private boolean waitForCodeServer() {
try {
OtpErlangObject r;
int i = 30;
boolean gotIt = false;
do {
r = call("erlang", "whereis", "a", "code_server");
gotIt = !(r instanceof OtpErlangPid);
if (!gotIt) {
try {
Thread.sleep(200);
} catch (final InterruptedException e) {
}
}
i--;
} while (gotIt && i > 0);
if (gotIt) {
ErlLogger.error("code server did not start in time for %s", getNodeName());
return false;
}
ErlLogger.debug("code server started");
return true;
} catch (final Exception e) {
ErlLogger.error("error starting code server for %s: %s", getNodeName(), e.getMessage());
return false;
}
}
private void findRefs(
final IErlModule theModule, final ITextSelection aSelection, final boolean hasChanged) {
final IBackend ideBackend = BackendCore.getBackendManager().getIdeBackend();
fRefs = null;
if (fCanceled) {
return;
}
try {
final int offset = aSelection.getOffset();
final OpenResult res =
ErlideOpen.open(
ideBackend.getRpcSite(),
theModule,
offset,
ModelUtils.getImportsAsList(theModule),
"",
ErlModelManager.getErlangModel().getPathVars());
final ErlangSearchPattern pattern =
SearchUtil.getSearchPatternFromOpenResultAndLimitTo(
theModule, offset, res, LimitTo.ALL_OCCURRENCES, false);
if (fCanceled) {
return;
}
if (pattern != null) {
final ErlSearchScope scope = new ErlSearchScope();
scope.addModule(theModule);
final List<ModuleLineFunctionArityRef> findRefs = Lists.newArrayList();
// TODO: run in background? for large files, this can take
// seconds
final OtpErlangObject refs =
ErlideSearchServer.findRefs(
ideBackend.getRpcSite(), pattern, scope, erlangEditor.getStateDir(), true);
if (refs != null) {
SearchUtil.addSearchResult(findRefs, refs);
fRefs = erlangEditor.markOccurencesHandler.getErlangRefs(theModule, findRefs);
}
}
} catch (final RpcTimeoutException e) {
if (!ideBackend.isStopped()) {
ErlLogger.warn(e);
}
} catch (final RpcException e) {
ErlLogger.debug(e);
} catch (final ErlModelException e) {
ErlLogger.debug(e);
} catch (final OtpErlangRangeException e) {
ErlLogger.debug(e);
}
if (fRefs == null) {
if (!erlangEditor.markOccurencesHandler.fStickyOccurrenceAnnotations) {
erlangEditor.markOccurencesHandler.removeOccurrenceAnnotations();
} else if (hasChanged) {
erlangEditor.markOccurencesHandler.removeOccurrenceAnnotations();
}
}
}
@Override
public void reconcile(final ErlDirtyRegion r) {
if (fModule != null) {
ErlLogger.debug("## reconcile " + fModule.getName());
fModule.reconcileText(r.getOffset(), r.getLength(), r.getText(), mon);
}
}
private void wait_for_epmd(final String host) throws BackendException {
// If anyone has a better solution for waiting for epmd to be up, please
// let me know
int tries = 50;
boolean ok = false;
do {
Socket s;
try {
s = new Socket(host, EPMD_PORT);
s.close();
ok = true;
} catch (final IOException e) {
}
try {
Thread.sleep(100);
// ErlLogger.debug("sleep............");
} catch (final InterruptedException e1) {
}
tries--;
} while (!ok && tries > 0);
if (!ok) {
final String msg =
"Couldn't contact epmd - erlang backend is probably not working\n"
+ " Possibly your host's entry in /etc/hosts is wrong ("
+ host
+ ").";
ErlLogger.error(msg);
throw new BackendException(msg);
}
}
public static void delete(final IRpcSite fBackend, final String moduleName) {
try {
fBackend.call("code", "delete", "a", moduleName);
} catch (final Exception e) {
ErlLogger.debug(e);
}
}
private void tryConnect() throws RpcException {
synchronized (connectLock) {
switch (state) {
case DISCONNECTED:
reported = false;
if (connectRetry()) {
state = State.CONNECTED;
} else if (connectOnce) {
state = State.DOWN;
} else {
state = State.DISCONNECTED;
}
break;
case CONNECTED:
break;
case DOWN:
try {
if (process != null) {
process.terminate();
}
} catch (final DebugException e) {
ErlLogger.info(e);
}
// TODO restart it??
