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

All Implemented Interfaces:

Service

Direct Known Subclasses:

CommSystemFacadeImpl, VMCommSystem
```
public abstract class CommSystemFacade
extends Object
implements Service
```
Manages the communication subsystem between peers, including connections, listeners, transports, connection keys, etc.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class CommSystemFacade.Status
Since the codes may change.

Field Summary

Fields
Modifier and Type	Field	Description
`protected static String`	`ROUTER_BUNDLE_NAME`
`static short`	`STATUS_DIFFERENT`	We are behind a symmetric NAT which will make our 'from' address look differently when we talk to multiple people
`static short`	`STATUS_DISCONNECTED`	We have no network interface at all enabled transports
`static short`	`STATUS_HOSED`	Our detection system is broken (SSU bind port failed)
`static short`	`STATUS_IPV4_DISABLED_IPV6_FIREWALLED`	We have an IPv6 transport enabled and a public IPv6 address.
`static short`	`STATUS_IPV4_DISABLED_IPV6_OK`	We have an IPv6 transport enabled and a public IPv6 address.
`static short`	`STATUS_IPV4_DISABLED_IPV6_UNKNOWN`	We have an IPv6 transport enabled and a public IPv6 address.
`static short`	`STATUS_IPV4_FIREWALLED_IPV6_OK`	We have an IPv6 transport enabled and a public IPv6 address.
`static short`	`STATUS_IPV4_FIREWALLED_IPV6_UNKNOWN`	We have an IPv6 transport enabled and a public IPv6 address.
`static short`	`STATUS_IPV4_OK_IPV6_FIREWALLED`	We have an IPv6 transport enabled and a public IPv6 address.
`static short`	`STATUS_IPV4_OK_IPV6_UNKNOWN`	We have an IPv6 transport enabled and a public IPv6 address.
`static short`	`STATUS_IPV4_SNAT_IPV6_OK`	We are behind a symmetric NAT which will make our 'from' address look differently when we talk to multiple people We can receive unsolicited connections on IPv6.
`static short`	`STATUS_IPV4_SNAT_IPV6_UNKNOWN`	We are behind a symmetric NAT which will make our 'from' address look differently when we talk to multiple people We might be able to receive unsolicited connections on IPv6.
`static short`	`STATUS_IPV4_UNKNOWN_IPV6_FIREWALLED`	We have an IPv6 transport enabled and a public IPv6 address.
`static short`	`STATUS_IPV4_UNKNOWN_IPV6_OK`	We have an IPv6 transport enabled and a public IPv6 address.
`static short`	`STATUS_OK`	These must be increasing in "badness" (see TransportManager.java), but UNKNOWN must be last.
`static short`	`STATUS_REJECT_UNSOLICITED`	We are able to talk to peers that we initiate communication with, but cannot receive unsolicited connections, i.e.
`static short`	`STATUS_UNKNOWN`	Our reachability is unknown on all

Constructor Summary

Constructors
Constructor Description

CommSystemFacade()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`abstract int`	`countActivePeers()`	How many peers are we currently connected to, that we have sent a message to or received a message from in the last five minutes.
`abstract int`	`countActiveSendPeers()`	How many peers are we currently connected to, that we have sent a message to in the last minute.
`List<RouterAddress>`	`createAddresses()`	Create the list of RouterAddress structures based on the router's config
`void`	`forceDisconnect(Hash peer)`	Tell the comm system to disconnect from this peer.
`String`	`getCountry(Hash peer)`
`String`	`getCountryName(String code)`
`DHSessionKeyBuilder.Factory`	`getDHFactory()`	Hook for pluggable transport creation.
`abstract Set<Hash>`	`getEstablished()`	Get all the peers we are connected to.
`long`	`getFramedAveragePeerClockSkew(int percentToInclude)`	Return framed average clock skew of connected peers in seconds, or null if we cannot answer.
`byte[]`	`getIP(Hash dest)`
`String`	`getLocalizedStatusString()`	getStatus().toStatusString(), translated if available.
`Long`	`getMedianPeerClockSkew()`	Median clock skew of connected peers in seconds, or null if we cannot answer.
`List<String>`	`getMostRecentErrorMessages()`
`String`	`getOurCountry()`
`short`	`getReachabilityStatus()`	Deprecated. use getStatus()
`CommSystemFacade.Status`	`getStatus()`	Determine under what conditions we are remotely reachable.
`SortedMap<String,Transport>`	`getTransports()`
`X25519KeyFactory`	`getXDHFactory()`	Factory for making X25519 key pairs.
`boolean`	`haveHighOutboundCapacity()`
`boolean`	`haveInboundCapacity(int pct)`
`boolean`	`haveOutboundCapacity(int pct)`
`void`	`initGeoIP()`	Router must call after netdb is initialized
`boolean`	`isBacklogged(Hash peer)`
`boolean`	`isDummy()`
`abstract boolean`	`isEstablished(Hash peer)`
`boolean`	`isInStrictCountry()`
`boolean`	`isInStrictCountry(Hash peer)`
`boolean`	`isInStrictCountry(RouterInfo ri)`
`void`	`mayDisconnect(Hash peer)`	Tell the comm system that we may disconnect from this peer.
`void`	`notifyRemoveAddress(boolean ipv6)`	Tell other transports our address changed
`void`	`notifyRemoveAddress(RouterAddress address)`	Tell other transports our address changed
`void`	`notifyReplaceAddress(RouterAddress address)`	Tell other transports our address changed
`abstract void`	`processMessage(OutNetMessage msg)`
`void`	`queueLookup(byte[] ip)`
`void`	`recheckReachability()`	Deprecated. unused
`void`	`registerTransport(Transport t)`	Pluggable transport
`String`	`renderPeerHTML(Hash peer)`
`void`	`renderStatusHTML(Writer out)`
`void`	`renderStatusHTML(Writer out, String urlBase, int sortFlags)`
`void`	`unregisterTransport(Transport t)`	Pluggable transport
`boolean`	`wasUnreachable(Hash peer)`

