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supported schemaEvolution when restarting the paimon cdc job
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33 changes: 33 additions & 0 deletions
33
paimon-common/src/main/java/org/apache/paimon/compression/ZstdBlockCompressionFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package org.apache.paimon.compression; | ||
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| /** Implementation of {@link BlockCompressionFactory} for zstd codec. */ | ||
| public class ZstdBlockCompressionFactory implements BlockCompressionFactory { | ||
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| @Override | ||
| public BlockCompressor getCompressor() { | ||
| return new ZstdBlockCompressor(); | ||
| } | ||
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| @Override | ||
| public BlockDecompressor getDecompressor() { | ||
| return new ZstdBlockDecompressor(); | ||
| } | ||
| } |
96 changes: 96 additions & 0 deletions
96
paimon-common/src/main/java/org/apache/paimon/compression/ZstdBlockCompressor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package org.apache.paimon.compression; | ||
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| import com.github.luben.zstd.RecyclingBufferPool; | ||
| import com.github.luben.zstd.ZstdOutputStream; | ||
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| import java.io.ByteArrayOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
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| import static org.apache.paimon.compression.CompressorUtils.HEADER_LENGTH; | ||
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| /** A {@link BlockCompressor} for zstd. */ | ||
| public class ZstdBlockCompressor implements BlockCompressor { | ||
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| private static final int MAX_BLOCK_SIZE = 128 * 1024; | ||
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| @Override | ||
| public int getMaxCompressedSize(int srcSize) { | ||
| return HEADER_LENGTH + zstdMaxCompressedLength(srcSize); | ||
| } | ||
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| private int zstdMaxCompressedLength(int uncompressedSize) { | ||
| // refer to io.airlift.compress.zstd.ZstdCompressor | ||
| int result = uncompressedSize + (uncompressedSize >>> 8); | ||
| if (uncompressedSize < MAX_BLOCK_SIZE) { | ||
| result += (MAX_BLOCK_SIZE - uncompressedSize) >>> 11; | ||
| } | ||
| return result; | ||
| } | ||
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| @Override | ||
| public int compress(byte[] src, int srcOff, int srcLen, byte[] dst, int dstOff) | ||
| throws BufferCompressionException { | ||
| ByteArrayOutputStream stream = new ByteArrayOutputStream(dst, dstOff); | ||
| try (ZstdOutputStream zstdStream = | ||
| new ZstdOutputStream(stream, RecyclingBufferPool.INSTANCE, 1)) { | ||
| zstdStream.setWorkers(0); | ||
| zstdStream.write(src, srcOff, srcLen); | ||
| } catch (IOException e) { | ||
| throw new BufferCompressionException(e); | ||
| } | ||
| return stream.position() - dstOff; | ||
| } | ||
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| private static class ByteArrayOutputStream extends OutputStream { | ||
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| private final byte[] buf; | ||
| private int position; | ||
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| public ByteArrayOutputStream(byte[] buf, int position) { | ||
| this.buf = buf; | ||
| this.position = position; | ||
| } | ||
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| @Override | ||
| public void write(int b) { | ||
| buf[position] = (byte) b; | ||
| position += 1; | ||
| } | ||
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| @Override | ||
| public void write(byte[] b, int off, int len) throws IOException { | ||
| if ((off < 0) || (off > b.length) || (len < 0) || ((off + len) - b.length > 0)) { | ||
| throw new IndexOutOfBoundsException(); | ||
| } | ||
| try { | ||
| System.arraycopy(b, off, buf, position, len); | ||
| } catch (IndexOutOfBoundsException e) { | ||
| throw new IOException(e); | ||
| } | ||
| position += len; | ||
| } | ||
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| int position() { | ||
| return position; | ||
| } | ||
| } | ||
| } |
54 changes: 54 additions & 0 deletions
54
paimon-common/src/main/java/org/apache/paimon/compression/ZstdBlockDecompressor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package org.apache.paimon.compression; | ||
|
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| import com.github.luben.zstd.RecyclingBufferPool; | ||
| import com.github.luben.zstd.ZstdInputStream; | ||
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| import java.io.ByteArrayInputStream; | ||
| import java.io.IOException; | ||
|
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| /** A {@link BlockDecompressor} for zstd. */ | ||
| public class ZstdBlockDecompressor implements BlockDecompressor { | ||
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| @Override | ||
| public int decompress(byte[] src, int srcOff, int srcLen, byte[] dst, int dstOff) | ||
| throws BufferDecompressionException { | ||
| ByteArrayInputStream inputStream = new ByteArrayInputStream(src, srcOff, srcLen); | ||
| try (ZstdInputStream decompressorStream = | ||
| new ZstdInputStream(inputStream, RecyclingBufferPool.INSTANCE)) { | ||
| int decompressedLen = 0; | ||
| while (true) { | ||
| int offset = dstOff + decompressedLen; | ||
| int count = decompressorStream.read(dst, offset, dst.length - offset); | ||
| if (count <= 0) { | ||
| if (decompressorStream.available() != 0) { | ||
| throw new BufferDecompressionException( | ||
| "Dst is too small and the decompression was not completed."); | ||
| } | ||
| break; | ||
| } | ||
| decompressedLen += count; | ||
| } | ||
| return decompressedLen; | ||
| } catch (IOException e) { | ||
| throw new BufferDecompressionException(e); | ||
| } | ||
| } | ||
| } |
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