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/**
 * Copyright (C) cedarsoft GmbH.
 *
 * Licensed under the GNU General Public License version 3 (the "License")
 * with Classpath Exception; you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *         http://www.cedarsoft.org/gpl3ce
 *         (GPL 3 with Classpath Exception)
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 3 only, as
 * published by the Free Software Foundation. cedarsoft GmbH designates this
 * particular file as subject to the "Classpath" exception as provided
 * by cedarsoft GmbH in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 3 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 3 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact cedarsoft GmbH, 72810 Gomaringen, Germany,
 * or visit www.cedarsoft.com if you need additional information or
 * have any questions.
 */

package com.cedarsoft.business.payment;

import com.cedarsoft.business.Money;
import com.cedarsoft.event.ClusteredPropertyChangeSupport;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.joda.time.LocalDate;

import java.beans.PropertyChangeListener;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

/**
 *
 */
public class DefaultPayment implements Payment {
  @NotNull
  @NonNls
  public static final String PROPERTY_DESCRIPTION = "description";
  @NotNull
  @NonNls
  public static final String PROPERTY_AMOUNT = "amount";
  @NotNull
  @NonNls
  public static final String PROPERTY_AMOUNT_NEGATIVE = "amountNegative";
  @NotNull
  @NonNls
  public static final String PROPERTY_DATE = "date";

  @NotNull
  protected ReadWriteLock lock = new ReentrantReadWriteLock();

  @NotNull
  protected final ClusteredPropertyChangeSupport  pcs = new ClusteredPropertyChangeSupport( this );


  @Deprecated
  private Long id;
  @NotNull
  private String description;
  @NotNull
  private Money amount;
  @NotNull
  private LocalDate date;

  /**
   * Hibernate
   */
  @Deprecated
  protected DefaultPayment() {
  }

  public DefaultPayment( @NotNull Money amount, @NotNull LocalDate date ) {
    this( amount, date, "" );
  }

  public DefaultPayment( @NotNull Money amount, @NotNull LocalDate date, @NotNull String description ) {
    this.amount = amount;
    this.date = date;
    this.description = description;
  }

  @NotNull
  public Money getAmount() {
    lock.readLock().lock();
    try {
      return amount;
    } finally {
      lock.readLock().unlock();
    }
  }

  @NotNull
  public Money getAmountNegative() {
    return getAmount().negative();
  }

  @NotNull
  public LocalDate getDate() {
    lock.readLock().lock();
    try {
      return date;
    } finally {
      lock.readLock().unlock();
    }
  }

  @NotNull
  public String getDescription() {
    lock.readLock().lock();
    try {
      return description;
    } finally {
      lock.readLock().unlock();
    }
  }

  public void setDescription( @NotNull String description ) {
    lock.writeLock().lock();
    try {
      pcs.firePropertyChange( PROPERTY_DESCRIPTION, this.description, this.description = description );
    } finally {
      lock.writeLock().unlock();
    }
  }

  public void setAmount( @NotNull Money amount ) {
    lock.writeLock().lock();
    try {
      pcs.firePropertyChange( PROPERTY_AMOUNT, this.amount, this.amount = amount );
    } finally {
      lock.writeLock().unlock();
    }
  }

  public void setAmountNegative( @NotNull Money amountNegative ) {
    setAmount( amountNegative.negative() );
  }

  public void setDate( @NotNull LocalDate date ) {
    lock.writeLock().lock();
    try {
      pcs.firePropertyChange( PROPERTY_DATE, this.date, this.date = date );
    } finally {
      lock.writeLock().unlock();
    }
  }

  public int compareTo( @NotNull Payment o ) {
    return getDate().compareTo( o.getDate() );
  }

  public void removePropertyChangeListener( @NotNull PropertyChangeListener listener ) {
    lock.writeLock().lock();
    try {
      pcs.removePropertyChangeListener( listener );
    } finally {
      lock.writeLock().unlock();
    }
  }

  public void removePropertyChangeListener( @NotNull @NonNls String propertyName, @NotNull PropertyChangeListener listener ) {
    lock.writeLock().lock();
    try {
      pcs.removePropertyChangeListener( propertyName, listener );
    } finally {
      lock.writeLock().unlock();
    }
  }

  public void addPropertyChangeListener( @NotNull PropertyChangeListener listener ) {
    lock.writeLock().lock();
    try {
      pcs.addPropertyChangeListener( listener );
    } finally {
      lock.writeLock().unlock();
    }
  }

  public void addPropertyChangeListener( @NotNull PropertyChangeListener listener, boolean isTransient ) {
    lock.writeLock().lock();
    try {
      pcs.addPropertyChangeListener( listener, isTransient );
    } finally {
      lock.writeLock().unlock();
    }
  }

  public void addPropertyChangeListener( @NotNull @NonNls String propertyName, @NotNull PropertyChangeListener listener ) {
    lock.writeLock().lock();
    try {
      pcs.addPropertyChangeListener( propertyName, listener );
    } finally {
      lock.writeLock().unlock();
    }
  }

  public void addPropertyChangeListener( @NotNull @NonNls String propertyName, @NotNull PropertyChangeListener listener, boolean isTransient ) {
    lock.writeLock().lock();
    try {
      pcs.addPropertyChangeListener( propertyName, listener, isTransient );
    } finally {
      lock.writeLock().unlock();
    }
  }

  @Override
  public String toString() {
    lock.readLock().lock();
    try {
      return "DefaultPayment{" +
          "amount=" + amount +
          ", date=" + date +
          ", description='" + description + '\'' +
          '}';
    } finally {
      lock.readLock().unlock();
    }
  }
}