abhishekagarwal87 commented on code in PR #13819: URL: https://github.com/apache/druid/pull/13819#discussion_r1110565322
########## extensions-core/datasketches/src/main/java/org/apache/druid/query/aggregation/datasketches/tuple/ArrayOfDoublesSketchConstantPostAggregator.java: ########## @@ -0,0 +1,179 @@ +/* + * 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.druid.query.aggregation.datasketches.tuple; + +import com.fasterxml.jackson.annotation.JsonCreator; +import com.fasterxml.jackson.annotation.JsonProperty; +import com.google.common.base.Preconditions; +import org.apache.commons.codec.digest.DigestUtils; +import org.apache.datasketches.memory.Memory; +import org.apache.datasketches.tuple.arrayofdoubles.ArrayOfDoublesSketch; +import org.apache.datasketches.tuple.arrayofdoubles.ArrayOfDoublesSketches; +import org.apache.druid.java.util.common.ISE; +import org.apache.druid.java.util.common.StringUtils; +import org.apache.druid.java.util.common.guava.Comparators; +import org.apache.druid.query.aggregation.AggregatorFactory; +import org.apache.druid.query.aggregation.AggregatorUtil; +import org.apache.druid.query.cache.CacheKeyBuilder; +import org.apache.druid.segment.data.SafeWritableMemory; + +import java.nio.charset.StandardCharsets; +import java.util.Collections; +import java.util.Comparator; +import java.util.Map; +import java.util.Set; + + +/** Review Comment: can you add some java-docs? ########## extensions-core/datasketches/src/main/java/org/apache/druid/query/aggregation/datasketches/tuple/ArrayOfDoublesSketchConstantPostAggregator.java: ########## @@ -0,0 +1,179 @@ +/* + * 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.druid.query.aggregation.datasketches.tuple; + +import com.fasterxml.jackson.annotation.JsonCreator; +import com.fasterxml.jackson.annotation.JsonProperty; +import com.google.common.base.Preconditions; +import org.apache.commons.codec.digest.DigestUtils; +import org.apache.datasketches.memory.Memory; +import org.apache.datasketches.tuple.arrayofdoubles.ArrayOfDoublesSketch; +import org.apache.datasketches.tuple.arrayofdoubles.ArrayOfDoublesSketches; +import org.apache.druid.java.util.common.ISE; +import org.apache.druid.java.util.common.StringUtils; +import org.apache.druid.java.util.common.guava.Comparators; +import org.apache.druid.query.aggregation.AggregatorFactory; +import org.apache.druid.query.aggregation.AggregatorUtil; +import org.apache.druid.query.cache.CacheKeyBuilder; +import org.apache.druid.segment.data.SafeWritableMemory; + +import java.nio.charset.StandardCharsets; +import java.util.Collections; +import java.util.Comparator; +import java.util.Map; +import java.util.Set; + + +/** + * + */ +public class ArrayOfDoublesSketchConstantPostAggregator extends ArrayOfDoublesSketchPostAggregator +{ + + private final String value; + private final ArrayOfDoublesSketch sketchValue; + + @JsonCreator + public ArrayOfDoublesSketchConstantPostAggregator(@JsonProperty("name") String name, @JsonProperty("value") String value) + { + super(name); + Preconditions.checkArgument(value != null && !value.isEmpty(), + "Constant value cannot be null or empty, expecting base64 encoded sketch string"); + this.value = value; + this.sketchValue = deserializeSafe(value); + } + + + private ArrayOfDoublesSketch deserializeFromBase64EncodedString(final String str) + { + return deserializeFromByteArray(StringUtils.decodeBase64(str.getBytes(StandardCharsets.UTF_8))); + } + + private ArrayOfDoublesSketch deserializeFromByteArray(final byte[] data) + { + return ArrayOfDoublesSketches.wrapSketch(Memory.wrap(data)); + } + + private ArrayOfDoublesSketch deserializeFromBase64EncodedStringSafe(final String str) + { + return deserializeFromByteArraySafe(StringUtils.decodeBase64(str.getBytes(StandardCharsets.UTF_8))); + } + + private ArrayOfDoublesSketch deserializeFromByteArraySafe(final byte[] data) + { + return ArrayOfDoublesSketches.wrapSketch(SafeWritableMemory.wrap(data)); + } + + + private ArrayOfDoublesSketch deserialize(final Object serializedSketch) + { + if (serializedSketch instanceof String) { + return deserializeFromBase64EncodedString((String) serializedSketch); + } else if (serializedSketch instanceof byte[]) { + return deserializeFromByteArray((byte[]) serializedSketch); + } else if (serializedSketch instanceof ArrayOfDoublesSketch) { + return (ArrayOfDoublesSketch) serializedSketch; + } + throw new ISE("Object is not of a type that can deserialize to sketch: %s", serializedSketch.getClass()); + } + + private ArrayOfDoublesSketch deserializeSafe(final Object serializedSketch) + { + if (serializedSketch instanceof String) { Review Comment: when is this serializedSketch not a String? ########## extensions-core/datasketches/src/main/java/org/apache/druid/query/aggregation/datasketches/tuple/ArrayOfDoublesSketchConstantPostAggregator.java: ########## @@ -0,0 +1,179 @@ +/* + * 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.druid.query.aggregation.datasketches.tuple; + +import com.fasterxml.jackson.annotation.JsonCreator; +import com.fasterxml.jackson.annotation.JsonProperty; +import com.google.common.base.Preconditions; +import org.apache.commons.codec.digest.DigestUtils; +import org.apache.datasketches.memory.Memory; +import org.apache.datasketches.tuple.arrayofdoubles.ArrayOfDoublesSketch; +import org.apache.datasketches.tuple.arrayofdoubles.ArrayOfDoublesSketches; +import org.apache.druid.java.util.common.ISE; +import org.apache.druid.java.util.common.StringUtils; +import org.apache.druid.java.util.common.guava.Comparators; +import org.apache.druid.query.aggregation.AggregatorFactory; +import org.apache.druid.query.aggregation.AggregatorUtil; +import org.apache.druid.query.cache.CacheKeyBuilder; +import org.apache.druid.segment.data.SafeWritableMemory; + +import java.nio.charset.StandardCharsets; +import java.util.Collections; +import java.util.Comparator; +import java.util.Map; +import java.util.Set; + + +/** + * + */ +public class ArrayOfDoublesSketchConstantPostAggregator extends ArrayOfDoublesSketchPostAggregator +{ + + private final String value; + private final ArrayOfDoublesSketch sketchValue; + + @JsonCreator + public ArrayOfDoublesSketchConstantPostAggregator(@JsonProperty("name") String name, @JsonProperty("value") String value) + { + super(name); + Preconditions.checkArgument(value != null && !value.isEmpty(), + "Constant value cannot be null or empty, expecting base64 encoded sketch string"); + this.value = value; + this.sketchValue = deserializeSafe(value); + } + + + private ArrayOfDoublesSketch deserializeFromBase64EncodedString(final String str) + { + return deserializeFromByteArray(StringUtils.decodeBase64(str.getBytes(StandardCharsets.UTF_8))); Review Comment: you can use StringUtils.toUtf8(str) method instead. -- This is an automated message from the Apache Git Service. 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