RowIterator::current() - Code Metrics - box/spout - Measure and Improve Code Quality continuously with Scrutinizer

RowIterator::current() A
last analyzed 2021-06-07 10:47 UTC

↳ Parent: RowIterator

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

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

<?php

namespace Box\Spout\Reader\ODS;

use Box\Spout\Common\Entity\Cell;
use Box\Spout\Common\Entity\Row;
use Box\Spout\Common\Exception\IOException;
use Box\Spout\Common\Manager\OptionsManagerInterface;
use Box\Spout\Reader\Common\Entity\Options;
use Box\Spout\Reader\Common\Manager\RowManager;
use Box\Spout\Reader\Common\XMLProcessor;
use Box\Spout\Reader\Exception\InvalidValueException;
use Box\Spout\Reader\Exception\IteratorNotRewindableException;
use Box\Spout\Reader\Exception\XMLProcessingException;
use Box\Spout\Reader\IteratorInterface;
use Box\Spout\Reader\ODS\Creator\InternalEntityFactory;
use Box\Spout\Reader\ODS\Helper\CellValueFormatter;
use Box\Spout\Reader\Wrapper\XMLReader;

/**
 * Class RowIterator
 */
class RowIterator implements IteratorInterface
{
    /** Definition of XML nodes names used to parse data */
    const XML_NODE_TABLE = 'table:table';
    const XML_NODE_ROW = 'table:table-row';
    const XML_NODE_CELL = 'table:table-cell';
    const MAX_COLUMNS_EXCEL = 16384;

    /** Definition of XML attribute used to parse data */
    const XML_ATTRIBUTE_NUM_ROWS_REPEATED = 'table:number-rows-repeated';
    const XML_ATTRIBUTE_NUM_COLUMNS_REPEATED = 'table:number-columns-repeated';

    /** @var \Box\Spout\Reader\Wrapper\XMLReader The XMLReader object that will help read sheet's XML data */
    protected $xmlReader;

    /** @var \Box\Spout\Reader\Common\XMLProcessor Helper Object to process XML nodes */
    protected $xmlProcessor;

    /** @var bool Whether empty rows should be returned or skipped */
    protected $shouldPreserveEmptyRows;

    /** @var Helper\CellValueFormatter Helper to format cell values */
    protected $cellValueFormatter;

    /** @var RowManager Manages rows */
    protected $rowManager;

    /** @var InternalEntityFactory Factory to create entities */
    protected $entityFactory;

    /** @var bool Whether the iterator has already been rewound once */
    protected $hasAlreadyBeenRewound = false;

    /** @var Row The currently processed row */
    protected $currentlyProcessedRow;

    /** @var Row Buffer used to store the current row, while checking if there are more rows to read */
    protected $rowBuffer;

    /** @var bool Indicates whether all rows have been read */
    protected $hasReachedEndOfFile = false;

    /** @var int Last row index processed (one-based) */
    protected $lastRowIndexProcessed = 0;

    /** @var int Row index to be processed next (one-based) */
    protected $nextRowIndexToBeProcessed = 1;

    /** @var Cell Last processed cell (because when reading cell at column N+1, cell N is processed) */
    protected $lastProcessedCell;

    /** @var int Number of times the last processed row should be repeated */
    protected $numRowsRepeated = 1;

    /** @var int Number of times the last cell value should be copied to the cells on its right */
    protected $numColumnsRepeated = 1;

    /** @var bool Whether at least one cell has been read for the row currently being processed */
    protected $hasAlreadyReadOneCellInCurrentRow = false;

