org.mortbay.jetty
Class HttpFields

java.lang.Object
  org.mortbay.jetty.HttpFields

public class HttpFields
extends Object

HTTP Fields. A collection of HTTP header and or Trailer fields. This class is not synchronized and needs to be protected from concurrent access. This class is not synchronized as it is expected that modifications will only be performed by a single thread.

Author:

Greg Wilkins (gregw)

Nested Class Summary

static class

HttpFields.Field

Field Summary

static String	__01Jan1970
static Buffer	__01Jan1970_BUFFER
static DateCache	__dateCache
private static SimpleDateFormat[]	__dateReceive
private static String[]	__dateReceiveFmt
private static int	__dateReceiveInit
private static TimeZone	__GMT
private static Float	__one
private static StringMap	__qualities
static String	__separators
private static Float	__zero
protected HashMap	_bufferMap
private Calendar	_calendar
private StringBuffer	_dateBuffer
protected SimpleDateFormat[]	_dateReceive
protected ArrayList	_fields
protected int	_revision
private static String[]	DAYS
private static String[]	MONTHS

Constructor Summary

HttpFields()
Constructor.

Method Summary

void	add(Buffer name, Buffer value) Add to or set a field.
private void	add(Buffer name, Buffer value, long numValue) Add to or set a field.
void	add(HttpFields fields) Add fields from another HttpFields instance.
void	add(String name, String value) Add to or set a field.
void	addDateField(String name, long date) Sets the value of a date field.
void	addLongField(Buffer name, long value) Sets the value of an long field.
void	addLongField(String name, long value) Sets the value of an long field.
void	addSetCookie(Cookie cookie) Format a set cookie value
void	clear() Clear the header.
boolean	containsKey(Buffer name)
boolean	containsKey(String name)
void	destroy() Destroy the header.
static String	formatDate(Calendar calendar, boolean cookie) Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for cookies
static String	formatDate(long date, boolean cookie) Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for cookies
static void	formatDate(StringBuffer buf, Calendar calendar, boolean cookie) Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for cookies
static String	formatDate(StringBuffer buf, long date, boolean cookie) Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for cookies
Buffer	get(Buffer name)
long	getDateField(String name) Get a header as a date value.
private HttpFields.Field	getField(Buffer name)
private HttpFields.Field	getField(String name)
Enumeration	getFieldNames() Get enumeration of header _names.
Iterator	getFields() Get enumeration of Fields Returns an enumeration of Fields for this request.
long	getLongField(Buffer name) Get a header as an long value.
long	getLongField(String name) Get a header as an long value.
static Float	getQuality(String value)
String	getStringField(Buffer name)
String	getStringField(String name)
Enumeration	getValues(Buffer name) Get multi headers
Enumeration	getValues(String name) Get multi headers
Enumeration	getValues(String name, String separators) Get multi field values with separator.
void	put(Buffer buffer)
void	put(Buffer name, Buffer value) Set a field.
private void	put(Buffer name, Buffer value, long numValue) Set a field.
void	put(Buffer name, String value) Set a field.
void	put(String name, List list) Set a field.
void	put(String name, String value) Set a field.
void	putDateField(String name, long date) Sets the value of a date field.
void	putLongField(String name, long value) Sets the value of an long field.
static List	qualityList(Enumeration e) List values in quality order.
void	remove(Buffer name) Remove a field.
void	remove(String name) Remove a field.
String	toString()
static String	valueParameters(String value, Map parameters) Get field value parameters.
void	write(Writer writer)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

__separators

public static final String __separators

See Also:

Constant Field Values

DAYS

private static String[] DAYS

MONTHS

private static String[] MONTHS

__GMT

private static TimeZone __GMT

__dateCache

public static final DateCache __dateCache

__dateReceiveFmt

private static final String[] __dateReceiveFmt

__dateReceiveInit

private static int __dateReceiveInit

__dateReceive

private static SimpleDateFormat[] __dateReceive

__01Jan1970

public static final String __01Jan1970

__01Jan1970_BUFFER

public static final Buffer __01Jan1970_BUFFER

_fields

protected ArrayList _fields

_revision

protected int _revision

_bufferMap

protected HashMap _bufferMap

_dateReceive

protected SimpleDateFormat[] _dateReceive

_dateBuffer

private StringBuffer _dateBuffer

_calendar

private Calendar _calendar

__one

private static Float __one

__zero

private static Float __zero

__qualities

private static StringMap __qualities

Constructor Detail

HttpFields

public HttpFields()

Constructor.

Method Detail

formatDate

public static String formatDate(long date,
                                boolean cookie)

Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for cookies

formatDate

public static String formatDate(Calendar calendar,
                                boolean cookie)

Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for cookies

formatDate

public static String formatDate(StringBuffer buf,
                                long date,
                                boolean cookie)

Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for cookies

formatDate

public static void formatDate(StringBuffer buf,
                              Calendar calendar,
                              boolean cookie)

Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for cookies

getFieldNames

public Enumeration getFieldNames()

Get enumeration of header _names. Returns an enumeration of strings representing the header _names for this request.

getFields

public Iterator getFields()

Get enumeration of Fields Returns an enumeration of Fields for this request.

getField

private HttpFields.Field getField(String name)

getField

private HttpFields.Field getField(Buffer name)

containsKey

public boolean containsKey(Buffer name)

containsKey

public boolean containsKey(String name)

getStringField

public String getStringField(String name)

Parameters:

name - the case-insensitive field name

Returns:

the value of a field, or null if not found. For multiple fields of the same name, only the first is returned.

