ConfigManager::doSubstitutions() - Code Metrics - Inspection of "Replaced file size estimating in SafeFileHandlingT..." - Yapeal/yapeal-ng - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( b659c5...c65770 )

by Michael

created 2017-01-23 23:34 UTC

ConfigManager::doSubstitutions() D

↳ Parent: ConfigManager

Complexity

Conditions	10
Paths	16

Size

Total Lines	38
Code Lines	29

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	23
CRAP Score	10.5696

Importance

Changes

Metric	Value
dl	0
loc	38
ccs	23
cts	28
cp	0.8214
rs	4.8196
c	0
b	0
f	0
cc	10
eloc	29
nc	16
nop	1
crap	10.5696

How to fix Complexity

<?php
declare(strict_types = 1);
/**
 * Contains class ConfigManager.
 *
 * PHP version 7.0+
 *
 * LICENSE:
 * This file is part of Yet Another Php Eve Api Library also know as Yapeal
 * which can be used to access the Eve Online API data and place it into a
 * database.
 * Copyright (C) 2016-2017 Michael Cummings
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see
 * <http://spdx.org/licenses/LGPL-3.0.html>.
 *
 * You should be able to find a copy of this license in the COPYING-LESSER.md
 * file. A copy of the GNU GPL should also be available in the COPYING.md file.
 *
 * @author    Michael Cummings <[email protected]>
 * @copyright 2016-2017 Michael Cummings
 * @license   LGPL-3.0+
 */
namespace Yapeal\Configuration;

use Yapeal\Container\ContainerInterface;

