Merge pull request #245 from jojo1981/feature/ref-resolver

#240 Fix RefResolver and make it compatible with draft-04

README.md

@@ -27,14 +27,12 @@ See [json-schema](http://json-schema.org/) for more details.
 <?php
 
 // Get the schema and data as objects
-$retriever = new JsonSchema\Uri\UriRetriever;
-$schema = $retriever->retrieve('file://' . realpath('schema.json'));
-$data = json_decode(file_get_contents('data.json'));
-
 // If you use $ref or if you are unsure, resolve those references here
 // This modifies the $schema object
-$refResolver = new JsonSchema\RefResolver($retriever);
-$refResolver->resolve($schema, 'file://' . __DIR__);
+$refResolver = new JsonSchema\RefResolver(new JsonSchema\Uri\UriRetriever(), new JsonSchema\Uri\UriResolver());
+$schema = $refResolver->resolve('file://' . realpath('schema.json'));
+
+$data = json_decode(file_get_contents('data.json'));
 
 // Validate
 $validator = new JsonSchema\Validator();

bin/validate-json

@@ -200,22 +200,14 @@ try {
         echo $urlSchema . "\n";
         exit();
     }
-
-    $schema = $retriever->retrieve($urlSchema);
-    if ($schema === null) {
-        echo "Error loading JSON schema file\n";
-        echo $urlSchema . "\n";
-        showJsonError();
-        exit(2);
-    }
 } catch (Exception $e) {
     echo "Error loading JSON schema file\n";
     echo $urlSchema . "\n";
     echo $e->getMessage() . "\n";
     exit(2);
 }
-$refResolver = new JsonSchema\RefResolver($retriever);
-$refResolver->resolve($schema, $urlSchema);
+$refResolver = new JsonSchema\RefResolver($retriever, $resolver);
+$schema = $refResolver->resolve($urlSchema);
 
 if (isset($arOptions['--dump-schema'])) {
     $options = defined('JSON_PRETTY_PRINT') ? JSON_PRETTY_PRINT : 0;
@@ -242,4 +234,3 @@ try {
     echo "Error code: " . $e->getCode() . "\n";
     exit(24);
 }
-?>

src/JsonSchema/Constraints/ObjectConstraint.php

@@ -159,13 +159,13 @@ protected function getProperty($element, $property, $fallback = null)
      */
     protected function validateMinMaxConstraint($element, $objectDefinition, $path) {
         // Verify minimum number of properties
-        if (isset($objectDefinition->minProperties)) {
+        if (isset($objectDefinition->minProperties) && !is_object($objectDefinition->minProperties)) {
             if (count(get_object_vars($element)) < $objectDefinition->minProperties) {
                 $this->addError($path, "Must contain a minimum of " . $objectDefinition->minProperties . " properties", 'minProperties', array('minProperties' => $objectDefinition->minProperties,));
             }
         }
         // Verify maximum number of properties
-        if (isset($objectDefinition->maxProperties)) {
+        if (isset($objectDefinition->maxProperties) && !is_object($objectDefinition->maxProperties)) {
             if (count(get_object_vars($element)) > $objectDefinition->maxProperties) {
                 $this->addError($path, "Must contain no more than " . $objectDefinition->maxProperties . " properties", 'maxProperties', array('maxProperties' => $objectDefinition->maxProperties,));
             }

