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java.lang.Objectnet.i2p.client.naming.NamingService
net.i2p.client.naming.DummyNamingService
net.i2p.client.naming.BlockfileNamingService
public class BlockfileNamingService
A naming service using the net.metanotion BlockFile database. This database contains the following skiplists:
"%%__INFO__%%" is the master database skiplist, containing one entry: "info": a Properties, serialized with DataHelper functions: "version": "2" "created": Java long time (ms) "upgraded": Java long time (ms) (as of database version 2) "lists": Comma-separated list of host databases, to be searched in-order for lookups "%%__REVERSE__%%" is the reverse lookup skiplist (as of database version 2): The skiplist keys are Integers, the first 4 bytes of the hash of the dest. The skiplist values are Properties. There may be multiple entries in the properties, each one is a reverse mapping, as there may be more than one hostname for a given destination, or there could be collisions with the same first 4 bytes of the hash. Each property key is a hostname. Each property value is the empty string. For each host database, there is a skiplist containing the hosts for that database. The keys/values in these skiplists are as follows: key: a UTF-8 String value: a DestEntry, which is a Properties (serialized with DataHelper) followed by a Destination (serialized as usual). The DestEntry Properties typically contains: "a": The time added (Java long time in ms) "s": The original source of the entry (typically a file name or subscription URL) others TBDAll host names are converted to lower case.
Field Summary |
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Fields inherited from class net.i2p.client.naming.DummyNamingService |
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BASE32_HASH_LENGTH, CACHE_MAX_SIZE, DEST_SIZE, PROP_B32 |
Fields inherited from class net.i2p.client.naming.NamingService |
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_context, _listeners, _log, _updaters, PROP_IMPL |
Constructor Summary | |
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BlockfileNamingService(I2PAppContext context)
Opens the database at hostsdb.blockfile or creates a new one and imports entries from hosts.txt, userhosts.txt, and privatehosts.txt. |
Method Summary | |
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Map<String,Destination> |
getEntries(Properties options)
Warning - This will bring the whole database into memory if options is null, empty, or unsupported, use with caution. |
Destination |
lookup(String hostname,
Properties lookupOptions,
Properties storedOptions)
Same as lookup(hostname) but with in and out options Note that whether this (and lookup(hostname)) resolve B32 addresses is NamingService-specific. |
boolean |
put(String hostname,
Destination d,
Properties options)
|
boolean |
putIfAbsent(String hostname,
Destination d,
Properties options)
Fails if entry previously exists |
boolean |
remove(String hostname,
Properties options)
|
String |
reverseLookup(Destination d,
Properties options)
Same as reverseLookup(dest) but with options |
String |
reverseLookup(Hash h)
Reverse lookup a hash |
void |
shutdown()
Parent will call when removed. |
int |
size(Properties options)
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Methods inherited from class net.i2p.client.naming.DummyNamingService |
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clearCache, getCache, putCache, removeCache |
Methods inherited from class net.i2p.client.naming.NamingService |
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addNamingService, addNamingService, createInstance, getBase64Entries, getConfiguration, getEntries, getName, getNames, getNames, getNamingServices, getParent, lookup, lookup, lookupBase32, lookupBase64, put, putAll, putIfAbsent, registerListener, registerUpdater, remove, removeNamingService, requestUpdate, reverseLookup, setConfiguration, size, start, toString, unregisterListener, unregisterUpdater, update |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public BlockfileNamingService(I2PAppContext context)
RuntimeException
- on fatal errorMethod Detail |
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public Destination lookup(String hostname, Properties lookupOptions, Properties storedOptions)
NamingService
lookup
in class DummyNamingService
hostname
- mixed case as it could be a keylookupOptions
- input parameter, NamingService-specific, can be nullstoredOptions
- output parameter, NamingService-specific, any stored properties will be added if non-null
public boolean put(String hostname, Destination d, Properties options)
put
in class NamingService
options
- If non-null and contains the key "list", add to that list
(default "hosts.txt")
Use the key "s" for the source
public boolean putIfAbsent(String hostname, Destination d, Properties options)
NamingService
putIfAbsent
in class NamingService
options
- If non-null and contains the key "list", add to that list
(default "hosts.txt")
Use the key "s" for the source.
Key "a" will be added with the current time, unless
"a" is present in options.
public boolean remove(String hostname, Properties options)
remove
in class NamingService
options
- If non-null and contains the key "list", remove
from that list (default "hosts.txt", NOT all lists)
public Map<String,Destination> getEntries(Properties options)
NamingService
getEntries
in class NamingService
options
- If non-null and contains the key "list", get
from that list (default "hosts.txt", NOT all lists)
Key "skip": skip that many entries
Key "limit": max number to return
Key "search": return only those matching substring
Key "startsWith": return only those starting with
("[0-9]" allowed)
Key "beginWith": start here in the iteration
Don't use both startsWith and beginWith.
Search, startsWith, and beginWith values must be lower case.
public String reverseLookup(Destination d, Properties options)
NamingService
reverseLookup
in class NamingService
options
- ignoredd
- non-null
public String reverseLookup(Hash h)
NamingService
reverseLookup
in class NamingService
h
- non-null
null
if none is known. It is safe for subclasses to always return
null
if no reverse lookup is possible.public int size(Properties options)
size
in class NamingService
options
- If non-null and contains the key "list", return the
size of that list (default "hosts.txt", NOT all lists)
public void shutdown()
NamingService
shutdown
in class NamingService
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