/**
 * Class ConfigManager.
 */
class ConfigManager implements ConfigManagementInterface
{
    /**
     * Default priority used with addConfigFile method.
     */
    const PRIORITY_DEFAULT = 1000;
    /**
     * ConfigManager constructor.
     *
     * @param ContainerInterface $dic      Container instance.
     * @param array              $settings Additional parameters or objects from non-config file source. Normally only
     *                                     used internal by Yapeal-ng for things that need to be added but it should
     *                                     still be possible for an application developer to override them so they can
     *                                     not be added to the Container directly and end up being protected. Mostly
     *                                     things that need to be done at run time like cache/ and log/ directory paths.
     */
    public function __construct(ContainerInterface $dic, array $settings = [])
    {
        $this->configFiles = [];
        $this->matchYapealOnly = false;
        $this->setDic($dic);
        $this->setSettings($settings);
    }
    /**
     * Add a new config file candidate to be used during the composing of settings.
     *
     * This method is expected to be used with the update() method to change the config files used during the composing
     * of settings.
     *
     * Though Yapeal-ng considers and treats all configuration files as optional the individual settings themselves are
     * not and many of them if missing can cause it to not start, to fail, or possible cause other undefined behavior
     * to happen instead.
     *
     * The behavior when adding the same config file with an absolute and relative path or more than one relative path
     * is undefined and may change and is considered unsupported. It makes little sense to do so anyway but mentioned
     * here so developers known to watch for this edge case.
     *
     * @param string $pathName Configuration file name with path. Path _should_ be absolute but it is not checked.
     * @param int    $priority An integer in the range 0 - PHP_INT_MAX with large number being a higher priority.
     *                         The range between 100 and 100000 inclusively are reserved for application developer use
     *                         with everything outside that range reserved for internal use only.
     * @param bool   $watched  Flag to tell if file should be monitored for changes and updates or read initially and
     *                         future changes ignored. Note that the $force flag of update() can be used to override
     *                         this parameter.
     *
     * @return array Return the added config file candidate entry with 'priority' and 'watched'.
     * @throws \InvalidArgumentException Throws this exception if you try adding the same $pathFile again. Use
     *                                   hasConfigFile() to see if entry already exists.
     * @throws \LogicException
     */
    public function addConfigFile(string $pathName, int $priority = self::PRIORITY_DEFAULT, bool $watched = true): array
    {
        if ($this->hasConfigFile($pathName)) {
            $mess = sprintf('Already added config file %s', $pathName);
            throw new \InvalidArgumentException($mess);
        }
        clearstatcache(true, $pathName);
        $this->configFiles[$pathName] = [
            'instance' => (new YamlConfigFile($pathName))->read(),
            'pathName' => $pathName,
            'priority' => $priority,
            'timestamp' => filemtime($pathName),
            'watched' => $watched
        ];
        return $this->configFiles[$pathName];
    }
    /**
     * @param string $pathName Configuration file name with path.
     * @param bool   $force    Override watched flag. Allows checking of normally unwatched files.
     *
     * @return bool Returns true if config file was updated, else false
     * @throws \InvalidArgumentException
     * @throws \LogicException
     */
    public function checkModifiedAndUpdate(string $pathName, bool $force = false): bool
    {
        if (!$this->hasConfigFile($pathName)) {
            $mess = 'Tried to check unknown config file ' . $pathName;
            throw new \InvalidArgumentException($mess);
        }
        $configFile = $this->configFiles[$pathName];
        /**
         * @var ConfigFileInterface $instance
         */
        if ($force || $configFile['watched']) {
            clearstatcache(true, $pathName);
            $currentTS = filemtime($pathName);
            if ($configFile['timestamp'] < $currentTS) {
                $instance = $configFile['instance'];
                $instance->read();
                $configFile['timestamp'] = $currentTS;
                return true;
            }
        }
        return false;
    }
    /**
     * The Create part of the CRUD interface.
     *
     * Creates a new Yapeal-ng config composed from the settings found in the given current config file(s). This would
     * be the closest to the original mode of Yapeal-ng where all the config files are processed once and then use for
     * the rest of the time. Both in the classic cron/scheduled task and when using 'yc Y:A' (Yapeal:AutoMagic) command
     * this is the closest match to how they worked. All existing settings from the current known config files will be
     * forgotten and the $configFiles list will be used to compose the new collection of settings.
     *
     * If you just need to update the processed config files look at using update() combined with addConfigFiles() and
     * removeConfigFile().
     *
     * One or more config file(s) must have been given and there must be some actual settings found after they have
     * been processed or an exception will be thrown.
     *
     * The $configFiles parameter can be just a plain list (array) of config file names with directory paths. If given
     * a plain list like this Yapeal-ng will use the default priority and watched modes as seen in the addConfigFile()
     * method. An example of this would look something like this:
     *
     * <code>
     * <?php
     * ...
     * $manager = new ConfigManager($dic);
     * $configFiles = [
