/* A hierarchical library of components specified in MoML.
Copyright (c) 2002-2008 The Regents of the University of California.
All rights reserved.
Permission is hereby granted, without written agreement and without
license or royalty fees, to use, copy, modify, and distribute this
software and its documentation for any purpose, provided that the above
copyright notice and the following two paragraphs appear in all copies
of this software.
IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
ENHANCEMENTS, OR MODIFICATIONS.
PT_COPYRIGHT_VERSION_2
COPYRIGHTENDKEY
*/
package ptolemy.moml.jxta;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.io.StringWriter;
import java.lang.reflect.Constructor;
import java.util.Properties;
import net.jxta.credential.AuthenticationCredential;
import net.jxta.discovery.DiscoveryEvent;
import net.jxta.discovery.DiscoveryListener;
import net.jxta.discovery.DiscoveryService;
import net.jxta.document.AdvertisementFactory;
import net.jxta.document.MimeMediaType;
import net.jxta.document.StructuredDocument;
import net.jxta.endpoint.Message;
import net.jxta.endpoint.MessageElement;
import net.jxta.endpoint.MessageElementEnumeration;
import net.jxta.exception.DiscardQueryException;
import net.jxta.exception.NoResponseException;
import net.jxta.exception.PeerGroupException;
import net.jxta.exception.ResendQueryException;
import net.jxta.impl.protocol.ResolverQuery;
import net.jxta.impl.protocol.ResolverResponse;
import net.jxta.membership.Authenticator;
import net.jxta.membership.MembershipService;
import net.jxta.peergroup.PeerGroup;
import net.jxta.peergroup.PeerGroupFactory;
import net.jxta.pipe.OutputPipe;
import net.jxta.pipe.PipeMsgEvent;
import net.jxta.pipe.PipeMsgListener;
import net.jxta.pipe.PipeService;
import net.jxta.protocol.DiscoveryResponseMsg;
import net.jxta.protocol.PeerAdvertisement;
import net.jxta.protocol.PeerGroupAdvertisement;
import net.jxta.protocol.PipeAdvertisement;
import net.jxta.protocol.ResolverQueryMsg;
import net.jxta.protocol.ResolverResponseMsg;
import net.jxta.resolver.QueryHandler;
import net.jxta.resolver.ResolverService;
import ptolemy.kernel.ComponentEntity;
import ptolemy.kernel.CompositeEntity;
import ptolemy.kernel.util.ChangeListener;
import ptolemy.kernel.util.ChangeRequest;
import ptolemy.kernel.util.IllegalActionException;
import ptolemy.kernel.util.NameDuplicationException;
import ptolemy.kernel.util.NamedObj;
import ptolemy.moml.EntityLibrary;
import ptolemy.moml.MoMLChangeRequest;
import ptolemy.moml.MoMLParser;
import ptolemy.moml.filter.BackwardCompatibility;
import ptolemy.util.StringUtilities;
//////////////////////////////////////////////////////////////////////////
//// JXTALibrary
/**
This class provides a hierarchical library of components discovered from
remote peers.
<p>It starts as a JXTA peer. After started, it notisfies other peers
via remote publish its advertisement, and it discovers other peers
through getRemoteAdvertisement().
<p>The DiscoveryListener listens to the discovered events. One can
implements the discoveryEvent method to do what he/she want. In this
class, it sends out a query message to peers that have been
discovered.
<p>The QueryHandler deals with query message and response message sent
by the resolverService. One can implements the processQuery method to
deal with query message, and implements the processResponse method to
deal with response message. In this class, A query message asks remote
peer for actors, and when a peer gets such a query message, it will
send a response message to answer what it has.
<p>The pipeService can be used to exchange messages between peers. We
can wrap a class file into a message to send it to a peer which wants
this class. (FIXME: secure problems need to be considered at some
point!) In this class, the processResponse method will creat an
inputPipe for receiving actor classes, and send an inputPipe
advertisement to the peer that has the actor. The current JXTA java
binding implementation dosen't support publish an advertisement to a
specific peer, however we probably wouldn't like to publish an
inputPipe to the whole group. So in this class, we use the
resolverService to wrap the pipeAdvertisement in a query message to
send it to the speicific peer.
<p>The pipeMsgListener listens to input pipe messages. One can
implements the pipeMsgEvent method to deal with the received
message. In this class, we use the jave classLoader to define a class
from the bytes received, and create a new instance of this class. Then
a moml change request is issued.
