net.sourceforge.vulcan.dto.BaseDto.java Source code

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Here is the source code for net.sourceforge.vulcan.dto.BaseDto.java

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/*
 * Vulcan Build Manager
 * Copyright (C) 2005-2012 Chris Eldredge
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package net.sourceforge.vulcan.dto;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.io.Serializable;
import java.lang.reflect.Array;

import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;

public abstract class BaseDto implements Serializable, Cloneable, Copyable {
    protected transient PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);

    public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
        propertyChangeSupport.addPropertyChangeListener(propertyName, listener);
    }

    public void removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
        propertyChangeSupport.removePropertyChangeListener(propertyName, listener);
    }

    @Override
    public boolean equals(Object obj) {
        return EqualsBuilder.reflectionEquals(this, obj);
    }

    @Override
    public int hashCode() {
        return HashCodeBuilder.reflectionHashCode(this);
    }

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

    public BaseDto copy() {
        try {
            final BaseDto dto = (BaseDto) super.clone();
            dto.propertyChangeSupport = new PropertyChangeSupport(dto);
            return dto;
        } catch (CloneNotSupportedException e) {
            throw new RuntimeException("The world is flat.", e);
        }
    }

    @SuppressWarnings("unchecked")
    protected final <T extends BaseDto> T[] copyArray(T[] arr) {
        T[] copies = (T[]) Array.newInstance(arr.getClass().getComponentType(), arr.length);

        for (int i = 0; i < arr.length; i++) {
            copies[i] = (T) arr[i].copy();
        }

        return copies;
    }
}