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<?php
/**
* PHPUnit
*
* Copyright (c) 2002-2008, Sebastian Bergmann <sb@sebastian-bergmann.de>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Sebastian Bergmann nor the names of his
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @category Testing
* @package PHPUnit
* @author Sebastian Bergmann <sb@sebastian-bergmann.de>
* @copyright 2002-2008 Sebastian Bergmann <sb@sebastian-bergmann.de>
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
* @version SVN: $Id: MoneyBag.php 1985 2007-12-26 18:11:55Z sb $
* @link http://www.phpunit.de/
* @since File available since Release 2.3.0
*/
require_once 'IMoney.php';
require_once 'Money.php';
/**
* A MoneyBag.
*
* @category Testing
* @package PHPUnit
* @author Sebastian Bergmann <sb@sebastian-bergmann.de>
* @copyright 2002-2008 Sebastian Bergmann <sb@sebastian-bergmann.de>
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
* @version Release: 3.2.9
* @link http://www.phpunit.de/
* @since Class available since Release 2.3.0
*/
class MoneyBag implements IMoney {
protected $fMonies = array();
public static function create(IMoney $m1, IMoney $m2) {
$result = new MoneyBag();
$m1->appendTo($result);
$m2->appendTo($result);
return $result->simplify();
}
public function add(IMoney $m) {
return $m->addMoneyBag($this);
}
public function addMoney(Money $m) {
return MoneyBag::create($m, $this);
}
public function addMoneyBag(MoneyBag $s) {
return MoneyBag::create($s, $this);
}
public function appendBag(MoneyBag $aBag) {
foreach ($aBag->monies() as $aMoney) {
$this->appendMoney($aMoney);
}
}
public function monies() {
return $this->fMonies;
}
public function appendMoney(Money $aMoney) {
if ($aMoney->isZero()) {
return;
}
$old = $this->findMoney($aMoney->currency());
if ($old == NULL) {
$this->fMonies[] = $aMoney;
return;
}
$keys = array_keys($this->fMonies);
$max = count($keys);
for ($i = 0; $i < $max; $i ++) {
if ($this->fMonies[$keys[$i]] === $old) {
unset($this->fMonies[$keys[$i]]);
break;
}
}
$sum = $old->add($aMoney);
if ($sum->isZero()) {
return;
}
$this->fMonies[] = $sum;
}
public function equals($anObject) {
if ($this->isZero() && $anObject instanceof IMoney) {
return $anObject->isZero();
}
if ($anObject instanceof MoneyBag) {
if (count($anObject->monies()) != count($this->fMonies)) {
return FALSE;
}
foreach ($this->fMonies as $m) {
if (! $anObject->contains($m)) {
return FALSE;
}
}
return TRUE;
}
return FALSE;
}
protected function findMoney($currency) {
foreach ($this->fMonies as $m) {
if ($m->currency() == $currency) {
return $m;
}
}
return NULL;
}
protected function contains(Money $m) {
$found = $this->findMoney($m->currency());
if ($found == NULL) {
return FALSE;
}
return $found->amount() == $m->amount();
}
public function hashCode() {
$hash = 0;
foreach ($this->fMonies as $m) {
$hash ^= $m->hashCode();
}
return $hash;
}
public function isZero() {
return count($this->fMonies) == 0;
}
public function multiply($factor) {
$result = new MoneyBag();
if ($factor != 0) {
foreach ($this->fMonies as $m) {
$result->appendMoney($m->multiply($factor));
}
}
return $result;
}
public function negate() {
$result = new MoneyBag();
foreach ($this->fMonies as $m) {
$result->appendMoney($m->negate());
}
return $result;
}
protected function simplify() {
if (count($this->fMonies) == 1) {
return array_pop($this->fMonies);
}
return $this;
}
public function subtract(IMoney $m) {
return $this->add($m->negate());
}
public function toString() {
$buffer = '{';
foreach ($this->fMonies as $m) {
$buffer .= $m->toString();
}
return $buffer . '}';
}
public function appendTo(MoneyBag $m) {
$m->appendBag($this);
}
}
?>
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