Added a json export class for exporting ZugferdDocument as a json str…

…ing, a json object or a pretty printed json string, Added an example for this feature

examples/En16931ReaderPdfWithJsonExport.php

@@ -0,0 +1,21 @@
+<?php
+
+use horstoeko\zugferd\ZugferdDocumentJsonExporter;
+use horstoeko\zugferd\ZugferdDocumentPdfReader;
+
+require getcwd() . "/../vendor/autoload.php";
+
+$document = ZugferdDocumentPdfReader::readAndGuessFromFile(dirname(__FILE__) . "/invoice_1.pdf");
+
+$document->getDocumentInformation($documentno, $documenttypecode, $documentdate, $invoiceCurrency, $taxCurrency, $documentname, $documentlanguage, $effectiveSpecifiedPeriod);
+
+$documentJsonExporter = new ZugferdDocumentJsonExporter($document);
+
+echo $documentJsonExporter->toPrettyJsonString();
+echo "\r\n\r\n";
+
+$jsonObject = $documentJsonExporter->toJsonObject();
+
+var_dump($jsonObject);
+
+echo "\r\n\r\n";

src/ZugferdDocumentJsonExporter.php

@@ -0,0 +1,132 @@
+<?php
+
+/**
+ * This file is a part of horstoeko/zugferd.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace horstoeko\zugferd;
+
+use \GoetasWebservices\Xsd\XsdToPhpRuntime\Jms\Handler\BaseTypesHandler;
+use \GoetasWebservices\Xsd\XsdToPhpRuntime\Jms\Handler\XmlSchemaDateHandler;
+use \horstoeko\zugferd\jms\ZugferdTypesHandler;
+use \JMS\Serializer\Handler\HandlerRegistryInterface;
+use \JMS\Serializer\SerializerBuilder;
+use \JMS\Serializer\SerializerInterface;
+use RuntimeException;
+
+/**
+ * Class representing the export of a zugferd document
+ * in JSON format
+ *
+ * @category Zugferd
+ * @package  Zugferd
+ * @author   D. Erling <horstoeko@erling.com.de>
+ * @license  https://opensource.org/licenses/MIT MIT
+ * @link     https://github.com/horstoeko/zugferd
+ */
+class ZugferdDocumentJsonExporter
+{
+    /**
+     * The instance to the zugferd document
+     *
+     * @var ZugferdDocument
+     */
+    private $document = null;
+
+    /**
+     * @internal
+     * Serializer builder
+     * @var SerializerBuilder
+     */
+    private $serializerBuilder;
+
+    /**
+     * @internal
+     * Serializer
+     * @var SerializerInterface
+     */
+    private $serializer;
+
+    /**
+     * Constructor
+     *
+     * @param ZugferdDocument $document
+     *
+     * @codeCoverageIgnore
+     */
+    public function __construct(ZugferdDocument $document)
+    {
+        $this->document = $document;
+        $this->initSerialzer();
+    }
+
+    /**
+     * Returns the invoice object as a json string
+     *
+     * @return string
+     */
+    public function toJsonString(): string
+    {
+        return $this->serializer->serialize($this->document->getInvoiceObject(), 'json');
+    }
+
+    /**
+     * Returns the invoice object as a json object
+     *
+     * @return string
+     * @throws RuntimeException
+     */
+    public function toJsonObject(): object
+    {
+        $jsonObject = json_decode($this->toJsonString());
+
+        if ($jsonObject === null) {
+            throw new \RuntimeException("Invalid JSON");
+        }
+
+        return $jsonObject;
+    }
+
+    /**
+     * Returns the invoice object as a pretty printed json string
+     *
+     * @return string|boolean
+     */
+    public function toPrettyJsonString()
+    {
+        return json_encode($this->toJsonObject(), JSON_PRETTY_PRINT);
+    }
+
+    /**
+     * @internal
+     *
+     * Build the internal serialzer
+     *
+     * @return ZugferdDocumentJsonExporter
+     *
+     * @codeCoverageIgnore
+     */
+    private function initSerialzer(): ZugferdDocumentJsonExporter
+    {
+        $serializerBuilder = SerializerBuilder::create();
+        $this->serializerBuilder = $serializerBuilder;
+        $this->serializerBuilder->addMetadataDir(dirname(__FILE__) . '/yaml/' . $this->document->profiledef["name"] . '/qdt', 'horstoeko\zugferd\entities\\' . $this->document->profiledef["name"] . '\qdt');
+        $this->serializerBuilder->addMetadataDir(dirname(__FILE__) . '/yaml/' . $this->document->profiledef["name"] . '/ram', 'horstoeko\zugferd\entities\\' . $this->document->profiledef["name"] . '\ram');
+        $this->serializerBuilder->addMetadataDir(dirname(__FILE__) . '/yaml/' . $this->document->profiledef["name"] . '/rsm', 'horstoeko\zugferd\entities\\' . $this->document->profiledef["name"] . '\rsm');
+        $this->serializerBuilder->addMetadataDir(dirname(__FILE__) . '/yaml/' . $this->document->profiledef["name"] . '/udt', 'horstoeko\zugferd\entities\\' . $this->document->profiledef["name"] . '\udt');
+        $this->serializerBuilder->addDefaultListeners();
+        $this->serializerBuilder->configureHandlers(function (HandlerRegistryInterface $handler) use ($serializerBuilder) {
+            $serializerBuilder->addDefaultHandlers();
+            $handler->registerSubscribingHandler(new BaseTypesHandler());
+            $handler->registerSubscribingHandler(new XmlSchemaDateHandler());
+            $handler->registerSubscribingHandler(new ZugferdTypesHandler());
+        });
+
+        $this->serializer = $this->serializerBuilder->build();
+
+        return $this;
+    }
+}