Completed
Push — master ( 562445...20a120 )
by Andreas
05:35
created

manager::initialize()   C

Complexity

Conditions 12
Paths 181

Size

Total Lines 41
Code Lines 24

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 29
CRAP Score 12.1184

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 12
eloc 24
c 1
b 0
f 0
nc 181
nop 0
dl 0
loc 41
ccs 29
cts 32
cp 0.9063
crap 12.1184
rs 6.2916

How to fix   Complexity   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

1
<?php
2
/**
3
 * @author CONTENT CONTROL http://www.contentcontrol-berlin.de/
4
 * @copyright CONTENT CONTROL http://www.contentcontrol-berlin.de/
5
 * @license http://www.gnu.org/licenses/gpl.html GNU General Public License
6
 */
7
8
namespace midgard\portable\mgdschema;
9
10
use midgard\portable\xmlreader;
11
use midgard\portable\storage\connection;
12
13
class manager
14
{
15
    /**
16
     *
17
     * @var array
18
     */
19
    private $types;
20
21
    /**
22
     *
23
     * @var array
24
     */
25
    private $schemadirs;
26
27
    /**
28
     *
29
     * @var string
30
     */
31
    private $namespace;
32
33
    /**
34
     *
35
     * @var array
36
     */
37
    private $merged_types = [];
38
39
    /**
40
     *
41
     * @var array
42
     */
43
    private $child_classes = [];
44
45 14
    public function __construct(array $schemadirs, $namespace)
46
    {
47 14
        $this->schemadirs = $schemadirs;
48 14
        $this->namespace = $namespace;
49 14
    }
50
51 16
    public function get_types()
52
    {
53 16
        $this->initialize();
54 16
        return $this->types;
55
    }
56
57 11
    public function get_inherited_mapping()
58
    {
59 11
        $this->initialize();
60 11
        return $this->merged_types;
61
    }
62
63 14
    public function get_child_classes($typename)
64
    {
65 14
        $this->initialize();
66 14
        if (isset($this->child_classes[$typename])) {
67 9
            return $this->child_classes[$typename];
68
        }
69 11
        return [];
70
    }
71
72 15
    public function resolve_targetclass(property $property)
73
    {
74 15
        $this->initialize();
75
76 15
        $fqcn = $this->get_fcqn($property->link['target']);
77
78 15
        if (   isset($this->types[$fqcn])
79 15
            || $property->link['target'] === $property->get_parent()->name) {
80 15
            return $property->link['target'];
81
        }
82 5
        if (!isset($this->merged_types[$property->link['target']])) {
83
            throw new \Exception('Link to unknown class ' . $property->link['target']);
84
        }
85 5
        return $this->merged_types[$property->link['target']];
86
    }
87
88 19
    private function initialize()
89
    {
90 19
        if ($this->types !== null) {
91 18
            return;
92
        }
93 14
        $reader = new xmlreader;
94 14
        $types = $reader->parse(dirname(dirname(__DIR__)) . '/xml/core.xml');
95
96 14
        foreach ($this->schemadirs as $schemadir) {
97 14
            foreach (glob($schemadir . '*.xml', GLOB_NOSORT) as $filename) {
98 14
                if (!file_exists($filename)) {
99
                    connection::log()->warning('File exists check for ' . $filename . ' returned false, skipping');
100
                    continue;
101
                }
102 14
                $types = array_merge($types, $reader->parse($filename));
103 14
            }
104 14
        }
105
106 14
        $tablemap = [];
107 14
        foreach ($types as $name => $type) {
108 14
            if ($type->parent) {
109 14
                $this->register_child_class($type);
110 14
            }
111
112 14
            if (!isset($tablemap[$type->table])) {
113 14
                $tablemap[$type->table] = [];
114 14
            }
115 14
            $tablemap[$type->table][] = $type;
116 14
        }
117
118 14
        foreach ($tablemap as $name => $types) {
119 14
            if (count($types) == 1) {
120 14
                $this->add_type($types[0]);
121 14
                unset($tablemap[$name]);
122 14
            }
123 14
        }
124
125
        // We need to process those separately, to be sure the targets for rewriting links are present
126 14
        while ($types = array_pop($tablemap)) {
127 5
            if (!$this->create_merged_types($types)) {
128
                array_push($types, $tablemap);
129
            }
130 5
        }
131 14
    }
132
