Example usage for java.lang Number longValue

Introduction

In this page you can find the example usage for java.lang Number longValue.

Prototype

public abstract long longValue();

Source Link

Document

Returns the value of the specified number as a long .

Usage

From source file:org.arkhamnetwork.playersync.utils.SerializationUtils.java

private static final NBTBase javaTypeToNBTTag(Object object) throws IOException {
    // Handle compounds
    if (object instanceof Map) {
        @SuppressWarnings("unchecked")
        Map<String, ?> map = (Map<String, ?>) object;
        NBTTagCompound tag = new NBTTagCompound();
        for (Entry<String, ?> entry : map.entrySet()) {
            tag.set(entry.getKey(), javaTypeToNBTTag(entry.getValue()));
        }/*w ww.j  a v a2s. c o m*/
        return tag;
    }
    // Handle numbers
    if (object instanceof Number) {
        Number number = (Number) object;
        if (number.longValue() == number.doubleValue()) {
            // Whole number
            if (number.intValue() == number.longValue()) {
                // Fits in integer
                return new NBTTagInt(number.intValue());
            }
            return new NBTTagLong(number.longValue());
        } else {
            return new NBTTagDouble(number.doubleValue());
        }
    }
    // Handle strings
    if (object instanceof String) {
        return new NBTTagString((String) object);
    }
    // Handle lists
    if (object instanceof List) {
        List<?> list = (List<?>) object;
        NBTTagList listTag = new NBTTagList();

        // Handle int arrays
        if (list.size() > 0) {
            Object firstElement = list.get(0);
            if (firstElement instanceof Number) {
                @SuppressWarnings("unchecked")
                List<Number> intList = (List<Number>) list;
                return new NBTTagIntArray(unboxIntegers(intList));
            }
        }

        for (Object entry : list) {
            listTag.add(javaTypeToNBTTag(entry));
        }
        return listTag;
    }
    throw new IOException("Unknown object: (" + object.getClass() + ") " + object + "");
}

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From source file:gedi.util.MathUtils.java

/**
 * Throws an exception if n is either a real or to big to be represented by a byte.
 * @param n/*from w w w . ja v a  2s .c om*/
 * @return
 */
public static int intValueExact(Number n) {
    if (n instanceof Integer || n instanceof Short || n instanceof Byte)
        return n.intValue();
    double d = n.doubleValue();
    long l = n.longValue();
    if (d == (double) l) {
        if (l >= Integer.MIN_VALUE && l <= Integer.MAX_VALUE)
            return (int) l;
    }
    throw new NumberFormatException();
}

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From source file:com.paladin.sys.db.QueryHelper.java

/**
 * ???//w  w  w. j  a v a  2 s .c om
 *
 * @param sql
 * @param params
 * @return
 */
public static long stat(String sql, Object... params) {
    try {
        Number num = (Number) RUNNER.query(getConnection(), sql, scalar_handler, params);
        return (num != null) ? num.longValue() : -1;
    } catch (SQLException e) {
        e.printStackTrace();
        return -1;
    } finally {
        DBManager.closeConnection();
    }
}

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From source file:org.javersion.path.NodeId.java

public static NodeId index(Number number) {
    return index(number.longValue());
}

---

From source file:Main.java

static Object convert(Object[] objects, Object var) {
    Object newVar = getObject(objects);

    if (newVar instanceof Number) {
        Number newNum = (Number) var;

        if (newVar instanceof Integer) {
            return new Integer(newNum.intValue());
        } else if (newVar instanceof Long) {
            return new Long(newNum.longValue());
        } else if (newVar instanceof Float) {
            return new Float(newNum.floatValue());
        } else if (newVar instanceof Double) {
            return new Double(newNum.doubleValue());
        } else {// w  w  w  . j  a  v  a 2s  .c  om
            return null;
        }
    } else if (newVar instanceof String) {
        return new String((String) newVar);
    } else {
        //TODO: add other classes
        return null;
    }
}

---

From source file:Main.java

/**
 * Casts an object to the specified type
 *
 * @param var/*ww  w.j  av a2  s .  c  o m*/
 * @param type
 *
 */
static Object convert(Object var, Class type) {
    if (var instanceof Number) { //use number conversion

