add translate model premium feature (GoogleCloudPlatform#324)

Author: bshaffer

translate/api/src/TranslateCommand.php

@@ -52,13 +52,25 @@ protected function configure()
                 InputOption::VALUE_REQUIRED,
                 'The ISO 639-1 code of language to translate to, eg. \'en\'.'
             )
+            ->addOption(
+                'model',
+                null,
+                InputOption::VALUE_REQUIRED,
+                'The model to use, "base" for standard and "nmt" for premium.'
+            )
         ;
     }
 
     protected function execute(InputInterface $input, OutputInterface $output)
     {
         $text = $input->getArgument('text');
         $targetLanguage = $input->getOption('target-language');
-        require(__DIR__ . '/snippets/translate.php');
+        $model = $input->getOption('model');
+
+        if ($model) {
+            require(__DIR__ . '/snippets/translate_with_model.php');
+        } else {
+            require(__DIR__ . '/snippets/translate.php');
+        }
     }
 }

translate/api/src/snippets/translate_with_model.php

@@ -0,0 +1,36 @@
+<?php
+/**
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+namespace Google\Cloud\Samples\Translate;
+
+// [START translate_text_with_model]
+use Google\Cloud\Translate\TranslateClient;
+
+// $text = 'The text to translate.';
+// $targetLanguage = 'ja';  // Which language to translate to?
+// $model = 'nmt';  // "base" for standard edition, "nmt" for premium
+
+$translate = new TranslateClient();
+$result = $translate->translate($text, [
+    'target' => $targetLanguage,
+    'model'  => $model,
+]);
+print("Source language: $result[source]\n");
+print("Translation: $result[text]\n");
+print("Model: $result[model]\n");
+// [END translate_text_with_model]

translate/api/test/CommandTest.php

@@ -59,6 +59,26 @@ public function testTranslateBadLanguage()
         );
     }
 
+    public function testTranslateWithModel()
+    {
+        $application = new Application();
+        $application->add(new TranslateCommand());
+        $commandTester = new CommandTester($application->get('translate'));
+        $commandTester->execute(
+            [
+                'text' => 'Hello.',
+                '-t' => 'ja',
+                '--model' => 'nmt',
+            ],
+            ['interactive' => false]
+        );
+        $this->assertEquals(0, $commandTester->getStatusCode());
+        $display = $this->getActualOutput();
+        $this->assertContains('Source language: en', $display);
+        $this->assertContains('Translation:', $display);
+        $this->assertContains('Model: nmt', $display);
+    }
+
     public function testDetectLanguage()
     {
         $application = new Application();