org.apache.hadoop.registry.client.types

Interface AddressTypes

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public interface AddressTypes

Enum of address types -as integers. Why integers and not enums? Cross platform serialization as JSON

Field Summary

Fields

Modifier and Type	Field and Description
static String	ADDRESS_HOSTNAME_AND_PORT hostname/FQDN and port pair: "host/port".
static String	ADDRESS_HOSTNAME_FIELD
static String	ADDRESS_OTHER Any other address: "".
static String	ADDRESS_PATH Path /a/b/c style: "path".
static String	ADDRESS_PORT_FIELD
static String	ADDRESS_URI URI entries: "uri".
static String	ADDRESS_ZOOKEEPER Zookeeper addresses as a triple : "zktriple".

Field Detail

ADDRESS_HOSTNAME_AND_PORT

static final String ADDRESS_HOSTNAME_AND_PORT

hostname/FQDN and port pair: "host/port". The host/domain name and port are set as separate strings in the address list, e.g.

   ["namenode.example.org", "9870"]
 

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Constant Field Values

ADDRESS_HOSTNAME_FIELD

static final String ADDRESS_HOSTNAME_FIELD

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Constant Field Values

ADDRESS_PORT_FIELD

static final String ADDRESS_PORT_FIELD

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Constant Field Values

ADDRESS_PATH

static final String ADDRESS_PATH

Path /a/b/c style: "path". The entire path is encoded in a single entry

   ["/users/example/dataset"]
 

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Constant Field Values

ADDRESS_URI

static final String ADDRESS_URI

URI entries: "uri".

   ["http://example.org"]
 

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Constant Field Values

ADDRESS_ZOOKEEPER

static final String ADDRESS_ZOOKEEPER

Zookeeper addresses as a triple : "zktriple".

These are provide as a 3 element tuple of: hostname, port and optionally path (depending on the application)

A single element would be

   ["zk1","2181","/registry"]
 

An endpoint with multiple elements would list them as

   [
    ["zk1","2181","/registry"]
    ["zk2","1600","/registry"]
   ]
 

the third element in each entry , the path, MUST be the same in each entry. A client reading the addresses of an endpoint is free to pick any of the set, so they must be the same.

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Constant Field Values

ADDRESS_OTHER

static final String ADDRESS_OTHER

Any other address: "".

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Constant Field Values