<p>A file: discoverdActors.xml is used to record discoved
classes. These classes will be loaded when we start vergil next
time. (FIXME: we need to check the version of the class file we cached
to decide whether we need to get the file again when is discovered!)
<p>NOTE: this class is still very preliminary......
@author Yang Zhao, Xiaojun Liu
@version $Id$
@since Ptolemy II 2.1
@Pt.ProposedRating Red (ellen_zh)
@Pt.AcceptedRating Red (cxheecs.berkeley.edu)
*/
public class JXTALibrary extends EntityLibrary implements ChangeListener,
QueryHandler, DiscoveryListener, PipeMsgListener {
/** Construct a library with the given container and name.
* @param container The container.
* @param name The name of this library.
* @exception IllegalActionException If the entity cannot be contained
* by the proposed container.
* @exception NameDuplicationException If the container already has an
* actor with this name.
*/
public JXTALibrary(CompositeEntity container, String name)
throws NameDuplicationException, IllegalActionException {
super(container, name);
System.out.println("enter property configuration");
//load the property file
_loadProperty();
// instantiate the default net peer group
_startJxta();
// create the peer group adv for actor exchange
_createPeerGroup();
// join the peer group for actor exchange
_joinPeerGroup();
try {
MoMLParser parser = new MoMLParser();
MoMLParser.setMoMLFilters(BackwardCompatibility.allFilters());
File file = new File(_configDir + "/" + _DISCOVERED_ACTORS);
if (file.exists()) {
_cachedLib = (CompositeEntity) parser.parse(null, file.toURI()
.toURL());
_cachedLib.addChangeListener(this);
System.out.println("create a compositeActor entity "
+ "from discoveredActors.xml");
} else {
_cachedLib = null;
System.out.println("Warning: can't find discoveredActors.xml, "
+ "please create this file first.");
}
} catch (java.net.MalformedURLException e) {
} catch (java.lang.Exception e) {
}
//get the discovery service, publish peer advertisement, and
//get other's advertisement. Note: the current jxta
//implementation doesn't support remote publish of peer Adv,
//but we can publish a group adv or other adv, and the peer
//Adv is automatically attached.
_discoveryService = _group.getDiscoveryService();
_discoveryService.addDiscoveryListener(this);
_discoveryService.remotePublish(_groupAdv, DiscoveryService.GROUP);
_discoveryService.getRemoteAdvertisements(null, DiscoveryService.PEER,
null, null, 5);
System.out.println("login to Ptolemy actor exchange group, "
+ "and wait for remote response......\n");
_resolverService = _group.getResolverService();
// register this as a query handler
_resolverService.registerHandler(_ACTOR_QUERY_HANDLER_NAME, this);
_pipeSvc = _group.getPipeService();
_loadPipeAdvertisement();
_createPipeAdvMessage();
// construct the actor query message
_createActorQuery();
// construct the actor query response message
_createActorResponse();
}
///////////////////////////////////////////////////////////////////
//// private methods ////
public void changeExecuted(ChangeRequest change) {
}
public void changeFailed(ChangeRequest change, Exception exception) {
System.out.println(change.toString());
System.out.println(exception.getMessage());
exception.printStackTrace();
throw new RuntimeException(exception.toString());
}
public void discoveryEvent(DiscoveryEvent event) {
System.out.println("Process discovery event...");
DiscoveryResponseMsg response = event.getResponse();
// Get the responding peer's advertisement as a string
String responderAdvString = response.getPeerAdv();
//System.out.println("peer Advertisement: " + responderAdvString);
try {
// create a peer advertisement
InputStream is = new ByteArrayInputStream(responderAdvString
.getBytes());
PeerAdvertisement responderAdv = (PeerAdvertisement) AdvertisementFactory
.newAdvertisement(_XML_MIME_TYPE, is);
System.out.println(" [ Got a Discovery Response ["
+ response.getResponseCount() + " elements] from peer: "
+ responderAdv.getName() + " ]");
String peerID = (responderAdv.getPeerID()).toString();
_resolverService.sendQuery(peerID, _actorQueryMessage);
} catch (java.io.IOException e) {
// bogus peer, skip this message alltogether.