    /**
     * @param XMLReader $xmlReader XML Reader, positioned on the "<table:table>" element
     * @param OptionsManagerInterface $optionsManager Reader's options manager
     * @param CellValueFormatter $cellValueFormatter Helper to format cell values
     * @param XMLProcessor $xmlProcessor Helper to process XML files
     * @param RowManager $rowManager Manages rows
     * @param InternalEntityFactory $entityFactory Factory to create entities
     */
    public function __construct(
        XMLReader $xmlReader,
        OptionsManagerInterface $optionsManager,
        CellValueFormatter $cellValueFormatter,
        XMLProcessor $xmlProcessor,
        RowManager $rowManager,
        InternalEntityFactory $entityFactory
    ) {
        $this->xmlReader = $xmlReader;
        $this->shouldPreserveEmptyRows = $optionsManager->getOption(Options::SHOULD_PRESERVE_EMPTY_ROWS);
        $this->cellValueFormatter = $cellValueFormatter;
        $this->entityFactory = $entityFactory;
        $this->rowManager = $rowManager;

        // Register all callbacks to process different nodes when reading the XML file
        $this->xmlProcessor = $xmlProcessor;
        $this->xmlProcessor->registerCallback(self::XML_NODE_ROW, XMLProcessor::NODE_TYPE_START, [$this, 'processRowStartingNode']);
        $this->xmlProcessor->registerCallback(self::XML_NODE_CELL, XMLProcessor::NODE_TYPE_START, [$this, 'processCellStartingNode']);
        $this->xmlProcessor->registerCallback(self::XML_NODE_ROW, XMLProcessor::NODE_TYPE_END, [$this, 'processRowEndingNode']);
        $this->xmlProcessor->registerCallback(self::XML_NODE_TABLE, XMLProcessor::NODE_TYPE_END, [$this, 'processTableEndingNode']);
    }

    /**
     * Rewind the Iterator to the first element.
     * NOTE: It can only be done once, as it is not possible to read an XML file backwards.
     * @see http://php.net/manual/en/iterator.rewind.php
     *
     * @throws \Box\Spout\Reader\Exception\IteratorNotRewindableException If the iterator is rewound more than once
     * @return void
     */
    public function rewind()
    {
        // Because sheet and row data is located in the file, we can't rewind both the
        // sheet iterator and the row iterator, as XML file cannot be read backwards.
        // Therefore, rewinding the row iterator has been disabled.
        if ($this->hasAlreadyBeenRewound) {
            throw new IteratorNotRewindableException();
        }

        $this->hasAlreadyBeenRewound = true;
        $this->lastRowIndexProcessed = 0;
        $this->nextRowIndexToBeProcessed = 1;
        $this->rowBuffer = null;
        $this->hasReachedEndOfFile = false;

        $this->next();
    }

    /**
     * Checks if current position is valid
     * @see http://php.net/manual/en/iterator.valid.php
     *
     * @return bool
     */
    public function valid()
    {
        return (!$this->hasReachedEndOfFile);
    }

    /**
     * Move forward to next element. Empty rows will be skipped.
     * @see http://php.net/manual/en/iterator.next.php
     *
     * @throws \Box\Spout\Reader\Exception\SharedStringNotFoundException If a shared string was not found
     * @throws \Box\Spout\Common\Exception\IOException If unable to read the sheet data XML
     * @return void
     */
    public function next()
    {
        if ($this->doesNeedDataForNextRowToBeProcessed()) {
            $this->readDataForNextRow();
        }

        $this->lastRowIndexProcessed++;
    }

    /**
     * Returns whether we need data for the next row to be processed.
     * We DO need to read data if:
     *   - we have not read any rows yet
     *      OR
     *   - the next row to be processed immediately follows the last read row
     *
     * @return bool Whether we need data for the next row to be processed.
     */
    protected function doesNeedDataForNextRowToBeProcessed()
    {
        $hasReadAtLeastOneRow = ($this->lastRowIndexProcessed !== 0);

        return (
            !$hasReadAtLeastOneRow ||
            $this->lastRowIndexProcessed === $this->nextRowIndexToBeProcessed - 1
        );
    }

