inet.ipaddr.format

Class AddressDivisionGrouping

  • java.lang.Object
    • inet.ipaddr.format.AddressDivisionGrouping
    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class and Description
      static class  AddressDivisionGrouping.StringOptions
      Represents a clear way to create a specific type of string.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method and Description
      int compareTo(AddressDivisionGrouping other) 
      boolean containsPrefixBlock(int prefixLength)
      Returns whether the values of this division grouping contain the prefix block for the given prefix length
      boolean containsSinglePrefixBlock(int prefixLength)
      Returns whether the values of this division grouping match the prefix block for the given prefix length
      boolean equals(java.lang.Object o) 
      int getBitCount() 
      byte[] getBytes()
      Gets the bytes for the lowest address in the range represented by this address.
      byte[] getBytes(byte[] bytes)
      Gets the value for the lowest address in the range represented by this address division.
      java.math.BigInteger getCount()
      gets the count of addresses that this address may represent If this address division grouping is not a subnet block of multiple addresses or has no range of values, then there is only one such address.
      AddressDivision getDivision(int index) 
      int getDivisionCount() 
      java.lang.String[] getDivisionStrings()
      Get standard-format strings for each of the divisions in the series.
      int getMinPrefixLengthForBlock()
      Returns the smallest prefix length possible such that this address division grouping includes the block of addresses for that prefix.
      java.math.BigInteger getPrefixCount()
      If this has a prefix length, the count of the range of values in the prefix.
      java.lang.Integer getPrefixLength()
      The bit-length of the portion of the address that is not specific to an individual address but common amongst a group of addresses.
      java.lang.Integer getPrefixLengthForSingleBlock()
      Returns a prefix length for which the range of this segment grouping matches the the block of addresses for that prefix.
      byte[] getUpperBytes()
      Gets the bytes for the highest address in the range represented by this address.
      byte[] getUpperBytes(byte[] bytes)
      Copies the bytes of the largest address item represented by this address item into the supplied array, and returns that array.
      java.math.BigInteger getUpperValue() 
      java.math.BigInteger getValue() 
      int hashCode() 
      boolean includesMax() 
      boolean includesZero() 
      boolean isFullRange() 
      boolean isMax() 
      int isMore(AddressDivisionSeries other)
      Use this method to compare the counts of two address series.
      boolean isMultiple()
      Whether this represents multiple potential values (eg a prefixed address or a segment representing a range of values)
      boolean isPrefixBlock()
      Returns whether this address segment series represents a block of addresses associated with its prefix length.
      boolean isPrefixed()
      Whether there exists a prefix.
      boolean isSinglePrefixBlock()
      Returns whether the range of values matches a single subnet block for the prefix length
      boolean isZero() 
      java.lang.String toString() 
      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait
    • Constructor Detail

      • AddressDivisionGrouping

        public AddressDivisionGrouping(AddressDivision[] divisions)
      • AddressDivisionGrouping

        public AddressDivisionGrouping(AddressDivision[] divisions,
                                       boolean checkDivisions)
    • Method Detail

      • getBitCount

        public int getBitCount()
        Specified by:
        getBitCount in interface AddressItem
        Returns:
        the number of bits comprising this address item
      • getBytes

        public byte[] getBytes()
        Gets the bytes for the lowest address in the range represented by this address.

        Since bytes are signed values while addresses are unsigned, values greater than 127 are represented as the (negative) two's complement value of the actual value. You can get the unsigned integer value i from byte b using i = 0xff & b.

        Specified by:
        getBytes in interface AddressItem
        Returns:
      • getBytes

        public byte[] getBytes(byte[] bytes)
        Gets the value for the lowest address in the range represented by this address division.

        If the value fits in the specified array, the same array is returned with the value. Otherwise, a new array is allocated and returned with the value.

        You can use getBitCount() to determine the required array length for the bytes.

        Since bytes are signed values while addresses are unsigned, values greater than 127 are represented as the (negative) two's complement value of the actual value. You can get the unsigned integer value i from byte b using i = 0xff & b.

        Specified by:
        getBytes in interface AddressItem
        Returns:
      • getUpperBytes

        public byte[] getUpperBytes()
        Gets the bytes for the highest address in the range represented by this address.
        Specified by:
        getUpperBytes in interface AddressItem
        Returns:
      • getUpperBytes

        public byte[] getUpperBytes(byte[] bytes)
        Description copied from interface: AddressItem
        Copies the bytes of the largest address item represented by this address item into the supplied array, and returns that array. If the supplied array is null or of insufficient size, a new array is created and returned.
        Specified by:
        getUpperBytes in interface AddressItem
        Returns:
        the bytes of the largest address represented by this address item.
      • getValue

        public java.math.BigInteger getValue()
        Specified by:
        getValue in interface AddressDivisionSeries
        Returns:
        the value of the lowest address item represented by this address division series
      • getUpperValue

        public java.math.BigInteger getUpperValue()
        Specified by:
        getUpperValue in interface AddressDivisionSeries
        Returns:
        the value of the highest address item represented by this address division series
      • getPrefixLength

        public java.lang.Integer getPrefixLength()
        Description copied from interface: AddressDivisionSeries
        The bit-length of the portion of the address that is not specific to an individual address but common amongst a group of addresses.

