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<?php
/*
* Copyright 2016 Google LLC
* 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 Google Inc. nor the names of its
* 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.
*/
namespace Google\ApiCore;
use Google\ApiCore\ResourceTemplate\AbsoluteResourceTemplate;
use Google\ApiCore\ResourceTemplate\RelativeResourceTemplate;
use Google\ApiCore\ResourceTemplate\ResourceTemplateInterface;
/**
* Represents a path template.
*
* Templates use the syntax of the API platform; see the protobuf of HttpRule for
* details. A template consists of a sequence of literals, wildcards, and variable bindings,
* where each binding can have a sub-path. A string representation can be parsed into an
* instance of PathTemplate, which can then be used to perform matching and instantiation.
*/
class PathTemplate implements ResourceTemplateInterface
{
private $resourceTemplate;
/**
* PathTemplate constructor.
*
* @param string $path A path template string
* @throws ValidationException When $path cannot be parsed into a valid PathTemplate
*/
public function __construct($path)
{
if (empty($path)) {
throw new ValidationException('Cannot construct PathTemplate from empty string');
}
if ($path[0] === '/') {
$this->resourceTemplate = new AbsoluteResourceTemplate($path);
} else {
$this->resourceTemplate = new RelativeResourceTemplate($path);
}
}
/**
* @return string A string representation of the path template
*/
public function __toString()
{
return $this->resourceTemplate->__toString();
}
/**
* Renders a path template using the provided bindings.
*
* @param array $bindings An array matching var names to binding strings.
* @throws ValidationException if a key isn't provided or if a sub-template
* can't be parsed.
* @return string A rendered representation of this path template.
*/
public function render(array $bindings)
{
return $this->resourceTemplate->render($bindings);
}
/**
* Check if $path matches a resource string.
*
* @param string $path A resource string.
* @return bool
*/
public function matches($path)
{
return $this->resourceTemplate->matches($path);
}
/**
* Matches a fully qualified path template string.
*
* @param string $path A fully qualified path template string.
* @throws ValidationException if path can't be matched to the template.
* @return array Array matching var names to binding values.
*/
public function match($path)
{
return $this->resourceTemplate->match($path);
}
}
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