/*
* Copyright 2008 - 2010 Lars Heuer (heuer[at]semagia.com). All rights reserved.
*
* 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 com.semagia.atomico.dm.impl;
import com.semagia.atomico.dm.IAuthor;
/**
* Immutable {@link IAuthor} implementation.
*
* @author Lars Heuer (heuer[at]semagia.com) <a href="http://www.semagia.com/">Semagia</a>
*/
public final class Author implements IAuthor {
private final String _name;
private final String _email;
private final String _iri;
/**
* Creates an IAuthor with the name '[unknown]'.
*/
public Author() {
this("[unknown]");
}
/**
* Creates an author with the provided name.
*
* @param name The name of the author.
*/
public Author(final String name) {
this(name, null, null);
}
/**
* Creates an author with the provided name and e-mail address.
*
* @param name The name of the author.
* @param email The e-mail address of the author or {@code null}.
*/
public Author(final String name, final String email) {
this(name, email, null);
}
/**
* Creates an author with the provided name, e-mail address, and IRI.
*
* @param name The name of the author.
* @param email The e-mail address of the author or {@code null}.
* @param email The IRI of the author or {@code null}.
*/
public Author(final String name, final String email, final String iri) {
if (name == null || name.isEmpty()) {
throw new IllegalArgumentException("The author's name must not be null or empty");
}
if (email != null && email.isEmpty()) {
throw new IllegalArgumentException("The author's e-mail must not be empty");
}
if (iri != null && iri.isEmpty()) {
throw new IllegalArgumentException("The author's IRI must not be empty");
}
_name = name;
_email = email;
_iri = iri;
}
/* (non-Javadoc)
* @see com.semagia.atomico.dm.IAuthor#getName()
*/
@Override
public String getName() {
return _name;
}
/* (non-Javadoc)
* @see com.semagia.atomico.dm.IAuthor#getEmail()
*/
@Override
public String getEmail() {
return _email;
}
/* (non-Javadoc)
* @see com.semagia.atomico.dm.IAuthor#getIRI()
*/
@Override
public String getIRI() {
return _iri;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof IAuthor)) {
return false;
}
final IAuthor other = (IAuthor) obj;
return _name.equals(other.getName())
&& (_email == null ? other.getEmail() == null
: _email.equals(other.getEmail()))
&& (_iri == null ? other.getIRI() == null
: _iri.equals(other.getIRI()));
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
int result = _name.hashCode();
if (_email != null) {
result += 31 * _email.hashCode();
}
if (_iri != null) {
result += 31 * _iri.hashCode();
}
return result;
}
}