Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

file 362 lines (315 sloc) 10.053 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362
<?php

/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Symfony\Component\Config\Definition;

use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
use Symfony\Component\Config\Definition\Exception\UnsetKeyException;

/**
* Represents an Array node in the config tree.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class ArrayNode extends BaseNode implements PrototypeNodeInterface
{
    protected $xmlRemappings;
    protected $children;
    protected $allowFalse;
    protected $allowNewKeys;
    protected $addIfNotSet;
    protected $performDeepMerging;
    protected $ignoreExtraKeys;

    /**
* Constructor.
*
* @param string $name The Node's name
* @param NodeInterface $parent The node parent
*/
    public function __construct($name, NodeInterface $parent = null)
    {
        parent::__construct($name, $parent);

        $this->children = array();
        $this->xmlRemappings = array();
        $this->removeKeyAttribute = true;
        $this->allowFalse = false;
        $this->addIfNotSet = false;
        $this->allowNewKeys = true;
        $this->performDeepMerging = true;
    }

    /**
* Retrieves the children of this node.
*
* @return array The children
*/
    public function getChildren()
    {
        return $this->children;
    }

    /**
* Sets the xml remappings that should be performed.
*
* @param array $remappings an array of the form array(array(string, string))
*/
    public function setXmlRemappings(array $remappings)
    {
        $this->xmlRemappings = $remappings;
    }

    /**
* Sets whether to add default values for this array if it has not been
* defined in any of the configuration files.
*
* @param Boolean $boolean
*/
    public function setAddIfNotSet($boolean)
    {
        $this->addIfNotSet = (Boolean) $boolean;
    }

    /**
* Sets whether false is allowed as value indicating that the array should be unset.
*
* @param Boolean $allow
*/
    public function setAllowFalse($allow)
    {
        $this->allowFalse = (Boolean) $allow;
    }

    /**
* Sets whether new keys can be defined in subsequent configurations.
*
* @param Boolean $allow
*/
    public function setAllowNewKeys($allow)
    {
        $this->allowNewKeys = (Boolean) $allow;
    }

    /**
* Sets if deep merging should occur.
*
* @param Boolean $boolean
*/
    public function setPerformDeepMerging($boolean)
    {
        $this->performDeepMerging = (Boolean) $boolean;
    }

    /**
* Whether extra keys should just be ignore without an exception.
*
* @param Boolean $boolean To allow extra keys
*/
    public function setIgnoreExtraKeys($boolean)
    {
        $this->ignoreExtraKeys = (Boolean) $boolean;
    }

    /**
* Sets the node Name.
*
* @param string $name The node's name
*/
    public function setName($name)
    {
        $this->name = $name;
    }

    /**
* Checks if the node has a default value.
*
* @return Boolean
*/
    public function hasDefaultValue()
    {
        return $this->addIfNotSet;
    }

    /**
* Retrieves the default value.
*
* @return array The default value
*
* @throws \RuntimeException if the node has no default value
*/
    public function getDefaultValue()
    {
        if (!$this->hasDefaultValue()) {
            throw new \RuntimeException(sprintf('The node at path "%s" has no default value.', $this->getPath()));
        }

        $defaults = array();
        foreach ($this->children as $name => $child) {
            if ($child->hasDefaultValue()) {
                $defaults[$name] = $child->getDefaultValue();
            }
        }

        return $defaults;
    }

    /**
* Adds a child node.
*
* @param NodeInterface $node The child node to add
*
* @throws \InvalidArgumentException when the child node has no name
* @throws \InvalidArgumentException when the child node's name is not unique
*/
    public function addChild(NodeInterface $node)
    {
        $name = $node->getName();
        if (empty($name)) {
            throw new \InvalidArgumentException('Child nodes must be named.');
        }
        if (isset($this->children[$name])) {
            throw new \InvalidArgumentException(sprintf('A child node named "%s" already exists.', $name));
        }