    /**
     * @throws \Box\Spout\Reader\Exception\SharedStringNotFoundException If a shared string was not found
     * @throws \Box\Spout\Common\Exception\IOException If unable to read the sheet data XML
     * @return void
     */
    protected function readDataForNextRow()
    {
        $this->currentlyProcessedRow = $this->entityFactory->createRow();

        try {
            $this->xmlProcessor->readUntilStopped();
        } catch (XMLProcessingException $exception) {
            throw new IOException("The sheet's data cannot be read. [{$exception->getMessage()}]");
        }

        $this->rowBuffer = $this->currentlyProcessedRow;
    }

    /**
     * @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader object, positioned on a "<table:table-row>" starting node
     * @return int A return code that indicates what action should the processor take next
     */
    protected function processRowStartingNode($xmlReader)
    {
        // Reset data from current row
        $this->hasAlreadyReadOneCellInCurrentRow = false;
        $this->lastProcessedCell = null;
        $this->numColumnsRepeated = 1;
        $this->numRowsRepeated = $this->getNumRowsRepeatedForCurrentNode($xmlReader);

        return XMLProcessor::PROCESSING_CONTINUE;
    }

    /**
     * @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader object, positioned on a "<table:table-cell>" starting node
     * @return int A return code that indicates what action should the processor take next
     */
    protected function processCellStartingNode($xmlReader)
    {
        $currentNumColumnsRepeated = $this->getNumColumnsRepeatedForCurrentNode($xmlReader);

        // NOTE: expand() will automatically decode all XML entities of the child nodes
        $node = $xmlReader->expand();
        $currentCell = $this->getCell($node);

        // process cell N only after having read cell N+1 (see below why)
        if ($this->hasAlreadyReadOneCellInCurrentRow) {
            for ($i = 0; $i < $this->numColumnsRepeated; $i++) {
                $this->currentlyProcessedRow->addCell($this->lastProcessedCell);
            }
        }

        $this->hasAlreadyReadOneCellInCurrentRow = true;
        $this->lastProcessedCell = $currentCell;
        $this->numColumnsRepeated = $currentNumColumnsRepeated;

        return XMLProcessor::PROCESSING_CONTINUE;
    }

    /**
     * @return int A return code that indicates what action should the processor take next
     */
    protected function processRowEndingNode()
    {
        $isEmptyRow = $this->isEmptyRow($this->currentlyProcessedRow, $this->lastProcessedCell);

        // if the fetched row is empty and we don't want to preserve it...
        if (!$this->shouldPreserveEmptyRows && $isEmptyRow) {
            // ... skip it
            return XMLProcessor::PROCESSING_CONTINUE;
        }

        // if the row is empty, we don't want to return more than one cell
        $actualNumColumnsRepeated = (!$isEmptyRow) ? $this->numColumnsRepeated : 1;
        $numCellsInCurrentlyProcessedRow = $this->currentlyProcessedRow->getNumCells();

        // Only add the value if the last read cell is not a trailing empty cell repeater in Excel.
        // The current count of read columns is determined by counting the values in "$this->currentlyProcessedRowData".
        // This is to avoid creating a lot of empty cells, as Excel adds a last empty "<table:table-cell>"
        // with a number-columns-repeated value equals to the number of (supported columns - used columns).
        // In Excel, the number of supported columns is 16384, but we don't want to returns rows with
        // always 16384 cells.
        if (($numCellsInCurrentlyProcessedRow + $actualNumColumnsRepeated) !== self::MAX_COLUMNS_EXCEL) {
            for ($i = 0; $i < $actualNumColumnsRepeated; $i++) {
                $this->currentlyProcessedRow->addCell($this->lastProcessedCell);
            }
        }

        // If we are processing row N and the row is repeated M times,
        // then the next row to be processed will be row (N+M).
        $this->nextRowIndexToBeProcessed += $this->numRowsRepeated;

        // at this point, we have all the data we need for the row
        // so that we can populate the buffer
        return XMLProcessor::PROCESSING_STOP;
    }

