add otel config file

src/main/java/io/unlogged/logging/perthread/MethodMetadata.java

@@ -0,0 +1,108 @@
+package io.unlogged.logging.perthread;
+
+public class MethodMetadata {
+
+    private String className;
+    private String methodName;
+    private String argumentTypes;
+    private String returnType;
+    private String methodDesc;
+    private boolean isStatic;
+    private boolean isPublic;
+    private boolean usesFields;
+    private int methodAccess;
+
+    public MethodMetadata(
+            String className,
+            String methodName,
+            String argumentTypes,
+            String returnType,
+            boolean isStatic,
+            boolean isPublic,
+            boolean usesFields,
+            int methodAccess,
+            String methodDesc) {
+
+        this.className = className;
+        this.methodName = methodName;
+        this.argumentTypes = argumentTypes;
+        this.returnType = returnType;
+        this.isStatic = isStatic;
+        this.isPublic = isPublic;
+        this.usesFields = usesFields;
+        this.methodAccess = methodAccess;
+        this.methodDesc = methodDesc;
+    }
+
+    public String getClassName() {
+        return className;
+    }
+
+    public void setClassName(String className) {
+        this.className = className;
+    }
+
+    public String getMethodName() {
+        return methodName;
+    }
+
+    public void setMethodName(String methodName) {
+        this.methodName = methodName;
+    }
+
+    public String getArgumentTypes() {
+        return argumentTypes;
+    }
+
+    public void setArgumentTypes(String argumentTypes) {
+        this.argumentTypes = argumentTypes;
+    }
+
+    public String getReturnType() {
+        return returnType;
+    }
+
+    public void setReturnType(String returnType) {
+        this.returnType = returnType;
+    }
+
+    public boolean isStatic() {
+        return isStatic;
+    }
+
+    public void setStatic(boolean aStatic) {
+        isStatic = aStatic;
+    }
+
+    public boolean isPublic() {
+        return isPublic;
+    }
+
+    public void setPublic(boolean aPublic) {
+        isPublic = aPublic;
+    }
+
+    public boolean isUsesFields() {
+        return usesFields;
+    }
+
+    public void setUsesFields(boolean usesFields) {
+        this.usesFields = usesFields;
+    }
+
+    public int getMethodAccess() {
+        return methodAccess;
+    }
+
+    public void setMethodAccess(int methodAccess) {
+        this.methodAccess = methodAccess;
+    }
+
+    public String getMethodDesc() {
+        return methodDesc;
+    }
+
+    public void setMethodDesc(String methodDesc) {
+        this.methodDesc = methodDesc;
+    }
+}

src/main/java/io/unlogged/logging/perthread/OtelConfig.java

@@ -0,0 +1,58 @@
+package io.unlogged.logging.perthread;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import io.opentelemetry.api.GlobalOpenTelemetry;
+import io.opentelemetry.api.trace.Span;
+import io.opentelemetry.api.trace.Tracer;
+
+public class OtelConfig {
+
+    private static final Tracer tracer = GlobalOpenTelemetry.getTracer("unlogged-spring-maven-demo");
+
+    private static ObjectMapper instance;
+
+    static {
+        instance = new ObjectMapper();
+    }
+
+    public static void makeSpan(String keyValue, Object objectValue) {
+
+        // serialise object
+        Span span = tracer.spanBuilder("custom_tracer.1").startSpan();
+        try {
+            String objectString = instance.writeValueAsString(objectValue);
+            span.setAttribute(keyValue, objectString);
+        }
+        catch (JsonProcessingException e){
+            e.printStackTrace();
+            span.setAttribute(keyValue, "null");
+        }
+        span.end();
+    }
+
+    public static void registerMethod(
+            Span span,
+            int id,
+            String className,
+            String methodName,
+            String argumentTypes,
+            String returnType,
+            boolean isStatic,
+            boolean isPublic,
+            boolean usesFields,
+            int methodAccess,
+            String methodDesc
+    ) {
+
+        MethodMetadata methodMetadata = new MethodMetadata(className, methodName, argumentTypes, returnType, isStatic, isPublic, usesFields, methodAccess, methodDesc);
+        try {
+            String objectString = instance.writeValueAsString(methodMetadata);
+            span.setAttribute("methodRegistration-" + id, objectString);
+        } catch (JsonProcessingException e) {
+            e.printStackTrace();
+            span.setAttribute("method_registration", "method registration have failed");
+        }
+    }
+
+}