/**
* @param currentUser
* @param currentTopic
*/
public TextConf(User currentUser, Topic currentTopic, TextConfObserver obs) {
this.currentUser = currentUser;
this.currentTopic = currentTopic;
this.observer = obs;
this.setLogging(Level.WARNING);
UserConfiguration.setUserName(this.currentUser.getUserName());
_namespaceStr = BASE_NAMESPACE + "/" + currentTopic.getTopicName();
_userToDigestHash = new HashMap<PublisherPublicKeyDigest, User>();
try {
_namespace = ContentName.fromURI(_namespaceStr);
} catch (Exception e) {
e.printStackTrace();
}
}
@BeforeClass
public static void setUpBeforeClass() throws Exception {
CCNTestHelper testHelper = new CCNTestHelper(GroupRecursiveKeyUpdateTestRepo.class);
directoryBase = testHelper.getTestNamespace("testInOrder");
userNamespace =
GroupAccessControlProfile.userNamespaceName(UserConfiguration.defaultNamespace());
groupNamespace =
GroupAccessControlProfile.groupNamespaceName(UserConfiguration.defaultNamespace());
userKeyStorePrefix = ContentName.fromNative(UserConfiguration.defaultNamespace(), "_keystore_");
// create user identities with TestUserData
td = new CreateUserData(userKeyStorePrefix, numberOfusers, true, "password".toCharArray());
td.publishUserKeysToRepository(userNamespace);
friendlyNames = td.friendlyNames().toArray(new String[0]);
// create ACM
handle = td.getHandleForUser(friendlyNames[1]);
acm = new GroupAccessControlManager(directoryBase, groupNamespace, userNamespace, handle);
acm.publishMyIdentity(
ContentName.fromNative(userNamespace, friendlyNames[1]),
handle.keyManager().getDefaultPublicKey());
}
/**
* This actual CCN loop to send/receive messages. Called by the UI class. This method blocks! If
* the UI is not multi-threaded, you should start a thread to hold listen().
*
* <p>When shutdown() is called, listen() will exit.
*
* @throws ConfigurationException
* @throws IOException
* @throws MalformedContentNameStringException
*/
public void listen()
throws ConfigurationException, IOException, MalformedContentNameStringException,
RuntimeException {
// Also publish your keys under the chat "channel name" namespace
if (_namespace.toString().startsWith("ccnx:/")) {
UserConfiguration.setDefaultNamespacePrefix(_namespace.toString().substring(5));
} else {
UserConfiguration.setDefaultNamespacePrefix(_namespace.toString());
}
CCNHandle tempReadHandle = CCNHandle.getHandle();
// Writing must be on a different handle, to enable us to read back text
// we have
// written when nobody else is reading.
CCNHandle tempWriteHandle = CCNHandle.open();
_readString = new CCNStringObject(_namespace, (String) null, SaveType.RAW, tempReadHandle);
_readString.updateInBackground(true);
String introduction = UserConfiguration.userName() + " has entered " + _namespace;
_writeString = new CCNStringObject(_namespace, introduction, SaveType.RAW, tempWriteHandle);
_writeString.save();
// Publish the user's friendly name as a speaker if needed
// AND if this topic doesn't already have a speaker!
if (this.currentUser.isSpeaker()) {
if (this.userList.getSpeaker() == null
|| this.userList.getSpeaker().equals(this.currentUser)) {
String friendlyNameNamespaceStr = _namespaceStr + TextConf.SPEAKER_COMPONENT;
_spkrNamespace =
KeyProfile.keyName(
ContentName.fromURI(friendlyNameNamespaceStr), _writeString.getContentPublisher());
Log.info("**** Speaker Namespace is " + _spkrNamespace);
// read the string here.....
_readNameString =
new CCNStringObject(_spkrNamespace, (String) null, SaveType.RAW, tempReadHandle);
_readNameString.updateInBackground(true);
String publishedNameStr = UserConfiguration.userName();
Log.info("*****I am adding my own speaker name as " + publishedNameStr);
_writeNameString =
new CCNStringObject(_spkrNamespace, publishedNameStr, SaveType.RAW, tempWriteHandle);
_writeNameString.save();
} else {
throw new RuntimeException(
"The conference topic "
+ this.currentTopic.getTopicName()
+ " already has a Speaker ("
+ this.userList.getSpeaker().getUserName()
+ ")!!!");
}
} else {
// If the current user isn't a speaker, then they can't join a conference
// that doesn't have one (i.e. they can't create a conference)
if (this.userList.speaker == null) {
throw new RuntimeException(
"The conference topic "
+ this.currentTopic.getTopicName()
+ " doesn't have a Speaker yet so it isn't accepting non-Speakers!!!");
}
}
// Publish the user's friendly name under a new ContentName
String friendlyNameNamespaceStr = _namespaceStr + TextConf.MEMBER_COMPONENT;
_userNamespace =
KeyProfile.keyName(
ContentName.fromURI(friendlyNameNamespaceStr), _writeString.getContentPublisher());
Log.info("**** Friendly Namespace is " + _userNamespace);
// read the string here.....
_readNameString =
new CCNStringObject(_userNamespace, (String) null, SaveType.RAW, tempReadHandle);
_readNameString.updateInBackground(true);
String publishedNameStr = UserConfiguration.userName();
Log.info("*****I am adding my own friendly name as " + publishedNameStr);
_writeNameString =
new CCNStringObject(_userNamespace, publishedNameStr, SaveType.RAW, tempWriteHandle);
_writeNameString.save();
try {
addNameToHash(_writeNameString.getContentPublisher(), _writeNameString.string());
} catch (IOException e) {
System.err.println("Unable to read from " + _writeNameString + "for writing to hashMap");
e.printStackTrace();
}
// Need to do synchronization for updates that come in while we're
// processing last one.
while (!_finished) {
try {
synchronized (_readString) {
_readString.wait(CYCLE_TIME);
}
} catch (InterruptedException e) {
}
if (_readString.isSaved()) {
Timestamp thisUpdate = _readString.getVersion();
if ((null == _lastUpdate) || thisUpdate.after(_lastUpdate)) {
Log.info(
"Got an update from "
+ _readString.getBaseName().toURIString()
+ ": "
+ _readString.getVersion()
+ "..."
+ _readString.string());
_lastUpdate = thisUpdate;
// lookup friendly name to display for this user.....
User userFriendlyName =
getFriendlyName(_readString.getContentPublisher(), tempReadHandle, tempWriteHandle);
if (!userFriendlyName.equals(this.currentUser)) {
messageReceived(userFriendlyName, thisUpdate, _readString.string());
}
}
}
}
}