     *     __DIR__ . '/yapealDefaults.yaml',
     *     dirname(__DIR__, 2) . '/config/yapeal.yaml'
     * ];
     * $manager->create($configFiles);
     * ...
     * </code>
     *
     * An example that includes optional priority and watched flags:
     * <code>>
     * <?php
     * ...
     * $manager = new ConfigManager($dic);
     * $configFiles = [
     *     ['pathName' => __DIR__ . '/yapealDefaults.yaml', 'priority' => PHP_INT_MAX, 'watched' => false],
     *     ['pathName' => dirname(__DIR__, 2) . '/config/yapeal.yaml', 'priority' => 10],
     *     ['pathName' => __DIR__ . '/special/run.yaml']
     * ];
     * $manager->create($configFiles);
     * ...
     * </code>
     *
     * Including either 'priority' or 'watched' is optional and they will receive the same default value(s) as from
     * addConfigFile() if not given.
     *
     * @param array $configFiles A list of config file names with optional priority and watched flag. See example for
     *                           how to include them.
     *
     * @return bool
     * @throws \DomainException
     * @throws \InvalidArgumentException
     * @throws \LogicException
     */
    public function create(array $configFiles): bool
    {
        $this->configFiles = [];
        foreach ($configFiles as $value) {
            if (is_string($value)) {
                $value = ['pathName' => $value];
            } elseif (is_array($value)) {
                if (!array_key_exists('pathName', $value)) {
                    $mess = 'Config file pathName in required';
                    throw new \InvalidArgumentException($mess);
                }
            } else {
                $mess = 'Config file element must be a string or an array but was given ' . gettype($value);
                throw new \InvalidArgumentException($mess);
            }
            $this->addConfigFile($value['pathName'],
                $value['priority'] ?? self::PRIORITY_DEFAULT,
                $value['watched'] ?? true);
        }
        return $this->update();
    }
    /**
     * The Delete part of the CRUD interface.
     *
     * This both removes all the candidate config files and removes all of their settings so the Container retains only
     * those settings it originally had when given. This does _not_ necessarily mean it is fully reset. The reason this
     * can't provide a complete reset is that while the other config files were being used their settings might have
     * been used in any created callable instances or as substitutions in the original. The only way to insure this
     * does not happen would be to not use any substitutions or other settings from outside the original Container
     * ones. This shouldn't be an issue as by default only an empty or nearly empty Container is normal given to the
     * ConfigManager instance. I just wanted to clearly document this effect to remind myself and anyone else to use
     * care when giving a non-empty Container to the ConfigManager instance and the ripple effects they can have and be
     * effected by other things.
     *
     * @return bool
     */
    public function delete(): bool
    {
        $this->removeUnprotectedSettings();
        $this->configFiles = [];
        return true;
    }
    /**
     * Allows checking if a config file candidate has already been added.
     *
     * @param string $pathName Configuration file name with path. Path _should_ be absolute but it is not checked.
     *
     * @return bool Returns true if candidate entry exist, false if unknown.
     */
    public function hasConfigFile(string $pathName): bool
    {
        return array_key_exists($pathName, $this->configFiles);
    }
    /**
     * The Read part of the CRUD interface.
     *
     * Since the Container where the settings are kept is one of the main shared objects inside Yapeal-ng this is mostly
     * redundant but used this method as a way to return only stuff added by the config files.
     *
     * @return array
     */
    public function read(): array
    {
        $additions = array_diff($this->dic->keys(), $this->protectedKeys);
        $settings = [];
        foreach ($additions as $addition) {
            $settings[$addition] = $this->dic[$addition];
        }
        return $settings;
    }
    /**
     * Remove an existing config file candidate entry.
     *
     * This method is expected to be used with the update() method to change the config files used during the composing
     * of settings.
     *
     * @param string $pathName Configuration file name with path. Path _should_ be absolute but it is not checked.
     *
     * @return array Return the removed config file candidate entry with 'priority' and 'watched'.
     * @see addConfigFile()
     * @throws \InvalidArgumentException Throw this exception if there is no matching entry found. Use hasConfigFile()
     *                                   to check if the candidate config file entry exists.
     */
    public function removeConfigFile(string $pathName): array
    {
        if (!$this->hasConfigFile($pathName)) {
            $mess = sprintf('Tried to remove unknown config file %s', $pathName);
            throw new \InvalidArgumentException($mess);
        }
        $result = $this->configFiles[$pathName];
        unset($this->configFiles[$pathName]);
        return $result;
    }
    /**
     * @param ContainerInterface $value
     *
     * @return self Fluent interface
     */
    public function setDic(ContainerInterface $value): self
    {
        $this->dic = $value;
        $this->protectedKeys = $value->keys();
        // Make self protected key.
        $this->protectedKeys[] = 'Yapeal.Configuration.Callable.Manager';
        // Insure main wiring class is protected key as well.
        $this->protectedKeys[] = 'Yapeal.Wiring.Callable.Wiring';
        return $this;
    }
    /**
     * Sets substitutions to require Yapeal prefix or to be more generic.
     *
     * @param bool $value
     *
     * @return self Fluent interface
     * @see doSubstitutions()
     */
    public function setMatchYapealOnly(bool $value = true): self
    {
        $this->matchYapealOnly = $value;
        return $this;
    }
    /**
     * @param array $value
     *
     * @return self Fluent interface
