Split library/cpp/streams/lz into separate codecs

4 files changed, 111 insertions, 79 deletions

diff --git a/library/cpp/streams/lz/common/error.h b/library/cpp/streams/lz/common/error.h
new file mode 100644
index 00000000000..371945d5b43
--- /dev/null
+++ b/library/cpp/streams/lz/common/error.h
@@ -0,0 +1,6 @@
+#pragma once
+
+#include <util/generic/yexception.h>
+
+struct TDecompressorError: public yexception {
+};
diff --git a/library/cpp/streams/lz/lz.h b/library/cpp/streams/lz/lz.h
index 3a2eaad88b0..2124d8b4bc2 100644
--- a/library/cpp/streams/lz/lz.h
+++ b/library/cpp/streams/lz/lz.h
@@ -5,6 +5,11 @@
 #include <util/generic/ptr.h>
 #include <util/generic/yexception.h>
 
+#include <library/cpp/streams/lz/common/error.h>
+
+#include <library/cpp/streams/lz/lz4/lz4.h>
+#include <library/cpp/streams/lz/snappy/snappy.h>
+
 /**
  * @file
  *
@@ -17,91 +22,12 @@
  * for some comparisons.
  */
 
-struct TDecompressorError: public yexception {
-};
-
 /**
  * @addtogroup Streams_Archs
  * @{
  */
 
 /**
- * Lz4 compressing stream.
- *
- * @see http://code.google.com/p/lz4/
- */
-class TLz4Compress: public IOutputStream {
-public:
-    TLz4Compress(IOutputStream* slave, ui16 maxBlockSize = 1 << 15);
-    ~TLz4Compress() override;
-
-private:
-    void DoWrite(const void* buf, size_t len) override;
-    void DoFlush() override;
-    void DoFinish() override;
-
-private:
-    class TImpl;
-    THolder<TImpl> Impl_;
-};
-
-/**
- * Lz4 decompressing stream.
- *
- * @see http://code.google.com/p/lz4/
- */
-class TLz4Decompress: public IInputStream {
-public:
-    TLz4Decompress(IInputStream* slave);
-    ~TLz4Decompress() override;
-
-private:
-    size_t DoRead(void* buf, size_t len) override;
-
-private:
-    class TImpl;
-    THolder<TImpl> Impl_;
-};
-
-/**
- * Snappy compressing stream.
- *
- * @see http://code.google.com/p/snappy/
- */
-class TSnappyCompress: public IOutputStream {
-public:
-    TSnappyCompress(IOutputStream* slave, ui16 maxBlockSize = 1 << 15);
-    ~TSnappyCompress() override;
-
-private:
-    void DoWrite(const void* buf, size_t len) override;
-    void DoFlush() override;
-    void DoFinish() override;
-
-private:
-    class TImpl;
-    THolder<TImpl> Impl_;
-};
-
-/**
- * Snappy decompressing stream.
- *
- * @see http://code.google.com/p/snappy/
- */
-class TSnappyDecompress: public IInputStream {
-public:
-    TSnappyDecompress(IInputStream* slave);
-    ~TSnappyDecompress() override;
-
-private:
-    size_t DoRead(void* buf, size_t len) override;
-
-private:
-    class TImpl;
-    THolder<TImpl> Impl_;
-};
-
-/**
  * MiniLZO compressing stream.
  */
 class TLzoCompress: public IOutputStream {
diff --git a/library/cpp/streams/lz/lz4/lz4.h b/library/cpp/streams/lz/lz4/lz4.h
new file mode 100644
index 00000000000..24d66c80719
--- /dev/null
+++ b/library/cpp/streams/lz/lz4/lz4.h
@@ -0,0 +1,50 @@
+#pragma once
+
+#include <util/stream/output.h>
+#include <util/stream/input.h>
+#include <util/generic/ptr.h>
+
+/**
+ * @addtogroup Streams_Archs
+ * @{
+ */
+
+/**
+ * Lz4 compressing stream.
+ *
+ * @see http://code.google.com/p/lz4/
+ */
+class TLz4Compress: public IOutputStream {
+public:
+    TLz4Compress(IOutputStream* slave, ui16 maxBlockSize = 1 << 15);
+    ~TLz4Compress() override;
+
+private:
+    void DoWrite(const void* buf, size_t len) override;
+    void DoFlush() override;
+    void DoFinish() override;
+
+private:
+    class TImpl;
+    THolder<TImpl> Impl_;
+};
+
+/**
+ * Lz4 decompressing stream.
+ *
+ * @see http://code.google.com/p/lz4/
+ */
+class TLz4Decompress: public IInputStream {
+public:
+    TLz4Decompress(IInputStream* slave);
+    ~TLz4Decompress() override;
+
+private:
+    size_t DoRead(void* buf, size_t len) override;
+
+private:
+    class TImpl;
+    THolder<TImpl> Impl_;
+};
+
+/** @} */
diff --git a/library/cpp/streams/lz/snappy/snappy.h b/library/cpp/streams/lz/snappy/snappy.h
new file mode 100644
index 00000000000..2e680217aab
--- /dev/null
+++ b/library/cpp/streams/lz/snappy/snappy.h
@@ -0,0 +1,50 @@
+#pragma once
+
+#include <util/stream/output.h>
+#include <util/stream/input.h>
+#include <util/generic/ptr.h>
+
+/**
+ * @addtogroup Streams_Archs
+ * @{
+ */
+
+/**
+ * Snappy compressing stream.
+ *
+ * @see http://code.google.com/p/snappy/
+ */
+class TSnappyCompress: public IOutputStream {
+public:
+    TSnappyCompress(IOutputStream* slave, ui16 maxBlockSize = 1 << 15);
+    ~TSnappyCompress() override;
+
+private:
+    void DoWrite(const void* buf, size_t len) override;
+    void DoFlush() override;
+    void DoFinish() override;
+
+private:
+    class TImpl;
+    THolder<TImpl> Impl_;
+};
+
+/**
+ * Snappy decompressing stream.
+ *
+ * @see http://code.google.com/p/snappy/
+ */
+class TSnappyDecompress: public IInputStream {
+public:
+    TSnappyDecompress(IInputStream* slave);
+    ~TSnappyDecompress() override;
+
+private:
+    size_t DoRead(void* buf, size_t len) override;
+
+private:
+    class TImpl;
+    THolder<TImpl> Impl_;
+};
+
+/** @} */