1 files changed, 77 insertions, 0 deletions
diff --git a/tools/cts-api-coverage/src/com/android/cts/ctsprofiles/Utils.java b/tools/cts-api-coverage/src/com/android/cts/ctsprofiles/Utils.java
new file mode 100644
index 00000000000..c4e9a8df7e3
--- /dev/null
+++ b/tools/cts-api-coverage/src/com/android/cts/ctsprofiles/Utils.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * 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 com.android.cts.ctsprofiles;
+
+import org.apache.commons.math3.util.Pair;
+
+import java.util.List;
+
+/** Utility for generating package, class or method information. */
+public final class Utils {
+
+    /** Splits a class signature and returns the (package, class) pair. */
+    public static Pair<String, String> getPackageClass(String classSignature) {
+        int splitPos = classSignature.lastIndexOf('.');
+        String className = classSignature.substring(splitPos + 1);
+        String packageName = "";
+        if (splitPos > 0) {
+            packageName = classSignature.substring(0, splitPos);
+        }
+        return Pair.create(packageName, className.replaceAll("\\$", "."));
+    }
+
+    /** Splits a class name represented in ASM and returns the (package, class) pair. */
+    public static Pair<String, String> getPackageClassFromASM(String packageClass) {
+        // The class name obtained from ASM includes package information and is separated by "/".
+        // For example, the class com.my.package.MyClass.NestClass is represented as
+        // com/my/package/MyClass$NestClass in ASM.
+        int splitPos = packageClass.lastIndexOf("/");
+        String packageName = "";
+        if (splitPos != -1) {
+            packageName = packageClass.substring(0, splitPos);
+        }
+        String className = packageClass.substring(splitPos + 1);
+        return Pair.create(
+                packageName.replaceAll("/", "."),
+                className.replaceAll("\\$", ".")
+        );
+    }
+
+    /** Returns a class signature in the format {package}.{class}. */
+    public static String getClassSignature(String packageName, String className) {
+        if (packageName.isEmpty()) {
+            return className;
+        }
+        return String.format("%s.%s", packageName, className);
+    }
+
+    /** Returns a method signature in the format {method}({param1}, {param2}, ...). */
+    public static String getMethodSignature(String methodName, List<String> paramTypes) {
+        return String.format("%s(%s)", methodName, String.join(", ", paramTypes));
+    }
+
+    /**
+     * Returns a full method signature in the format
+     * {package}.{class}#{method}({param1}, {param2}, ...).
+     */
+    public static String getMethodSignatureWithClass(
+            String packageName, String className, String methodName, List<String> paramTypes) {
+        String classSignature = getClassSignature(packageName, className);
+        String methodSignature = getMethodSignature(methodName, paramTypes);
+        return String.format("%s#%s", classSignature, methodSignature);
+    }
+}