@Test
public void testLinkQueue() throws Exception {
Log.info(Log.FAC_TEST, "Started testLinkQueue");
String prefix = String.format("/repotest/test_%016X", rnd.nextLong());
String queuenamestring = prefix + "/queue";
String objnamestring = prefix + "/obj";
ContentName queuename = ContentName.fromNative(queuenamestring);
ContentName objname = ContentName.fromNative(objnamestring);
int objsize = 1024 * 600;
CCNHandle recvhandle = CCNHandle.getHandle();
CCNHandle sendhandle = CCNHandle.open(recvhandle.keyManager());
char[] buf = new char[objsize];
Arrays.fill(buf, 'x');
String objfill = String.valueOf(buf);
VersioningInterest vi = new VersioningInterest(recvhandle);
TestListener listener = new TestListener();
vi.expressInterest(queuename, listener);
Thread.sleep(1000);
CCNStringObject so =
new CCNStringObject(objname, objfill, SaveType.LOCALREPOSITORY, sendhandle);
so.save();
so.close();
Link link = new Link(so.getVersionedName());
LinkObject lo = new LinkObject(queuename, link, SaveType.LOCALREPOSITORY, sendhandle);
lo.save();
lo.close();
sendhandle.close();
// now see if we got it in the TestListener
Assert.assertTrue(listener.cl.waitForValue(1, 60000));
ReceivedData rd = listener.received.get(0);
ContentObject co = rd.object;
CCNStringObject so2 = new CCNStringObject(co.name(), recvhandle);
Assert.assertEquals(so, so2);
Log.info(Log.FAC_TEST, "Completed testLinkQueue");
}
/**
* 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());
}
}
}
}
}
/** @param args */
public static void main(String[] args) {
String extraUsage = "";
Log.setDefaultLevel(Level.WARNING);
try {
int offset = 0;
SaveType type = SaveType.REPOSITORY;
for (int i = 0; i < args.length; i++) {
if (i == 0 && args[0].startsWith("[")) {
extraUsage = args[0];
offset++;
continue;
} else if (args[i].equals("-h")) {
usage(extraUsage);
System.exit(0);
} else if (!args[i].startsWith("-")) break;
if (args[i].equals("-q")) {
Log.setDefaultLevel(Level.WARNING);
offset++;
}
if (args[i].equals("-r")) {
type = SaveType.RAW;
offset++;
}
}
if (args.length - offset < 2) {
usage(extraUsage);
System.exit(1);
}
boolean hasAs = false;
if (args.length - offset > 2) {
if (args[offset + 2].equals("-as")) hasAs = true;
else {
usage(extraUsage);
System.exit(1);
}
}
ContentName linkName = ContentName.fromURI(args[offset++]);
ContentName targetName = ContentName.fromURI(args[offset++]);
Tuple<Integer, CCNHandle> tuple = null;
if (hasAs) {
tuple = CreateUserData.handleAs(args, offset);
if (null == tuple) {
usage(extraUsage);
System.exit(1);
}
}
// Can also use command line system properties and environment variables to
// point this handle to the correct user.
CCNHandle handle =
((null == tuple) || (null == tuple.second())) ? CCNHandle.getHandle() : tuple.second();
LinkObject theLink = new LinkObject(linkName, new Link(targetName), type, handle);
theLink.save();
theLink.close();
System.out.println("Created link: " + theLink);
handle.close();
} catch (Exception e) {
handleException("Error: cannot initialize device. ", e);
System.exit(-3);
}
}
