| java.lang.Object
 org.apache.harmony.jndi.provider.dns.ProviderMgr
| ProviderMgr | | public class ProviderMgr (Code) | | Contains some useful routines that are used in other classes.
|
| Method Summary | |
| public static boolean | checkBit(int value, int mask)
Checks if any of specified bits is set. | | public static String | getIpStr(byte[] ip)
Creates the text representation of IPv4 address. | | public static int | getMatchingCount(String name1, String name2)
Compares two labels and returns the matching count (number of the
matching labels down from the root). | | public static String | getParentName(String name)
Returns the name of parent DNS zone for given zone. | | public static int | getRecordClassNumber(String str)
| | public static int | getRecordTypeNumber(String str)
| | public static boolean | namesAreEqual(String name1, String name2)
Compares two DNS names. | | public static String | normalizeName(String zone)
Converts all letters to lower case and adds "." to the end of zone name
if necessary. | | public static int | parse16Int(byte[] buffer, int idx)
Parses 16 bit integer. | | public static long | parse32Int(byte[] buffer, int idx)
Parses 32 bit integer. | | public static int | parse8Int(byte[] buffer, int idx)
Parses 8 bit integer. | | public static int | parseCharString(byte[] mesBytes, int startIdx, StringBuffer result)
Parses the string of characters preceded with length octet. | | public static byte[] | parseIpStr(String ipStr)
Parses the text representation of IPv4 address.
Parameters:
ipStr - string in n.n.n.n format. | | public static int | parseName(byte[] mesBytes, int startIdx, StringBuffer result)
Parses the domain name from the sequence of bytes. | | public static int | setBit(int value, int mask, boolean bit)
Sets or drops specific bit(s) of the given number. | | public static int | write16Int(int value, byte[] buffer, int startIdx)
| | public static int | write32Int(long value, byte[] buffer, int startIdx)
| | public static int | writeCharString(String value, byte[] buffer, int startIdx)
Writes character string preceded with length octet. | | public static int | writeName(String name, byte[] buffer, int startIdx)
Parses the given domain name and converts it into
length label length label ... |
| CHECK_NAMES | | final static boolean CHECK_NAMES(Code) | | |
| LOG_DEBUG | | final static int LOG_DEBUG(Code) | | |
| LOG_ERROR | | final static int LOG_ERROR(Code) | | |
| LOG_NONE | | final static int LOG_NONE(Code) | | |
| LOG_WARNING | | final static int LOG_WARNING(Code) | | |
| checkBit | | public static boolean checkBit(int value, int mask)(Code) | | Checks if any of specified bits is set.
Parameters:
value - the number to look at
Parameters:
mask - a bit mask true of false |
| getIpStr | | public static String getIpStr(byte[] ip)(Code) | | Creates the text representation of IPv4 address.
Parameters:
ip - the first four bytes should contain an IPv4 address string in n.n.n.n format
throws:
java.lang.IllegalArgumentException - if given array has the length less than four |
| getMatchingCount | | public static int getMatchingCount(String name1, String name2)(Code) | | Compares two labels and returns the matching count (number of the
matching labels down from the root).
Parameters:
name1 - first name
Parameters:
name2 - second name number of equal labels from the root to leaves |
| getParentName | | public static String getParentName(String name)(Code) | | Returns the name of parent DNS zone for given zone.
Parameters:
name - the current DNS zone name the name of the parent |
| getRecordClassNumber | | public static int getRecordClassNumber(String str)(Code) | |
Parameters:
str - string name of the DNS record class integer number for the class; -1 if not found |
| getRecordTypeNumber | | public static int getRecordTypeNumber(String str)(Code) | |
Parameters:
str - string name of the DNS record type integer number for the type; -1 if not found |
| namesAreEqual | | public static boolean namesAreEqual(String name1, String name2)(Code) | | Compares two DNS names.
- Case insensitive
- Appends "." to the end of the name if necessary before comparison
Parameters:
name1 - name1
Parameters:
name2 - name2 true if names are equal; falseotherwise |
| normalizeName | | public static String normalizeName(String zone)(Code) | | Converts all letters to lower case and adds "." to the end of zone name
if necessary.
Parameters:
zone - zone name expanded zone name |
| parse16Int | | public static int parse16Int(byte[] buffer, int idx)(Code) | | Parses 16 bit integer. Buffer index should be updated manually after call
to this method.
Parameters:
buffer - sequence of bytes
Parameters:
startIdx - the index to start at parsed integer value |
| parse32Int | | public static long parse32Int(byte[] buffer, int idx)(Code) | | Parses 32 bit integer. Buffer index should be updated manually after call
to this method.
Parameters:
buffer - sequence of bytes
Parameters:
startIdx - the index to start at parsed integer value |
| parse8Int | | public static int parse8Int(byte[] buffer, int idx)(Code) | | Parses 8 bit integer. Buffer index should be updated manually after call
to this method.
Parameters:
buffer - sequence of bytes
Parameters:
startIdx - the index to start at parsed integer value |
| parseCharString | | public static int parseCharString(byte[] mesBytes, int startIdx, StringBuffer result)(Code) | | Parses the string of characters preceded with length octet.
Parameters:
mesBytes - message bytes
Parameters:
startIdx - the index to start parsing from
Parameters:
result - string buffer to write the result too updated index |
| parseName | | public static int parseName(byte[] mesBytes, int startIdx, StringBuffer result) throws DomainProtocolException(Code) | | Parses the domain name from the sequence of bytes.
Parameters:
mesBytes - byte representation of the message
Parameters:
startIdx - the position to start the parsing at
Parameters:
result - the string buffer to store parsed strings into updated index of mesBytes array
throws:
DomainProtocolException - if something went wrong |
| setBit | | public static int setBit(int value, int mask, boolean bit)(Code) | | Sets or drops specific bit(s) of the given number.
Parameters:
value - target integer value
Parameters:
mask - specifies bit(s) position(s)
Parameters:
bit - set if true, drop if false updated value |
| write16Int | | public static int write16Int(int value, byte[] buffer, int startIdx)(Code) | | Writes a 16-bit integer value into the buffer, high byte first
Parameters:
value - the value to write, first 16 bits will be taken
Parameters:
buffer - the buffer to write into
Parameters:
startIdx - a starting index updated index |
| write32Int | | public static int write32Int(long value, byte[] buffer, int startIdx)(Code) | | Writes a 32-bit integer value into the buffer, highest byte first
Parameters:
value - the value to write, first 32 bits will be taken
Parameters:
buffer - the buffer to write into
Parameters:
startIdx - a starting index updated index |
| writeCharString | | public static int writeCharString(String value, byte[] buffer, int startIdx) throws DomainProtocolException(Code) | | Writes character string preceded with length octet.
Parameters:
value - string value to write
Parameters:
buffer - buffer to write to
Parameters:
startIdx - index in buffer to start from updated index
throws:
NullPointerException - if some argument is null
throws:
DomainProtocolException - if string is too long |
| writeName | | public static int writeName(String name, byte[] buffer, int startIdx) throws DomainProtocolException(Code) | | Parses the given domain name and converts it into
length label length label ... length label sequence of
bytes.
Parameters:
name - a domain name, a dot-separated list of labels
Parameters:
buffer - target buffer in which the result will be written
Parameters:
startIdx - the index to start at while writing to the buffer array updated index of the buffer array |
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