     */
    public function setSettings(array $value = []): self
    {
        $this->settings = $value;
        return $this;
    }
    /**
     * The Update part of the CRUD interface.
     *
     * It is expected that this will see little or no use if Yapeal-ng is being used in the typical/original mode via
     * direct calls to the Yapeal::autoMagic() method or manually running 'yc Y:A' from the command line but this
     * method is expected to be used in a planned future Yapeal-ng daemon. This planned new daemon is one of the main
     * reasons this interface and the implementing class are being created so it can be signaled to re-read it's
     * configuration or even watch and auto-update it's configuration when it notices changes to any of the given
     * config files.
     *
     * Note that it expected that the addConfigFile() and removeConfigFile() methods have been called already to change
     * which config files will be used to compose the new settings.
     *
     * @param bool $force Override watched flag. Allows checking of normally unwatched files.
     *
     * @return bool
     * @throws \InvalidArgumentException
     * @throws \LogicException
     */
    public function update(bool $force = false): bool
    {
        $this->removeUnprotectedSettings();
        $settings = $this->settings;
        $this->sortConfigFiles();
        /**
         * @var ConfigFileInterface $instance
         */
        foreach ($this->configFiles as $pathName => $configFile) {
            $this->checkModifiedAndUpdate($pathName, $force);
            $instance = $configFile['instance'];
            $settings = array_replace($settings, $instance->flattenYaml());
        }
        $this->doSubstitutions($settings);
        return true;
    }
    /**
     * Looks for and replaces any {Yapeal.*} it finds in values with the corresponding other setting value.
     *
     * This will replace full value or part of the value. Examples:
     *
     *     $settings = [
     *         'Yapeal.baseDir' => '/my/junk/path/Yapeal/',
     *         'Yapeal.libDir' => '{Yapeal.baseDir}lib/'
     *         'Yapeal.Sql.dir' => '{Yapeal.libDir}Sql/'
     *     ];
     *
     * After doSubstitutions would be:
     *
     *     $settings = [
     *         'Yapeal.baseDir' => '/my/junk/path/Yapeal/',
     *         'Yapeal.libDir' => '/my/junk/path/Yapeal/lib/'
     *         'Yapeal.Sql.dir' => '/my/junk/path/Yapeal/lib/Sql/'
     *     ];
     *
     * Note that order in which subs are done is undefined so it could have
     * done libDir first and then baseDir into both or done baseDir into libDir
     * then libDir into Sql.dir.
     *
     * Subs from within $settings itself are used first with $dic used to
     * fill-in as needed for any unknown ones.
     *
     * Subs are tried up to 25 times as long as any {Yapeal.*} are found before
     * giving up to prevent infinite loop.
     *
     * @param array $settings
     *
     * @throws \InvalidArgumentException
     */
    protected function doSubstitutions(array $settings)
    {
        $additions = array_diff(array_keys($settings), $this->protectedKeys);
        $depth = 0;
        $maxDepth = 25;
        $regEx = sprintf('#(.*?)\{((?:%s)(?:\.\w+)+)\}(.*)#', $this->matchYapealOnly ? 'Yapeal' : '\w+');
        do {
            $miss = 0;
            foreach ($additions as $addition) {
                if (!is_string($settings[$addition])) {
                    continue;
                }
                $matched = preg_match($regEx, $settings[$addition], $matches);
                if (1 === $matched) {
                    $sub = $this->dic[$matches[2]] ?? $settings[$matches[2]] ?? $matches[2];
                    $settings[$addition] = $matches[1] . $sub . $matches[3];
                    if (fnmatch('*{*.*}*', $settings[$addition])) {
                        ++$miss;
                    }
                } elseif (false === $matched) {
                    $constants = array_flip(array_filter(get_defined_constants(),
                        function (string $value) {
                            return fnmatch('PREG_*_ERROR', $value);
                        },
                        ARRAY_FILTER_USE_KEY));
                    $mess = 'Received preg error ' . $constants[preg_last_error()];
                    throw new \InvalidArgumentException($mess);
                }
            }
            if (++$depth > $maxDepth) {
                $mess = 'Exceeded maximum depth, check for possible circular reference(s)';
                throw new \InvalidArgumentException($mess);
            }
        } while (0 < $miss);
        foreach ($additions as $add) {
            $this->dic[$add] = $settings[$add];
        }
    }
    /**
     * Used to remove any parameters or objects that were added from config files.
     */
    private function removeUnprotectedSettings()
    {
        $subtractions = array_diff($this->dic->keys(), $this->protectedKeys);
        foreach ($subtractions as $sub) {
            unset($this->dic[$sub]);
        }
    }
    /**
     * Sorts config files by priority/path name order.
     *
     * Sorted the config files by their descending priority order (largest-smallest). If there are config files with
     * equal priorities they will be sorted by descending path name order.
     */
    private function sortConfigFiles()
    {
        uasort($this->configFiles,
            function ($a, $b) {
                $sort = $b['priority'] <=> $a['priority'];
                if (0 === $sort) {
                    $sort = $b['pathName'] <=> $a['pathName'];
                }
                return $sort;
            });
    }
    /**
     * @var array $configFiles
     */
    private $configFiles;
    /**
     * @var ContainerInterface $dic
     */
    private $dic;
    /**
     * Flag used while doing substitutions to decide if generic pattern or Yapeal prefixed one should be used.
     *
     * @var bool $matchYapealOnly
     * @see doSubstitutions()
     */
    private $matchYapealOnly;
    /**
     * List of Container keys that are protected from being overwritten.
     *
     * @var array $protectedKeys
     */
    private $protectedKeys;
    /**
     * @var array $settings
     */
    private $settings;
}


