fix: fixed exception and added loggin when eim.json is missing (#1270)

Author: sigmaaa

bundles/com.espressif.idf.core/src/com/espressif/idf/core/tools/EimIdfConfiguratinParser.java

@@ -1,10 +1,12 @@
 package com.espressif.idf.core.tools;
 
+import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
 
 import org.eclipse.core.runtime.Platform;
 
+import com.espressif.idf.core.logging.Logger;
 import com.espressif.idf.core.tools.vo.EimJson;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
@@ -13,35 +15,43 @@ public class EimIdfConfiguratinParser
 {
 	private EimJson eimJson;
 	private Gson gson;
-	
+
 	public EimIdfConfiguratinParser()
 	{
 		gson = new GsonBuilder().setPrettyPrinting().enableComplexMapKeySerialization()
 				.excludeFieldsWithoutExposeAnnotation().create();
 	}
-	
+
 	private void load() throws IOException
 	{
-		try (FileReader fileReader = new FileReader(
-				Platform.getOS().equals(Platform.OS_WIN32) ? EimConstants.EIM_WIN_PATH : EimConstants.EIM_POSIX_PATH))
+		String path = Platform.getOS().equals(Platform.OS_WIN32) ? EimConstants.EIM_WIN_PATH
+				: EimConstants.EIM_POSIX_PATH;
+
+		File file = new File(path);
+		if (!file.exists())
+		{
+			Logger.log("EIM config file not found: " + path); //$NON-NLS-1$
+			return;
+		}
+
+		try (FileReader fileReader = new FileReader(file))
 		{
 			eimJson = gson.fromJson(fileReader, EimJson.class);
 		}
 	}
 
-	
 	public EimJson getEimJson(boolean reload) throws IOException
 	{
 		if (reload)
 		{
 			load();
 		}
-		
+
 		if (eimJson == null)
 		{
 			load();
 		}
-		
+
 		return eimJson;
 	}
 }