolidayStatusType currentStatus = HolidayStatusType.fromInt(this.status);
        if (!currentStatus.isPendingActivation()) {
            baseDataValidator.reset().failWithCodeNoParameterAddedToErrorCode("not.in.pending.for.activation.state");
            if (!dataValidationErrors.isEmpty()) { throw new PlatformApiDataValidationException(dataValidationErrors); }
        }

        this.status = HolidayStatusType.ACTIVE.getValue();
    }

    public void delete() {
        final List<ApiParameterError> dataValidationErrors = new ArrayList<>();
        final DataValidatorBuilder baseDataValidator = new DataValidatorBuilder(dataValidationErrors).resource("holiday" + ".delete");

        final HolidayStatusType currentStatus = HolidayStatusType.fromInt(this.status);
        if (currentStatus.isDeleted()) {
            baseDataValidator.reset().failWithCodeNoParameterAddedToErrorCode("already.in.deleted.state");
            if (!dataValidationErrors.isEmpty()) { throw new PlatformApiDataValidationException(dataValidationErrors); }
        }
        this.status = HolidayStatusType.DELETED.getValue();
    }
}