System.out.println("Warning: cannot parse remote "
+ "peer's advertisement.\n" + e.getMessage());
return;
}
}
public PipeAdvertisement getPipeAdvertisement(String str) {
PipeAdvertisement pipeAdv = null;
try {
pipeAdv = (PipeAdvertisement) AdvertisementFactory
.newAdvertisement(_XML_MIME_TYPE, new ByteArrayInputStream(
str.getBytes()));
} catch (java.io.IOException ex) {
System.out.println("failed to constructe Pipe advertisement "
+ "from a string " + ex.getMessage());
}
return pipeAdv;
}
public synchronized void pipeMsgEvent(PipeMsgEvent event) {
// Extract the message.
Message message = event.getMessage();
MessageElementEnumeration msgEnum = message.getElements();
MessageElement elm = null;
JXTAClassLoader classLoader = new JXTAClassLoader();
while (msgEnum.hasMoreElements()) {
elm = (MessageElement) msgEnum.nextElement();
String tag = elm.getName();
if (tag.equals(_TAG)) {
System.out.println("get an actor class from remote peer ");
InputStream inputStream = null;
try {
inputStream = elm.getStream();
int length = elm.getLength();
byte[] buffer = new byte[length];
int bytesRead;
if ((bytesRead = inputStream.read(buffer)) != length) {
throw new IOException("While reading " + elm
+ ", read only " + bytesRead
+ " bytes, expected to read " + length
+ " bytes.");
}
Class cls = classLoader.myDefineClass(null, buffer, 0,
length);
try {
_saveClass(cls, buffer);
} catch (IOException ex) {
ex.printStackTrace();
}
String clsName = "<Unknown>";
if (cls != null) {
clsName = cls.getName();
System.out.println("created class object " + clsName);
}
classLoader.myResolveClass(cls);
Object[] arguments = new Object[2];
int l = clsName.lastIndexOf(".");
System.out.println("the name of the new class is : "
+ clsName.substring(l + 1));
arguments[0] = this;
arguments[1] = "p2p_" + clsName.substring(l + 1);
try {
NamedObj newEntity = _createInstance(cls, arguments);
System.out.println("create an instance of " + clsName
+ ".\n");
((ComponentEntity) newEntity).setContainer(null);
String chg = newEntity.exportMoML();
System.out.println("the moml description of the "
+ "new object is: \n" + chg + "\n");
ChangeRequest request = new MoMLChangeRequest(this, // originator
this, // context
chg, // MoML code
null); // base
requestChange(request);
ChangeRequest request2 = new MoMLChangeRequest(this, // originator
_cachedLib, // context
chg, // MoML code
null); // base
_cachedLib.requestChange(request2);
System.out.println("discoveredActors.xml has been "
+ "changed.\n");
StringWriter stringWriter = new StringWriter();
_cachedLib.exportMoML(stringWriter);
PrintStream out = null;
try {
out = new PrintStream(new FileOutputStream(_Dir
+ "/" + _DISCOVERED_ACTORS));
out.println(stringWriter);
out.flush();
} finally {
if (out != null) {
try {
out.close();
} catch (Exception ex) {
System.out.println("Failed to close "
+ _Dir + "/" + _DISCOVERED_ACTORS);
}
}
}
} catch (Exception e) {
}
} catch (java.lang.NullPointerException e) {
System.out.println("Warning: cannot creat the file.\n"
+ e.getMessage());
} catch (java.io.IOException e) {
System.out.println("Warning: cannot creat/open the file.\n"
+ e.getMessage());
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException ex) {
System.out.println("Failed to close " + elm);
ex.printStackTrace();
}
}
}
}
}
}
//public void populate() {
// create list of cached actor discoveres
// for each actor, create a change request with
// "this" as context, queue and execute request
// then GUI should reflect change.
