samples: Add Java code sample for table inspection (#3062)

To be linked from https://cloud.google.com/dlp/docs/inspecting-structured-text

dlp/snippets/snippets/src/main/java/dlp/snippets/InspectTable.java

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * 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.
+ */
+
+package dlp.snippets;
+
+// [START dlp_inspect_table]
+
+import com.google.cloud.dlp.v2.DlpServiceClient;
+import com.google.privacy.dlp.v2.ByteContentItem;
+import com.google.privacy.dlp.v2.ByteContentItem.BytesType;
+import com.google.privacy.dlp.v2.ContentItem;
+import com.google.privacy.dlp.v2.FieldId;
+import com.google.privacy.dlp.v2.Finding;
+import com.google.privacy.dlp.v2.InfoType;
+import com.google.privacy.dlp.v2.InspectConfig;
+import com.google.privacy.dlp.v2.InspectContentRequest;
+import com.google.privacy.dlp.v2.InspectContentResponse;
+import com.google.privacy.dlp.v2.Likelihood;
+import com.google.privacy.dlp.v2.LocationName;
+import com.google.privacy.dlp.v2.Table;
+import com.google.privacy.dlp.v2.Table.Row;
+import com.google.privacy.dlp.v2.Value;
+import com.google.protobuf.ByteString;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class InspectTable {
+
+  public static void inspectTable() {
+    // TODO(developer): Replace these variables before running the sample.
+    String projectId = "your-project-id";
+    Table tableToInspect = Table.newBuilder()
+        .addHeaders(FieldId.newBuilder().setName("name").build())
+        .addHeaders(FieldId.newBuilder().setName("phone").build())
+        .addRows(Row.newBuilder()
+            .addValues(Value.newBuilder().setStringValue("John Doe").build())
+            .addValues(Value.newBuilder().setStringValue("(206) 555-0123").build()))
+        .build();
+
+    inspectTable(projectId, tableToInspect);
+  }
+
+  // Inspects the provided text.
+  public static void inspectTable(String projectId, Table tableToInspect) {
+    // Initialize client that will be used to send requests. This client only needs to be created
+    // once, and can be reused for multiple requests. After completing all of your requests, call
+    // the "close" method on the client to safely clean up any remaining background resources.
+    try (DlpServiceClient dlp = DlpServiceClient.create()) {
+      // Specify the table to be inspected.
+      ContentItem item = ContentItem.newBuilder().setTable(tableToInspect).build();
+
+      // Specify the type of info the inspection will look for.
+      // See https://cloud.google.com/dlp/docs/infotypes-reference for complete list of info types
+      InfoType infoType = InfoType.newBuilder().setName("PHONE_NUMBER").build();
+
+      // Construct the configuration for the Inspect request.
+      InspectConfig config =
+          InspectConfig.newBuilder()
+              .addInfoTypes(infoType)
+              .setIncludeQuote(true)
+              .build();
+
+      // Construct the Inspect request to be sent by the client.
+      InspectContentRequest request =
+          InspectContentRequest.newBuilder()
+              .setParent(LocationName.of(projectId, "global").toString())
+              .setItem(item)
+              .setInspectConfig(config)
+              .build();
+
+      // Use the client to send the API request.
+      InspectContentResponse response = dlp.inspectContent(request);
+
+      // Parse the response and process results
+      System.out.println("Findings: " + response.getResult().getFindingsCount());
+      for (Finding f : response.getResult().getFindingsList()) {
+        System.out.println("\tQuote: " + f.getQuote());
+        System.out.println("\tInfo type: " + f.getInfoType().getName());
+        System.out.println("\tLikelihood: " + f.getLikelihood());
+      }
+    } catch (Exception e) {
+      System.out.println("Error during inspectString: \n" + e.toString());
+    }
+  }
+}
+// [END dlp_inspect_table]

dlp/snippets/snippets/src/test/java/dlp/snippets/InspectTests.java

@@ -24,6 +24,10 @@
 import com.google.api.gax.rpc.ApiException;
 import com.google.cloud.pubsub.v1.SubscriptionAdminClient;
 import com.google.cloud.pubsub.v1.TopicAdminClient;
+import com.google.privacy.dlp.v2.FieldId;
+import com.google.privacy.dlp.v2.Table;
+import com.google.privacy.dlp.v2.Table.Row;
+import com.google.privacy.dlp.v2.Value;
 import com.google.pubsub.v1.ProjectSubscriptionName;
 import com.google.pubsub.v1.PushConfig;
 import com.google.pubsub.v1.TopicName;
@@ -212,6 +216,21 @@ public void testInspectStringWithoutOverlap() throws Exception {
     assertThat(output, containsString("example.com"));
     assertThat(output, not(containsString("example.org")));
   }
+
+  @Test
+  public void testInspectTable() {
+    Table tableToInspect = Table.newBuilder()
+        .addHeaders(FieldId.newBuilder().setName("name").build())
+        .addHeaders(FieldId.newBuilder().setName("phone").build())
+        .addRows(Row.newBuilder()
+            .addValues(Value.newBuilder().setStringValue("John Doe").build())
+            .addValues(Value.newBuilder().setStringValue("(206) 555-0123").build()))
+        .build();
+    InspectTable.inspectTable(PROJECT_ID, tableToInspect);
+
+    String output = bout.toString();
+    assertThat(output, containsString("Info type: PHONE_NUMBER"));
+  }
 
   @Test
   public void testInspectStringCustomHotword() throws Exception {