From be6a9822e38885104f335556582c40e09e9d9d41 Mon Sep 17 00:00:00 2001
From: Vladimir Krivosheev <vladimir.krivosheev@jetbrains.com>
Date: Fri, 13 Apr 2018 16:53:00 +0200
Subject: [PATCH] =?UTF-8?q?StateMap=20=E2=80=94=20use=20LZ4=20instead=20of?=
 =?UTF-8?q?=20snappy?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../intellij.platform.configurationStore.impl.iml         | 1 +
 platform/configuration-store-impl/src/StateMap.kt         | 8 ++++----
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/platform/configuration-store-impl/intellij.platform.configurationStore.impl.iml b/platform/configuration-store-impl/intellij.platform.configurationStore.impl.iml
index dff8522ccef4..dcd0f841392f 100644
--- a/platform/configuration-store-impl/intellij.platform.configurationStore.impl.iml
+++ b/platform/configuration-store-impl/intellij.platform.configurationStore.impl.iml
@@ -20,5 +20,6 @@
     <orderEntry type="module" module-name="intellij.platform.testExtensions" scope="TEST" />
     <orderEntry type="module" module-name="intellij.platform.testFramework" scope="TEST" />
     <orderEntry type="library" name="XStream" level="project" />
+    <orderEntry type="library" name="lz4-java" level="project" />
   </component>
 </module>
\ No newline at end of file
diff --git a/platform/configuration-store-impl/src/StateMap.kt b/platform/configuration-store-impl/src/StateMap.kt
index 64ee82d9ad5d..93fbbde43d20 100644
--- a/platform/configuration-store-impl/src/StateMap.kt
+++ b/platform/configuration-store-impl/src/StateMap.kt
@@ -9,8 +9,8 @@ import com.intellij.util.ArrayUtil
 import com.intellij.util.SystemProperties
 import com.intellij.util.isEmpty
 import gnu.trove.THashMap
-import org.iq80.snappy.SnappyFramedInputStream
-import org.iq80.snappy.SnappyFramedOutputStream
+import net.jpountz.lz4.LZ4BlockInputStream
+import net.jpountz.lz4.LZ4BlockOutputStream
 import org.jdom.Element
 import java.io.ByteArrayInputStream
 import java.util.*
@@ -18,13 +18,13 @@ import java.util.concurrent.atomic.AtomicReferenceArray
 
 fun archiveState(state: Element): BufferExposingByteArrayOutputStream {
   val byteOut = BufferExposingByteArrayOutputStream()
-  SnappyFramedOutputStream(byteOut).use {
+  LZ4BlockOutputStream(byteOut).use {
     serializeElementToBinary(state, it)
   }
   return byteOut
 }
 
-private fun unarchiveState(state: ByteArray) = SnappyFramedInputStream(ByteArrayInputStream(state), false).use { deserializeElementFromBinary(it) }
+private fun unarchiveState(state: ByteArray) = LZ4BlockInputStream(ByteArrayInputStream(state)).use { deserializeElementFromBinary(it) }
 
 fun getNewByteIfDiffers(key: String, newState: Any, oldState: ByteArray): ByteArray? {
   val newBytes: ByteArray