update swagger

src/main/java/gov/usgs/earthquake/nshmp/netcdf/swagger/UpdateSwagger.java

 package gov.usgs.earthquake.nshmp.netcdf.swagger;
 
+import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileReader;
 import java.io.FileWriter;
 import java.io.IOException;
-import java.net.URISyntaxException;
-import java.net.URL;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Map;
+import java.util.Properties;
 
 import org.yaml.snakeyaml.DumperOptions;
 import org.yaml.snakeyaml.Yaml;
 
-import com.google.common.io.Resources;
-
 import gov.usgs.earthquake.nshmp.netcdf.NshmGroup;
 
 import io.swagger.v3.oas.models.PathItem;
 
 /**
  * Create Swagger files for each model and update context path.
+ * 
+ * @author U.S. Geological Survey
  */
 class UpdateSwagger {
 
-  private static final URL SWAGGER_URL = Resources.getResource("swagger");
   private static final Path SWAGGER_DIR = Paths.get("swagger-files");
   private static final Path TARGET_FILE;
+  private static final String OPENAPI_TARGET = "micronaut.openapi.target.file";
 
   static {
-    try {
-      var dir = Paths.get(SWAGGER_URL.toURI());
-      TARGET_FILE = dir.resolve("netcdf-swagger.yml");
-    } catch (URISyntaxException e) {
+    try (var file = new FileInputStream("openapi.properties")) {
+      var properties = new Properties();
+      properties.load(file);
+      var openapi = properties.getProperty(OPENAPI_TARGET);
+      TARGET_FILE = Paths.get(openapi);
+    } catch (Exception e) {
       throw new RuntimeException(e);
     }
   }