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org.apache.flink.runtime.state.gemini.engine.page.bmap.GSortedRoutingValue Maven / Gradle / Ivy
/*
* 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.
*/
package org.apache.flink.runtime.state.gemini.engine.page.bmap;
import org.apache.flink.api.common.typeutils.TypeSerializer;
import org.apache.flink.runtime.state.gemini.engine.exceptions.GeminiRuntimeException;
import org.apache.flink.runtime.state.gemini.engine.page.DataPage;
import org.apache.flink.runtime.state.gemini.engine.page.PageAddress;
import org.apache.flink.runtime.state.gemini.engine.rm.GByteBuffer;
import org.apache.flink.util.Preconditions;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import static org.apache.flink.runtime.state.gemini.engine.page.bmap.GBinarySortedMap.EMPTY_G_BINARY_SORTEDMAP;
/**
* GSortedRoutingValue.
*/
public class GSortedRoutingValue extends AbstractGRoutingValue {
public static boolean isGSortedRoutingValue(BinaryValue binaryValue) {
return binaryValue instanceof BinaryValueForSplit &&
getHeaderGRoutingType(binaryValue) == DataPage.DataPageType.KSplitSortedRouting.getCode();
}
public static GBinarySortedMap getSubGBinarySortedMapWithKey(
MK mapKey, int keySlot, BinaryValue binaryValue, TypeSerializer mkTypeSerializer, GComparator gComparator) {
Preconditions.checkState(binaryValue instanceof BinaryValueForSplit);
int subMapId = ByteBufferUtils.toInt(binaryValue.getBb(),
binaryValue.getValueOffset() + getGRoutingBaseValueOffset(binaryValue) + keySlot * Integer.BYTES);
GByteBuffer bb = binaryValue.getPageMapping().getGByteBuffer(subMapId, mapKey);
if (bb == null || bb.capacity() == 0) {
return EMPTY_G_BINARY_SORTEDMAP;
}
return new GBinarySortedMap<>(bb.getByteBuffer(), mkTypeSerializer, gComparator);
}
public static PageAddress getSubMapPageAddress(int keySlot, BinaryValue binaryValue) {
Preconditions.checkState(binaryValue instanceof BinaryValueForSplit);
int subMapId = ByteBufferUtils.toInt(binaryValue.getBb(),
binaryValue.getValueOffset() + getGRoutingBaseValueOffset(binaryValue) + keySlot * Integer.BYTES);
return binaryValue.getPageMapping().getGByteBufferAddress(subMapId);
}
public static GBinarySortedMap getSubGBinarySortedMap(
MK mapKey, BinaryValue binaryValue, TypeSerializer mkTypeSerializer, GComparator gComparator) {
Preconditions.checkState(binaryValue instanceof BinaryValueForSplit);
List keyList = getKeyIndexArray(binaryValue);
int mapKeySlot = findKeySlot(keyList, gComparator, mapKey);
return getSubGBinarySortedMapWithKey(mapKey, mapKeySlot, binaryValue, mkTypeSerializer, gComparator);
}
private static int findKeySlot(List keyList, GComparator gComparator, MK mapKey) {
int low = 0, high = keyList.size() - 1;
while (low < high) {
int mid = (low + high) >> 1;
if (gComparator.compare(mapKey, keyList.get(mid)) == 0) {
return mid;
} else if (gComparator.compare(mapKey, keyList.get(mid)) > 0) {
low = mid + 1;
} else {
high = mid;
}
}
return high;
}
private static int getKeyPositionBySlot(int slot, BinaryValue binaryValue) {
return ByteBufferUtils.toInt(binaryValue.getBb(),
binaryValue.getValueOffset() + GROUTING_INFO_HEADER_LENGTH + slot * Integer.BYTES);
