Connection::hasOperation() - Code Metrics - Inspection of "Trying to reduce cyclomatic complexity." - gielfeldt/transactionalphp - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( eb2a9a...0ad9ec )

by Thomas

created 2016-05-21 21:32 UTC

Connection::hasOperation() A

↳ Parent: Connection

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	4
ccs	2
cts	2
cp	1
rs	10
cc	1
eloc	2
nc	1
nop	1
crap	1

<?php

namespace Gielfeldt\TransactionalPHP;

/**
 * Class Connection
 *
 * @package Gielfeldt\TransactionalPHP
 */
class Connection
{
    /**
     * @var Operation[]
     */
    protected $operations = [];

    /**
     * @var int
     */
    protected $idx = 0;

    /**
     * @var int[]
     */
    protected $savePoints = [];

    /**
     * @var int
     */
    protected $depth = 0;

    /**
     * @var null|string
     */
    protected $connectionId;

    /**
     * Connection constructor.
     *
     * @param null|string $connectionId
     *   (optional) The id of the connection.
     */
    public function __construct($connectionId = null)
    {
        $this->connectionId = isset($connectionId) ? $connectionId : uniqid();
    }

    /**
     * Get connection id.
     *
     * @return null|string
     */
    public function connectionId()
    {
        return $this->connectionId;
    }

    /**
     * Get current depth.
     *
     * @return int
     */
    public function getDepth()
    {
        return $this->depth;
    }

    /**
     * Remove save points to and acquire index of latest active savepoint.
     *
     * @param int $oldDepth
     *   The old depth.
     * @param $newDepth
     *   The new depth.
     *
     * @return Operation[]
     *   The operations found when closing save points.
     */
    protected function closeSavePoints($oldDepth, $newDepth)
    {
        $idx = null;
        for ($depth = $newDepth + 1; $depth <= $oldDepth; $depth++) {
            if (isset($this->savePoints[$depth])) {
                $idx = isset($idx) ? $idx : $this->savePoints[$depth];
                unset($this->savePoints[$depth]);
            }
        }

        $operations = [];

        // Collect the operations.
        if (isset($idx)) {
            end($this->operations);
            $lastIdx = key($this->operations);
            for ($removeIdx = $idx; $removeIdx <= $lastIdx; $removeIdx++) {
                if (isset($this->operations[$removeIdx])) {
                    $operations[$removeIdx] = $this->operations[$removeIdx];
                }
            }
            reset($this->operations);
        }
        return $operations;
    }

    /**
     * Run commit on operations and remove them from the buffer.
     *
     * @param Operation[]
     *   The operations to commit.
     */
    protected function commitOperations($operations) {
        foreach ($operations as $operation) {
            $operation->commit($this);
            $this->removeOperation($operation);
        }
    }

    /**
     * Run commit on operations and remove them from the buffer.
     *
     * @param Operation[]
     *   The operations to commit.
     */
    protected function rollbackOperations($operations) {
        foreach ($operations as $operation) {
            $operation->rollback($this);
            $this->removeOperation($operation);
        }
    }

    /**
     * Start transaction.
     *
     * @param int $newDepth
     *   (optional) If specified, use as new depth, otherwise increment current depth.
     *
     */
    public function startTransaction($newDepth = null)
    {
        $this->depth = isset($newDepth) ? $newDepth : $this->depth + 1;
        $this->savePoints[$this->depth] = $this->idx;
    }

    /**
     * Commit transaction.
     *
     * @param int $newDepth
     *   (optional) If specified, use as new depth, otherwise decrement current depth.
     *
     */
    public function commitTransaction($newDepth = null)
    {
        $oldDepth = $this->depth;
        $this->depth = isset($newDepth) ? $newDepth : $oldDepth - 1;
        if ($this->depth < 0) {
            throw new \RuntimeException('Trying to commit non-existant transaction.');
        }

        // Collect operations and commit if applicable.
        $operations = $this->closeSavePoints($oldDepth, $this->depth);

        // Is this a real commit.
        if ($this->depth == 0 && $operations) {

            $this->commitOperations($operations);
        }
    }

    /**
     * Rollback transaction.
     *
     * @param int $newDepth
     *   (optional) If specified, use as new depth, otherwise decrement current depth.
     *
     */
    public function rollbackTransaction($newDepth = null)
    {
        $oldDepth = $this->depth;
        $this->depth = isset($newDepth) ? $newDepth : $oldDepth - 1;
        if ($this->depth < 0) {
            throw new \RuntimeException('Trying to rollback non-existant transaction.');
        }

        // Collect operations and rollback.
        $operations = $this->closeSavePoints($oldDepth, $this->depth);
        $this->rollbackOperations($operations);
    }

