v2: Updates

* Simplifies & beautifies everything
* Introduces a new Class system.
* Errors are defaulted to AWS's handler.
* New function names & more efficient handling.
* Should fix a majority of the errors.

Please read the README for more!

aws/Aws/Api/ErrorParser/AbstractErrorParser.php

@@ -0,0 +1,95 @@
+<?php
+namespace Aws\Api\ErrorParser;
+
+use Aws\Api\Parser\MetadataParserTrait;
+use Aws\Api\Parser\PayloadParserTrait;
+use Aws\Api\Service;
+use Aws\Api\StructureShape;
+use Aws\CommandInterface;
+use Psr\Http\Message\ResponseInterface;
+
+abstract class AbstractErrorParser
+{
+    use MetadataParserTrait;
+    use PayloadParserTrait;
+
+    /**
+     * @var Service
+     */
+    protected $api;
+
+    /**
+     * @param Service $api
+     */
+    public function __construct(Service $api = null)
+    {
+        $this->api = $api;
+    }
+
+    abstract protected function payload(
+        ResponseInterface $response,
+        StructureShape $member
+    );
+
+    protected function extractPayload(
+        StructureShape $member,
+        ResponseInterface $response
+    ) {
+        if ($member instanceof StructureShape) {
+            // Structure members parse top-level data into a specific key.
+            return $this->payload($response, $member);
+        } else {
+            // Streaming data is just the stream from the response body.
+            return $response->getBody();
+        }
+    }
+
+    protected function populateShape(
+        array &$data,
+        ResponseInterface $response,
+        CommandInterface $command = null
+    ) {
+        $data['body'] = [];
+
+        if (!empty($command) && !empty($this->api)) {
+
+            // If modeled error code is indicated, check for known error shape
+            if (!empty($data['code'])) {
+
+                $errors = $this->api->getOperation($command->getName())->getErrors();
+                foreach ($errors as $key => $error) {
+
+                    // If error code matches a known error shape, populate the body
+                    if ($data['code'] == $error['name']
+                        && $error instanceof StructureShape
+                    ) {
+                        $modeledError = $error;
+                        $data['body'] = $this->extractPayload(
+                            $modeledError,
+                            $response
+                        );
+                        $data['error_shape'] = $modeledError;
+
+                        foreach ($error->getMembers() as $name => $member) {
+                            switch ($member['location']) {
+                                case 'header':
+                                    $this->extractHeader($name, $member, $response, $data['body']);
+                                    break;
+                                case 'headers':
+                                    $this->extractHeaders($name, $member, $response, $data['body']);
+                                    break;
+                                case 'statusCode':
+                                    $this->extractStatus($name, $response, $data['body']);
+                                    break;
+                            }
+                        }
+
+                        break;
+                    }
+                }
+            }
+        }
+
+        return $data;
+    }
+}