separate resource extraction from supported interfaces

Author: zeitlinger

instrumentation/resources/library/src/main/java9/io/opentelemetry/instrumentation/resources/ProcessArguments.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.instrumentation.resources.internal;
+
+/**
+ * This class is internal and is hence not for public use. Its APIs are unstable and can change
+ * at any time.
+ */
+public final class ProcessArguments {
+
+  public static String[] getProcessArguments() {
+    return ProcessHandle.current().info().arguments().orElseGet(() -> new String[0]);
+  }
+
+  private ProcessArguments() {}
+}