//}
/**
* @see net.jxta.resolver.QueryHandler#processQuery(ResolverQueryMsg)
*/
public ResolverResponseMsg processQuery(ResolverQueryMsg query)
throws NoResponseException, ResendQueryException,
DiscardQueryException, IOException {
String qry = query.getQuery();
if (qry.startsWith("<ActorQuery>")) {
if (_actorQueryResponse == null) {
throw new DiscardQueryException();
}
System.out.println("Send query response...");
_actorQueryResponse.setQueryId(query.getQueryId());
return _actorQueryResponse;
} else if (qry.startsWith("<PtolemyInputPipe>")) {
int len = qry.length();
String pipeStr = qry.substring(18, len - 19);
//System.out.println("the pipe information: " + pipeStr + "\n");
PipeAdvertisement newPipeAdv = getPipeAdvertisement(pipeStr);
for (int i = 0; i < 3; i++) {
System.out.println("Trying to bind to pipe...");
try {
_outputPipe = _pipeSvc.createOutputPipe(newPipeAdv, 30000);
break;
} catch (java.io.IOException e) {
// go try again;
}
}
if (_outputPipe == null) {
System.out.println("Error resolving pipe endpoint");
StringUtilities.exit(1);
}
_sendMsg();
return null;
} else {
return null;
}
}
public void processResponse(ResolverResponseMsg response) {
String rp = response.getResponse();
System.out.println("Got response from remote peers. \n");
//FIXME:check if we want the actor.
try {
if (rp.startsWith("<peerID>")) {
int index = rp.lastIndexOf("</peerID>");
String peerID = rp.substring(8, index);
System.out.println("peerID is :" + peerID + " .\n");
_resolverService.sendQuery(peerID, _pipeAdvMessage);
}
_pipeSvc.createInputPipe(_ptPipeAdv, this);
System.out.println("create a input pipe for message.");
} catch (java.io.IOException e) {
// bogus peer, skip this message alltogether.
System.out.println("Warning: cannot parse remote peer's "
+ "advertisement.\n" + e.getMessage());
return;
}
}
///////////////////////////////////////////////////////////////////
//// private methods ////
private void _createActorQuery() {
StringBuffer queryTextBuffer = new StringBuffer();
queryTextBuffer = queryTextBuffer.append("<ActorQuery>\n");
queryTextBuffer = queryTextBuffer.append("What actors do you have?");
queryTextBuffer = queryTextBuffer.append("\n</ActorQuery>\n");
_actorQueryMessage = new ResolverQuery(_ACTOR_QUERY_HANDLER_NAME, null,
null, queryTextBuffer.toString(), 0);
_actorQueryMessage.setSrc(_group.getPeerID().toString());
}
private void _createActorResponse() {
String actorListFileName = _properties.getProperty("actor.list");
if (actorListFileName != null) {
StringBuffer actorListText = new StringBuffer();
BufferedReader fileReader = null;
try {
fileReader = new BufferedReader(new FileReader(
actorListFileName));
String newline = System.getProperty("line.separator");
String peerID = (_group.getPeerID()).toString();
actorListText = actorListText.append("<peerID>" + peerID
+ "</peerID>");
actorListText = actorListText.append(newline);
while (true) {
String line = fileReader.readLine();
if (line == null) {
break;
}
actorListText = actorListText.append(line);
actorListText = actorListText.append(newline);
}
_actorQueryResponse = new ResolverResponse(
_ACTOR_QUERY_HANDLER_NAME, null, 0, actorListText
.toString());
} catch (IOException ex) {
System.out.println("Warning: error reading actor list file.\n"
+ ex.getMessage());
} finally {
if (fileReader != null) {
try {
fileReader.close();
} catch (Exception ex2) {
// Ignored, we are trying to close.
