Make BillingModule.OVERALL_INVOICE_PREFIX configurable

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=221700223

java/google/registry/beam/invoicing/InvoicingPipeline.java

@@ -75,6 +75,10 @@ public class InvoicingPipeline implements Serializable {
   @Config("billingBucketUrl")
   String billingBucketUrl;
 
+  @Inject
+  @Config("invoiceFilePrefix")
+  String invoiceFilePrefix;
+
   @Inject
   InvoicingPipeline() {}
 
@@ -164,7 +168,7 @@ public class InvoicingPipeline implements Serializable {
                         billingBucketUrl,
                         BillingModule.INVOICES_DIRECTORY,
                         yearMonth,
-                        BillingModule.OVERALL_INVOICE_PREFIX,
+                        invoiceFilePrefix,
                         yearMonth)))
         .withHeader(InvoiceGroupingKey.invoiceHeader())
         .withoutSharding()

java/google/registry/config/RegistryConfig.java

@@ -692,6 +692,18 @@ public final class RegistryConfig {
       return ImmutableList.copyOf(config.billing.invoiceEmailRecipients);
     }
 
+    /**
+     * Returns the file prefix for the invoice CSV file.
+     *
+     * @see google.registry.beam.invoicing.InvoicingPipeline
+     * @see google.registry.reporting.billing.BillingEmailUtils
+     */
+    @Provides
+    @Config("invoiceFilePrefix")
+    public static String provideInvoiceFilePrefix(RegistryConfigSettings config) {
+      return config.billing.invoiceFilePrefix;
+    }
+
     /**
      * Returns the Google Cloud Storage bucket for staging escrow deposits pending upload.
      *

java/google/registry/config/RegistryConfigSettings.java

@@ -131,6 +131,7 @@ public class RegistryConfigSettings {
   /** Configuration for monthly invoices. */
   public static class Billing {
     public List<String> invoiceEmailRecipients;
+    public String invoiceFilePrefix;
   }
 
   /** Configuration for Registry Data Escrow (RDE). */

java/google/registry/config/files/default-config.yaml

@@ -293,6 +293,7 @@ icannReporting:
 
 billing:
   invoiceEmailRecipients: []
+  invoiceFilePrefix: REG-INV
 
 rde:
   # URL prefix of ICANN's server to upload RDE reports to. Nomulus adds /TLD/ID

java/google/registry/reporting/billing/BillingEmailUtils.java

@@ -48,6 +48,7 @@ class BillingEmailUtils {
   private final String alertRecipientAddress;
   private final ImmutableList<String> invoiceEmailRecipients;
   private final String billingBucket;
+  private final String invoiceFilePrefix;
   private final String invoiceDirectoryPrefix;
   private final GcsUtils gcsUtils;
   private final Retrier retrier;
@@ -60,6 +61,7 @@ class BillingEmailUtils {
       @Config("alertRecipientEmailAddress") String alertRecipientAddress,
       @Config("invoiceEmailRecipients") ImmutableList<String> invoiceEmailRecipients,
       @Config("billingBucket") String billingBucket,
+      @Config("invoiceFilePrefix") String invoiceFilePrefix,
       @InvoiceDirectoryPrefix String invoiceDirectoryPrefix,
       GcsUtils gcsUtils,
       Retrier retrier) {
@@ -69,6 +71,7 @@ class BillingEmailUtils {
     this.alertRecipientAddress = alertRecipientAddress;
     this.invoiceEmailRecipients = invoiceEmailRecipients;
     this.billingBucket = billingBucket;
+    this.invoiceFilePrefix = invoiceFilePrefix;
     this.invoiceDirectoryPrefix = invoiceDirectoryPrefix;
     this.gcsUtils = gcsUtils;
     this.retrier = retrier;
@@ -80,8 +83,7 @@ class BillingEmailUtils {
       retrier.callWithRetry(
           () -> {
             String invoiceFile =
-                String.format(
-                    "%s-%s.csv", BillingModule.OVERALL_INVOICE_PREFIX, yearMonth.toString());
+                String.format("%s-%s.csv", invoiceFilePrefix, yearMonth);
             GcsFilename invoiceFilename =
                 new GcsFilename(billingBucket, invoiceDirectoryPrefix + invoiceFile);
             try (InputStream in = gcsUtils.openInputStream(invoiceFilename)) {
@@ -91,12 +93,12 @@ class BillingEmailUtils {
                 msg.addRecipient(RecipientType.TO, new InternetAddress(recipient));
               }
               msg.setSubject(
-                  String.format("Domain Registry invoice data %s", yearMonth.toString()));
+                  String.format("Domain Registry invoice data %s", yearMonth));
               Multipart multipart = new MimeMultipart();
               BodyPart textPart = new MimeBodyPart();
               textPart.setText(
                   String.format(
-                      "Attached is the %s invoice for the domain registry.", yearMonth.toString()));
+                      "Attached is the %s invoice for the domain registry.", yearMonth));
               multipart.addBodyPart(textPart);
               BodyPart invoicePart = new MimeBodyPart();
               String invoiceData = CharStreams.toString(new InputStreamReader(in, UTF_8));
@@ -128,7 +130,7 @@ class BillingEmailUtils {
             Message msg = emailService.createMessage();
             msg.setFrom(new InternetAddress(outgoingEmailAddress));
             msg.addRecipient(RecipientType.TO, new InternetAddress(alertRecipientAddress));
-            msg.setSubject(String.format("Billing Pipeline Alert: %s", yearMonth.toString()));
+            msg.setSubject(String.format("Billing Pipeline Alert: %s", yearMonth));
             msg.setText(body);
             emailService.sendMessage(msg);
             return null;

java/google/registry/reporting/billing/BillingModule.java

@@ -32,8 +32,6 @@ import org.joda.time.YearMonth;
 public final class BillingModule {
 
   public static final String DETAIL_REPORT_PREFIX = "invoice_details";
-  // TODO(b/119551360): This should be configurable, not hard-coded to Charleston Road Registry.
-  public static final String OVERALL_INVOICE_PREFIX = "CRR-INV";
   public static final String INVOICES_DIRECTORY = "invoices";
 
   static final String PARAM_SHOULD_PUBLISH = "shouldPublish";