Package org.eclipse.jetty.http2.hpack

Class HpackContext

java.lang.Object

org.eclipse.jetty.http2.hpack.HpackContext

public class HpackContext
extends java.lang.Object

HPACK - Header Compression for HTTP/2

This class maintains the compression context for a single HTTP/2 connection. Specifically it holds the static and dynamic Header Field Tables and the associated sizes and limits.

It is compliant with draft 11 of the specification

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	HpackContext.DynamicTable
static class	HpackContext.Entry
static class	HpackContext.StaticEntry

Field Summary

Fields

Modifier and Type	Field	Description
private static java.util.Map<org.eclipse.jetty.http.HttpField,HpackContext.Entry>	__staticFieldMap
private static org.eclipse.jetty.util.Trie<HpackContext.StaticEntry>	__staticNameMap
private static HpackContext.StaticEntry[]	__staticTable
private static HpackContext.StaticEntry[]	__staticTableByHeader
private HpackContext.DynamicTable	_dynamicTable
private java.util.Map<org.eclipse.jetty.http.HttpField,HpackContext.Entry>	_fieldMap
private int	_maxTableSize
private java.util.Map<java.lang.String,HpackContext.Entry>	_nameMap
private int	_tableSize
static int	DEFAULT_MAX_TABLE_CAPACITY
private static java.lang.String	EMPTY
static org.eclipse.jetty.util.log.Logger	LOG
static int	STATIC_SIZE
static java.lang.String[][]	STATIC_TABLE

Constructor Summary

Constructors

Constructor	Description
HpackContext(int maxTableSize)

Method Summary

Modifier and Type	Method	Description
HpackContext.Entry	add(org.eclipse.jetty.http.HttpField field)
HpackContext.Entry	get(int index)
HpackContext.Entry	get(java.lang.String name)
HpackContext.Entry	get(org.eclipse.jetty.http.HttpField field)
HpackContext.Entry	get(org.eclipse.jetty.http.HttpHeader header)
int	getDynamicTableSize()
int	getMaxDynamicTableSize()
static HpackContext.Entry	getStatic(org.eclipse.jetty.http.HttpHeader header)
int	index(HpackContext.Entry entry)
void	resize(int newMaxDynamicTableSize)
int	size()
static int	staticIndex(org.eclipse.jetty.http.HttpHeader header)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.eclipse.jetty.util.log.Logger LOG

EMPTY

private static final java.lang.String EMPTY

See Also:

Constant Field Values

STATIC_TABLE

public static final java.lang.String[][] STATIC_TABLE

__staticFieldMap

private static final java.util.Map<org.eclipse.jetty.http.HttpField,HpackContext.Entry> __staticFieldMap

__staticNameMap

private static final org.eclipse.jetty.util.Trie<HpackContext.StaticEntry> __staticNameMap

__staticTableByHeader

private static final HpackContext.StaticEntry[] __staticTableByHeader

__staticTable

private static final HpackContext.StaticEntry[] __staticTable

STATIC_SIZE

public static final int STATIC_SIZE

DEFAULT_MAX_TABLE_CAPACITY

public static final int DEFAULT_MAX_TABLE_CAPACITY

See Also:

Constant Field Values

_dynamicTable

private final HpackContext.DynamicTable _dynamicTable

_fieldMap

private final java.util.Map<org.eclipse.jetty.http.HttpField,HpackContext.Entry> _fieldMap

_nameMap

private final java.util.Map<java.lang.String,HpackContext.Entry> _nameMap

_maxTableSize

private int _maxTableSize

_tableSize

private int _tableSize

Constructor Detail

HpackContext

HpackContext(int maxTableSize)

Method Detail

resize

public void resize(int newMaxDynamicTableSize)

get

public HpackContext.Entry get(org.eclipse.jetty.http.HttpField field)

get

public HpackContext.Entry get(java.lang.String name)

get

public HpackContext.Entry get(int index)

get

public HpackContext.Entry get(org.eclipse.jetty.http.HttpHeader header)

getStatic

public static HpackContext.Entry getStatic(org.eclipse.jetty.http.HttpHeader header)

add

public HpackContext.Entry add(org.eclipse.jetty.http.HttpField field)

size

public int size()

Returns:

Current dynamic table size in entries

getDynamicTableSize

public int getDynamicTableSize()

Returns:

Current Dynamic table size in Octets

getMaxDynamicTableSize

public int getMaxDynamicTableSize()

Returns:

Max Dynamic table size in Octets

index

public int index(HpackContext.Entry entry)

staticIndex

public static int staticIndex(org.eclipse.jetty.http.HttpHeader header)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object