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403 lines
11 KiB
403 lines
11 KiB
<?php
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namespace Guzzle\Common;
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use Guzzle\Common\Exception\InvalidArgumentException;
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use Guzzle\Common\Exception\RuntimeException;
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/**
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* Key value pair collection object
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*/
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class Collection implements \ArrayAccess, \IteratorAggregate, \Countable, ToArrayInterface
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{
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/** @var array Data associated with the object. */
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protected $data;
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/**
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* @param array $data Associative array of data to set
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*/
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public function __construct(array $data = array())
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{
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$this->data = $data;
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}
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/**
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* Create a new collection from an array, validate the keys, and add default values where missing
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*
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* @param array $config Configuration values to apply.
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* @param array $defaults Default parameters
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* @param array $required Required parameter names
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*
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* @return self
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* @throws InvalidArgumentException if a parameter is missing
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*/
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public static function fromConfig(array $config = array(), array $defaults = array(), array $required = array())
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{
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$data = $config + $defaults;
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if ($missing = array_diff($required, array_keys($data))) {
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throw new InvalidArgumentException('Config is missing the following keys: ' . implode(', ', $missing));
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}
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return new self($data);
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}
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public function count()
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{
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return count($this->data);
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}
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public function getIterator()
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{
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return new \ArrayIterator($this->data);
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}
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public function toArray()
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{
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return $this->data;
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}
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/**
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* Removes all key value pairs
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*
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* @return Collection
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*/
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public function clear()
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{
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$this->data = array();
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return $this;
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}
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/**
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* Get all or a subset of matching key value pairs
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*
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* @param array $keys Pass an array of keys to retrieve only a subset of key value pairs
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*
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* @return array Returns an array of all matching key value pairs
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*/
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public function getAll(array $keys = null)
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{
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return $keys ? array_intersect_key($this->data, array_flip($keys)) : $this->data;
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}
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/**
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* Get a specific key value.
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*
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* @param string $key Key to retrieve.
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*
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* @return mixed|null Value of the key or NULL
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*/
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public function get($key)
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{
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return isset($this->data[$key]) ? $this->data[$key] : null;
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}
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/**
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* Set a key value pair
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*
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* @param string $key Key to set
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* @param mixed $value Value to set
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*
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* @return Collection Returns a reference to the object
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*/
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public function set($key, $value)
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{
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$this->data[$key] = $value;
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return $this;
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}
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/**
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* Add a value to a key. If a key of the same name has already been added, the key value will be converted into an
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* array and the new value will be pushed to the end of the array.
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*
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* @param string $key Key to add
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* @param mixed $value Value to add to the key
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*
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* @return Collection Returns a reference to the object.
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*/
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public function add($key, $value)
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{
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if (!array_key_exists($key, $this->data)) {
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$this->data[$key] = $value;
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} elseif (is_array($this->data[$key])) {
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$this->data[$key][] = $value;
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} else {
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$this->data[$key] = array($this->data[$key], $value);
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}
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return $this;
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}
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/**
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* Remove a specific key value pair
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*
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* @param string $key A key to remove
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*
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* @return Collection
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*/
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public function remove($key)
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{
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unset($this->data[$key]);
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return $this;
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}
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/**
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* Get all keys in the collection
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*
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* @return array
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*/
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public function getKeys()
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{
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return array_keys($this->data);
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}
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/**
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* Returns whether or not the specified key is present.
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*
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* @param string $key The key for which to check the existence.
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*
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* @return bool
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*/
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public function hasKey($key)
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{
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return array_key_exists($key, $this->data);
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}
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/**
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* Case insensitive search the keys in the collection
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*
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* @param string $key Key to search for
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*
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* @return bool|string Returns false if not found, otherwise returns the key
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*/
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public function keySearch($key)
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{
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foreach (array_keys($this->data) as $k) {
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if (!strcasecmp($k, $key)) {
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return $k;
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}
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}
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return false;
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}
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/**
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* Checks if any keys contains a certain value
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*
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* @param string $value Value to search for
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*
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* @return mixed Returns the key if the value was found FALSE if the value was not found.
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*/
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public function hasValue($value)
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{
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return array_search($value, $this->data);
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}
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/**
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* Replace the data of the object with the value of an array
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*
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* @param array $data Associative array of data
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*
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* @return Collection Returns a reference to the object
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*/
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public function replace(array $data)
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{
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$this->data = $data;
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return $this;
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}
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/**
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* Add and merge in a Collection or array of key value pair data.
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*
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* @param Collection|array $data Associative array of key value pair data
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*
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* @return Collection Returns a reference to the object.
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*/
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public function merge($data)
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{
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foreach ($data as $key => $value) {
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$this->add($key, $value);
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}
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return $this;
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}
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/**
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* Over write key value pairs in this collection with all of the data from an array or collection.