// process =
if (!stopped) {
final String msg = reportRuntimeDown(data.getNodeName());
throw new RpcException(msg);
}
}
}
}
public static void addPathZ(final IRpcSite backend, final String path) {
try {
backend.call("code", "add_pathz", "s", path);
} catch (final Exception e) {
ErlLogger.debug(e);
}
}
@Override
public void initialReconcile() {
fModule = fEditor != null ? fEditor.getModule() : null;
ErlLogger.debug("## initial reconcile " + (fModule != null ? fModule.getName() : ""));
if (fModule != null) {
fModule.initialReconcile();
}
// notify(new OtpErlangAtom("initialReconcile"));
}
private boolean connectRetry() {
int tries = MAX_RETRIES;
boolean ok = false;
while (!ok && tries > 0) {
ErlLogger.debug("# ping..." + getNodeName() + " " + Thread.currentThread().getName());
ok = localNode.ping(getNodeName(), RETRY_DELAY + (MAX_RETRIES - tries) * RETRY_DELAY % 3);
tries--;
}
return ok;
}
public static void load(final IRpcSite backend, String name) {
if (name.endsWith(".beam")) {
name = name.substring(0, name.length() - 5);
}
try {
backend.call("c", "l", "a", name);
} catch (final Exception e) {
ErlLogger.debug(e);
}
}
private List<IProject> gatherProjects(final String[] projectNames) {
final List<IProject> myProjects = Lists.newArrayList();
for (final String s : projectNames) {
final IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(s);
if (project == null) {
ErlLogger.error("Launch: project not found: '%s'!", s);
continue;
}
myProjects.add(project);
}
return myProjects;
}
@Override
public Object[] getChildren(final Object parent) {
if (parent instanceof IParent) {
final IParent p = (IParent) parent;
try {
return p.getChildren().toArray();
} catch (final ErlModelException x) {
if (!x.isDoesNotExist()) {
ErlLogger.debug("element missing: " + x.getMessage());
}
}
}
return NO_CHILDREN;
}
private void fillProcessesList(final TableViewer tableViewer) {
final IProgressService ps = PlatformUI.getWorkbench().getProgressService();
try {
ps.busyCursorWhile(
new IRunnableWithProgress() {
@Override
public void run(final IProgressMonitor pm) {
final TracedProcess[] processesList = ProcessHelper.getProcsOnTracedNodes();
TraceBackend.getInstance().setProcesses(processesList);
}
});
} catch (final Exception e) {
ErlLogger.error(e);
}
}
public static void removePath(final IRpcSite backend, String path) {
try {
// workaround for bug in code:del_path
try {
final OtpErlangObject rr =
backend.call("filename", "join", "x", new OtpErlangList(new OtpErlangString(path)));
path = ((OtpErlangString) rr).stringValue();
} catch (final Exception e) {
// ignore
}
backend.call("code", "del_path", "s", path);
} catch (final Exception e) {
ErlLogger.debug(e);
}
}
@Override
public void launch(final ISelection selection, final String mode) {
ErlLogger.debug("** Launch:: " + selection.toString());
if (selection.isEmpty()) {
return;
}
if (!(selection instanceof IStructuredSelection)) {
return;
}
final Set<IErlProject> projects = Sets.newHashSet();
final IStructuredSelection structuredSelection = (IStructuredSelection) selection;
for (final Object element : structuredSelection.toArray()) {
if (!(element instanceof IResource)) {
return;
}
final IErlElement erlElement =
ErlModelManager.getErlangModel().findElement((IResource) element);
final IErlProject project = ModelUtils.getProject(erlElement);
if (project != null) {
projects.add(project);
}
}
if (projects.isEmpty()) {
return;
}
projects.addAll(getDependentProjects(projects));
final List<IErlProject> projectList = Lists.newArrayList(projects);
Collections.sort(
projectList,
new Comparator<IErlProject>() {
@Override
public int compare(final IErlProject o1, final IErlProject o2) {
return o1.getName().compareTo(o2.getName());
}
});
try {
doLaunch(mode, projectList);
} catch (final CoreException e) {
final IWorkbench workbench = PlatformUI.getWorkbench();
final Shell shell = workbench.getActiveWorkbenchWindow().getShell();
MessageDialog.openError(shell, "Error", e.getStatus().getMessage());
}
}
@Override
public Object execute(final ExecutionEvent event) throws ExecutionException {