}
public static List getKeyIndexArray(BinaryValue binaryValue) {
int subMapCount = getSubMapCount(binaryValue);
List keyIndex = new ArrayList<>(subMapCount);
int lastKeyPosition = binaryValue.getValueOffset() + GROUTING_INFO_HEADER_LENGTH + subMapCount * Integer.BYTES;
for (int i = 0; i < subMapCount; i++) {
int curKeyPosition = binaryValue.getValueOffset() + GROUTING_INFO_HEADER_LENGTH + getKeyPositionBySlot(i, binaryValue);
keyIndex.add(new BinaryKey(binaryValue.getBb(), lastKeyPosition, curKeyPosition - lastKeyPosition, 0));
lastKeyPosition = curKeyPosition;
}
return keyIndex;
}
public static BinaryKey getKeyIndexBySlot(BinaryValue binaryValue, int slot) {
int lastKeyPosition;
if (slot == 0) {
int subMapCount = getSubMapCount(binaryValue);
lastKeyPosition = binaryValue.getValueOffset() + GROUTING_INFO_HEADER_LENGTH + subMapCount * Integer.BYTES;
} else {
lastKeyPosition = binaryValue.getValueOffset() + GROUTING_INFO_HEADER_LENGTH + getKeyPositionBySlot(slot - 1, binaryValue);
}
int curKeyPosition = binaryValue.getValueOffset() + GROUTING_INFO_HEADER_LENGTH + getKeyPositionBySlot(slot, binaryValue);
return new BinaryKey(binaryValue.getBb(), lastKeyPosition, curKeyPosition - lastKeyPosition, 0);
}
public static MK getKeyIndexBySlot(BinaryValue binaryValue, int slot, TypeSerializer keyTypeSerializer) {
try {
BinaryKey binaryKey = getKeyIndexBySlot(binaryValue, slot);
ByteBufferDataInputView byteBufferDataInputView = new ByteBufferDataInputView(binaryKey.getBb(),
binaryKey.getKeyOffset(),
binaryKey.getKeyLen());
return keyTypeSerializer.deserialize(byteBufferDataInputView);
} catch (IOException e) {
throw new GeminiRuntimeException("Exception when deserialize BinaryKey", e);
}
}
public static List> getAllSubGBinarySortedMap(
BinaryValue binaryValue, TypeSerializer mkTypeSerializer, GComparator gComparator) {
Preconditions.checkState(binaryValue instanceof BinaryValueForSplit);
int subMapCount = getSubMapCount(binaryValue);
List> subMapList = new ArrayList<>(subMapCount);
for (int i = 0; i < subMapCount; i++) {
int subMapId = ByteBufferUtils.toInt(binaryValue.getBb(),
binaryValue.getValueOffset() + getGRoutingBaseValueOffset(binaryValue) + i * Integer.BYTES);
GByteBuffer bb = binaryValue.getPageMapping().getGByteBuffer(subMapId, null);
if (bb == null || bb.capacity() == 0) {
subMapList.add(EMPTY_G_BINARY_SORTEDMAP);
} else {
subMapList.add(new GBinarySortedMap<>(bb.getByteBuffer(), mkTypeSerializer, gComparator));
}
}
return subMapList;
}
public static GBinarySortedMap getFirstOrLastSubGBinarySortedMap(
BinaryValue binaryValue,
TypeSerializer mkTypeSerializer,
GComparator gComparator,
boolean first) {
Preconditions.checkState(binaryValue instanceof BinaryValueForSplit);
int subMapCount = getSubMapCount(binaryValue);
int keySlot = first ? 0 : subMapCount - 1;
int subMapId = ByteBufferUtils.toInt(binaryValue.getBb(),
binaryValue.getValueOffset() + getGRoutingBaseValueOffset(binaryValue) + keySlot * Integer.BYTES);
GByteBuffer bb = binaryValue.getPageMapping().getGByteBuffer(subMapId, null);
return new GBinarySortedMap<>(bb.getByteBuffer(), mkTypeSerializer, gComparator);
}
}