    /**
     * @return int A return code that indicates what action should the processor take next
     */
    protected function processTableEndingNode()
    {
        // The closing "</table:table>" marks the end of the file
        $this->hasReachedEndOfFile = true;

        return XMLProcessor::PROCESSING_STOP;
    }

    /**
     * @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader object, positioned on a "<table:table-row>" starting node
     * @return int The value of "table:number-rows-repeated" attribute of the current node, or 1 if attribute missing
     */
    protected function getNumRowsRepeatedForCurrentNode($xmlReader)
    {
        $numRowsRepeated = $xmlReader->getAttribute(self::XML_ATTRIBUTE_NUM_ROWS_REPEATED);

        return ($numRowsRepeated !== null) ? (int) $numRowsRepeated : 1;
    }

    /**
     * @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader object, positioned on a "<table:table-cell>" starting node
     * @return int The value of "table:number-columns-repeated" attribute of the current node, or 1 if attribute missing
     */
    protected function getNumColumnsRepeatedForCurrentNode($xmlReader)
    {
        $numColumnsRepeated = $xmlReader->getAttribute(self::XML_ATTRIBUTE_NUM_COLUMNS_REPEATED);

        return ($numColumnsRepeated !== null) ? (int) $numColumnsRepeated : 1;
    }

    /**
     * Returns the cell with (unescaped) correctly marshalled, cell value associated to the given XML node.
     *
     * @param \DOMNode $node
     * @return Cell The cell set with the associated with the cell
     */
    protected function getCell($node)
    {
        try {
            $cellValue = $this->cellValueFormatter->extractAndFormatNodeValue($node);
            $cell = $this->entityFactory->createCell($cellValue);
        } catch (InvalidValueException $exception) {
            $cell = $this->entityFactory->createCell($exception->getInvalidValue());
            $cell->setType(Cell::TYPE_ERROR);
        }

        return $cell;
    }

    /**
     * After finishing processing each cell, a row is considered empty if it contains
     * no cells or if the last read cell is empty.
     * After finishing processing each cell, the last read cell is not part of the
     * row data yet (as we still need to apply the "num-columns-repeated" attribute).
     *
     * @param Row $currentRow
     * @param Cell $lastReadCell The last read cell
     * @return bool Whether the row is empty
     */
    protected function isEmptyRow($currentRow, $lastReadCell)
    {
        return (
            $this->rowManager->isEmpty($currentRow) &&
            (!isset($lastReadCell) || $lastReadCell->isEmpty())
        );
    }

    /**
     * Return the current element, from the buffer.
     * @see http://php.net/manual/en/iterator.current.php
     *
     * @return Row
     */
    public function current()
    {
        return $this->rowBuffer;
    }

    /**
     * Return the key of the current element
     * @see http://php.net/manual/en/iterator.key.php
     *
     * @return int
     */
    public function key()
    {
        return $this->lastRowIndexProcessed;
    }

    /**
     * Cleans up what was created to iterate over the object.
     *
     * @return void
     */
    public function end()
    {
        $this->xmlReader->close();
    }
}