    /**
     * Add operation.
     *
     * @param Operation $operation
     *   The operation to add to the connection.
     *
     * @return Operation
     *   The operation added.
     */
    public function addOperation(Operation $operation)
    {
        if ($this->depth <= 0) {
            $operation->commit();
            return $operation;
        }
        $idx = $this->idx;
        $this->idx++;
        $this->operations[$idx] = $operation;
        $operation->setIdx($this, $idx);
        return $operation;
    }

    /**
     * Check if the connection has an operation.
     *
     * @param Operation $operation
     *   The operation to check for.
     *
     * @return bool
     *   TRUE if the operation exists.
     */
    public function hasOperation(Operation $operation)
    {
        return isset($this->operations[$operation->idx($this)]);
    }

    /**
     * Remove operation.
     *
     * @param Operation $operation
     *   The operation to remove from the connection.
     */
    public function removeOperation(Operation $operation)
    {
        unset($this->operations[$operation->idx($this)]);
    }

    /**
     * Short-hand notation for adding code to be run on commit.
     *
     * @param callable $callback
     *   The code to run on commit.
     *
     * @return Operation
     *   The operation created.
     */
    public function onCommit(callable $callback)
    {
        return $this->addOperation((new Operation())
            ->onCommit($callback));
    }

    /**
     * Short-hand notation for adding code to be run on rollback.
     *
     * @param callable $callback
     *   The code to run on rollback.
     *
     * @return Operation
     *   The operation created.
     */
    public function onRollback(callable $callback)
    {
        return $this->addOperation((new Operation())
            ->onRollback($callback));
    }

    /**
     * Short-hand notation for adding code to be run on rollback.
     *
     * @param mixed $value
     *   The value to add.
     *
     * @return Operation
     *   The operation created.
     */
    public function addValue($value)
    {
        return $this->addOperation((new Operation())
            ->setValue($value));
    }
}