        $this->children[$name] = $node;
    }

    /**
* Finalizes the value of this node.
*
* @param mixed $value
*
* @return mixed The finalised value
*
* @throws UnsetKeyException
* @throws InvalidConfigurationException if the node doesn't have enough children
*/
    protected function finalizeValue($value)
    {
        if (false === $value) {
            $msg = sprintf('Unsetting key for path "%s", value: %s', $this->getPath(), json_encode($value));
            throw new UnsetKeyException($msg);
        }

        foreach ($this->children as $name => $child) {
            if (!array_key_exists($name, $value)) {
                if ($child->isRequired()) {
                    $msg = sprintf('The child node "%s" at path "%s" must be configured.', $name, $this->getPath());
                    $ex = new InvalidConfigurationException($msg);
                    $ex->setPath($this->getPath());

                    throw $ex;
                }

                if ($child->hasDefaultValue()) {
                    $value[$name] = $child->getDefaultValue();
                }

                continue;
            }

            try {
                $value[$name] = $child->finalize($value[$name]);
            } catch (UnsetKeyException $unset) {
                unset($value[$name]);
            }
        }

        return $value;
    }

    /**
* Validates the type of the value.
*
* @param mixed $value
*
* @throws InvalidTypeException
*/
    protected function validateType($value)
    {
        if (!is_array($value) && (!$this->allowFalse || false !== $value)) {
            $ex = new InvalidTypeException(sprintf(
                'Invalid type for path "%s". Expected array, but got %s',
                $this->getPath(),
                gettype($value)
            ));
            $ex->setPath($this->getPath());

            throw $ex;
        }
    }

    /**
* Normalizes the value.
*
* @param mixed $value The value to normalize
*
* @return mixed The normalized value
*/
    protected function normalizeValue($value)
    {
        if (false === $value) {
            return $value;
        }

        $value = $this->remapXml($value);

        $normalized = array();
        foreach ($this->children as $name => $child) {
            if (array_key_exists($name, $value)) {
                $normalized[$name] = $child->normalize($value[$name]);
                unset($value[$name]);
            }
        }

        // if extra fields are present, throw exception
        if (count($value) && !$this->ignoreExtraKeys) {
            $msg = sprintf('Unrecognized options "%s" under "%s"', implode(', ', array_keys($value)), $this->getPath());
            $ex = new InvalidConfigurationException($msg);
            $ex->setPath($this->getPath());

            throw $ex;
        }

        return $normalized;
    }

    /**
* Remaps multiple singular values to a single plural value.
*
* @param array $value The source values
*
* @return array The remapped values
*/
    protected function remapXml($value)
    {
        foreach ($this->xmlRemappings as $transformation) {
            list($singular, $plural) = $transformation;

            if (!isset($value[$singular])) {
                continue;
            }

            $value[$plural] = Processor::normalizeConfig($value, $singular, $plural);
            unset($value[$singular]);
        }

        return $value;
    }

    /**
* Merges values together.
*
* @param mixed $leftSide The left side to merge.
* @param mixed $rightSide The right side to merge.
*
* @return mixed The merged values
*
* @throws InvalidConfigurationException
* @throws \RuntimeException
*/
    protected function mergeValues($leftSide, $rightSide)
    {
        if (false === $rightSide) {
            // if this is still false after the last config has been merged the
            // finalization pass will take care of removing this key entirely
            return false;
        }

        if (false === $leftSide || !$this->performDeepMerging) {
            return $rightSide;
        }

        foreach ($rightSide as $k => $v) {
            // no conflict
            if (!array_key_exists($k, $leftSide)) {
                if (!$this->allowNewKeys) {
                    $ex = new InvalidConfigurationException(sprintf(
                        'You are not allowed to define new elements for path "%s". '
                       .'Please define all elements for this path in one config file. '
                       .'If you are trying to overwrite an element, make sure you redefine it '
                       .'with the same name.',
                        $this->getPath()
                    ));
                    $ex->setPath($this->getPath());

                    throw $ex;
                }

                $leftSide[$k] = $v;
                continue;
            }

            if (!isset($this->children[$k])) {
                throw new \RuntimeException('merge() expects a normalized config array.');
            }

            $leftSide[$k] = $this->children[$k]->merge($leftSide[$k], $v);
        }

        return $leftSide;
    }
}
Something went wrong with that request. Please try again.