Data retrieval service with exponential backoff

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Here we will create Data retrieval service with exponential backoff that we covered in the previous post. Implementation   package;   import java.util.Date; import java.util.Objects; import java.util.concurrent.TimeUnit; import java.util.function.Function; import java.util.function.ObjLongConsumer; import java.util.function.Supplier;   import org.slf4j.Logger; import org.slf4j.LoggerFactory;   public class DataRetrievalWithBackoff implements Runnable { public final Logger LOGGER = LoggerFactory.getLogger(DataRetrievalWithBackoff.class);   private final […]


Calculating partial Hausdorff Distance

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  struct Point { Point(int_t _x, int_t _y) : x(_x), y (_y) {   }   int_t x; int_t y; };     typedef std::list<Point*> points_t;   double euclideanDistance(const Point& lhs,const Point& rhs) { double p1 = std::pow((float)(rhs.x – lhs.x), 2); double p2 = std::pow((float)(rhs.y – lhs.y), 2); double vd = std::sqrt(p1 + p2);   […]


HashTable implemented using quadratic probing for collision resolution

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Using quadratic probing for collision resolution #define ERROR_TABLE_FULL -1 #define ERROR_RECORD_NOT_FOUND -1 #define ERROR_DUPLICATE_RECORD -1   class HashTable{ public: HashTable(int table_size); int insert(const string &record); int retrieve(const string &record); private: int hash(const string &record); int hash_size; int record_count; string* table; };   /** * Constructor accepting table_size */ HashTable::HashTable(int table_size){ hash_size = table_size; table = […]