Introduce constants GitHubProjectURL+ProjectName in SongodaCoreConstants

Core/src/main/java/com/songoda/core/SongodaCore.java

@@ -44,7 +44,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 public class SongodaCore {
-    private static final Logger logger = Logger.getLogger("SongodaCore");
+    private static final Logger logger = Logger.getLogger(SongodaCoreConstants.getProjectName());
 
     /**
      * Whenever we make a major change to the core GUI, updater,
@@ -64,6 +64,7 @@ public class SongodaCore {
 
     /**
      * This is specific to the website api
+     *
      * @deprecated Seems useless and will probably be removed in the near future
      */
     @Deprecated
@@ -326,7 +327,7 @@ public class SongodaCore {
     }
 
     public static String getPrefix() {
-        return "[SongodaCore] ";
+        return "[" + SongodaCoreConstants.getProjectName() + "] ";
     }
 
     public static Logger getLogger() {

Core/src/main/java/com/songoda/core/SongodaCoreConstants.java

@@ -1,9 +1,11 @@
 package com.songoda.core;
 
-/*
+/**
- * Return values in this class are automatically replaced by a maven plugin after the project has been compiled.
+ * Some return values in this class are automatically replaced by a maven plugin after the project has been compiled.
  * This allows for properties to be defined at one place without relying on a text file
  * that needs to be inside the final jar (might get lost when this lib is shaded into other projects).
+ * <p>
+ * <b>!! Manually changing the values in this class has to be considered a breaking change. !!</b>
  */
 public class SongodaCoreConstants {
     private SongodaCoreConstants() {
@@ -13,4 +15,12 @@ public class SongodaCoreConstants {
     public static String getCoreVersion() {
         return "UNKNOWN_VESION";
     }
+
+    public static String getProjectName() {
+        return "SongodaCore";
+    }
+
+    public static String getGitHubProjectUrl() {
+        return "https://github.com/craftaro/SongodaCore";
+    }
 }

Core/src/main/java/com/songoda/core/http/SimpleHttpClient.java

@@ -1,6 +1,6 @@
 package com.songoda.core.http;
 
-import com.songoda.core.SongodaCore;
+import com.songoda.core.SongodaCoreConstants;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.IOException;
@@ -8,14 +8,24 @@ import java.net.HttpURLConnection;
 import java.net.URL;
 
 public class SimpleHttpClient implements HttpClient {
+    private static final String USER_AGENT = generateUserAgent();
+
     public @NotNull HttpResponse get(String url) throws IOException {
         HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
         connection.setInstanceFollowRedirects(true);
         connection.setConnectTimeout(5000);
         connection.setReadTimeout(5000);
 
-        connection.setRequestProperty("User-Agent", "SongodaCore/" + SongodaCore.getVersion() + " (+https://github.com/songoda/SongodaCore)");
+        connection.setRequestProperty("User-Agent", USER_AGENT);
 
         return new HttpResponseImpl(connection);
     }
+
+    private static String generateUserAgent() {
+        String projectName = SongodaCoreConstants.getProjectName();
+        String version = SongodaCoreConstants.getCoreVersion();
+        String projectUrl = SongodaCoreConstants.getGitHubProjectUrl();
+
+        return projectName + "/" + version + " (+" + projectUrl + ")";
+    }
 }

Core/src/main/java/com/songoda/core/math/MathUtils.java

@@ -1,5 +1,7 @@
 package com.songoda.core.math;
 
+import com.songoda.core.SongodaCoreConstants;
+
 import java.util.HashMap;
 import java.util.Map;
 
@@ -7,7 +9,7 @@ public class MathUtils {
     private static final Map<String, Double> cache = new HashMap<>();
 
     public static double eval(String toParse) {
-        return eval(toParse, "SongodaCore Eval Engine");
+        return eval(toParse, SongodaCoreConstants.getProjectName() + " Eval Engine");
     }
 
     public static double eval(String toParse, String warningMessage) {

Core/src/test/java/com/songoda/core/SongodaCoreConstantsTest.java

@@ -6,6 +6,7 @@ import org.opentest4j.TestSkippedException;
 import java.util.Objects;
 import java.util.regex.Pattern;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 class SongodaCoreConstantsTest {
@@ -22,4 +23,14 @@ class SongodaCoreConstantsTest {
 
         assertTrue(VERSION_PATTERN.matcher(coreVersion).matches(), "Version string is not a valid semver string: " + coreVersion);
     }
+
+    @Test
+    void getProjectName() {
+        assertFalse(SongodaCoreConstants.getProjectName().isEmpty());
+    }
+
+    @Test
+    void getGitHubProjectUrl() {
+        assertFalse(SongodaCoreConstants.getGitHubProjectUrl().isEmpty());
+    }
 }