1		<?php
2
3		namespace Box\Spout\Reader\ODS;
4
5		use Box\Spout\Common\Entity\Cell;
6		use Box\Spout\Common\Entity\Row;
7		use Box\Spout\Common\Exception\IOException;
8		use Box\Spout\Common\Manager\OptionsManagerInterface;
9		use Box\Spout\Reader\Common\Entity\Options;
10		use Box\Spout\Reader\Common\Manager\RowManager;
11		use Box\Spout\Reader\Common\XMLProcessor;
12		use Box\Spout\Reader\Exception\InvalidValueException;
13		use Box\Spout\Reader\Exception\IteratorNotRewindableException;
14		use Box\Spout\Reader\Exception\XMLProcessingException;
15		use Box\Spout\Reader\IteratorInterface;
16		use Box\Spout\Reader\ODS\Creator\InternalEntityFactory;
17		use Box\Spout\Reader\ODS\Helper\CellValueFormatter;
18		use Box\Spout\Reader\Wrapper\XMLReader;
19
20		/**
21		* Class RowIterator
22		*/
23		class RowIterator implements IteratorInterface
24		{
25		/** Definition of XML nodes names used to parse data */
26		const XML_NODE_TABLE = 'table:table';
27		const XML_NODE_ROW = 'table:table-row';
28		const XML_NODE_CELL = 'table:table-cell';
29		const MAX_COLUMNS_EXCEL = 16384;
30
31		/** Definition of XML attribute used to parse data */
32		const XML_ATTRIBUTE_NUM_ROWS_REPEATED = 'table:number-rows-repeated';
33		const XML_ATTRIBUTE_NUM_COLUMNS_REPEATED = 'table:number-columns-repeated';
34
35		/** @var \Box\Spout\Reader\Wrapper\XMLReader The XMLReader object that will help read sheet's XML data */
36		protected $xmlReader;
37
38		/** @var \Box\Spout\Reader\Common\XMLProcessor Helper Object to process XML nodes */
39		protected $xmlProcessor;
40
41		/** @var bool Whether empty rows should be returned or skipped */
42		protected $shouldPreserveEmptyRows;
43
44		/** @var Helper\CellValueFormatter Helper to format cell values */
45		protected $cellValueFormatter;
46
47		/** @var RowManager Manages rows */
48		protected $rowManager;
49
50		/** @var InternalEntityFactory Factory to create entities */
51		protected $entityFactory;
52
53		/** @var bool Whether the iterator has already been rewound once */
54		protected $hasAlreadyBeenRewound = false;
55
56		/** @var Row The currently processed row */
57		protected $currentlyProcessedRow;
58
59		/** @var Row Buffer used to store the current row, while checking if there are more rows to read */
60		protected $rowBuffer;
61
62		/** @var bool Indicates whether all rows have been read */
63		protected $hasReachedEndOfFile = false;
64
65		/** @var int Last row index processed (one-based) */
66		protected $lastRowIndexProcessed = 0;
67
68		/** @var int Row index to be processed next (one-based) */
69		protected $nextRowIndexToBeProcessed = 1;
70
71		/** @var Cell Last processed cell (because when reading cell at column N+1, cell N is processed) */
72		protected $lastProcessedCell;
73
74		/** @var int Number of times the last processed row should be repeated */
75		protected $numRowsRepeated = 1;
76
77		/** @var int Number of times the last cell value should be copied to the cells on its right */
78		protected $numColumnsRepeated = 1;
79
80		/** @var bool Whether at least one cell has been read for the row currently being processed */
81		protected $hasAlreadyReadOneCellInCurrentRow = false;
82
83		/**
84		* @param XMLReader $xmlReader XML Reader, positioned on the "<table:table>" element
85		* @param OptionsManagerInterface $optionsManager Reader's options manager
86		* @param CellValueFormatter $cellValueFormatter Helper to format cell values
87		* @param XMLProcessor $xmlProcessor Helper to process XML files
88		* @param RowManager $rowManager Manages rows
89		* @param InternalEntityFactory $entityFactory Factory to create entities
90		*/
91	29	public function __construct(
92		XMLReader $xmlReader,
93		OptionsManagerInterface $optionsManager,