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*
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* @param array|\Traversable $data Values to override over this config
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*
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* @return self
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*/
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public function overwriteWith($data)
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{
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if (is_array($data)) {
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$this->data = $data + $this->data;
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} elseif ($data instanceof Collection) {
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$this->data = $data->toArray() + $this->data;
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} else {
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foreach ($data as $key => $value) {
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$this->data[$key] = $value;
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}
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}
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return $this;
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}
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/**
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* Returns a Collection containing all the elements of the collection after applying the callback function to each
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* one. The Closure should accept three parameters: (string) $key, (string) $value, (array) $context and return a
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* modified value
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*
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* @param \Closure $closure Closure to apply
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* @param array $context Context to pass to the closure
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* @param bool $static Set to TRUE to use the same class as the return rather than returning a Collection
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*
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* @return Collection
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*/
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public function map(\Closure $closure, array $context = array(), $static = true)
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{
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$collection = $static ? new static() : new self();
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foreach ($this as $key => $value) {
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$collection->add($key, $closure($key, $value, $context));
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}
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return $collection;
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}
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/**
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* Iterates over each key value pair in the collection passing them to the Closure. If the Closure function returns
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* true, the current value from input is returned into the result Collection. The Closure must accept three
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* parameters: (string) $key, (string) $value and return Boolean TRUE or FALSE for each value.
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*
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* @param \Closure $closure Closure evaluation function
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* @param bool $static Set to TRUE to use the same class as the return rather than returning a Collection
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*
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* @return Collection
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*/
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public function filter(\Closure $closure, $static = true)
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{
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$collection = ($static) ? new static() : new self();
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foreach ($this->data as $key => $value) {
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if ($closure($key, $value)) {
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$collection->add($key, $value);
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}
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}
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return $collection;
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}
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public function offsetExists($offset)
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{
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return isset($this->data[$offset]);
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}
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public function offsetGet($offset)
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{
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return isset($this->data[$offset]) ? $this->data[$offset] : null;
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}
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public function offsetSet($offset, $value)
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{
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$this->data[$offset] = $value;
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}
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public function offsetUnset($offset)
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{
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unset($this->data[$offset]);
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}
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/**
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* Set a value into a nested array key. Keys will be created as needed to set the value.
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*
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* @param string $path Path to set
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* @param mixed $value Value to set at the key
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*
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* @return self
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* @throws RuntimeException when trying to setPath using a nested path that travels through a scalar value
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*/
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public function setPath($path, $value)
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{
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$current =& $this->data;
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$queue = explode('/', $path);
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while (null !== ($key = array_shift($queue))) {
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if (!is_array($current)) {
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throw new RuntimeException("Trying to setPath {$path}, but {$key} is set and is not an array");
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} elseif (!$queue) {
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$current[$key] = $value;
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} elseif (isset($current[$key])) {
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$current =& $current[$key];
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} else {
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$current[$key] = array();
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$current =& $current[$key];
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}
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}
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return $this;
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}
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/**
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* Gets a value from the collection using an array path (e.g. foo/baz/bar would retrieve bar from two nested arrays)
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* Allows for wildcard searches which recursively combine matches up to the level at which the wildcard occurs. This
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* can be useful for accepting any key of a sub-array and combining matching keys from each diverging path.
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*
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* @param string $path Path to traverse and retrieve a value from
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* @param string $separator Character used to add depth to the search
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* @param mixed $data Optional data to descend into (used when wildcards are encountered)
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*
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* @return mixed|null
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*/
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public function getPath($path, $separator = '/', $data = null)
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{
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if ($data === null) {
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$data =& $this->data;
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}
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$path = is_array($path) ? $path : explode($separator, $path);
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while (null !== ($part = array_shift($path))) {
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if (!is_array($data)) {
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return null;
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} elseif (isset($data[$part])) {
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$data =& $data[$part];
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} elseif ($part != '*') {
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return null;
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} else {
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// Perform a wildcard search by diverging and merging paths
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$result = array();
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foreach ($data as $value) {
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if (!$path) {
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$result = array_merge_recursive($result, (array) $value);
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} elseif (null !== ($test = $this->getPath($path, $separator, $value))) {
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$result = array_merge_recursive($result, (array) $test);
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}
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}
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return $result;
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}
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}
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return $data;
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}
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/**
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* Inject configuration settings into an input string
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*
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* @param string $input Input to inject
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*
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* @return string
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* @deprecated
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*/
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public function inject($input)
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{
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Version::warn(__METHOD__ . ' is deprecated');
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$replace = array();
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foreach ($this->data as $key => $val) {
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$replace['{' . $key . '}'] = $val;
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}
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return strtr($input, $replace);
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}
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}
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