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

Methods inherited from interface net.i2p.router.Service
restart, shutdown, startup

- Field Detail
  - ROUTER_BUNDLE_NAME
```
protected static final String ROUTER_BUNDLE_NAME
```
    Since:
    
    0.9.45
    
    See Also:
    
    Constant Field Values
  - STATUS_OK
```
public static final short STATUS_OK
```
    These must be increasing in "badness" (see TransportManager.java), but UNKNOWN must be last. We are able to receive unsolicited connections on all enabled transports
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_OK_IPV6_UNKNOWN
```
public static final short STATUS_IPV4_OK_IPV6_UNKNOWN
```
    We have an IPv6 transport enabled and a public IPv6 address. We can receive unsolicited connections on IPv4. We might be able to receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_OK_IPV6_FIREWALLED
```
public static final short STATUS_IPV4_OK_IPV6_FIREWALLED
```
    We have an IPv6 transport enabled and a public IPv6 address. We can receive unsolicited connections on IPv4. We cannot receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_UNKNOWN_IPV6_OK
```
public static final short STATUS_IPV4_UNKNOWN_IPV6_OK
```
    We have an IPv6 transport enabled and a public IPv6 address. We may be able to receive unsolicited connections on IPv4. We can receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_FIREWALLED_IPV6_OK
```
public static final short STATUS_IPV4_FIREWALLED_IPV6_OK
```
    We have an IPv6 transport enabled and a public IPv6 address. We cannot receive unsolicited connections on IPv4. We can receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_DISABLED_IPV6_OK
```
public static final short STATUS_IPV4_DISABLED_IPV6_OK
```
    We have an IPv6 transport enabled and a public IPv6 address. IPv4 is disabled. We can receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_SNAT_IPV6_OK
```
public static final short STATUS_IPV4_SNAT_IPV6_OK
```
    We are behind a symmetric NAT which will make our 'from' address look differently when we talk to multiple people We can receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_DIFFERENT
```
public static final short STATUS_DIFFERENT
```
    We are behind a symmetric NAT which will make our 'from' address look differently when we talk to multiple people
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_SNAT_IPV6_UNKNOWN
```
public static final short STATUS_IPV4_SNAT_IPV6_UNKNOWN
```
    We are behind a symmetric NAT which will make our 'from' address look differently when we talk to multiple people We might be able to receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_FIREWALLED_IPV6_UNKNOWN
```
public static final short STATUS_IPV4_FIREWALLED_IPV6_UNKNOWN
```
    We have an IPv6 transport enabled and a public IPv6 address. We cannot receive unsolicited connections on IPv4. We might be able to receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_REJECT_UNSOLICITED
```
public static final short STATUS_REJECT_UNSOLICITED
```
    We are able to talk to peers that we initiate communication with, but cannot receive unsolicited connections, i.e. Firewalled, on all enabled transports.
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_UNKNOWN_IPV6_FIREWALLED
```
public static final short STATUS_IPV4_UNKNOWN_IPV6_FIREWALLED
```
    We have an IPv6 transport enabled and a public IPv6 address. We may be able to receive unsolicited connections on IPv4. We cannot receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_DISABLED_IPV6_UNKNOWN
```
public static final short STATUS_IPV4_DISABLED_IPV6_UNKNOWN
```
    We have an IPv6 transport enabled and a public IPv6 address. IPv4 is disabled. We might be able to receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_IPV4_DISABLED_IPV6_FIREWALLED
```
public static final short STATUS_IPV4_DISABLED_IPV6_FIREWALLED
```
    We have an IPv6 transport enabled and a public IPv6 address. IPv4 is disabled. We can receive unsolicited connections on IPv6.
    
