protected static int __compare()

in filter/src/main/java/org/apache/rocketmq/filter/expression/ComparisonExpression.java [530:647]

• 116 lines of code
• 54 McCabe index (conditional complexity)

    protected static int __compare(Comparable lv, Comparable rv, boolean convertStringExpressions) {
        Class<? extends Comparable> lc = lv.getClass();
        Class<? extends Comparable> rc = rv.getClass();
        // If the the objects are not of the same type,
        // try to convert up to allow the comparison.
        if (lc != rc) {
            try {
                if (lc == Boolean.class) {
                    if (convertStringExpressions && rc == String.class) {
                        lv = Boolean.valueOf((String) lv).booleanValue();
                    } else {
                        return -1;
                    }
                } else if (lc == Byte.class) {
                    if (rc == Short.class) {
                        lv = Short.valueOf(((Number) lv).shortValue());
                    } else if (rc == Integer.class) {
                        lv = Integer.valueOf(((Number) lv).intValue());
                    } else if (rc == Long.class) {
                        lv = Long.valueOf(((Number) lv).longValue());
                    } else if (rc == Float.class) {
                        lv = new Float(((Number) lv).floatValue());
                    } else if (rc == Double.class) {
                        lv = new Double(((Number) lv).doubleValue());
                    } else if (convertStringExpressions && rc == String.class) {
                        rv = Byte.valueOf((String) rv);
                    } else {
                        return -1;
                    }
                } else if (lc == Short.class) {
                    if (rc == Integer.class) {
                        lv = Integer.valueOf(((Number) lv).intValue());
                    } else if (rc == Long.class) {
                        lv = Long.valueOf(((Number) lv).longValue());
                    } else if (rc == Float.class) {
                        lv = new Float(((Number) lv).floatValue());
                    } else if (rc == Double.class) {
                        lv = new Double(((Number) lv).doubleValue());
                    } else if (convertStringExpressions && rc == String.class) {
                        rv = Short.valueOf((String) rv);
                    } else {
                        return -1;
                    }
                } else if (lc == Integer.class) {
                    if (rc == Long.class) {
                        lv = Long.valueOf(((Number) lv).longValue());
                    } else if (rc == Float.class) {
                        lv = new Float(((Number) lv).floatValue());
                    } else if (rc == Double.class) {
                        lv = new Double(((Number) lv).doubleValue());
                    } else if (convertStringExpressions && rc == String.class) {
                        rv = Integer.valueOf((String) rv);
                    } else {
                        return -1;
                    }
                } else if (lc == Long.class) {
                    if (rc == Integer.class) {
                        rv = Long.valueOf(((Number) rv).longValue());
                    } else if (rc == Float.class) {
                        lv = new Float(((Number) lv).floatValue());
                    } else if (rc == Double.class) {
                        lv = new Double(((Number) lv).doubleValue());
                    } else if (convertStringExpressions && rc == String.class) {
                        rv = Long.valueOf((String) rv);
                    } else {
                        return -1;
                    }
                } else if (lc == Float.class) {
                    if (rc == Integer.class) {
                        rv = new Float(((Number) rv).floatValue());
                    } else if (rc == Long.class) {
                        rv = new Float(((Number) rv).floatValue());
                    } else if (rc == Double.class) {
                        lv = new Double(((Number) lv).doubleValue());
                    } else if (convertStringExpressions && rc == String.class) {
                        rv = Float.valueOf((String) rv);
                    } else {
                        return -1;
                    }
                } else if (lc == Double.class) {
                    if (rc == Integer.class) {
                        rv = new Double(((Number) rv).doubleValue());
                    } else if (rc == Long.class) {
                        rv = new Double(((Number) rv).doubleValue());
                    } else if (rc == Float.class) {
                        rv = new Float(((Number) rv).doubleValue());
                    } else if (convertStringExpressions && rc == String.class) {
                        rv = Double.valueOf((String) rv);
                    } else {
                        return -1;
                    }
                } else if (convertStringExpressions && lc == String.class) {
                    if (rc == Boolean.class) {
                        lv = Boolean.valueOf((String) lv);
                    } else if (rc == Byte.class) {
                        lv = Byte.valueOf((String) lv);
                    } else if (rc == Short.class) {
                        lv = Short.valueOf((String) lv);
                    } else if (rc == Integer.class) {
                        lv = Integer.valueOf((String) lv);
                    } else if (rc == Long.class) {
                        lv = Long.valueOf((String) lv);
                    } else if (rc == Float.class) {
                        lv = Float.valueOf((String) lv);
                    } else if (rc == Double.class) {
                        lv = Double.valueOf((String) lv);
                    } else {
                        return -1;
                    }
                } else {
                    return -1;
                }
            } catch (NumberFormatException e) {
                throw new RuntimeException(e);
            }
        }
        return lv.compareTo(rv);
    }