Updated required changes

src/Api/Monetization/Controller/AcceptedRatePlanController.php

@@ -72,6 +72,14 @@ public function getPaginatedAcceptedRatePlanList(int $limit = null, int $page =
         return $this->getAcceptedRatePlans($query_params);
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getAllEligibleRatePlans(): array
+    {
+        return $this->getEligibleRatePlan();
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -195,4 +203,31 @@ private function getAcceptedRatePlans(array $query_params = []): array
 
         return $entities;
     }
+
+    /**
+     * Helper function for listing eligible rate plans.
+     *
+     * @param array $query_params
+     *   Additional query parameters.
+     *
+     * @return \Apigee\Edge\Api\Monetization\Entity\AcceptedRatePlanInterface[]
+     *
+     * @psalm-suppress PossiblyNullArrayOffset - id() does not return null here.
+     */
+    private function getEligibleRatePlan(): array
+    {
+        $entities = [];
+
+        foreach ($this->getRawList($this->getEligibleRatePlanEndpoint()) as $item) {
+            /** @var \Apigee\Edge\Entity\EntityInterface $tmp */
+            $tmp = $this->getEntitySerializer()->denormalize(
+                $item,
+                AcceptedRatePlanInterface::class,
+                'json'
+            );
+            $entities[$tmp->id()] = $tmp;
+        }
+
+        return $entities;
+    }
 }

src/Api/Monetization/Controller/AcceptedRatePlanControllerInterface.php

@@ -41,6 +41,13 @@ interface AcceptedRatePlanControllerInterface extends EntityControllerInterface,
      */
     public function getAllAcceptedRatePlans(): array;
 
+    /**
+     * Gets all eligible rate plans.
+     *
+     * @return \Apigee\Edge\Api\Monetization\Entity\AcceptedRatePlanInterface[]
+     */
+    public function getAllEligibleRatePlans(): array;
+
     /**
      * Gets accepted rate plans in the provided range.
      *

src/Api/Monetization/Denormalizer/CompanyEligibleRatePlanDenormalizer.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace Apigee\Edge\Api\Monetization\Denormalizer;
+
+use Apigee\Edge\Api\Monetization\Entity\CompanyEligibleRatePlan;
+use Apigee\Edge\Api\Monetization\NameConverter\CompanyEligibleRatePlanNameConverter;
+use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
+use Symfony\Component\PropertyInfo\PropertyTypeExtractorInterface;
+use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface;
+use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
+
+class CompanyEligibleRatePlanDenormalizer extends AcceptedRatePlanDenormalizer
+{
+    /**
+     * Fully qualified class name of the company accepted rate plan entity.
+     *
+     * @var string
+     */
+    protected $companyEligibleRatePlanClass = CompanyEligibleRatePlan::class;
+
+    /**
+     * CompanyEligibleRatePlanDenormalizer constructor.
+     *
+     * @param \Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface|null $classMetadataFactory
+     * @param \Symfony\Component\Serializer\NameConverter\NameConverterInterface|null $nameConverter
+     * @param \Symfony\Component\PropertyAccess\PropertyAccessorInterface|null $propertyAccessor
+     * @param \Symfony\Component\PropertyInfo\PropertyTypeExtractorInterface|null $propertyTypeExtractor
+     */
+    public function __construct(?ClassMetadataFactoryInterface $classMetadataFactory = null, ?NameConverterInterface $nameConverter = null, ?PropertyAccessorInterface $propertyAccessor = null, ?PropertyTypeExtractorInterface $propertyTypeExtractor = null)
+    {
+        $nameConverter = $nameConverter ?? new CompanyEligibleRatePlanNameConverter();
+        parent::__construct($classMetadataFactory, $nameConverter, $propertyAccessor, $propertyTypeExtractor);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function denormalize($data, $type, $format = null, array $context = [])
+    {
+        return parent::denormalize($data, $this->companyEligibleRatePlanClass, $format, $context);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsDenormalization($data, $type, $format = null)
+    {
+        if (parent::supportsDenormalization($data, $type, $format)) {
+            return $data->developer->isCompany;
+        }
+
+        return false;
+    }
+}

src/Api/Monetization/Entity/CompanyEligibleRatePlan.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Apigee\Edge\Api\Monetization\Entity;
+
+use Apigee\Edge\Api\Monetization\Entity\Property\CompanyPropertyAwareTrait;
+
+/**
+ * Represents an accepted rate plan by a company.
+ */
+class CompanyEligibleRatePlan extends AcceptedRatePlan implements CompanyEligibleRatePlanInterface
+{
+    use CompanyPropertyAwareTrait;
+}

src/Api/Monetization/Entity/CompanyEligibleRatePlanInterface.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace Apigee\Edge\Api\Monetization\Entity;
+
+use Apigee\Edge\Api\Monetization\Entity\Property\CompanyPropertyInterface;
+
+interface CompanyEligibleRatePlanInterface extends AcceptedRatePlanInterface, CompanyPropertyInterface
+{
+}

src/Api/Monetization/NameConverter/CompanyEligibleRatePlanNameConverter.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Apigee\Edge\Api\Monetization\NameConverter;
+
+use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
+
+/**
+ * Converts "developer" to "company" on those accepted rate plans that
+ * belongs to a company. This is only used in the
+ * CompanyEligibleRatePlanController.
+ *
+ * @see \Apigee\Edge\Api\Monetization\Entity\CompanyEligibleRatePlan
+ */
+class CompanyEligibleRatePlanNameConverter extends NameConverterBase implements NameConverterInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function getExternalToLocalMapping(): array
+    {
+        return [
+                'developer' => 'company',
+            ];
+    }
+}

src/Api/Monetization/Normalizer/CompanyEligibleRatePlanNormalizer.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Apigee\Edge\Api\Monetization\Normalizer;
+
+use Apigee\Edge\Api\Monetization\Entity\CompanyEligibleRatePlanInterface;
+use Apigee\Edge\Api\Monetization\NameConverter\CompanyEligibleRatePlanNameConverter;
+use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
+use Symfony\Component\PropertyInfo\PropertyTypeExtractorInterface;
+use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface;
+use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
+
+class CompanyEligibleRatePlanNormalizer extends AcceptedRatePlanNormalizer
+{
+    /**
+     * CompanyEligibleRatePlanNormalizer constructor.
+     *
+     * @param \Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface|null $classMetadataFactory
+     * @param \Symfony\Component\Serializer\NameConverter\NameConverterInterface|null $nameConverter
+     * @param \Symfony\Component\PropertyAccess\PropertyAccessorInterface|null $propertyAccessor
+     * @param \Symfony\Component\PropertyInfo\PropertyTypeExtractorInterface|null $propertyTypeExtractor
+     */
+    public function __construct(?ClassMetadataFactoryInterface $classMetadataFactory = null, ?NameConverterInterface $nameConverter = null, ?PropertyAccessorInterface $propertyAccessor = null, ?PropertyTypeExtractorInterface $propertyTypeExtractor = null)
+    {
+        $nameConverter = $nameConverter ?? new CompanyEligibleRatePlanNameConverter();
+        parent::__construct($classMetadataFactory, $nameConverter, $propertyAccessor, $propertyTypeExtractor);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsNormalization($data, $format = null)
+    {
+        return $data instanceof CompanyEligibleRatePlanInterface;
+    }
+}