1		<?php
2		declare(strict_types = 1);
3		/**
4		* Contains class ConfigManager.
5		*
6		* PHP version 7.0+
7		*
8		* LICENSE:
9		* This file is part of Yet Another Php Eve Api Library also know as Yapeal
10		* which can be used to access the Eve Online API data and place it into a
11		* database.
12		* Copyright (C) 2016-2017 Michael Cummings
13		*
14		* This program is free software: you can redistribute it and/or modify it
15		* under the terms of the GNU Lesser General Public License as published by the
16		* Free Software Foundation, either version 3 of the License, or (at your
17		* option) any later version.
18		*
19		* This program is distributed in the hope that it will be useful, but WITHOUT
20		* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
21		* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
22		* for more details.
23		*
24		* You should have received a copy of the GNU Lesser General Public License
25		* along with this program. If not, see
26		* <http://spdx.org/licenses/LGPL-3.0.html>.
27		*
28		* You should be able to find a copy of this license in the COPYING-LESSER.md
29		* file. A copy of the GNU GPL should also be available in the COPYING.md file.
30		*
31		* @author Michael Cummings <[email protected]>
32		* @copyright 2016-2017 Michael Cummings
33		* @license LGPL-3.0+
34		*/
35		namespace Yapeal\Configuration;
36
37		use Yapeal\Container\ContainerInterface;
38
39		/**
40		* Class ConfigManager.
41		*/
42		class ConfigManager implements ConfigManagementInterface
43		{
44		/**
45		* Default priority used with addConfigFile method.
46		*/
47		const PRIORITY_DEFAULT = 1000;
48		/**
49		* ConfigManager constructor.
50		*
51		* @param ContainerInterface $dic Container instance.
52		* @param array $settings Additional parameters or objects from non-config file source. Normally only
53		* used internal by Yapeal-ng for things that need to be added but it should
54		* still be possible for an application developer to override them so they can
55		* not be added to the Container directly and end up being protected. Mostly
56		* things that need to be done at run time like cache/ and log/ directory paths.
57		*/
58	19	public function __construct(ContainerInterface $dic, array $settings = [])
59		{
60	19	$this->configFiles = [];
61	19	$this->matchYapealOnly = false;
62	19	$this->setDic($dic);
63	19	$this->setSettings($settings);
64		}
65		/**
66		* Add a new config file candidate to be used during the composing of settings.
67		*
68		* This method is expected to be used with the update() method to change the config files used during the composing
69		* of settings.
70		*
71		* Though Yapeal-ng considers and treats all configuration files as optional the individual settings themselves are
72		* not and many of them if missing can cause it to not start, to fail, or possible cause other undefined behavior
73		* to happen instead.
74		*
75		* The behavior when adding the same config file with an absolute and relative path or more than one relative path
76		* is undefined and may change and is considered unsupported. It makes little sense to do so anyway but mentioned
77		* here so developers known to watch for this edge case.
78		*
79		* @param string $pathName Configuration file name with path. Path _should_ be absolute but it is not checked.
80		* @param int $priority An integer in the range 0 - PHP_INT_MAX with large number being a higher priority.
81		* The range between 100 and 100000 inclusively are reserved for application developer use
82		* with everything outside that range reserved for internal use only.
83		* @param bool $watched Flag to tell if file should be monitored for changes and updates or read initially and
84		* future changes ignored. Note that the $force flag of update() can be used to override
85		* this parameter.
86		*
87		* @return array Return the added config file candidate entry with 'priority' and 'watched'.
88		* @throws \InvalidArgumentException Throws this exception if you try adding the same $pathFile again. Use
89		* hasConfigFile() to see if entry already exists.
90		* @throws \LogicException
91		*/
92	13	public function addConfigFile(string $pathName, int $priority = self::PRIORITY_DEFAULT, bool $watched = true): array
93		{
94	13	if ($this->hasConfigFile($pathName)) {
95	1	$mess = sprintf('Already added config file %s', $pathName);
96	1	throw new \InvalidArgumentException($mess);
97		}
98	13	clearstatcache(true, $pathName);
99	13	$this->configFiles[$pathName] = [
100	13	'instance' => (new YamlConfigFile($pathName))->read(),
101	13	'pathName' => $pathName,
102	13	'priority' => $priority,
103	13	'timestamp' => filemtime($pathName),
104	13	'watched' => $watched
105		];
106	13	return $this->configFiles[$pathName];
107		}
108		/**
