io.opentracing.propagation

Class TextMapExtractAdapter

java.lang.Object

io.opentracing.propagation.TextMapExtractAdapter

All Implemented Interfaces:

TextMapExtract, Iterable<Map.Entry<String,String>>

Direct Known Subclasses:

TextMapAdapter

public class TextMapExtractAdapter
extends Object
implements TextMapExtract

A TextMap carrier for use with Tracer.extract() ONLY (it has no mutating methods). Note that the TextMap interface can be made to wrap around arbitrary data types (not just Map<String, String> as illustrated here).

See Also:

Tracer.extract(Format, Object)

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,String>	map

Constructor Summary

Constructors

Constructor and Description
TextMapExtractAdapter(Map<String,String> map)

Method Summary

Modifier and Type	Method and Description
Iterator<Map.Entry<String,String>>	iterator() Gets an iterator over arbitrary key:value pairs from the TextMapReader.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

map

protected final Map<String,String> map

Constructor Detail

TextMapExtractAdapter

public TextMapExtractAdapter(Map<String,String> map)

Method Detail

iterator

public Iterator<Map.Entry<String,String>> iterator()

Description copied from interface: TextMapExtract

Gets an iterator over arbitrary key:value pairs from the TextMapReader.

Specified by:

iterator in interface TextMapExtract

Specified by:

iterator in interface Iterable<Map.Entry<String,String>>

Returns:

entries in the TextMap backing store; note that for some Formats, the iterator may include entries that were never injected by a Tracer implementation (e.g., unrelated HTTP headers)

See Also:

Tracer.extract(Format, Object), Format.Builtin.TEXT_MAP, Format.Builtin.HTTP_HEADERS