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<?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* 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.
*/
namespace OpenCloud\Image\Resource\JsonPatch;
/**
* Class which represents a JSON Patch document, which represents an array of objects. Each object represents a single
* operation to be applied to the target JSON document. See RFC 6902 for details.
*
* @see http://tools.ietf.org/html/rfc6902
* @package OpenCloud\Images\Resource\JsonPatch
*/
class Document
{
/** @var array JSON Patch operations */
protected $operations;
/**
* @return array
*/
public function getOperations()
{
return $this->operations;
}
/**
* Add a new JSON operation to the document
*
* @param Operation $operation
*/
public function addOperation(Operation $operation)
{
$this->operations[] = $operation;
}
/**
* Encode all the operations into a flat structure for HTTP transfer
*
* @return string
*/
public function getResponseBody()
{
$this->validateOperations();
return Encoder::encode($this->operations);
}
/**
* Ensure each operation is valid
*/
protected function validateOperations()
{
foreach ($this->operations as $operation) {
$operation->validate();
}
}
/**
* Cast this document as a string
*
* @return string
*/
public function toString()
{
return (string) $this->getResponseBody();
}
}