94		CellValueFormatter $cellValueFormatter,
95		XMLProcessor $xmlProcessor,
96		RowManager $rowManager,
97		InternalEntityFactory $entityFactory
98		) {
99	29	$this->xmlReader = $xmlReader;
100	29	$this->shouldPreserveEmptyRows = $optionsManager->getOption(Options::SHOULD_PRESERVE_EMPTY_ROWS);
101	29	$this->cellValueFormatter = $cellValueFormatter;
102	29	$this->entityFactory = $entityFactory;
103	29	$this->rowManager = $rowManager;
104
105		// Register all callbacks to process different nodes when reading the XML file
106	29	$this->xmlProcessor = $xmlProcessor;
107	29	$this->xmlProcessor->registerCallback(self::XML_NODE_ROW, XMLProcessor::NODE_TYPE_START, [$this, 'processRowStartingNode']);
108	29	$this->xmlProcessor->registerCallback(self::XML_NODE_CELL, XMLProcessor::NODE_TYPE_START, [$this, 'processCellStartingNode']);
109	29	$this->xmlProcessor->registerCallback(self::XML_NODE_ROW, XMLProcessor::NODE_TYPE_END, [$this, 'processRowEndingNode']);
110	29	$this->xmlProcessor->registerCallback(self::XML_NODE_TABLE, XMLProcessor::NODE_TYPE_END, [$this, 'processTableEndingNode']);
111	29	}
112
113		/**
114		* Rewind the Iterator to the first element.
115		* NOTE: It can only be done once, as it is not possible to read an XML file backwards.
116		* @see http://php.net/manual/en/iterator.rewind.php
117		*
118		* @throws \Box\Spout\Reader\Exception\IteratorNotRewindableException If the iterator is rewound more than once
119		* @return void
120		*/
121	26	public function rewind()
122		{
123		// Because sheet and row data is located in the file, we can't rewind both the
124		// sheet iterator and the row iterator, as XML file cannot be read backwards.
125		// Therefore, rewinding the row iterator has been disabled.
126	26	if ($this->hasAlreadyBeenRewound) {
127	1	throw new IteratorNotRewindableException();
128		}
129
130	26	$this->hasAlreadyBeenRewound = true;
131	26	$this->lastRowIndexProcessed = 0;
132	26	$this->nextRowIndexToBeProcessed = 1;
133	26	$this->rowBuffer = null;
134	26	$this->hasReachedEndOfFile = false;
135
136	26	$this->next();
137	26	}
138
139		/**
140		* Checks if current position is valid
141		* @see http://php.net/manual/en/iterator.valid.php
142		*
143		* @return bool
144		*/
145	26	public function valid()
146		{
147	26	return (!$this->hasReachedEndOfFile);
148		}
149
150		/**
151		* Move forward to next element. Empty rows will be skipped.
152		* @see http://php.net/manual/en/iterator.next.php
153		*
154		* @throws \Box\Spout\Reader\Exception\SharedStringNotFoundException If a shared string was not found
155		* @throws \Box\Spout\Common\Exception\IOException If unable to read the sheet data XML
156		* @return void
157		*/
158	26	public function next()
159		{
160	26	if ($this->doesNeedDataForNextRowToBeProcessed()) {
161	26	$this->readDataForNextRow();
162		}
163
164	26	$this->lastRowIndexProcessed++;
165	26	}
166
167		/**
168		* Returns whether we need data for the next row to be processed.
169		* We DO need to read data if:
170		* - we have not read any rows yet
171		* OR
172		* - the next row to be processed immediately follows the last read row
173		*
174		* @return bool Whether we need data for the next row to be processed.
175		*/
176	26	protected function doesNeedDataForNextRowToBeProcessed()
177		{
178	26	$hasReadAtLeastOneRow = ($this->lastRowIndexProcessed !== 0);
179
180		return (
181	26	!$hasReadAtLeastOneRow \|\|
182	26	$this->lastRowIndexProcessed === $this->nextRowIndexToBeProcessed - 1
183		);
184		}
185
186		/**
187		* @throws \Box\Spout\Reader\Exception\SharedStringNotFoundException If a shared string was not found
188		* @throws \Box\Spout\Common\Exception\IOException If unable to read the sheet data XML
189		* @return void
190		*/
191	26	protected function readDataForNextRow()
