io.netty.handler.codec

类 HeadersUtils

java.lang.Object

io.netty.handler.codec.HeadersUtils

public final class HeadersUtils
extends java.lang.Object

Provides utility methods related to Headers.

方法概要

限定符和类型	方法和说明
static <K,V> java.util.List<java.lang.String>	getAllAsString(Headers<K,V,?> headers, K name) Headers.get(Object) and convert each element of List to a String.
static <K,V> java.lang.String	getAsString(Headers<K,V,?> headers, K name) Headers.get(Object) and convert the result to a String.
static java.util.Iterator<java.util.Map.Entry<java.lang.String,java.lang.String>>	iteratorAsString(java.lang.Iterable<java.util.Map.Entry<java.lang.CharSequence,java.lang.CharSequence>> headers) Headers.iterator() which converts each Map.Entry's key and value to a String.
static java.util.Set<java.lang.String>	namesAsString(Headers<java.lang.CharSequence,java.lang.CharSequence,?> headers) Headers.names() and convert each element of Set to a String.
static <K,V> java.lang.String	toString(java.lang.Class<?> headersClass, java.util.Iterator<java.util.Map.Entry<K,V>> headersIt, int size) Helper for implementing toString for DefaultHeaders and wrappers such as DefaultHttpHeaders.

从类继承的方法 java.lang.Object

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

方法详细资料

getAllAsString

public static <K,V> java.util.List<java.lang.String> getAllAsString(Headers<K,V,?> headers,
                                                                    K name)

Headers.get(Object) and convert each element of List to a String.

参数:

name - the name of the header to retrieve

返回:

a List of header values or an empty List if no values are found.

getAsString

public static <K,V> java.lang.String getAsString(Headers<K,V,?> headers,
                                                 K name)

Headers.get(Object) and convert the result to a String.

参数:

headers - the headers to get the name from

name - the name of the header to retrieve

返回:

the first header value if the header is found. null if there's no such entry.

iteratorAsString

public static java.util.Iterator<java.util.Map.Entry<java.lang.String,java.lang.String>> iteratorAsString(java.lang.Iterable<java.util.Map.Entry<java.lang.CharSequence,java.lang.CharSequence>> headers)

Headers.iterator() which converts each Map.Entry's key and value to a String.

toString

public static <K,V> java.lang.String toString(java.lang.Class<?> headersClass,
                                              java.util.Iterator<java.util.Map.Entry<K,V>> headersIt,
                                              int size)

Helper for implementing toString for DefaultHeaders and wrappers such as DefaultHttpHeaders.

参数:

headersClass - the class of headers

headersIt - the iterator on the actual headers

size - the size of the iterator

返回:

a String representation of the headers

namesAsString

public static java.util.Set<java.lang.String> namesAsString(Headers<java.lang.CharSequence,java.lang.CharSequence,?> headers)

Headers.names() and convert each element of Set to a String.

参数:

headers - the headers to get the names from

返回:

a Set of header values or an empty Set if no values are found.