HostLookupMessage (I2P Anonymous Network - Java Documentation

java.lang.Object
- net.i2p.data.DataStructureImpl
- - net.i2p.data.i2cp.I2CPMessageImpl
  - - net.i2p.data.i2cp.HostLookupMessage

All Implemented Interfaces:

Serializable, DataStructure, I2CPMessage
```
public class HostLookupMessage
extends I2CPMessageImpl
```
Request the router look up the dest for a hash or a host. Replaces DestLookupMessage.

Since:

0.9.11; do not send to routers older than 0.9.11.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static int LOOKUP_HASH

static int LOOKUP_HOST

static int MESSAGE_TYPE

Fields
Modifier and Type	Field	Description
`static int`	`LOOKUP_HASH`
`static int`	`LOOKUP_HOST`
`static int`	`MESSAGE_TYPE`

Constructor Summary

Constructors
Constructor	Description
`HostLookupMessage()`
`HostLookupMessage(SessionId id, String host, long reqID, long timeout)`
`HostLookupMessage(SessionId id, Hash h, long reqID, long timeout)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`doReadMessage(InputStream in, int size)`	Read in the payload part of the message (after the initial 4 byte size and 1 byte type)
`protected byte[]`	`doWriteMessage()`	Write out the payload part of the message (not including the 4 byte size and 1 byte type)
`Hash`	`getHash()`
`String`	`getHostname()`
`int`	`getLookupType()`
`long`	`getReqID()`
`SessionId`	`getSessionId()`
`long`	`getTimeout()`
`int`	`getType()`	Return the unique identifier for this type of message, as specified in the network specification document under #ClientAccessLayerMessages
`SessionId`	`sessionId()`	Return the SessionId for this message.
`String`	`toString()`

Methods inherited from interface net.i2p.data.DataStructure
calculateHash, fromBase64, fromByteArray, toBase64, toByteArray

Methods inherited from class net.i2p.data.DataStructureImpl
calculateHash, fromBase64, fromByteArray, read, toBase64, toByteArray

Methods inherited from class net.i2p.data.i2cp.I2CPMessageImpl
readBytes, readMessage, readMessage, writeBytes, writeMessage

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - MESSAGE_TYPE
```
public static final int MESSAGE_TYPE
```
    See Also:
    
    Constant Field Values
  - LOOKUP_HASH
```
public static final int LOOKUP_HASH
```
    See Also:
    
    Constant Field Values
  - LOOKUP_HOST
```
public static final int LOOKUP_HOST
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - HostLookupMessage
```
public HostLookupMessage()
```
  - HostLookupMessage
```
public HostLookupMessage(SessionId id,
                         Hash h,
                         long reqID,
                         long timeout)
```
    Parameters:
    
    reqID - 0 to 2**32 - 1
    
    timeout - ms 1 to 2**32 - 1
  - HostLookupMessage
```
public HostLookupMessage(SessionId id,
                         String host,
                         long reqID,
                         long timeout)
```
    Parameters:
    
    reqID - 0 to 2**32 - 1
    
    timeout - ms 1 to 2**32 - 1
- Method Detail
  - getSessionId
```
public SessionId getSessionId()
```
  - sessionId
```
public SessionId sessionId()
```
    Return the SessionId for this message.
    
    Specified by:
    
    sessionId in interface I2CPMessage
    
    Overrides:
    
    sessionId in class I2CPMessageImpl
    
    Returns:
    
    null always. Extending classes with a SessionId must override.
    
    Since:
    
    0.9.21
  - getReqID
```
public long getReqID()
```
    Returns:
    
    0 to 2**32 - 1
  - getTimeout
```
public long getTimeout()
```
    Returns:
    
    ms 1 to 2**32 - 1
  - getLookupType
```
public int getLookupType()
```
    Returns:
    
    0 (hash) or 1 (host)
  - getHash
```
public Hash getHash()
```
    Returns:
    
    only valid if lookup type == 0
  - getHostname
```
public String getHostname()
```
    Returns:
    
    only valid if lookup type == 1
  - doReadMessage
```
protected void doReadMessage(InputStream in,
                             int size)
                      throws I2CPMessageException,
                             IOException
```
    Description copied from class: I2CPMessageImpl
    
    Read in the payload part of the message (after the initial 4 byte size and 1 byte type)
    
    Specified by:
    
    doReadMessage in class I2CPMessageImpl
    
    Parameters:
    
    in - InputStream
    
    size - payload size
    
    Throws:
    
    I2CPMessageException
    
    IOException
  - doWriteMessage
```
protected byte[] doWriteMessage()
                         throws I2CPMessageException,
                                IOException
```
    Description copied from class: I2CPMessageImpl
    
    Write out the payload part of the message (not including the 4 byte size and 1 byte type)
    
    Specified by:
    
    doWriteMessage in class I2CPMessageImpl
    
    Returns:
    
    byte array
    
    Throws:
    
    I2CPMessageException
    
    IOException
  - getType
```
public int getType()
```
    Description copied from interface: I2CPMessage
    
    Return the unique identifier for this type of message, as specified in the network specification document under #ClientAccessLayerMessages
    
    Returns:
    
    unique identifier for this type of message
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class HostLookupMessage

Field Summary

Constructor Summary

Method Summary

Methods inherited from interface net.i2p.data.DataStructure

Methods inherited from class net.i2p.data.DataStructureImpl

Methods inherited from class net.i2p.data.i2cp.I2CPMessageImpl

Methods inherited from class java.lang.Object

Field Detail

MESSAGE_TYPE

LOOKUP_HASH

LOOKUP_HOST

Constructor Detail

HostLookupMessage

HostLookupMessage

HostLookupMessage

Method Detail

getSessionId

sessionId

getReqID

getTimeout

getLookupType

getHash

getHostname

doReadMessage

doWriteMessage

getType

toString