    Since:
    
    0.9.20
    
    See Also:
    
    Constant Field Values
  - STATUS_DISCONNECTED
```
public static final short STATUS_DISCONNECTED
```
    We have no network interface at all enabled transports
    
    Since:
    
    0.9.4
    
    See Also:
    
    Constant Field Values
  - STATUS_HOSED
```
public static final short STATUS_HOSED
```
    Our detection system is broken (SSU bind port failed)
    
    See Also:
    
    Constant Field Values
  - STATUS_UNKNOWN
```
public static final short STATUS_UNKNOWN
```
    Our reachability is unknown on all
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - CommSystemFacade
```
public CommSystemFacade()
```
- Method Detail
  - processMessage
```
public abstract void processMessage(OutNetMessage msg)
```
  - renderStatusHTML
```
public void renderStatusHTML(Writer out,
                             String urlBase,
                             int sortFlags)
                      throws IOException
```
    Throws:
    
    IOException
  - renderStatusHTML
```
public void renderStatusHTML(Writer out)
                      throws IOException
```
    Specified by:
    
    renderStatusHTML in interface Service
    
    Throws:
    
    IOException
  - createAddresses
```
public List<RouterAddress> createAddresses()
```
    Create the list of RouterAddress structures based on the router's config
  - countActivePeers
```
public abstract int countActivePeers()
```
    How many peers are we currently connected to, that we have sent a message to or received a message from in the last five minutes.
  - countActiveSendPeers
```
public abstract int countActiveSendPeers()
```
    How many peers are we currently connected to, that we have sent a message to in the last minute. Unused for anything, to be removed.
  - haveInboundCapacity
```
public boolean haveInboundCapacity(int pct)
```
  - haveOutboundCapacity
```
public boolean haveOutboundCapacity(int pct)
```
  - haveHighOutboundCapacity
```
public boolean haveHighOutboundCapacity()
```
  - getMostRecentErrorMessages
```
public List<String> getMostRecentErrorMessages()
```
  - getMedianPeerClockSkew
```
public Long getMedianPeerClockSkew()
```
    Median clock skew of connected peers in seconds, or null if we cannot answer. CommSystemFacadeImpl overrides this.
  - getFramedAveragePeerClockSkew
```
public long getFramedAveragePeerClockSkew(int percentToInclude)
```
    Return framed average clock skew of connected peers in seconds, or null if we cannot answer. CommSystemFacadeImpl overrides this.
  - getReachabilityStatus
```
@Deprecated
public short getReachabilityStatus()
```
    Deprecated.
    use getStatus()
    
    Determine under what conditions we are remotely reachable. For internal use only. Not recommended for plugins or embedded applications, as the integer codes may change. Use getStatus() instead.
  - getStatus
```
public CommSystemFacade.Status getStatus()
```
    Determine under what conditions we are remotely reachable.
    
    Since:
    
    0.9.20
  - getLocalizedStatusString
```
public String getLocalizedStatusString()
```
    getStatus().toStatusString(), translated if available.
    
    Since:
    
    0.9.45
  - recheckReachability
```
@Deprecated
public void recheckReachability()
```
    Deprecated.
    unused
  - isBacklogged
```
public boolean isBacklogged(Hash peer)
```
  - wasUnreachable
```
public boolean wasUnreachable(Hash peer)
```
  - isEstablished
```
public abstract boolean isEstablished(Hash peer)
```
  - getIP
```
public byte[] getIP(Hash dest)
```
  - queueLookup
```
public void queueLookup(byte[] ip)
```
  - mayDisconnect
```
public void mayDisconnect(Hash peer)
```
    Tell the comm system that we may disconnect from this peer. This is advisory only.
    
    Since:
    
    0.9.24
  - forceDisconnect
```
public void forceDisconnect(Hash peer)
```
    Tell the comm system to disconnect from this peer.
    