109		* @param string $pathName Configuration file name with path.
110		* @param bool $force Override watched flag. Allows checking of normally unwatched files.
111		*
112		* @return bool Returns true if config file was updated, else false
113		* @throws \InvalidArgumentException
114		* @throws \LogicException
115		*/
116	12	public function checkModifiedAndUpdate(string $pathName, bool $force = false): bool
117		{
118	12	if (!$this->hasConfigFile($pathName)) {
119	1	$mess = 'Tried to check unknown config file ' . $pathName;
120	1	throw new \InvalidArgumentException($mess);
121		}
122	11	$configFile = $this->configFiles[$pathName];
123		/**
124		* @var ConfigFileInterface $instance
125		*/
126	11	if ($force \|\| $configFile['watched']) {
127	10	clearstatcache(true, $pathName);
128	10	$currentTS = filemtime($pathName);
129	10	if ($configFile['timestamp'] < $currentTS) {
130	1	$instance = $configFile['instance'];
131	1	$instance->read();
132	1	$configFile['timestamp'] = $currentTS;
133	1	return true;
134		}
135		}
136	10	return false;
137		}
138		/**
139		* The Create part of the CRUD interface.
140		*
141		* Creates a new Yapeal-ng config composed from the settings found in the given current config file(s). This would
142		* be the closest to the original mode of Yapeal-ng where all the config files are processed once and then use for
143		* the rest of the time. Both in the classic cron/scheduled task and when using 'yc Y:A' (Yapeal:AutoMagic) command
144		* this is the closest match to how they worked. All existing settings from the current known config files will be
145		* forgotten and the $configFiles list will be used to compose the new collection of settings.
146		*
147		* If you just need to update the processed config files look at using update() combined with addConfigFiles() and
148		* removeConfigFile().
149		*
150		* One or more config file(s) must have been given and there must be some actual settings found after they have
151		* been processed or an exception will be thrown.
152		*
153		* The $configFiles parameter can be just a plain list (array) of config file names with directory paths. If given
154		* a plain list like this Yapeal-ng will use the default priority and watched modes as seen in the addConfigFile()
155		* method. An example of this would look something like this:
156		*
157		* <code>
158		* <?php
159		* ...
160		* $manager = new ConfigManager($dic);
161		* $configFiles = [
162		* __DIR__ . '/yapealDefaults.yaml',
163		* dirname(__DIR__, 2) . '/config/yapeal.yaml'
164		* ];
165		* $manager->create($configFiles);
166		* ...
167		* </code>
168		*
169		* An example that includes optional priority and watched flags:
170		* <code>>
171		* <?php
172		* ...
173		* $manager = new ConfigManager($dic);
174		* $configFiles = [
175		* ['pathName' => __DIR__ . '/yapealDefaults.yaml', 'priority' => PHP_INT_MAX, 'watched' => false],
176		* ['pathName' => dirname(__DIR__, 2) . '/config/yapeal.yaml', 'priority' => 10],
177		* ['pathName' => __DIR__ . '/special/run.yaml']
178		* ];
179		* $manager->create($configFiles);
180		* ...
181		* </code>
182		*
183		* Including either 'priority' or 'watched' is optional and they will receive the same default value(s) as from
184		* addConfigFile() if not given.
185		*
186		* @param array $configFiles A list of config file names with optional priority and watched flag. See example for
187		* how to include them.
188		*
189		* @return bool
190		* @throws \DomainException
191		* @throws \InvalidArgumentException
192		* @throws \LogicException
193		*/
194	13	public function create(array $configFiles): bool
195		{
196	13	$this->configFiles = [];
197	13	foreach ($configFiles as $value) {
198	12	if (is_string($value)) {
199	8	$value = ['pathName' => $value];
200	4	} elseif (is_array($value)) {
201	3	if (!array_key_exists('pathName', $value)) {
202	1	$mess = 'Config file pathName in required';
203	3	throw new \InvalidArgumentException($mess);
204		}
205		} else {
206	1	$mess = 'Config file element must be a string or an array but was given ' . gettype($value);
207	1	throw new \InvalidArgumentException($mess);
208		}
209	10	$this->addConfigFile($value['pathName'],
210	10	$value['priority'] ?? self::PRIORITY_DEFAULT,
211	10	$value['watched'] ?? true);
212		}
213	10	return $this->update();
214		}
215		/**
216		* The Delete part of the CRUD interface.
217		*
218		* This both removes all the candidate config files and removes all of their settings so the Container retains only
219		* those settings it originally had when given. This does _not_ necessarily mean it is fully reset. The reason this
220		* can't provide a complete reset is that while the other config files were being used their settings might have
221		* been used in any created callable instances or as substitutions in the original. The only way to insure this