src/JsonSchema/Entity/JsonPointer.php

@@ -0,0 +1,118 @@
+<?php
+
+/*
+ * This file is part of the JsonSchema package.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace JsonSchema\Entity;
+
+/**
+ * @package JsonSchema\Entity
+ * @author Joost Nijhuis <[email protected]>
+ */
+class JsonPointer
+{
+    /** @var string */
+    private $filename;
+
+    /** @var string[] */
+    private $propertyPaths = array();
+
+    /**
+     * @param string $value
+     * @throws \InvalidArgumentException when $value is not a string
+     */
+    public function __construct($value)
+    {
+        if (!is_string($value)) {
+            throw new \InvalidArgumentException('Ref value must be a string');
+        }
+
+        $splitRef = explode('#', $value, 2);
+        $this->filename = $splitRef[0];
+        if (array_key_exists(1, $splitRef)) {
+            $this->propertyPaths = $this->decodePropertyPaths($splitRef[1]);
+        }
+    }
+
+    /**
+     * @param string $propertyPathString
+     * @return string[]
+     */
+    private function decodePropertyPaths($propertyPathString)
+    {
+        $paths = array();
+        foreach (explode('/', trim($propertyPathString, '/')) as $path) {
+            $path = $this->decodePath($path);
+            if (is_string($path) && '' !== $path) {
+                $paths[] = $path;
+            }
+        }
+
+        return $paths;
+    }
+
+    /**
+     * @return array
+     */
+    private function encodePropertyPaths()
+    {
+        return array_map(
+            array($this, 'encodePath'),
+            $this->getPropertyPaths()
+        );
+    }
+
+    /**
+     * @param string $path
+     * @return string
+     */
+    private function decodePath($path)
+    {
+        return strtr($path, array('~1' => '/', '~0' => '~', '%25' => '%'));
+    }
+
+    /**
+     * @param string $path
+     * @return string
+     */
+    private function encodePath($path)
+    {
+        return strtr($path, array('/' => '~1', '~' => '~0', '%' => '%25'));
+    }
+
+    /**
+     * @return string
+     */
+    public function getFilename()
+    {
+        return $this->filename;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getPropertyPaths()
+    {
+        return $this->propertyPaths;
+    }
+
+    /**
+     * @return string
+     */
+    public function getPropertyPathAsString()
+    {
+        return rtrim('#/' . implode('/', $this->encodePropertyPaths()), '/');
+    }
+
+    /**
+     * @return string
+     */
+    public function __toString()
+    {
+        return $this->getFilename() . $this->getPropertyPathAsString();
+    }
+}

src/JsonSchema/Exception/UnresolvableJsonPointerException.php

@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of the JsonSchema package.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace JsonSchema\Exception;
+
+/**
+ * @package JsonSchema\Exception
+ * @author Joost Nijhuis <[email protected]>
+ */
+class UnresolvableJsonPointerException extends \InvalidArgumentException
+{
+}

src/JsonSchema/Iterator/ObjectIterator.php

@@ -0,0 +1,147 @@
+<?php
+
+/*
+ * This file is part of the JsonSchema package.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace JsonSchema\Iterator;
+
+/**
+ * @package JsonSchema\Iterator
+ * @author Joost Nijhuis <[email protected]>
+ */
+class ObjectIterator implements \Iterator, \Countable
+{
+    /** @var object */
+    private $object;
+
+    /** @var int */
+    private $position = 0;
+
+    /** @var array */
+    private $data = array();
+
+    /** @var bool */
+    private $initialized = false;
+
+    /**
+     * @param object $object
+     */
+    public function __construct($object)
+    {
+        $this->object = $object;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function current()
+    {
+        $this->initialize();
+
+        return $this->data[$this->position];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function next()
+    {
+        $this->initialize();
+        $this->position++;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function key()
+    {
+        $this->initialize();
+
+        return $this->position;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function valid()
+    {
+        $this->initialize();
+
+        return isset($this->data[$this->position]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function rewind()
+    {
+        $this->initialize();
+        $this->position = 0;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function count()
+    {
+        $this->initialize();
+
+        return count($this->data);
+    }
+
+    /**
+     * Initializer
+     */
+    private function initialize()
+    {
+        if (!$this->initialized) {
+            $this->data = $this->buildDataFromObject($this->object);
+            $this->initialized = true;
+        }
+    }
+
+    /**
+     * @param object $object
+     * @return array
+     */
+    private function buildDataFromObject($object)
+    {
+        $result = array();
+
+        $stack = new \SplStack();
+        $stack->push($object);
+
+        while (!$stack->isEmpty()) {
+
+            $current = $stack->pop();
+            if (is_object($current)) {
+                array_push($result, $current);
+            }
+
+            foreach ($this->getDataFromItem($current) as $propertyName => $propertyValue) {
+                if (is_object($propertyValue) || is_array($propertyValue)) {
+                    $stack->push($propertyValue);
+                }
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * @param object|array $item
+     * @return array
+     */
+    private function getDataFromItem($item)
+    {
+        if (!is_object($item) && !is_array($item)) {
+            return array();
+        }
+
+        return is_object($item) ? get_object_vars($item) : $item;
+    }
+}