source: java/main/src/main/java/com/framsticks/util/Misc.java @ 193

package com.framsticks.util;

// import org.apache.logging.log4j.Logger;

/**
 * Author: Piotr Śniegowski
 */
public class Misc {
        // private static final Logger log =
        //      LogManager.getLogger(Misc.class);

        public static class WithType {
                protected Object value;

                /**
                 * @param value
                 */
                public WithType(Object value) {
                        this.value = value;
                }

                @Override
                public String toString() {
                        if (value == null) {
                                return "null";
                        }
                        return value + "(" + value.getClass() + ")";
                }
        }

        public static WithType withType(Object value) {
                return new WithType(value);
        }

        public static boolean equals(Object a, Object b) {
                // log.info("equality of {} ? {}", withType(a), withType(b));
                if (a != null) {
                        return (b != null && a.equals(b));
                }
                return b == null;
        }

        public static <T> T returnNotNull(T first, T second) {
                if (first != null) {
                        return first;
                }
                return second;
        }

        public static <T> T throwIfNull(T value) {
                if (value == null) {
                        throw new FramsticksException().msg("value should not be null");
                }
                return value;
        }

        public static void checkEquals(Object expected, Object found, String message, Object context) {
                if (equals(expected, found)) {
                        return;
                }
                FramsticksException e = new FramsticksException().msg(message).arg("expected", expected).arg("found", found);
                if (context != null) {
                        e.arg("in", context);
                }
                throw e;
        }

        public static Class<?> getClass(Object object) {
                return (object != null ? object.getClass() : null);
        }
}