222		* does not happen would be to not use any substitutions or other settings from outside the original Container
223		* ones. This shouldn't be an issue as by default only an empty or nearly empty Container is normal given to the
224		* ConfigManager instance. I just wanted to clearly document this effect to remind myself and anyone else to use
225		* care when giving a non-empty Container to the ConfigManager instance and the ripple effects they can have and be
226		* effected by other things.
227		*
228		* @return bool
229		*/
230	1	public function delete(): bool
231		{
232	1	$this->removeUnprotectedSettings();
233	1	$this->configFiles = [];
234	1	return true;
235		}
236		/**
237		* Allows checking if a config file candidate has already been added.
238		*
239		* @param string $pathName Configuration file name with path. Path _should_ be absolute but it is not checked.
240		*
241		* @return bool Returns true if candidate entry exist, false if unknown.
242		*/
243	15	public function hasConfigFile(string $pathName): bool
244		{
245	15	return array_key_exists($pathName, $this->configFiles);
246		}
247		/**
248		* The Read part of the CRUD interface.
249		*
250		* Since the Container where the settings are kept is one of the main shared objects inside Yapeal-ng this is mostly
251		* redundant but used this method as a way to return only stuff added by the config files.
252		*
253		* @return array
254		*/
255	2	public function read(): array
256		{
257	2	$additions = array_diff($this->dic->keys(), $this->protectedKeys);
258	2	$settings = [];
259	2	foreach ($additions as $addition) {
260		$settings[$addition] = $this->dic[$addition];
261		}
262	2	return $settings;
263		}
264		/**
265		* Remove an existing config file candidate entry.
266		*
267		* This method is expected to be used with the update() method to change the config files used during the composing
268		* of settings.
269		*
270		* @param string $pathName Configuration file name with path. Path _should_ be absolute but it is not checked.
271		*
272		* @return array Return the removed config file candidate entry with 'priority' and 'watched'.
273		* @see addConfigFile()
274		* @throws \InvalidArgumentException Throw this exception if there is no matching entry found. Use hasConfigFile()
275		* to check if the candidate config file entry exists.
276		*/
277	2	public function removeConfigFile(string $pathName): array
278		{
279	2	if (!$this->hasConfigFile($pathName)) {
280	1	$mess = sprintf('Tried to remove unknown config file %s', $pathName);
281	1	throw new \InvalidArgumentException($mess);
282		}
283	1	$result = $this->configFiles[$pathName];
284	1	unset($this->configFiles[$pathName]);
285	1	return $result;
286		}
287		/**
288		* @param ContainerInterface $value
289		*
290		* @return self Fluent interface
291		*/
292	19	public function setDic(ContainerInterface $value): self
293		{
294	19	$this->dic = $value;
295	19	$this->protectedKeys = $value->keys();
296		// Make self protected key.
297	19	$this->protectedKeys[] = 'Yapeal.Configuration.Callable.Manager';
298		// Insure main wiring class is protected key as well.
299	19	$this->protectedKeys[] = 'Yapeal.Wiring.Callable.Wiring';
300	19	return $this;
301		}
302		/**
303		* Sets substitutions to require Yapeal prefix or to be more generic.
304		*
305		* @param bool $value
306		*
307		* @return self Fluent interface
308		* @see doSubstitutions()
309		*/
310	1	public function setMatchYapealOnly(bool $value = true): self
311		{
312	1	$this->matchYapealOnly = $value;
313	1	return $this;
314		}
315		/**
316		* @param array $value
317		*
318		* @return self Fluent interface
319		*/
320	19	public function setSettings(array $value = []): self
321		{
322	19	$this->settings = $value;
323	19	return $this;
324		}
325		/**
326		* The Update part of the CRUD interface.
327		*
328		* It is expected that this will see little or no use if Yapeal-ng is being used in the typical/original mode via
329		* direct calls to the Yapeal::autoMagic() method or manually running 'yc Y:A' from the command line but this
330		* method is expected to be used in a planned future Yapeal-ng daemon. This planned new daemon is one of the main
331		* reasons this interface and the implementing class are being created so it can be signaled to re-read it's
332		* configuration or even watch and auto-update it's configuration when it notices changes to any of the given
333		* config files.
334		*
335		* Note that it expected that the addConfigFile() and removeConfigFile() methods have been called already to change
336		* which config files will be used to compose the new settings.
337		*
338		* @param bool $force Override watched flag. Allows checking of normally unwatched files.
339		*
340		* @return bool
341		* @throws \InvalidArgumentException
