Add GenerateHistoricalMetrics example

Change-Id: Ib75850f2a3edf94d6e1ad4df7583919d6fc223b8

Author: devchas

google-ads-examples/src/main/java/com/google/ads/googleads/examples/planning/GenerateHistoricalMetrics.java

@@ -0,0 +1,157 @@
+// Copyright 2019 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
+//
+//     https://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 com.google.ads.googleads.examples.planning;
+
+import com.beust.jcommander.Parameter;
+import com.google.ads.googleads.examples.utils.ArgumentNames;
+import com.google.ads.googleads.examples.utils.CodeSampleParams;
+import com.google.ads.googleads.lib.GoogleAdsClient;
+import com.google.ads.googleads.v11.common.MonthlySearchVolume;
+import com.google.ads.googleads.v11.errors.GoogleAdsError;
+import com.google.ads.googleads.v11.errors.GoogleAdsException;
+import com.google.ads.googleads.v11.services.GenerateHistoricalMetricsResponse;
+import com.google.ads.googleads.v11.services.KeywordPlanKeywordHistoricalMetrics;
+import com.google.ads.googleads.v11.services.KeywordPlanServiceClient;
+import com.google.ads.googleads.v11.utils.ResourceNames;
+import com.google.protobuf.ProtocolStringList;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+/**
+ * Generates historical metrics for a keyword plan. To create a keyword plan, run the {@link
+ * AddKeywordPlan} example.
+ */
+public class GenerateHistoricalMetrics {
+
+  private static class GenerateHistoricalMetricsParams extends CodeSampleParams {
+
+    @Parameter(
+        names = ArgumentNames.CUSTOMER_ID,
+        description = "The customer in which to create a new keyword plan.")
+    public Long customerId;
+
+    @Parameter(
+        names = ArgumentNames.KEYWORD_PLAN_ID,
+        description = "The keyword plan ID for which to generate metrics.")
+    public Long keywordPlanId;
+  }
+
+  public static void main(String[] args) {
+    GenerateHistoricalMetricsParams params = new GenerateHistoricalMetricsParams();
+    if (!params.parseArguments(args)) {
+
+      // Optional, specify the customer ID for which the call is made.
+      params.customerId = Long.valueOf("INSERT_CUSTOMER_ID");
+
+      params.keywordPlanId = Long.valueOf("INSERT_KEYWORD_PLAN_ID");
+    }
+    GoogleAdsClient googleAdsClient = null;
+    try {
+      googleAdsClient = GoogleAdsClient.newBuilder().fromPropertiesFile().build();
+    } catch (FileNotFoundException fnfe) {
+      System.err.printf(
+          "Failed to load GoogleAdsClient configuration from file. Exception: %s%n", fnfe);
+      System.exit(1);
+    } catch (IOException ioe) {
+      System.err.printf("Failed to create GoogleAdsClient. Exception: %s%n", ioe);
+      System.exit(1);
+    }
+
+    try {
+      new GenerateHistoricalMetrics()
+          .runExample(googleAdsClient, params.customerId, params.keywordPlanId);
+    } catch (GoogleAdsException gae) {
+      // GoogleAdsException is the base class for most exceptions thrown by an API request.
+      // Instances of this exception have a message and a GoogleAdsFailure that contains a
+      // collection of GoogleAdsErrors that indicate the underlying causes of the
+      // GoogleAdsException.
+      System.err.printf(
+          "Request ID %s failed due to GoogleAdsException. Underlying errors:%n",
+          gae.getRequestId());
+      int i = 0;
+      for (GoogleAdsError googleAdsError : gae.getGoogleAdsFailure().getErrorsList()) {
+        System.err.printf("  Error %d: %s%n", i++, googleAdsError);
+      }
+      System.exit(1);
+    }
+  }
+
+  /**
+   * Runs the code example.
+   *
+   * @param googleAdsClient the Google Ads API client.
+   * @param customerId the client customer ID.
+   * @param planId the plan ID.
+   */
+  // [START generate_historical_metrics]
+  private void runExample(GoogleAdsClient googleAdsClient, Long customerId, Long planId) {
+    String resourceName = ResourceNames.keywordPlan(customerId, planId);
+
+    try (KeywordPlanServiceClient keywordPlanServiceClient =
+        googleAdsClient.getLatestVersion().createKeywordPlanServiceClient()) {
+      GenerateHistoricalMetricsResponse response =
+          keywordPlanServiceClient.generateHistoricalMetrics(resourceName);
+
+      for (KeywordPlanKeywordHistoricalMetrics metric : response.getMetricsList()) {
+        // These metrics include those for both the search query and any close variants included in
+        // the response.
+
+        ProtocolStringList variants = metric.getCloseVariantsList();
+        String variantsList =
+            (variants.isEmpty())
+                ? ""
+                : String.format(" (and the following variants: %s)", String.join(", ", variants));
+
+        System.out.printf(
+            "The search query '%s'%s generated the following historical metrics:%n",
+            metric.getSearchQuery(), variantsList);
+
+        // Approximate number of monthly searches on this query averaged for the past 12 months.
+        System.out.printf(
+            "\tApproximate monthly searches: %d.%n",
+            metric.getKeywordMetrics().getAvgMonthlySearches());
+
+        // The competition level for this search query.
+        System.out.printf(
+            "\tCompetition level: %s.%n", metric.getKeywordMetrics().getCompetition().name());
+
+        // The competition index for the query in the range [0, 100]. This shows how competitive ad
+        // placement is for a keyword. The level of competition from 0-100 is determined by the
+        // number of ad slots filled divided by the total number of ad slots available. If not
+        // enough data is available, None will be returned.
+        System.out.printf(
+            "\tCompetition index: %d.%n", metric.getKeywordMetrics().getCompetitionIndex());
+
+        // Top of page bid low range (20th percentile) in micros for the keyword.
+        System.out.printf(
+            "\tTop of page bid low range %d.%n",
+            metric.getKeywordMetrics().getLowTopOfPageBidMicros());
+
+        // Top of page bid high range (80th percentile) in micros for the keyword.
+        System.out.printf(
+            "\tTop of page bid high range %d.%n",
+            metric.getKeywordMetrics().getHighTopOfPageBidMicros());
+
+        // Approximate number of searches on this query for the past twelve months.
+        for (MonthlySearchVolume month : metric.getKeywordMetrics().getMonthlySearchVolumesList()) {
+          System.out.printf(
+              "\tApproximately %d searches in %s, %d.%n",
+              month.getMonthlySearches(), month.getMonth().name(), month.getYear());
+        }
+      }
+    }
+  }
+  // [END generate_historical_metrics]
+}