133 14
    private function register_child_class(type $type)
134
    {
135 14
        if (!isset($this->child_classes[$type->parent])) {
136 14
            $this->child_classes[$type->parent] = [];
137 14
        }
138 14
        $this->child_classes[$type->parent][$type->name] = $type->parentfield;
139 14
    }
140
141
    /**
142
     * This sort of provides a workaround for situations where two tables use the same name
143
     */
144 5
    private function create_merged_types(array $types)
145
    {
146 5
        $root_type = null;
147 5
        foreach ($types as $i => $type) {
148
            // TODO: We should have a second pass here that prefers classnames starting with midgard_
149 5
            if ($type->extends === '\\midgard\\portable\\api\\mgdobject') {
150 5
                $root_type = $type;
151 5
                unset($types[$i]);
152 5
                break;
153
            }
154 5
        }
155 5
        if (empty($root_type)) {
156
            throw new \Exception('could not determine root type of merged group');
157
        }
158
159 5
        foreach ($types as $type) {
160 5
            foreach ($type->get_properties() as $property) {
161 5
                if ($root_type->has_property($property->name)) {
162 5
                    $root_property = $root_type->get_property($property->name);
163 5
                    if ($root_property->field !== $property->field) {
164
                        connection::log()->error('Naming collision in ' . $root_type->name . ': Field ' . $type->name . '.' . $property->name . ' cannot use column ' . $property->field);
165
                    }
166 5
                    if ($root_property->type !== $property->type) {
167
                        connection::log()->warn('Naming collision in ' . $root_type->name . ': Field ' . $type->name . '.' . $property->name . ' cannot use type ' . $property->type);
168
                    }
169 5
                    continue;
170
                }
171 5
                $root_type->add_property($property);
172 5
            }
173
174 5
            if (isset($this->child_classes[$type->name])) {
175 5
                foreach ($this->child_classes[$type->name] as $childname => $parentfield) {
176 5
                    $child_type = $this->get_type_by_shortname($childname);
177 5
                    if ($child_type === null) {
178
                        return false;
179
                    }
180
181 5
                    $child_type->parent = $root_type->name;
182 5
                    $this->register_child_class($child_type);
183 5
                }
184 5
                unset($this->child_classes[$type->name]);
185 5
            }
186 5
            $this->merged_types[$type->name] = $root_type->name;
187 5
        }
188 5
        $this->add_type($root_type);
189 5
        return true;
190
    }
191
192 5
    private function get_type_by_shortname($classname)
193
    {
194 5
        $fqcn = $this->get_fcqn($classname);
195 5
        if (!isset($this->types[$fqcn])) {
196 5
            if (!isset($this->merged_types[$classname])) {
197
                return null;
198
            }
199 5
            $fqcn = $this->get_fcqn($this->merged_types[$classname]);
200 5
        }
201 5
        return $this->types[$fqcn];
202
    }
203
204 14
    private function add_type(type $type)
205
    {
206 14
        $classname = $type->name;
207
        // TODO: This should probably be in classgenerator
208 14
        if ($classname === 'midgard_user') {
209 14
            $type->extends = 'base_user';
210 14
        }
211 14
        if ($classname === 'midgard_person') {
212 14
            $type->extends = 'base_person';
213 14
        }
214 14
        if ($classname === 'midgard_parameter') {
215 14
            $type->extends = 'base_parameter';
216 14
        }
217 14
        if ($classname === 'midgard_repligard') {
218 14
            $type->extends = 'base_repligard';
219 14
        }
220 14
        if ($classname === 'midgard_attachment') {
221 14
            $type->extends = 'base_attachment';
222 14
        }
223 14
        $this->types[$this->get_fcqn($classname)] = $type;
224 14
    }
225
226 17
    private function get_fcqn($classname)
227
    {
228 17
        if (!empty($this->namespace)) {
229 17
            return $this->namespace . '\\' . $classname;
230
        }
231
        return $classname;
232
    }
233
}
234