192		{
193	26	$this->currentlyProcessedRow = $this->entityFactory->createRow();
194
195		try {
196	26	$this->xmlProcessor->readUntilStopped();
197		} catch (XMLProcessingException $exception) {
198		throw new IOException("The sheet's data cannot be read. [{$exception->getMessage()}]");
199		}
200
201	26	$this->rowBuffer = $this->currentlyProcessedRow;
202	26	}
203
204		/**
205		* @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader object, positioned on a "<table:table-row>" starting node
206		* @return int A return code that indicates what action should the processor take next
207		*/
208	26	protected function processRowStartingNode($xmlReader)
209		{
210		// Reset data from current row
211	26	$this->hasAlreadyReadOneCellInCurrentRow = false;
212	26	$this->lastProcessedCell = null;
213	26	$this->numColumnsRepeated = 1;
214	26	$this->numRowsRepeated = $this->getNumRowsRepeatedForCurrentNode($xmlReader);
215
216	26	return XMLProcessor::PROCESSING_CONTINUE;
217		}
218
219		/**
220		* @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader object, positioned on a "<table:table-cell>" starting node
221		* @return int A return code that indicates what action should the processor take next
222		*/
223	26	protected function processCellStartingNode($xmlReader)
224		{
225	26	$currentNumColumnsRepeated = $this->getNumColumnsRepeatedForCurrentNode($xmlReader);
226
227		// NOTE: expand() will automatically decode all XML entities of the child nodes
228	26	$node = $xmlReader->expand();
229	26	$currentCell = $this->getCell($node);
230
231		// process cell N only after having read cell N+1 (see below why)
232	26	if ($this->hasAlreadyReadOneCellInCurrentRow) {
233	20	for ($i = 0; $i < $this->numColumnsRepeated; $i++) {
234	20	$this->currentlyProcessedRow->addCell($this->lastProcessedCell);
235		}
236		}
237
238	26	$this->hasAlreadyReadOneCellInCurrentRow = true;
239	26	$this->lastProcessedCell = $currentCell;
240	26	$this->numColumnsRepeated = $currentNumColumnsRepeated;
241
242	26	return XMLProcessor::PROCESSING_CONTINUE;
243		}
244
245		/**
246		* @return int A return code that indicates what action should the processor take next
247		*/
248	26	protected function processRowEndingNode()
249		{
250	26	$isEmptyRow = $this->isEmptyRow($this->currentlyProcessedRow, $this->lastProcessedCell);
251
252		// if the fetched row is empty and we don't want to preserve it...
253	26	if (!$this->shouldPreserveEmptyRows && $isEmptyRow) {
254		// ... skip it
255	5	return XMLProcessor::PROCESSING_CONTINUE;
256		}
257
258		// if the row is empty, we don't want to return more than one cell
259	25	$actualNumColumnsRepeated = (!$isEmptyRow) ? $this->numColumnsRepeated : 1;
260	25	$numCellsInCurrentlyProcessedRow = $this->currentlyProcessedRow->getNumCells();
261
262		// Only add the value if the last read cell is not a trailing empty cell repeater in Excel.
263		// The current count of read columns is determined by counting the values in "$this->currentlyProcessedRowData".
264		// This is to avoid creating a lot of empty cells, as Excel adds a last empty "<table:table-cell>"
265		// with a number-columns-repeated value equals to the number of (supported columns - used columns).
266		// In Excel, the number of supported columns is 16384, but we don't want to returns rows with
267		// always 16384 cells.
268	25	if (($numCellsInCurrentlyProcessedRow + $actualNumColumnsRepeated) !== self::MAX_COLUMNS_EXCEL) {
269	23	for ($i = 0; $i < $actualNumColumnsRepeated; $i++) {
270	23	$this->currentlyProcessedRow->addCell($this->lastProcessedCell);
271		}
272		}
273
274		// If we are processing row N and the row is repeated M times,
275		// then the next row to be processed will be row (N+M).
