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feat: Support crash of language server starting (#1001)
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Fixes #1001

Signed-off-by: azerr <[email protected]>
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@angelozerr
angelozerr committed Jul 26, 2023
1 parent 357eee5 commit 4b30de2
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Showing 26 changed files with 729 additions and 376 deletions.
335 changes: 234 additions & 101 deletions src/main/java/com/redhat/devtools/intellij/lsp4ij/LanguageServerWrapper.java
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39 changes: 33 additions & 6 deletions src/main/java/com/redhat/devtools/intellij/lsp4ij/LanguageServersRegistry.java
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Original file line number Diff line number Diff line change
Expand Up @@ -39,12 +39,16 @@ public abstract static class LanguageServerDefinition {

private static final int DEFAULT_LAST_DOCUMENTED_DISCONNECTED_TIMEOUT = 5;

public final @Nonnull String id;
public final @Nonnull String label;
public final @Nonnull
String id;
public final @Nonnull
String label;
public final boolean isSingleton;
public final @Nonnull Map<Language, String> languageIdMappings;
public final @Nonnull
Map<Language, String> languageIdMappings;
public final String description;
public final int lastDocumentDisconnectedTimeout;
private boolean enabled;

public LanguageServerDefinition(@Nonnull String id, @Nonnull String label, String description, boolean isSingleton, Integer lastDocumentDisconnectedTimeout) {
this.id = id;
Expand All @@ -53,6 +57,26 @@ public LanguageServerDefinition(@Nonnull String id, @Nonnull String label, Strin
this.isSingleton = isSingleton;
this.lastDocumentDisconnectedTimeout = lastDocumentDisconnectedTimeout != null && lastDocumentDisconnectedTimeout > 0 ? lastDocumentDisconnectedTimeout : DEFAULT_LAST_DOCUMENTED_DISCONNECTED_TIMEOUT;
this.languageIdMappings = new ConcurrentHashMap<>();
setEnabled(true);
}


/**
* Returns true if the language server definition is enabled and false otherwise.
*
* @return true if the language server definition is enabled and false otherwise.
*/
public boolean isEnabled() {
return enabled;
}

/**
* Set enabled the language server definition.
*
* @param enabled enabled the language server definition.
*/
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}

public void registerAssociation(@Nonnull Language language, @Nonnull String languageId) {
Expand Down Expand Up @@ -224,9 +248,12 @@ LanguageServerDefinition getDefinition(@NonNull String languageServerId) {
*/
private static class LanguageMapping {

@Nonnull public final String id;
@Nonnull public final Language language;
@Nullable public final String languageId;
@Nonnull
public final String id;
@Nonnull
public final Language language;
@Nullable
public final String languageId;

public LanguageMapping(@Nonnull Language language, @Nonnull String id, @Nullable String languageId) {
this.language = language;
Expand Down
120 changes: 67 additions & 53 deletions src/main/java/com/redhat/devtools/intellij/lsp4ij/LanguageServiceAccessor.java
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Original file line number Diff line number Diff line change
@@ -1,3 +1,13 @@
/*******************************************************************************
* Copyright (c) 2019 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is made available under the terms of the
* Eclipse Public License v2.0 which accompanies this distribution,
* and is available at https://www.eclipse.org/legal/epl-v20.html
*
* Contributors:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package com.redhat.devtools.intellij.lsp4ij;

import com.intellij.lang.Language;
Expand All @@ -21,31 +31,23 @@
import javax.annotation.Nullable;
import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Queue;
import java.util.Set;
import java.util.*;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.function.Predicate;
import java.util.stream.Collectors;

/**
* Language server accessor.
*/
public class LanguageServiceAccessor {
private static final Logger LOGGER = LoggerFactory.getLogger(LanguageServiceAccessor.class);
private final Project project;

public static LanguageServiceAccessor getInstance(Project project) {
return ServiceManager.getService(project, LanguageServiceAccessor.class);
}

private LanguageServiceAccessor(Project project) {
this.project = project;
}
Expand All @@ -64,6 +66,15 @@ public void clearStartedServers() {
}
}

/**
* Return the started servers.
*
* @return the started servers.
*/
public Set<LanguageServerWrapper> getStartedServers() {
return startedServers;
}

