1: <?php
  2: /**
  3:  * LICENSE (BSD)
  4:  *
  5:  * Copyright (c) 2013, Gerd Christian Kunze
  6:  * All rights reserved.
  7:  *
  8:  * Redistribution and use in source and binary forms, with or without
  9:  * modification, are permitted provided that the following conditions are
 10:  * met:
 11:  *
 12:  *  * Redistributions of source code must retain the above copyright
 13:  *    notice, this list of conditions and the following disclaimer.
 14:  *
 15:  *  * Redistributions in binary form must reproduce the above copyright
 16:  *    notice, this list of conditions and the following disclaimer in the
 17:  *    documentation and/or other materials provided with the distribution.
 18:  *
 19:  *  * Neither the name of Gerd Christian Kunze nor the names of the
 20:  *    contributors may be used to endorse or promote products derived from
 21:  *    this software without specific prior written permission.
 22:  *
 23:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 24:  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 25:  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 26:  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 27:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 28:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 29:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 30:  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 31:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 32:  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 33:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 34:  *
 35:  * Instance
 36:  * 14.02.2013 11:25
 37:  */
 38: namespace MOC\Extension\Zip;
 39: use MOC\Api;
 40: use MOC\Generic\Device\Extension;
 41: 
 42: /**
 43:  *
 44:  */
 45: /** @noinspection PhpUndefinedClassInspection */
 46: class Instance implements Extension {
 47: 
 48:     /** @var Instance $Singleton */
 49:     private static $Singleton = null;
 50: 
 51:     /**
 52:      * Get Singleton/Instance
 53:      *
 54:      * @static
 55:      * @return Instance
 56:      */
 57:     public static function InterfaceInstance() {
 58:         require_once( '3rdParty/pclzip.lib.php' );
 59:         if( self::$Singleton === null ) {
 60:             self::$Singleton = new Instance();
 61:         } return self::$Singleton;
 62:     }
 63: 
 64:     /**
 65:      * Get Changelog
 66:      *
 67:      * @static
 68:      * @return \MOC\Core\Changelog
 69:      */
 70:     public static function InterfaceChangelog() {
 71:         return Api::Core()->Changelog()->Create( __CLASS__ )
 72:             ->Build()->Clearance( '18.02.2013 11:22', 'Alpha' )
 73:         ;
 74:     }
 75: 
 76:     /**
 77:      * Get Dependencies
 78:      *
 79:      * @static
 80:      * @return \MOC\Core\Depending
 81:      */
 82:     public static function InterfaceDepending() {
 83:         return Api::Core()->Depending();
 84:     }
 85: 
 86:     /** @var \PclZip[] $InstanceQueue */
 87:     private $InstanceQueue = array();
 88:     /** @var \PclZip $InstanceCurrent */
 89:     private $InstanceCurrent = null;
 90: 
 91:     /**
 92:      * @return Instance
 93:      */
 94:     public function Create() {
 95:         $Instance = new \PclZip('');
 96:         if( null === $this->InstanceCurrent ) {
 97:             $this->InstanceCurrent = $Instance;
 98:             return $this;
 99:         } else {
100:             array_push( $this->InstanceQueue, $this->InstanceCurrent );
101:             $this->InstanceCurrent = $Instance;
102:             return $this;
103:         }
104:     }
105: 
106:     /**
107:      * @return null|\PclZip
108:      */
109:     public function Current() {
110:         return $this->InstanceCurrent;
111:     }
112: 
113:     /**
114:      * @return Instance
115:      */
116:     public function Destroy() {
117:         if( count( $this->InstanceQueue ) ) {
118:             $this->InstanceCurrent = array_pop( $this->InstanceQueue );
119:         } else {
120:             $this->InstanceCurrent = null;
121:         }
122:         return $this;
123:     }
124: 
125:     /**
126:      * Set external Extension-Instance
127:      *
128:      * Contains:
129:      * - Set new (external created) 3rdParty Instance to Current
130:      *
131:      * @param $Instance
132:      *
133:      * @return Extension
134:      */
135:     public function Define( $Instance ) {
136:         // TODO: Implement Define() method.
137:     }
138: 
139:     /**
140:      * Select Index as active 3rdParty Instance
141:      *
142:      * @param int $Index
143:      *
144:      * @return Extension
145:      */
146:     public function Select( $Index ) {
147:         // TODO: Implement Select() method.
148:     }
149: 
150:     /**
151:      * Get Index for Select() from Current() 3rdParty Instance
152:      *
153:      * @return int
154:      */
155:     public function Index() {
156:         // TODO: Implement Index() method.
157:     }
158: 
159: }
160: