Add --supportQ flag to java StatsLog codegen

Add support to generate Q schema code generation only for modules that
ship to Q.

Bug: 145606209
Test: m
Test: flashes successfully
Test: adb logcat "*:S statsd:*"
Change-Id: I978ac321415f1e8d76e4ec73445894965845aaea

1 files changed, 14 insertions, 8 deletions

diff --git a/tools/stats_log_api_gen/java_writer.cpp b/tools/stats_log_api_gen/java_writer.cpp
index 663d49c0d229..7f0872c02613 100644
--- a/tools/stats_log_api_gen/java_writer.cpp
+++ b/tools/stats_log_api_gen/java_writer.cpp
@@ -48,7 +48,8 @@ static int write_java_methods(
         FILE* out,
         const map<vector<java_type_t>, set<string>>& signatures_to_modules,
         const AtomDecl &attributionDecl,
-        const string& moduleName
+        const string& moduleName,
+        const bool supportQ
         ) {
     for (auto signature_to_modules_it = signatures_to_modules.begin();
             signature_to_modules_it != signatures_to_modules.end(); signature_to_modules_it++) {
@@ -82,7 +83,7 @@ static int write_java_methods(
 
         // Print method body.
         string indent("");
-        if (DEFAULT_MODULE_NAME != moduleName) {
+        if (supportQ) {
             // TODO(b/146235828): Use just SDK_INT check once it is incremented from Q.
             fprintf(out, "        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.Q ||\n");
             fprintf(out, "                Build.VERSION.CODENAME.equals(\"R\")) {\n");
@@ -195,7 +196,7 @@ static int write_java_methods(
         fprintf(out, "%s        StatsLog.write(builder.build());\n", indent.c_str());
 
         // Add support for writing using Q schema if this is not the default module.
-        if (DEFAULT_MODULE_NAME != moduleName) {
+        if (supportQ) {
             fprintf(out, "        } else {\n");
             fprintf(out, "            QLogger.write(code");
             argIndex = 1;
@@ -227,15 +228,17 @@ static int write_java_methods(
 
 int write_stats_log_java(FILE* out, const Atoms& atoms, const AtomDecl &attributionDecl,
                                     const string& moduleName, const string& javaClass,
-                                    const string& javaPackage) {
+                                    const string& javaPackage, const bool supportQ) {
     // Print prelude
     fprintf(out, "// This file is autogenerated\n");
     fprintf(out, "\n");
     fprintf(out, "package %s;\n", javaPackage.c_str());
     fprintf(out, "\n");
     fprintf(out, "\n");
-    fprintf(out, "import android.os.Build;\n");
-    fprintf(out, "import android.os.SystemClock;\n");
+    if (supportQ) {
+        fprintf(out, "import android.os.Build;\n");
+        fprintf(out, "import android.os.SystemClock;\n");
+    }
 
     if (DEFAULT_MODULE_NAME == moduleName) {
         // Mainline modules don't use WorkSource logging.
@@ -273,12 +276,15 @@ int write_stats_log_java(FILE* out, const Atoms& atoms, const AtomDecl &attribut
 
     // Print write methods.
     fprintf(out, "    // Write methods\n");
-    errors += write_java_methods(out, atoms.signatures_to_modules, attributionDecl, moduleName);
+    errors += write_java_methods(
+            out, atoms.signatures_to_modules, attributionDecl, moduleName, supportQ);
     errors += write_java_non_chained_methods(
             out, atoms.non_chained_signatures_to_modules, moduleName);
     if (DEFAULT_MODULE_NAME == moduleName) {
         errors += write_java_work_source_methods(out, atoms.signatures_to_modules, moduleName);
-    } else {
+    }
+
+    if (supportQ) {
         errors += write_java_q_logger_class(
                 out, atoms.signatures_to_modules, attributionDecl, moduleName);
     }