void shutdownAllDispatchers() {
startedServers.forEach(LanguageServerWrapper::stopDispatcher);
}
Expand Down Expand Up @@ -201,7 +212,7 @@ public void enableLanguageServerContentType(
*/
@Deprecated
public LanguageServer getLanguageServer(@Nonnull VirtualFile file, @Nonnull LanguageServersRegistry.LanguageServerDefinition lsDefinition,
Predicate<ServerCapabilities> capabilitiesPredicate)
Predicate<ServerCapabilities> capabilitiesPredicate)
throws IOException {
LanguageServerWrapper wrapper = getLSWrapperForConnection(LSPIJUtils.getProject(file), lsDefinition, LSPIJUtils.toUri(file));
if (capabilitiesPredicate == null
Expand All @@ -222,8 +233,8 @@ public LanguageServer getLanguageServer(@Nonnull VirtualFile file, @Nonnull Lang
* @return a LanguageServer for the given file, which is defined with provided server ID and conforms to specified request
*/
public CompletableFuture<LanguageServer> getInitializedLanguageServer(@Nonnull VirtualFile file,
@Nonnull LanguageServersRegistry.LanguageServerDefinition lsDefinition,
Predicate<ServerCapabilities> capabilitiesPredicate)
@Nonnull LanguageServersRegistry.LanguageServerDefinition lsDefinition,
Predicate<ServerCapabilities> capabilitiesPredicate)
throws IOException {
LanguageServerWrapper wrapper = getLSWrapperForConnection(LSPIJUtils.getProject(file), lsDefinition, LSPIJUtils.toUri(file));
if (capabilitiesPredicate == null
Expand All @@ -239,17 +250,16 @@ public CompletableFuture<LanguageServer> getInitializedLanguageServer(@Nonnull V
* Get the requested language server instance for the given document. Starts the
* language server if not already started.
*
* @param document the document for which the initialized LanguageServer shall be returned
* @param serverId the ID of the LanguageServer to be returned
* @param capabilitesPredicate
* a predicate to check capabilities
* @param document the document for which the initialized LanguageServer shall be returned
* @param serverId the ID of the LanguageServer to be returned
* @param capabilitesPredicate a predicate to check capabilities
* @return a LanguageServer for the given file, which is defined with provided
* server ID and conforms to specified request. If
* {@code capabilitesPredicate} does not test positive for the server's
* capabilities, {@code null} is returned.
* server ID and conforms to specified request. If
* {@code capabilitesPredicate} does not test positive for the server's
* capabilities, {@code null} is returned.
*/
public CompletableFuture<LanguageServer> getInitializedLanguageServer(Document document,
LanguageServersRegistry.LanguageServerDefinition lsDefinition, Predicate<ServerCapabilities> capabilitiesPredicate)
LanguageServersRegistry.LanguageServerDefinition lsDefinition, Predicate<ServerCapabilities> capabilitiesPredicate)
throws IOException {
URI initialPath = LSPIJUtils.toUri(document);
LanguageServerWrapper wrapper = getLSWrapperForConnection(document, lsDefinition, initialPath);
Expand All @@ -264,15 +274,13 @@ public CompletableFuture<LanguageServer> getInitializedLanguageServer(Document d
* Checks if the given {@code wrapper}'s capabilities comply with the given
* {@code capabilitiesPredicate}.
*
* @param wrapper
* the server that's capabilities are tested with
* {@code capabilitiesPredicate}
* @param capabilitiesPredicate
* predicate testing the capabilities of {@code wrapper}.
* @param wrapper the server that's capabilities are tested with
* {@code capabilitiesPredicate}
* @param capabilitiesPredicate predicate testing the capabilities of {@code wrapper}.
* @return The result of applying the capabilities of {@code wrapper} to
* {@code capabilitiesPredicate}, or {@code false} if
* {@code capabilitiesPredicate == null} or
* {@code wrapper.getServerCapabilities() == null}
* {@code capabilitiesPredicate}, or {@code false} if
* {@code capabilitiesPredicate == null} or
* {@code wrapper.getServerCapabilities() == null}
*/
private static boolean capabilitiesComply(LanguageServerWrapper wrapper,
Predicate<ServerCapabilities> capabilitiesPredicate) {
Expand All @@ -282,8 +290,6 @@ private static boolean capabilitiesComply(LanguageServerWrapper wrapper,
}




/**
* TODO we need a similar method for generic IDocument (enabling non-IFiles)
*
Expand All @@ -296,7 +302,7 @@ private static boolean capabilitiesComply(LanguageServerWrapper wrapper,
*/
@Nonnull
public Collection<LanguageServerWrapper> getLSWrappers(@Nonnull VirtualFile file,
@Nullable Predicate<ServerCapabilities> request) throws IOException {
@Nullable Predicate<ServerCapabilities> request) throws IOException {
LinkedHashSet<LanguageServerWrapper> res = new LinkedHashSet<>();
Module project = LSPIJUtils.getProject(file);
if (project == null) {
Expand Down Expand Up @@ -350,7 +356,7 @@ private Collection<LanguageServerWrapper> getLSWrappers(@Nonnull Document docume
res.addAll(startedServers.stream()
.filter(wrapper -> {
try {
return wrapper.isConnectedTo(path) || LanguageServersRegistry.getInstance().matches(document, wrapper.serverDefinition, project);
return wrapper.isEnabled() && (wrapper.isConnectedTo(path) || LanguageServersRegistry.getInstance().matches(document, wrapper.serverDefinition, project));
} catch (ProcessCanceledException cancellation) {
throw cancellation;
} catch (Exception e) {
Expand Down Expand Up @@ -408,13 +414,17 @@ private Collection<LanguageServerWrapper> getLSWrappers(@Nonnull Document docume
*/
@Deprecated
public LanguageServerWrapper getLSWrapperForConnection(@Nonnull Module project,
@Nonnull LanguageServersRegistry.LanguageServerDefinition serverDefinition) throws IOException {
@Nonnull LanguageServersRegistry.LanguageServerDefinition serverDefinition) throws IOException {
return getLSWrapperForConnection(project, serverDefinition, null);
}