        Number newNum = (Number) var;

        if (type == Integer.class) {
            return new Integer(newNum.intValue());
        } else if (type == Long.class) {
            return new Long(newNum.longValue());
        } else if (type == Float.class) {
            return new Float(newNum.floatValue());
        } else if (type == Double.class) {
            return new Double(newNum.doubleValue());
        } else if (type == String.class) {
            return new String(newNum.toString());
        }
    } else { //direct cast

        if (type == Integer.class) {
            return new Integer(((Integer) var).intValue());
        } else if (type == Long.class) {
            return new Long(((Long) var).longValue());
        } else if (type == Float.class) {
            return new Float(((Float) var).floatValue());
        } else if (type == Double.class) {
            return new Double(((Double) var).doubleValue());
        } else if (type == String.class) {
            return new String(var.toString());
        }
    }

    return null;
}

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From source file:NumberInRange.java

public static boolean isInRange(Number number, BigDecimal min, BigDecimal max) {
    try {// w  ww .  ja va 2 s  . c  om
        BigDecimal bigDecimal = null;
        if (number instanceof Byte || number instanceof Short || number instanceof Integer
                || number instanceof Long) {
            bigDecimal = new BigDecimal(number.longValue());
        } else if (number instanceof Float || number instanceof Double) {
            bigDecimal = new BigDecimal(number.doubleValue());
        } else if (number instanceof BigInteger) {
            bigDecimal = new BigDecimal((BigInteger) number);
        } else if (number instanceof BigDecimal) {
            bigDecimal = (BigDecimal) number;
        } else {
            bigDecimal = new BigDecimal(number.doubleValue());
        }
        return max.compareTo(bigDecimal) >= 0 && min.compareTo(bigDecimal) <= 0;
    } catch (NumberFormatException e) {
        return false;
    }
}

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From source file:NumberInRange.java

public static boolean isInRange(Number number, BigInteger min, BigInteger max) {
    try {// w  ww  . ja  va 2 s.c om
        BigInteger bigInteger = null;
        if (number instanceof Byte || number instanceof Short || number instanceof Integer
                || number instanceof Long) {
            bigInteger = BigInteger.valueOf(number.longValue());
        } else if (number instanceof Float || number instanceof Double) {
            bigInteger = new BigDecimal(number.doubleValue()).toBigInteger();
        } else if (number instanceof BigInteger) {
            bigInteger = (BigInteger) number;
        } else if (number instanceof BigDecimal) {
            bigInteger = ((BigDecimal) number).toBigInteger();
        } else {
            // not a standard number
            bigInteger = new BigDecimal(number.doubleValue()).toBigInteger();
        }
        return max.compareTo(bigInteger) >= 0 && min.compareTo(bigInteger) <= 0;
    } catch (NumberFormatException e) {
        return false;
    }
}

---

From source file:Main.java

/**
 * This method converts a given number into a target class. This method does not change the value (except when
 * explicitly casting to a more general type, e.g. from double to int), just the internal type representation. While
 * this is unnecessary while using normal java code, reflection based access to method parameters is a bit more
 * difficult. As far as possible, this method will prevent the ArgumentMismatch error when passing numbers as
 * parameters./*from   w  ww  .ja va  2 s .  c  o m*/
 * <p/>
 * If the value can not be converted to the given target class, it will be returned unchanged.
 *
 * @param targetClass Class to which the number should be converted, if possible.
 * @param value       Number value to convert.
 * @return 'value' converted to an instance of 'targetClass'.
 */
public static Object convertNumber(final Class targetClass, final Number value) {
    if (targetClass.equals(Double.class) || targetClass.equals(Double.TYPE))
        return value.doubleValue();
    if (targetClass.equals(Integer.class) || targetClass.equals(Integer.TYPE))
        return value.intValue();
    if (targetClass.equals(Long.class) || targetClass.equals(Long.TYPE))
        return value.longValue();
    if (targetClass.equals(Short.class) || targetClass.equals(Short.TYPE))
        return value.shortValue();
    if (targetClass.equals(Byte.class) || targetClass.equals(Byte.TYPE))
        return value.byteValue();
    if (targetClass.equals(Character.class) || targetClass.equals(Character.TYPE))
        return value.intValue();
    if (targetClass.equals(Float.class) || targetClass.equals(Float.TYPE))
        return value.floatValue();
    return value;
}

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From source file:com.redhat.rhn.domain.server.ServerGroupFactory.java

/**
 * Returns the value listed by current members column
 * on the rhnServerGroup table.. This was made as a query
 * instead of mapping because this column is only updated
 * by the stored procedures dealing with entitlements..
 * @param sg the server group to get the current members of
 * @return the value of the the currentmemebers column.
 *//*from   w  w w  . j a va2s.com*/
public static Long getCurrentMembers(ServerGroup sg) {
    Map<String, Object> params = new HashMap<String, Object>();
    params.put("sgid", sg.getId());
    Object obj = SINGLETON.lookupObjectByNamedQuery("ServerGroup.lookupCurrentMembersValue", params);
    Number members = (Number) obj;
    if (members == null) {
        return new Long(0);
    }
    return new Long(members.longValue());
}

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