276	25	$this->nextRowIndexToBeProcessed += $this->numRowsRepeated;
277
278		// at this point, we have all the data we need for the row
279		// so that we can populate the buffer
280	25	return XMLProcessor::PROCESSING_STOP;
281		}
282
283		/**
284		* @return int A return code that indicates what action should the processor take next
285		*/
286	24	protected function processTableEndingNode()
287		{
288		// The closing "</table:table>" marks the end of the file
289	24	$this->hasReachedEndOfFile = true;
290
291	24	return XMLProcessor::PROCESSING_STOP;
292		}
293
294		/**
295		* @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader object, positioned on a "<table:table-row>" starting node
296		* @return int The value of "table:number-rows-repeated" attribute of the current node, or 1 if attribute missing
297		*/
298	26	protected function getNumRowsRepeatedForCurrentNode($xmlReader)
299		{
300	26	$numRowsRepeated = $xmlReader->getAttribute(self::XML_ATTRIBUTE_NUM_ROWS_REPEATED);
301
302	26	return ($numRowsRepeated !== null) ? (int) $numRowsRepeated : 1;
303		}
304
305		/**
306		* @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader object, positioned on a "<table:table-cell>" starting node
307		* @return int The value of "table:number-columns-repeated" attribute of the current node, or 1 if attribute missing
308		*/
309	26	protected function getNumColumnsRepeatedForCurrentNode($xmlReader)
310		{
311	26	$numColumnsRepeated = $xmlReader->getAttribute(self::XML_ATTRIBUTE_NUM_COLUMNS_REPEATED);
312
313	26	return ($numColumnsRepeated !== null) ? (int) $numColumnsRepeated : 1;
314		}
315
316		/**
317		* Returns the cell with (unescaped) correctly marshalled, cell value associated to the given XML node.
318		*
319		* @param \DOMNode $node
320		* @return Cell The cell set with the associated with the cell
321		*/
322	26	protected function getCell($node)
323		{
324		try {
325	26	$cellValue = $this->cellValueFormatter->extractAndFormatNodeValue($node);
326	25	$cell = $this->entityFactory->createCell($cellValue);
327	1	} catch (InvalidValueException $exception) {
328	1	$cell = $this->entityFactory->createCell($exception->getInvalidValue());
329	1	$cell->setType(Cell::TYPE_ERROR);
330		}
331
332	26	return $cell;
333		}
334
335		/**
336		* After finishing processing each cell, a row is considered empty if it contains
337		* no cells or if the last read cell is empty.
338		* After finishing processing each cell, the last read cell is not part of the
339		* row data yet (as we still need to apply the "num-columns-repeated" attribute).
340		*
341		* @param Row $currentRow
342		* @param Cell $lastReadCell The last read cell
343		* @return bool Whether the row is empty
344		*/
345	26	protected function isEmptyRow($currentRow, $lastReadCell)
346		{
347		return (
348	26	$this->rowManager->isEmpty($currentRow) &&
349	26	(!isset($lastReadCell) \|\| $lastReadCell->isEmpty())
350		);
351		}
352
353		/**
354		* Return the current element, from the buffer.
355		* @see http://php.net/manual/en/iterator.current.php
356		*
357		* @return Row
358		*/
359	25	public function current()
360		{
361	25	return $this->rowBuffer;
362		}
363
364		/**
365		* Return the key of the current element
366		* @see http://php.net/manual/en/iterator.key.php
367		*
368		* @return int
369		*/
370	23	public function key()
371		{
372	23	return $this->lastRowIndexProcessed;
373		}
374
375		/**
376		* Cleans up what was created to iterate over the object.
377		*
378		* @return void
379		*/
380		public function end()
381		{
382		$this->xmlReader->close();
383		}
384		}
385

box / spout

RowIterator::current() A last analyzed 2021-06-07 10:47 UTC

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RowIterator::current() A
last analyzed 2021-06-07 10:47 UTC