        Typically this is the largest number of bits in the upper-most portion of the section for which the remaining bits assume all possible values.

        For IP addresses, this must be explicitly defined when the address is created. For example, 1.2.0.0/16 has a prefix length of 16, while 1.2.*.* has no prefix length, even though they both represent the same set of addresses and are considered equal. Prefixes can be considered variable for any given IP addresses and can depend on the routing table.

        The methods AddressDivisionSeries.getMinPrefixLengthForBlock() and AddressDivisionSeries.getPrefixLengthForSingleBlock() can help you to obtain or define a prefix length if one does not exist already. 1.2.0.0/16 and 1.2.*.* both the same equivalent and minimum prefix length of 16.

        For MAC addresses, the prefix is initially defined by the range, so 1:2:3:*:*:* has a prefix length of 24 by definition. Addresses derived from the original may retain the original prefix length regardless of their range.

        Specified by:
        getPrefixLength in interface AddressDivisionSeries
      • getMinPrefixLengthForBlock

        public int getMinPrefixLengthForBlock()
        Returns the smallest prefix length possible such that this address division grouping includes the block of addresses for that prefix.
        Specified by:
        getMinPrefixLengthForBlock in interface AddressDivisionSeries
        Returns:
        the prefix length
      • getPrefixLengthForSingleBlock

        public java.lang.Integer getPrefixLengthForSingleBlock()
        Returns a prefix length for which the range of this segment grouping matches the the block of addresses for that prefix. If no such prefix exists, returns null If this segment grouping represents a single value, returns the bit length
        Specified by:
        getPrefixLengthForSingleBlock in interface AddressDivisionSeries
        Returns:
        the prefix length or null
      • getCount

        public java.math.BigInteger getCount()
        gets the count of addresses that this address may represent If this address division grouping is not a subnet block of multiple addresses or has no range of values, then there is only one such address.
        Specified by:
        getCount in interface AddressItem
        Returns:
      • isMore

        public int isMore(AddressDivisionSeries other)
        Description copied from interface: AddressDivisionSeries
        Use this method to compare the counts of two address series. Rather than calculating counts with getCount(), there can be more efficient ways of comparing whether one series represents more individual address series than another.
        Specified by:
        isMore in interface AddressDivisionSeries
        Returns:
        a positive integer if this AddressDivisionSeries has a larger count than the provided, 0 if they are the same, a negative integer if the other has a larger count.
      • isMultiple

        public boolean isMultiple()
        Description copied from interface: AddressItem
        Whether this represents multiple potential values (eg a prefixed address or a segment representing a range of values)
        Specified by:
        isMultiple in interface AddressItem
        Returns:
        whether this address represents more than one address. Such addresses include CIDR/IP addresses (eg 1.2.3.4/11) or wildcard addresses (eg 1.2.*.4) or range addresses (eg 1.2.3-4.5)
      • isPrefixBlock

        public boolean isPrefixBlock()
        Description copied from interface: AddressDivisionSeries
        Returns whether this address segment series represents a block of addresses associated with its prefix length.

        This returns false if it has no prefix length or if it is a range of addresses that does not include the entire subnet block for the prefix length.

        If AddressNetwork.getPrefixConfiguration() is set to consider all prefixes as subnets, this returns true for any series with a prefix length.

        Specified by:
        isPrefixBlock in interface AddressDivisionSeries
        Returns:
      • containsPrefixBlock

        public boolean containsPrefixBlock(int prefixLength)
        Returns whether the values of this division grouping contain the prefix block for the given prefix length
        Specified by:
        containsPrefixBlock in interface AddressDivisionSeries
        Parameters:
        prefixLength -
        Returns:
      • containsSinglePrefixBlock

        public boolean containsSinglePrefixBlock(int prefixLength)
        Returns whether the values of this division grouping match the prefix block for the given prefix length
        Specified by:
        containsSinglePrefixBlock in interface AddressDivisionSeries
        Parameters:
        prefixLength -
        Returns:
      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object
      • equals

        public boolean equals(java.lang.Object o)
        Overrides:
        equals in class java.lang.Object
      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object
      • isZero

        public boolean isZero()
        Specified by:
        isZero in interface AddressItem
        Returns:
        whether this item matches the value of zero
      • includesZero

        public boolean includesZero()
        Specified by:
        includesZero in interface AddressItem
        Returns:
        whether this item includes the value of zero within its range
      • isMax

        public boolean isMax()
        Specified by:
        isMax in interface AddressItem
        Returns:
        whether this item matches the maximum possible value
      • includesMax

        public boolean includesMax()
        Specified by:
        includesMax in interface AddressItem
        Returns:
        whether this item includes the maximum possible value within its range
      • isFullRange

        public boolean isFullRange()
        Specified by:
        isFullRange in interface AddressItem
        Returns:
        whether this address item represents all possible values attainable by an address item of this type, or in other words, both includesZero() and includesMax() return true