// final Command command = event.getCommand();
// final boolean oldValue = HandlerUtil.toggleCommandState(command);
final String filterId = event.getParameter("org.erlide.ui.filterId");
final IEclipsePreferences prefsNode = ErlangOutlinePage.getPrefsNode();
final boolean oldValue = prefsNode.getBoolean(filterId, false);
final boolean value = !oldValue;
final Object activePart = HandlerUtil.getVariable(event, "activePart");
if (activePart instanceof ContentOutline) {
OutlineFilterUtils.addFilter(filterId, value, activePart);
}
prefsNode.putBoolean(filterId, value);
try {
prefsNode.flush();
} catch (final BackingStoreException e) {
ErlLogger.error(e);
}
return null;
}
@Override
public void launch(final IEditorPart editor, final String mode) {
ErlLogger.debug("** Launch :: " + editor.getTitle());
if (editor instanceof ErlangEditor) {
final ErlangEditor erlangEditor = (ErlangEditor) editor;
final IErlModule module = erlangEditor.getModule();
if (module != null) {
final IErlProject project = ModelUtils.getProject(module);
if (project != null) {
try {
doLaunch(mode, Lists.newArrayList(project));
} catch (final CoreException e) {
final IWorkbench workbench = PlatformUI.getWorkbench();
final Shell shell = workbench.getActiveWorkbenchWindow().getShell();
MessageDialog.openError(shell, "Error", e.getStatus().getMessage());
}
}
}
}
}
public void startLocalNode() {
boolean nodeCreated = false;
synchronized (localNodeLock) {
int i = 0;
do {
try {
i++;
localNode = ErlRuntime.createOtpNode(data.getCookie(), data.hasLongName());
localNode.registerStatusHandler(statusWatcher);
nodeCreated = true;
} catch (final IOException e) {
ErlLogger.error("ErlRuntime could not be created (%s), retrying %d", e.getMessage(), i);
try {
localNodeLock.wait(300);
} catch (final InterruptedException e1) {
}
}
} while (!nodeCreated && i < 10);
}
}
/** Method called when stopping tracing. */
private void doStopTracing() {
task =
new RunnableWithProgress("Loading trace results...") {
@Override
public void doAction() {
TraceBackend.getInstance().stop();
}
};
try {
final Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
new ProgressMonitorDialog(shell).run(true, false, task);
startStopAction.setImageDescriptor(
DebugUITools.getImageDescriptor(IDebugUIConstants.IMG_ACT_RUN));
startStopAction.setToolTipText(START_LABEL);
startStopAction.setEnabled(true);
TracingStatusHandler.handleStatus(status);
} catch (final Exception e) {
ErlLogger.error(e);
} finally {
task = null;
}
}
public static String loadPreviewContentFromFile(final Class<?> clazz, final String filename) {
String line;
final String separator = System.getProperty("line.separator"); // $NON-NLS-1$
final StringBuilder buffer = new StringBuilder(512);
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(clazz.getResourceAsStream(filename)));
while ((line = reader.readLine()) != null) {
buffer.append(line);
buffer.append(separator);
}
} catch (final IOException io) {
ErlLogger.error(io);
} finally {
if (reader != null) {
try {
reader.close();
} catch (final IOException e) {
}
}
}
return buffer.toString();
}
@Override
public void connect() {
final String label = getNodeName();
ErlLogger.debug(label + ": waiting connection to peer...");
try {
wait_for_epmd();
eventBox = createMbox("rex");
if (waitForCodeServer()) {
ErlLogger.debug("connected!");
} else {
ErlLogger.error(COULD_NOT_CONNECT_TO_BACKEND);
}
} catch (final BackendException e) {
ErlLogger.error(e);
ErlLogger.error(COULD_NOT_CONNECT_TO_BACKEND);
} catch (final Exception e) {
ErlLogger.error(e);
ErlLogger.error(COULD_NOT_CONNECT_TO_BACKEND);
}
}
@Override
public void reconcile(final IRegion partition) {
ErlLogger.error("reconcile called");
}
private static void debugPrintCookie(final String cookie) {
final int len = cookie.length();
final String trimmed = len > 7 ? cookie.substring(0, 7) : cookie;
ErlLogger.debug("using cookie '%s...'%d (info: '%s')", trimmed, len, cookie);
}
@Override
public void reconcile(final DirtyRegion dirtyRegion, final IRegion subRegion) {
ErlLogger.error("reconcile called");
}