}
}
}
}
}
private NamedObj _createInstance(Class newClass, Object[] arguments)
throws Exception {
Constructor[] constructors = newClass.getConstructors();
System.out.println("get constructors.");
for (int i = 0; i < constructors.length; i++) {
Constructor constructor = constructors[i];
Class[] parameterTypes = constructor.getParameterTypes();
if (parameterTypes.length != arguments.length) {
continue;
}
boolean match = true;
for (int j = 0; j < parameterTypes.length; j++) {
if (!(parameterTypes[j].isInstance(arguments[j]))) {
match = false;
break;
}
}
if (match) {
System.out.println("find a matched constructor.");
NamedObj obj = (NamedObj) constructor.newInstance(arguments);
System.out.println("construct a new actor instance.");
return obj;
}
}
System.out.println("can't construct a new actor instance.");
throw new Exception("Cannot find a suitable constructor for"
+ newClass.getName());
}
private boolean _createPeerGroup() {
String groupAdvFileName = _properties.getProperty("GroupAdvFileName");
if (groupAdvFileName == null) {
System.out.println("Error: property undefined - "
+ "GroupAdvFileName.\n");
return false;
}
_groupAdv = null;
try {
_groupAdv = (PeerGroupAdvertisement) AdvertisementFactory
.newAdvertisement(_XML_MIME_TYPE, new FileInputStream(
_configDir + "/" + groupAdvFileName));
} catch (FileNotFoundException ex) {
System.out.println("Error: cannot find group adv file.\n"
+ ex.getMessage());
return false;
} catch (IOException ex) {
System.out.println("Error: reading group adv file.\n"
+ ex.getMessage());
return false;
}
//System.out.println("peer groupAdv: " + groupAdvFileName);
//System.out.println("success before instantiate peer group");
// instantiate the peer group for actor exchange
try {
_group = _netPeerGroup.newGroup(_groupAdv);
} catch (PeerGroupException ex) {
System.out.println("Error: cannot instantiate peer group.\n"
+ ex.getMessage());
return false;
}
return true;
}
private void _createPipeAdvMessage() {
String pipeAdvFile = _properties.getProperty("ptPipe");
if (pipeAdvFile == null) {
System.out.println("Error: property undefined - PipeAdvFile.\n");
return;
}
StringBuffer queryTextBuffer = new StringBuffer();
BufferedReader fileReader = null;
try {
fileReader = new BufferedReader(new FileReader(_configDir + "/"
+ pipeAdvFile));
String newline = System.getProperty("line.separator");
queryTextBuffer = queryTextBuffer.append("<PtolemyInputPipe>\n");
//String peerID = (_group.getPeerID()).toString();
//actorListText =
// actorListText.append("<peerID>" + peerID + "</peerID>");
//actorListText = actorListText.append(newline);
while (true) {
String line = fileReader.readLine();
if (line == null) {
break;
}
queryTextBuffer = queryTextBuffer.append(line);
queryTextBuffer = queryTextBuffer.append(newline);
}
queryTextBuffer = queryTextBuffer.append("</PtolemyInputPipe>\n");
} catch (IOException ex) {
System.out.println("Warning: error reading pipeAdv file.\n"
+ ex.getMessage());
} finally {
if (fileReader != null) {
try {
fileReader.close();
} catch (Exception ex) {
System.out.println("Failed to close " + _configDir + "/"
+ pipeAdvFile);
}
}
}
_pipeAdvMessage = new ResolverQuery(_ACTOR_QUERY_HANDLER_NAME, null,
null, queryTextBuffer.toString(), 0);
//System.out.println("the pipeAdv string is : "
// + queryTextBuffer.toString());
_pipeAdvMessage.setSrc(_group.getPeerID().toString());
}
private boolean _joinPeerGroup() {
StructuredDocument identityInfo = null;
try {
AuthenticationCredential authCred = new AuthenticationCredential(
_group, null, identityInfo);
MembershipService membershipService = _group.getMembershipService();
_authenticator = membershipService.apply(authCred);
if (_authenticator.isReadyForJoin()) {
/*_credential = */membershipService.join(_authenticator);
System.out.println("Info: join group successful.");
//_credential.getDocument(_XML_MIME_TYPE)
// .sendToStream(System.out);
} else {
System.out.println("Error: unable to join group.");
return false;
}
} catch (Exception ex) {
System.out.println("Error: failure in authentication.\n"
+ ex.getMessage());
return false;
}
return true;
}
private boolean _loadPipeAdvertisement() {
String pipeAdvFile = _properties.getProperty("ptPipe");
if (pipeAdvFile == null) {
System.out.println("Error: property undefined - PipeAdvFile.\n");
return false;
}
String fileName = _configDir + "/" + pipeAdvFile;
FileInputStream is = null;
try {
is = new FileInputStream(fileName);
_ptPipeAdv = (PipeAdvertisement) AdvertisementFactory
.newAdvertisement(new MimeMediaType("text/xml"), is);
} catch (java.io.IOException ex) {
System.out.println("failed to read/parse " + "pipe advertisement"