1		<?php
2
3		namespace Gielfeldt\TransactionalPHP;
4
5		/**
6		* Class Connection
7		*
8		* @package Gielfeldt\TransactionalPHP
9		*/
10		class Connection
11		{
12		/**
13		* @var Operation[]
14		*/
15		protected $operations = [];
16
17		/**
18		* @var int
19		*/
20		protected $idx = 0;
21
22		/**
23		* @var int[]
24		*/
25		protected $savePoints = [];
26
27		/**
28		* @var int
29		*/
30		protected $depth = 0;
31
32		/**
33		* @var null\|string
34		*/
35		protected $connectionId;
36
37		/**
38		* Connection constructor.
39		*
40		* @param null\|string $connectionId
41		* (optional) The id of the connection.
42		*/
43	1	public function __construct($connectionId = null)
44		{
45	1	$this->connectionId = isset($connectionId) ? $connectionId : uniqid();
46	1	}
47
48		/**
49		* Get connection id.
50		*
51		* @return null\|string
52		*/
53	1	public function connectionId()
54		{
55	1	return $this->connectionId;
56		}
57
58		/**
59		* Get current depth.
60		*
61		* @return int
62		*/
63	1	public function getDepth()
64		{
65	1	return $this->depth;
66		}
67
68		/**
69		* Remove save points to and acquire index of latest active savepoint.
70		*
71		* @param int $oldDepth
72		* The old depth.
73		* @param $newDepth
74		* The new depth.
75		*
76		* @return Operation[]
77		* The operations found when closing save points.
78		*/
79	2	protected function closeSavePoints($oldDepth, $newDepth)
80		{
81	2	$idx = null;
82	2	for ($depth = $newDepth + 1; $depth <= $oldDepth; $depth++) {
83	2	if (isset($this->savePoints[$depth])) {
84	2	$idx = isset($idx) ? $idx : $this->savePoints[$depth];
85	2	unset($this->savePoints[$depth]);
86	2	}
87	2	}
88
89	2	$operations = [];
90
91		// Collect the operations.
92	2	if (isset($idx)) {
93	2	end($this->operations);
94	2	$lastIdx = key($this->operations);
95	2	for ($removeIdx = $idx; $removeIdx <= $lastIdx; $removeIdx++) {
96	2	if (isset($this->operations[$removeIdx])) {
97	2	$operations[$removeIdx] = $this->operations[$removeIdx];
98	2	}
99	2	}
100	2	reset($this->operations);
101	2	}
102	2	return $operations;
103		}
104
105		/**
106		* Run commit on operations and remove them from the buffer.
107		*
108		* @param Operation[]
109		* The operations to commit.
110		*/
111	1	protected function commitOperations($operations) {
112	1	foreach ($operations as $operation) {
113	1	$operation->commit($this);
114	1	$this->removeOperation($operation);
115	1	}
116	1	}
117
118		/**
119		* Run commit on operations and remove them from the buffer.
120		*
121		* @param Operation[]
122		* The operations to commit.
123		*/
124	1	protected function rollbackOperations($operations) {
125	1	foreach ($operations as $operation) {
126	1	$operation->rollback($this);
127	1	$this->removeOperation($operation);
128	1	}
129	1	}
130
131		/**
132		* Start transaction.
133		*
134		* @param int $newDepth
135		* (optional) If specified, use as new depth, otherwise increment current depth.
136		*
137		*/
138	1	public function startTransaction($newDepth = null)
139		{
140	1	$this->depth = isset($newDepth) ? $newDepth : $this->depth + 1;
141	1	$this->savePoints[$this->depth] = $this->idx;
142	1	}
143
144		/**
145		* Commit transaction.
146		*
147		* @param int $newDepth
148		* (optional) If specified, use as new depth, otherwise decrement current depth.
149		*
150		*/
151	2	public function commitTransaction($newDepth = null)
152		{
153	2	$oldDepth = $this->depth;
154	2	$this->depth = isset($newDepth) ? $newDepth : $oldDepth - 1;
155	2	if ($this->depth < 0) {
156	1	throw new \RuntimeException('Trying to commit non-existant transaction.');
157		}
158
159		// Collect operations and commit if applicable.
160	2	$operations = $this->closeSavePoints($oldDepth, $this->depth);
161
162		// Is this a real commit.
163	2	if ($this->depth == 0 && $operations) {
		0 ignored issues – show Bug Best Practice introduced 2016-05-21 21:34 UTC by Report Bug Copy Issue Report The expression `$operations` of type `Gielfeldt\TransactionalPHP\Operation[]` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `! empty($expr)` instead to make it clear that you intend to check for an array without elements. This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent. Consider making the comparison explicit by using `empty(..)` or `! empty(...)` instead. Loading history...
164	1	$this->commitOperations($operations);
165	1	}
166	2	}
167
168		/**
169		* Rollback transaction.
170		*
171		* @param int $newDepth
172		* (optional) If specified, use as new depth, otherwise decrement current depth.
173		*
174		*/
175	2	public function rollbackTransaction($newDepth = null)
176		{
177	2	$oldDepth = $this->depth;
178	2	$this->depth = isset($newDepth) ? $newDepth : $oldDepth - 1;
179	2	if ($this->depth < 0) {
180	1	throw new \RuntimeException('Trying to rollback non-existant transaction.');
181		}
182
183		// Collect operations and rollback.
184	2	$operations = $this->closeSavePoints($oldDepth, $this->depth);
185	2	$this->rollbackOperations($operations);
186	2	}
187
188		/**
189		* Add operation.
190		*
191		* @param Operation $operation
192		* The operation to add to the connection.
193		*
194		* @return Operation
195		* The operation added.
196		*/
197	1	public function addOperation(Operation $operation)
198		{
199	1	if ($this->depth <= 0) {
200	1	$operation->commit();
201	1	return $operation;
202		}
203	1	$idx = $this->idx;
204	1	$this->idx++;
205	1	$this->operations[$idx] = $operation;
206	1	$operation->setIdx($this, $idx);
207	1	return $operation;
208		}
209
210		/**
211		* Check if the connection has an operation.
212		*
213		* @param Operation $operation
214		* The operation to check for.
215		*
216		* @return bool
217		* TRUE if the operation exists.
218		*/
219	2	public function hasOperation(Operation $operation)
220		{
221	2	return isset($this->operations[$operation->idx($this)]);
222		}
223
224		/**
225		* Remove operation.
226		*
227		* @param Operation $operation
228		* The operation to remove from the connection.
229		*/
230	1	public function removeOperation(Operation $operation)
231		{
232	1	unset($this->operations[$operation->idx($this)]);
233	1	}
234
235		/**
236		* Short-hand notation for adding code to be run on commit.
237		*
238		* @param callable $callback
239		* The code to run on commit.
240		*
241		* @return Operation
242		* The operation created.
243		*/
244	1	public function onCommit(callable $callback)
245		{
246	1	return $this->addOperation((new Operation())
247	1	->onCommit($callback));
248		}
249
250		/**
251		* Short-hand notation for adding code to be run on rollback.
252		*
253		* @param callable $callback
254		* The code to run on rollback.
255		*
256		* @return Operation
257		* The operation created.
258		*/
259	1	public function onRollback(callable $callback)
260		{
261	1	return $this->addOperation((new Operation())
262	1	->onRollback($callback));
263		}
264
265		/**
266		* Short-hand notation for adding code to be run on rollback.
267		*
268		* @param mixed $value
269		* The value to add.
270		*
271		* @return Operation
272		* The operation created.
273		*/
274	1	public function addValue($value)
275		{
276	1	return $this->addOperation((new Operation())
277	1	->setValue($value));
278		}
279		}
280

gielfeldt / transactionalphp

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Connection::hasOperation() A

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