    Since:
    
    0.9.38
  - getOurCountry
```
public String getOurCountry()
```
    Since:
    
    0.8.11
  - isInStrictCountry
```
public boolean isInStrictCountry()
```
    Since:
    
    0.8.13
  - isInStrictCountry
```
public boolean isInStrictCountry(Hash peer)
```
    Since:
    
    0.9.16
  - isInStrictCountry
```
public boolean isInStrictCountry(RouterInfo ri)
```
    Since:
    
    0.9.16
  - getCountry
```
public String getCountry(Hash peer)
```
  - getCountryName
```
public String getCountryName(String code)
```
  - renderPeerHTML
```
public String renderPeerHTML(Hash peer)
```
  - getTransports
```
public SortedMap<String,Transport> getTransports()
```
    Returns:
    
    SortedMap of style to Transport (a copy)
    
    Since:
    
    0.9.31
  - getEstablished
```
public abstract Set<Hash> getEstablished()
```
    Get all the peers we are connected to. This should be more efficient than repeated calls to isEstablished() if you have to check a lot.
    
    Returns:
    
    the hashes of all the routers we are connected to, non-null
    
    Since:
    
    0.9.34
  - isDummy
```
public boolean isDummy()
```
    Since:
    
    0.8.13
  - notifyReplaceAddress
```
public void notifyReplaceAddress(RouterAddress address)
```
    Tell other transports our address changed
  - notifyRemoveAddress
```
public void notifyRemoveAddress(RouterAddress address)
```
    Tell other transports our address changed
    
    Since:
    
    0.9.20
  - notifyRemoveAddress
```
public void notifyRemoveAddress(boolean ipv6)
```
    Tell other transports our address changed
    
    Since:
    
    0.9.20
  - registerTransport
```
public void registerTransport(Transport t)
```
    Pluggable transport
    
    Since:
    
    0.9.16
  - unregisterTransport
```
public void unregisterTransport(Transport t)
```
    Pluggable transport
    
    Since:
    
    0.9.16
  - getDHFactory
```
public DHSessionKeyBuilder.Factory getDHFactory()
```
    Hook for pluggable transport creation.
    
    Since:
    
    0.9.16
  - getXDHFactory
```
public X25519KeyFactory getXDHFactory()
```
    Factory for making X25519 key pairs.
    
    Since:
    
    0.9.46
  - initGeoIP
```
public void initGeoIP()
```
    Router must call after netdb is initialized
    
    Since:
    
    0.9.41

Class CommSystemFacade

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface net.i2p.router.Service

Field Detail

ROUTER_BUNDLE_NAME

STATUS_OK

STATUS_IPV4_OK_IPV6_UNKNOWN

STATUS_IPV4_OK_IPV6_FIREWALLED

STATUS_IPV4_UNKNOWN_IPV6_OK

STATUS_IPV4_FIREWALLED_IPV6_OK

STATUS_IPV4_DISABLED_IPV6_OK

STATUS_IPV4_SNAT_IPV6_OK

STATUS_DIFFERENT

STATUS_IPV4_SNAT_IPV6_UNKNOWN

STATUS_IPV4_FIREWALLED_IPV6_UNKNOWN

STATUS_REJECT_UNSOLICITED

STATUS_IPV4_UNKNOWN_IPV6_FIREWALLED

STATUS_IPV4_DISABLED_IPV6_UNKNOWN

STATUS_IPV4_DISABLED_IPV6_FIREWALLED

STATUS_DISCONNECTED

STATUS_HOSED

STATUS_UNKNOWN

Constructor Detail

CommSystemFacade

Method Detail

processMessage

renderStatusHTML

renderStatusHTML

createAddresses

countActivePeers

countActiveSendPeers

haveInboundCapacity

haveOutboundCapacity

haveHighOutboundCapacity

getMostRecentErrorMessages

getMedianPeerClockSkew

getFramedAveragePeerClockSkew

getReachabilityStatus

getStatus

getLocalizedStatusString

recheckReachability

isBacklogged

wasUnreachable

isEstablished

getIP

queueLookup

mayDisconnect

forceDisconnect

getOurCountry

isInStrictCountry

isInStrictCountry

isInStrictCountry

getCountry

getCountryName

renderPeerHTML

getTransports

getEstablished

isDummy

notifyReplaceAddress

notifyRemoveAddress

notifyRemoveAddress

registerTransport

unregisterTransport

getDHFactory

getXDHFactory

initGeoIP