saving work

Author: mhlidd

internal-api/src/main/java/datadog/trace/api/ParseSupportedConfigurations.java

@@ -0,0 +1,52 @@
+package datadog.trace.api;
+
+import datadog.json.JsonMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Scanner;
+
+public class ParseSupportedConfigurations {
+  public final Map<String, Object> fileData;
+  public static Map<String, String> aliasMapping;
+  public static final List<String> supportedConfigurations;
+  public static final Map<String, String> deprecatedConfigurations;
+  private static final Logger log = LoggerFactory.getLogger(ParseSupportedConfigurations.class);
+
+  public ParseSupportedConfigurations(String filename) {
+    String jsonString;
+    try {
+      InputStream in = getClass().getClassLoader().getResourceAsStream(filename);
+      jsonString = new Scanner(in, "UTF-8").useDelimiter("\\A").next();
+      fileData = JsonMapper.fromJsonToMap(jsonString);
+    } catch (IOException e) {
+      throw new RuntimeException("Failed to read " + filename, e);
+    }
+    supportedConfigurations = new ArrayList<>(((Map<String, List<String>>) fileData.get("supportedConfigurations")).keySet());
+    aliasToConfig();
+    deprecatedConfigurations = (Map<String, String>) fileData.get("deprecated");
+  }
+
+  private void aliasToConfig(){
+    aliasMapping = new HashMap<>();
+    Map<String, List<String>> aliases = (Map<String, List<String>>) fileData.get("aliases");
+    for (String env : aliases.keySet()){
+      for (String alias : aliases.get(env)){
+        if (aliasMapping.containsKey(alias)){
+          log.info("{} is listed as an alias of {} when it already exists as an alias of {}", alias, env, aliasMapping.get(alias));
+        } else {
+          aliasMapping.put(alias, env);
+        }
+      }
+    }
+  }
+
+
+
+}

internal-api/src/main/resources/supportedConfigurations.json

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+{
+  "supportedConfigurations": {
+    "DD_AAS_DOTNET_EXTENSION_VERSION": ["A"],
+    "DD_ACTION_EXECUTION_ID": ["A"]
+  },
+  "aliases": {
+    "DD_AGENT_HOST": ["DD_TRACE_AGENT_HOSTNAME"],
+    "DD_API_KEY": ["DATADOG_API_KEY"]
+  },
+  "deprecations": {
+    "DD_PROFILING_EXPERIMENTAL_ENDPOINT_COLLECTION_ENABLED": "DD_PROFILING_ENDPOINT_COLLECTION_ENABLED",
+    "DD_PROFILING_EXPERIMENTAL_CPU_ENABLED": "DD_PROFILING_CPU_ENABLED"
+  }
+}

internal-api/src/test/groovy/datadog/trace/api/ParseSupportedConfigurationsTest.groovy

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+package datadog.trace.api
+
+import spock.lang.Specification
+
+class ParseSupportedConfigurationsTest extends Specification{
+
+  def "test parsing supportedConfigurations"() {
+    when:
+    def parseSupportedConfigs = new ParseSupportedConfigurations("supportedConfigurations.json")
+
+    then:
+    parseSupportedConfigs.supportedConfigs != null
+  }
+}