342		* @throws \LogicException
343		*/
344	10	public function update(bool $force = false): bool
345		{
346	10	$this->removeUnprotectedSettings();
347	10	$settings = $this->settings;
348	10	$this->sortConfigFiles();
349		/**
350		* @var ConfigFileInterface $instance
351		*/
352	10	foreach ($this->configFiles as $pathName => $configFile) {
353	9	$this->checkModifiedAndUpdate($pathName, $force);
354	9	$instance = $configFile['instance'];
355	9	$settings = array_replace($settings, $instance->flattenYaml());
356		}
357	10	$this->doSubstitutions($settings);
358	9	return true;
359		}
360		/**
361		* Looks for and replaces any {Yapeal.*} it finds in values with the corresponding other setting value.
362		*
363		* This will replace full value or part of the value. Examples:
364		*
365		* $settings = [
366		* 'Yapeal.baseDir' => '/my/junk/path/Yapeal/',
367		* 'Yapeal.libDir' => '{Yapeal.baseDir}lib/'
368		* 'Yapeal.Sql.dir' => '{Yapeal.libDir}Sql/'
369		* ];
370		*
371		* After doSubstitutions would be:
372		*
373		* $settings = [
374		* 'Yapeal.baseDir' => '/my/junk/path/Yapeal/',
375		* 'Yapeal.libDir' => '/my/junk/path/Yapeal/lib/'
376		* 'Yapeal.Sql.dir' => '/my/junk/path/Yapeal/lib/Sql/'
377		* ];
378		*
379		* Note that order in which subs are done is undefined so it could have
380		* done libDir first and then baseDir into both or done baseDir into libDir
381		* then libDir into Sql.dir.
382		*
383		* Subs from within $settings itself are used first with $dic used to
384		* fill-in as needed for any unknown ones.
385		*
386		* Subs are tried up to 25 times as long as any {Yapeal.*} are found before
387		* giving up to prevent infinite loop.
388		*
389		* @param array $settings
390		*
391		* @throws \InvalidArgumentException
392		*/
393	10	protected function doSubstitutions(array $settings)
394		{
395	10	$additions = array_diff(array_keys($settings), $this->protectedKeys);
396	10	$depth = 0;
397	10	$maxDepth = 25;
398	10	$regEx = sprintf('#(.?)\{((?:%s)(?:\.\w+)+)\}(.)#', $this->matchYapealOnly ? 'Yapeal' : '\w+');
399		do {
400	10	$miss = 0;
401	10	foreach ($additions as $addition) {
402	8	if (!is_string($settings[$addition])) {
403	3	continue;
404		}
405	8	$matched = preg_match($regEx, $settings[$addition], $matches);
406	8	if (1 === $matched) {
407	3	$sub = $this->dic[$matches[2]] ?? $settings[$matches[2]] ?? $matches[2];
408	3	$settings[$addition] = $matches[1] . $sub . $matches[3];
409	3	if (fnmatch('{.}', $settings[$addition])) {
410	3	++$miss;
411		}
412	7	} elseif (false === $matched) {
413		$constants = array_flip(array_filter(get_defined_constants(),
414		function (string $value) {
415		return fnmatch('PREG_*_ERROR', $value);
416		},
417		ARRAY_FILTER_USE_KEY));
418		$mess = 'Received preg error ' . $constants[preg_last_error()];
419	8	throw new \InvalidArgumentException($mess);
420		}
421		}
422	10	if (++$depth > $maxDepth) {
423	1	$mess = 'Exceeded maximum depth, check for possible circular reference(s)';
424	1	throw new \InvalidArgumentException($mess);
425		}
426	10	} while (0 < $miss);
427	9	foreach ($additions as $add) {
428	7	$this->dic[$add] = $settings[$add];
429		}
430		}
431		/**
432		* Used to remove any parameters or objects that were added from config files.
433		*/
434	10	private function removeUnprotectedSettings()
435		{
436	10	$subtractions = array_diff($this->dic->keys(), $this->protectedKeys);
437	10	foreach ($subtractions as $sub) {
438	1	unset($this->dic[$sub]);
439		}
440		}
441		/**
442		* Sorts config files by priority/path name order.
443		*
444		* Sorted the config files by their descending priority order (largest-smallest). If there are config files with
445		* equal priorities they will be sorted by descending path name order.
446		*/
447	10	private function sortConfigFiles()
448		{
449	10	uasort($this->configFiles,
450	10	function ($a, $b) {
451	2	$sort = $b['priority'] <=> $a['priority'];
452	2	if (0 === $sort) {
453	1	$sort = $b['pathName'] <=> $a['pathName'];
454		}
455	2	return $sort;
456	10	});
457		}
458		/**
459		* @var array $configFiles
460		*/
461		private $configFiles;
462		/**
463		* @var ContainerInterface $dic
464		*/
465		private $dic;
466		/**
467		* Flag used while doing substitutions to decide if generic pattern or Yapeal prefixed one should be used.
468		*
469		* @var bool $matchYapealOnly
470		* @see doSubstitutions()
471		*/
472		private $matchYapealOnly;
473		/**
474		* List of Container keys that are protected from being overwritten.
475		*
476		* @var array $protectedKeys
477		*/
478		private $protectedKeys;
479		/**
480		* @var array $settings
481		*/
482		private $settings;
483		}
484

Yapeal / yapeal-ng

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ConfigManager::doSubstitutions() D

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