MessageValidator (I2P Anonymous Network - Java Documentation - Version 1.5.0)

java.lang.Object
- net.i2p.router.MessageValidator

```
public class MessageValidator
extends Object
```
Singleton to manage the logic (and historical data) to determine whether a message is valid or not (meaning it isn't expired and hasn't already been received). We'll need a revamp once we start dealing with long message expirations (since it might involve keeping a significant number of entries in memory), but that probably won't be necessary until I2P 3.0.

Constructor Summary

Constructors
Constructor Description

MessageValidator(RouterContext context)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) void`	`shutdown()`
`void`	`startup()`
`String`	`validateMessage(long expiration)`	Only check the expiration for the message
`String`	`validateMessage(long messageId, long expiration)`	Determine if this message should be accepted as valid (not expired, not a duplicate)

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

- Constructor Detail
  - MessageValidator
```
public MessageValidator(RouterContext context)
```
- Method Detail
  - validateMessage
```
public String validateMessage(long messageId,
                              long expiration)
```
    Determine if this message should be accepted as valid (not expired, not a duplicate)
    
    Returns:
    
    reason why the message is invalid (or null if the message is valid)
  - validateMessage
```
public String validateMessage(long expiration)
```
    Only check the expiration for the message
  - startup
```
public void startup()
```
  - shutdown
```
void shutdown()
```