feat: Create DataFormatOptions in BigQuery

Author: lqiu96

google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/DataFormatOptions.java

@@ -0,0 +1,66 @@
+package com.google.cloud.bigquery;
+
+/**
+ * Google BigQuery DataFormatOptions. Configures the output format for data types returned from
+ * BigQuery.
+ */
+public class DataFormatOptions {
+  public enum TimestampFormatOptions {
+    TIMESTAMP_OUTPUT_FORMAT_UNSPECIFIED("TIMESTAMP_OUTPUT_FORMAT_UNSPECIFIED"),
+    FLOAT64("FLOAT64"),
+    INT64("INT64"),
+    ISO8601_STRING("ISO8601_STRING");
+
+    private final String format;
+
+    TimestampFormatOptions(String format) {
+      this.format = format;
+    }
+
+    @Override
+    public String toString() {
+      return format;
+    }
+  }
+
+  private boolean useInt64Timestamp;
+  private TimestampFormatOptions timestampFormatOptions;
+
+  public DataFormatOptions(
+      boolean useInt64Timestamp, TimestampFormatOptions timestampFormatOptions) {
+    this.useInt64Timestamp = useInt64Timestamp;
+    this.timestampFormatOptions = timestampFormatOptions;
+  }
+
+  public boolean isUseInt64Timestamp() {
+    return useInt64Timestamp;
+  }
+
+  public void setUseInt64Timestamp(boolean useInt64Timestamp) {
+    this.useInt64Timestamp = useInt64Timestamp;
+  }
+
+  public TimestampFormatOptions getTimestampFormatOptions() {
+    return timestampFormatOptions;
+  }
+
+  public void setTimestampFormatOptions(TimestampFormatOptions timestampFormatOptions) {
+    this.timestampFormatOptions = timestampFormatOptions;
+  }
+
+  com.google.api.services.bigquery.model.DataFormatOptions toPb() {
+    com.google.api.services.bigquery.model.DataFormatOptions request =
+        new com.google.api.services.bigquery.model.DataFormatOptions();
+    request.setUseInt64Timestamp(useInt64Timestamp);
+    if (timestampFormatOptions != null) {
+      request.setTimestampOutputFormat(timestampFormatOptions.toString());
+    }
+    return request;
+  }
+
+  DataFormatOptions fromPb(com.google.api.services.bigquery.model.DataFormatOptions request) {
+    return new DataFormatOptions(
+        request.getUseInt64Timestamp(),
+        TimestampFormatOptions.valueOf(request.getTimestampOutputFormat()));
+  }
+}