From eecd78b94b55c451a20dc9b07e41bf885e07eebb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eric=20F=C3=B6rster?= <efoerster@users.noreply.github.com>
Date: Sun, 3 Mar 2019 15:34:59 +0100
Subject: [PATCH] Make MetadataProvider suspendable

---
 .../texlab/metadata/BibtexEntryTypeMetadataProvider.kt   | 2 +-
 .../texlab/metadata/LatexComponentMetadataProvider.kt    | 9 +++++++--
 src/main/kotlin/texlab/metadata/MetadataProvider.kt      | 2 +-
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/main/kotlin/texlab/metadata/BibtexEntryTypeMetadataProvider.kt b/src/main/kotlin/texlab/metadata/BibtexEntryTypeMetadataProvider.kt
index f8dc1a21..93c9c8bb 100644
--- a/src/main/kotlin/texlab/metadata/BibtexEntryTypeMetadataProvider.kt
+++ b/src/main/kotlin/texlab/metadata/BibtexEntryTypeMetadataProvider.kt
@@ -4,7 +4,7 @@ import org.eclipse.lsp4j.MarkupContent
 import org.eclipse.lsp4j.MarkupKind
 
 object BibtexEntryTypeMetadataProvider : MetadataProvider {
-    override fun getMetadata(name: String): Metadata? {
+    override suspend fun getMetadata(name: String): Metadata? {
         val markdown = DOCUMENTATION_BY_NAME[name] ?: return null
         val documentation = MarkupContent().apply {
             kind = MarkupKind.MARKDOWN
diff --git a/src/main/kotlin/texlab/metadata/LatexComponentMetadataProvider.kt b/src/main/kotlin/texlab/metadata/LatexComponentMetadataProvider.kt
index e2c67968..3fb2be1b 100644
--- a/src/main/kotlin/texlab/metadata/LatexComponentMetadataProvider.kt
+++ b/src/main/kotlin/texlab/metadata/LatexComponentMetadataProvider.kt
@@ -4,15 +4,20 @@ import com.fasterxml.jackson.databind.DeserializationFeature
 import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
 import com.fasterxml.jackson.module.kotlin.readValue
 import com.overzealous.remark.Remark
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 import org.eclipse.lsp4j.MarkupContent
 import org.eclipse.lsp4j.MarkupKind
 import java.io.IOException
 import java.net.URL
 
 object LatexComponentMetadataProvider : MetadataProvider {
-    override fun getMetadata(name: String): Metadata? {
+    override suspend fun getMetadata(name: String): Metadata? {
         return try {
-            val json = URL("https://ctan.org/json/2.0/pkg/$name").readText()
+            val json = withContext(Dispatchers.IO) {
+                URL("https://ctan.org/json/2.0/pkg/$name").readText()
+            }
+
             val mapper = jacksonObjectMapper()
                     .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
             val result = mapper.readValue<Component>(json)
diff --git a/src/main/kotlin/texlab/metadata/MetadataProvider.kt b/src/main/kotlin/texlab/metadata/MetadataProvider.kt
index d339dc89..8b0899de 100644
--- a/src/main/kotlin/texlab/metadata/MetadataProvider.kt
+++ b/src/main/kotlin/texlab/metadata/MetadataProvider.kt
@@ -1,5 +1,5 @@
 package texlab.metadata
 
 interface MetadataProvider {
-    fun getMetadata(name: String): Metadata?
+    suspend fun getMetadata(name: String): Metadata?
 }