[classify] Migrate to new client LanguageServiceClient in 0.16.2

Author: gogasca

language/composer.json

@@ -1,6 +1,6 @@
 {
     "require": {
-        "google/cloud-language": "~0.12",
+        "google/cloud-language": "~0.16.2",
         "google/cloud-storage": "^1.3",
         "symfony/console": "^3.0"
     },

language/language.php

@@ -290,7 +290,7 @@
         // Regex to match a Cloud Storage path as the first argument
         // e.g "gs://my-bucket/file_with_text.txt"
         if (preg_match('/^gs:\/\/([a-z0-9\._\-]+)\/(\S+)$/', $content, $matches)) {
-            classify_text_from_file($content, $projectId);
+            classify_text_from_file($matches[0], $projectId);
         } else {
             classify_text($content, $projectId);
         }

language/src/classify_text.php

@@ -24,8 +24,8 @@
 # [START language_classify_text]
 namespace Google\Cloud\Samples\Language;
 
-use Google\Cloud\Language\LanguageClient;
-
+use Google\Cloud\Language\V1beta2\Document;
+use Google\Cloud\Language\V1beta2\LanguageServiceClient;
 /**
  * Classify text (20+ words) into categories.
  * ```
@@ -47,21 +47,23 @@ function classify_text($text, $projectId = null)
         printf('20+ words are required to classify text.' . PHP_EOL);
         return;
     }
-
-    // Create the Natural Language client
-    $language = new LanguageClient([
-        'projectId' => $projectId,
-    ]);
-
-    // Call the classifyText function
-    $response = $language->classifyText($text);
-    $categories = $response->categories();
-
-    // Print out information about each category
-    foreach ($categories as $category) {
-        printf('Category Name: %s' . PHP_EOL, $category['name']);
-        printf('Confidence: %s' . PHP_EOL, $category['confidence']);
-        printf(PHP_EOL);
+    $languageServiceClient = new LanguageServiceClient(['projectId' => $projectId]);
+    try {
+        // Create a new Document
+        $document = new Document();
+        // Pass GCS URI and set document type to PLAIN_TEXT
+        $document->setContent($text)->setType(1);
+        // Call the analyzeSentiment function
+        $response = $languageServiceClient->classifyText($document);
+        $categories = $response->getCategories();
+        // Print document information
+        foreach ($categories as $category) {
+            printf('Category Name: %s' . PHP_EOL, $category->getName());
+            printf('Confidence: %s' . PHP_EOL, $category->getConfidence());
+            printf(PHP_EOL);
+        }
+    } finally {
+        $languageServiceClient->close();
     }
 }
 # [END language_classify_text]

language/src/classify_text_from_file.php

@@ -24,7 +24,8 @@
 # [START language_classify_gcs]
 namespace Google\Cloud\Samples\Language;
 
-use Google\Cloud\Language\LanguageClient;
+use Google\Cloud\Language\V1beta2\Document;
+use Google\Cloud\Language\V1beta2\LanguageServiceClient;
 
 /**
  * Classify text (20+ words) into categories.
@@ -36,22 +37,25 @@
  * @param string $projectId (optional) Your Google Cloud Project ID
  */
 
-function classify_text_from_file($cloud_storage_uri, $projectId = null)
+function classify_text_from_file($gcsUri, $projectId = null)
 {
-    // Create the Natural Language client
-    $language = new LanguageClient([
-        'projectId' => $projectId,
-    ]);
-
-    // Call the classifyText function
-    $response = $language->classifyText($cloud_storage_uri);
-    $categories = $response->categories();
-
-    // Print out information about each category
-    foreach ($categories as $category) {
-        printf('Category Name: %s' . PHP_EOL, $category['name']);
-        printf('Confidence: %s' . PHP_EOL, $category['confidence']);
-        printf(PHP_EOL);
+    $languageServiceClient = new LanguageServiceClient(['projectId' => $projectId]);
+    try {
+        // Create a new Document
+        $document = new Document();
+        // Pass GCS URI and set document type to PLAIN_TEXT
+        $document->setGcsContentUri($gcsUri)->setType(1);
+        // Call the analyzeSentiment function
+        $response = $languageServiceClient->classifyText($document);
+        $categories = $response->getCategories();
+        // Print document information
+        foreach ($categories as $category) {
+            printf('Category Name: %s' . PHP_EOL, $category->getName());
+            printf('Confidence: %s' . PHP_EOL, $category->getConfidence());
+            printf(PHP_EOL);
+        }
+    } finally {
+        $languageServiceClient->close();
     }
 }
 # [END language_classify_gcs]