getStringField

public String getStringField(Buffer name)

Parameters:

name - the case-insensitive field name

Returns:

the value of a field, or null if not found. For multiple fields of the same name, only the first is returned.

get

public Buffer get(Buffer name)

Parameters:

name - the case-insensitive field name

Returns:

the value of a field, or null if not found. For multiple fields of the same name, only the first is returned.

getValues

public Enumeration getValues(String name)

Get multi headers

Parameters:

name - the case-insensitive field name

Returns:

Enumeration of the values, or null if no such header.

getValues

public Enumeration getValues(Buffer name)

Get multi headers

Parameters:

name - the case-insensitive field name

Returns:

Enumeration of the value Strings, or null if no such header.

getValues

public Enumeration getValues(String name,
                             String separators)

Get multi field values with separator. The multiple values can be represented as separate headers of the same name, or by a single header using the separator(s), or a combination of both. Separators may be quoted.

Parameters:

name - the case-insensitive field name

separators - String of separators.

Returns:

Enumeration of the values, or null if no such header.

put

public void put(String name,
                String value)

Set a field.

Parameters:

name - the name of the field

value - the value of the field. If null the field is cleared.

put

public void put(Buffer name,
                String value)

Set a field.

Parameters:

name - the name of the field

value - the value of the field. If null the field is cleared.

put

public void put(Buffer name,
                Buffer value)

Set a field.

Parameters:

name - the name of the field

value - the value of the field. If null the field is cleared.

put

private void put(Buffer name,
                 Buffer value,
                 long numValue)

Set a field.

Parameters:

name - the name of the field

value - the value of the field. If null the field is cleared.

put

public void put(String name,
                List list)

Set a field.

Parameters:

name - the name of the field

list - the List value of the field. If null the field is cleared.

add

public void add(String name,
                String value)
         throws IllegalArgumentException

Add to or set a field. If the field is allowed to have multiple values, add will add multiple headers of the same name.

Parameters:

name - the name of the field

value - the value of the field.

Throws:

IllegalArgumentException - If the name is a single valued field and already has a value.

add

public void add(Buffer name,
                Buffer value)
         throws IllegalArgumentException

Add to or set a field. If the field is allowed to have multiple values, add will add multiple headers of the same name.

Parameters:

name - the name of the field

value - the value of the field.

Throws:

IllegalArgumentException - If the name is a single valued field and already has a value.

add

private void add(Buffer name,
                 Buffer value,
                 long numValue)
          throws IllegalArgumentException

Add to or set a field. If the field is allowed to have multiple values, add will add multiple headers of the same name.

Parameters:

name - the name of the field

value - the value of the field.

Throws:

IllegalArgumentException - If the name is a single valued field and already has a value.

remove

public void remove(String name)

Remove a field.

Parameters:

name -

remove

public void remove(Buffer name)

Remove a field.

Parameters:

name -

getLongField

public long getLongField(String name)
                  throws NumberFormatException

Get a header as an long value. Returns the value of an integer field or -1 if not found. The case of the field name is ignored.

Parameters:

name - the case-insensitive field name

Throws:

NumberFormatException - If bad long found

getLongField

public long getLongField(Buffer name)
                  throws NumberFormatException

Get a header as an long value. Returns the value of an integer field or -1 if not found. The case of the field name is ignored.

Parameters:

name - the case-insensitive field name

Throws:

NumberFormatException - If bad long found

getDateField

public long getDateField(String name)

Get a header as a date value. Returns the value of a date field, or -1 if not found. The case of the field name is ignored.

Parameters:

name - the case-insensitive field name

putLongField

public void putLongField(String name,
                         long value)

Sets the value of an long field.

Parameters:

name - the field name

value - the field long value

addLongField

public void addLongField(String name,
                         long value)

Sets the value of an long field.

Parameters:

name - the field name

value - the field long value

addLongField

public void addLongField(Buffer name,
                         long value)

Sets the value of an long field.

Parameters:

name - the field name

value - the field long value

putDateField

public void putDateField(String name,
                         long date)

Sets the value of a date field.

Parameters:

name - the field name

date - the field date value

addDateField

public void addDateField(String name,
                         long date)

Sets the value of a date field.

Parameters:

name - the field name

date - the field date value

addSetCookie

public void addSetCookie(Cookie cookie)

Format a set cookie value

Parameters:

cookie - The cookie.

cookie2 - If true, use the alternate cookie 2 header

write

public void write(Writer writer)
           throws IOException

Throws:

IOException

put

public void put(Buffer buffer)
         throws IOException

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

clear

public void clear()

Clear the header.

destroy

public void destroy()

Destroy the header. Help the garbage collector by null everything that we can.

add

public void add(HttpFields fields)

Add fields from another HttpFields instance. Single valued fields are replaced, while all others are added.

Parameters:

fields -

valueParameters

public static String valueParameters(String value,
                                     Map parameters)

Get field value parameters. Some field values can have parameters. This method separates the value from the parameters and optionally populates a map with the paramters. For example:

 
 FieldName : Value ; param1=val1 ; param2=val2
 
 

Parameters:

value - The Field value, possibly with parameteres.

parameters - A map to populate with the parameters, or null

Returns:

The value.

getQuality

public static Float getQuality(String value)

qualityList

public static List qualityList(Enumeration e)

List values in quality order.

Parameters:

enum - Enumeration of values with quality parameters

Returns:

values in quality order.