@Deprecated
private LanguageServerWrapper getLSWrapperForConnection(@Nonnull Module project,
@Nonnull LanguageServersRegistry.LanguageServerDefinition serverDefinition, @Nullable URI initialPath) throws IOException {
@Nonnull LanguageServersRegistry.LanguageServerDefinition serverDefinition, @Nullable URI initialPath) throws IOException {
if (!serverDefinition.isEnabled()) {
// don't return a language server wrapper for the given server definition
return null;
}
LanguageServerWrapper wrapper = null;

synchronized (startedServers) {
Expand All @@ -436,7 +446,11 @@ private LanguageServerWrapper getLSWrapperForConnection(@Nonnull Module project,
}

private LanguageServerWrapper getLSWrapperForConnection(Document document,
LanguageServersRegistry.LanguageServerDefinition serverDefinition, URI initialPath) throws IOException {
LanguageServersRegistry.LanguageServerDefinition serverDefinition, URI initialPath) throws IOException {
if (!serverDefinition.isEnabled()) {
// don't return a language server wrapper for the given server definition
return null;
}
LanguageServerWrapper wrapper = null;

synchronized (startedServers) {
Expand Down Expand Up @@ -476,9 +490,8 @@ private List<LanguageServerWrapper> getStartedLSWrappers(Predicate<LanguageServe
}



private Collection<LanguageServerWrapper> getMatchingStartedWrappers(@Nonnull VirtualFile file,
@Nullable Predicate<ServerCapabilities> request) {
@Nullable Predicate<ServerCapabilities> request) {
synchronized (startedServers) {
return startedServers.stream().filter(wrapper -> wrapper.isConnectedTo(LSPIJUtils.toUri(file))
|| (LanguageServersRegistry.getInstance().matches(file, wrapper.serverDefinition, project)
Expand Down Expand Up @@ -509,7 +522,7 @@ public List<LanguageServer> getActiveLanguageServers(Predicate<ServerCapabilitie
*/
@Nonnull
public List<LanguageServer> getLanguageServers(@Nonnull Module project,
Predicate<ServerCapabilities> request) {
Predicate<ServerCapabilities> request) {
return getLanguageServers(project, request, false);
}

Expand All @@ -523,7 +536,7 @@ public List<LanguageServer> getLanguageServers(@Nonnull Module project,
*/
@Nonnull
public List<LanguageServer> getLanguageServers(@Nullable Module project,
Predicate<ServerCapabilities> request, boolean onlyActiveLS) {
Predicate<ServerCapabilities> request, boolean onlyActiveLS) {
List<LanguageServer> serverInfos = new ArrayList<>();
for (LanguageServerWrapper wrapper : startedServers) {
if ((!onlyActiveLS || wrapper.isActive()) && (project == null || wrapper.canOperate(project))) {
Expand Down Expand Up @@ -576,16 +589,17 @@ public CompletableFuture<List<Pair<LanguageServerWrapper, LanguageServer>>> getL
final List<Pair<LanguageServerWrapper, LanguageServer>> res = Collections.synchronizedList(new ArrayList<>());
try {
return CompletableFuture.allOf(getLSWrappers(document).stream().map(wrapper ->
wrapper.getInitializedServer().thenComposeAsync(server -> {
if (server != null && (filter == null || filter.test(wrapper.getServerCapabilities()))) {
try {
return wrapper.connect(document);
} catch (IOException ex) {
LOGGER.warn(ex.getLocalizedMessage(), ex);
}
}
return CompletableFuture.completedFuture(null);
}).thenAccept(server -> {
wrapper.getInitializedServer()
.thenComposeAsync(server -> {
if (server != null && wrapper.isEnabled() && (filter == null || filter.test(wrapper.getServerCapabilities()))) {
try {
return wrapper.connect(document);
} catch (IOException ex) {
LOGGER.warn(ex.getLocalizedMessage(), ex);
}
}
return CompletableFuture.completedFuture(null);
}).thenAccept(server -> {
if (server != null) {
res.add(new Pair(wrapper, server));
}
Expand Down
14 changes: 7 additions & 7 deletions ...lsp4ij/console/explorer/ServerStatus.java → ...evtools/intellij/lsp4ij/ServerStatus.java
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Original file line number Diff line number Diff line change
Expand Up @@ -11,17 +11,17 @@
* Contributors:
* Red Hat Inc. - initial API and implementation
*******************************************************************************/
package com.redhat.devtools.intellij.lsp4ij.console.explorer;
package com.redhat.devtools.intellij.lsp4ij;

/**
* Language server status.
*/
public enum ServerStatus {

startingProcess,
startedProcess,
starting,
started,
stopping,
stopped;
none, // initial status
starting, // The language server process is starting
started, // The language server is started without error
stopping, // The language server is stopping
stopped // The language server is stopped with or without error;

}
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