+ ex.getMessage());
} finally {
if (is != null) {
try {
is.close();
} catch (IOException ex2) {
System.out.println("failed to close \"" + fileName + "\": "
+ ex2.getMessage());
}
}
}
return true;
}
private void _loadProperty() {
_configDir = System.getProperty(_CONFIG_DIR);
if (_configDir == null) {
_configDir = System.getProperty("user.dir");
System.setProperty(_CONFIG_DIR, _configDir);
}
System.out.println("### the directory is : " + _configDir + "\n");
_properties = new Properties(System.getProperties());
InputStream configProperties = null;
try {
configProperties = new FileInputStream(_configDir + "/"
+ _CONFIG_FILE);
_properties.load(configProperties);
} catch (FileNotFoundException ex) {
System.out.println("Warning: cannot find configuration "
+ "properties file.\n" + ex.getMessage());
} catch (IOException ex) {
System.out.println("Warning: error reading configuration file.\n"
+ ex.getMessage());
} finally {
if (configProperties != null) {
try {
configProperties.close();
} catch (Exception ex) {
System.out.println("Failed to close " + _configDir + "/"
+ _CONFIG_FILE);
}
}
}
}
private void _sendMsg() {
String ActorName = _properties.getProperty("sharedActor");
InputStream actStream = null;
if (ActorName == null) {
System.out.println("Error: property undefined - actor.\n");
}
String ActorFile = _properties.getProperty("sharedClassFile");
if (ActorFile == null) {
System.out.println("Error: property undefined - file.\n");
}
try {
try {
actStream = new FileInputStream(_configDir + "/" + ActorFile);
} catch (java.io.IOException ex) {
System.out.println("failed to read/parse pipe " + "advertisement"
+ ex.getMessage());
}
// create the pipe message
Message msg = _pipeSvc.createMessage();
//msg.setString(_TAG, data);
//byte[] buff = new byte[MAXBUFF];
//int size = actStream.read(buff);
//actStream.close();
//if (size < MAXBUFF) {
try {
MessageElement msgelm = msg
.newMessageElement(_TAG, null, actStream);
msg.addElement(msgelm);
} catch (java.io.IOException e) {
// go try again;
}
try {
// send the message to the service pipe
_outputPipe.send(msg);
System.out.println(ActorName + "file sent out to remote peer.");
} catch (java.io.IOException ex) {
System.out.println("failed to send message to remote peer "
+ ex.getMessage());
}
} finally {
if (actStream != null) {
try {
actStream.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
}
private boolean _startJxta() {
try {
_netPeerGroup = PeerGroupFactory.newNetPeerGroup();
} catch (PeerGroupException ex) {
System.out.println("Error: cannot locate net peer group.\n"
+ ex.getMessage());
return false;
}
return true;
}
private void _saveClass(Class cls, byte[] buf) throws IOException {
String clsName = cls.getName();
char fileSeparator = System.getProperty("file.separator").charAt(0);
String pathName = clsName.replace('.', fileSeparator);
String pathDir = pathName.substring(0, pathName
.lastIndexOf(fileSeparator));
//String rootPath = System.getProperty("ptolemy.ptII.dir", ".");
String rootPath = System.getProperty("user.dir");
File destDir = new File(rootPath + fileSeparator + pathDir);
if (!destDir.exists()) {
if (!destDir.mkdirs()) {
throw new IOException("Failed to create directory \"" + destDir
+ "\"");
}
}
File clsFile = new File(destDir, pathName.substring(pathName
.lastIndexOf(fileSeparator) + 1, pathName.length())
+ ".class");
FileOutputStream output = null;
try {
output = new FileOutputStream(clsFile);
output.write(buf);
} finally {
if (output != null) {
output.close();
}
}
}
///////////////////////////////////////////////////////////////////
//// private variables ////
private String _ACTOR_QUERY_HANDLER_NAME = "ActorQueryHandler";
private ResolverQueryMsg _actorQueryMessage;
private ResolverResponseMsg _actorQueryResponse = null;
private Authenticator _authenticator;
private CompositeEntity _cachedLib;
private String _configDir;
private static final String _CONFIG_DIR = "pae.config.dir";
private String _CONFIG_FILE = "EPtolemy.properties";
// private Credential _credential;
private DiscoveryService _discoveryService;
private String _Dir = ".";
private static final String _DISCOVERED_ACTORS = "discoveredActors.xml";
private PeerGroup _group;
private PeerGroupAdvertisement _groupAdv;
private PeerGroup _netPeerGroup;
private OutputPipe _outputPipe;
private ResolverQueryMsg _pipeAdvMessage;
private PipeService _pipeSvc;
private Properties _properties;
private PipeAdvertisement _ptPipeAdv;
private ResolverService _resolverService;
private final static String _TAG = "sharedPtActor";
private static final MimeMediaType _XML_MIME_TYPE = new MimeMediaType(
"text/xml");
}