Jackie-Jiang commented on code in PR #9389: URL: https://github.com/apache/pinot/pull/9389#discussion_r981744370
########## pinot-common/src/main/java/org/apache/pinot/common/request/context/LiteralContext.java: ########## @@ -0,0 +1,126 @@ +/** + * 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.pinot.common.request.context; + +import com.google.common.base.Preconditions; +import java.util.Objects; +import javax.annotation.Nullable; +import org.apache.pinot.common.request.Literal; +import org.apache.pinot.spi.data.FieldSpec; + + +/** + * The {@code LiteralContext} class represents a literal in the query. + * <p>This includes both value and type information. We translate thrift literal to this representation in server. + * Currently, only Boolean literal is correctly encoded in thrift and passed in. + * All integers are encoded as LONG in thrift, and the other numerical types are encoded as DOUBLE. + * The remaining types are encoded as STRING. + */ +public class LiteralContext { + // TODO: Support all of the types for sql. + private FieldSpec.DataType _type; + private Object _value; + + private static FieldSpec.DataType convertThriftTypeToDataType(Literal._Fields fields) { + switch (fields) { + case SHORT_VALUE: + case INT_VALUE: + return FieldSpec.DataType.INT; + case LONG_VALUE: + return FieldSpec.DataType.LONG; + case BOOL_VALUE: + return FieldSpec.DataType.BOOLEAN; + case DOUBLE_VALUE: + return FieldSpec.DataType.DOUBLE; + case STRING_VALUE: + return FieldSpec.DataType.STRING; + default: + throw new UnsupportedOperationException("Unsupported literal type:" + fields); + } + } + + private static Class<?> convertDataTypeToJavaType(FieldSpec.DataType dataType) { + switch (dataType) { + case INT: + return Integer.class; + case LONG: + return Long.class; + case BOOLEAN: + return Boolean.class; + case FLOAT: + return Float.class; + case DOUBLE: + return Double.class; + case STRING: + return String.class; + default: + throw new UnsupportedOperationException("Unsupported dataType:" + dataType); + } + } + + public LiteralContext(Literal literal) { + _type = convertThriftTypeToDataType(literal.getSetField()); + _value = literal.getFieldValue(); + } + + public FieldSpec.DataType getType() { + return _type; + } + + @Nullable + public Object getValue() { + return _value; + } + + public LiteralContext(FieldSpec.DataType type, Object value) { + Preconditions.checkArgument(convertDataTypeToJavaType(type) == value.getClass(), + "Unmatched data type: " + type + " java type: " + value.getClass()); + _type = type; + _value = value; + } + + @Override + public int hashCode() { + if (_value == null) { + return 31 * 31 * _type.hashCode(); + } + return 31 * 31 * _type.hashCode() + 31 * _value.hashCode(); + } + + @Override + public boolean equals(Object o) { + if (this == o) { + return true; + } + if (!(o instanceof LiteralContext)) { + return false; + } + LiteralContext that = (LiteralContext) o; + return _type.equals(that._type) && Objects.equals(_value, that._value); + } + + @Override + public String toString() { + if (_value == null) { Review Comment: Then we should return `"null"` instead of `"''"` ########## pinot-common/src/main/java/org/apache/pinot/common/request/context/ExpressionContext.java: ########## @@ -31,41 +33,58 @@ */ public class ExpressionContext { public enum Type { - LITERAL, IDENTIFIER, FUNCTION + LITERAL, IDENTIFIER, FUNCTION, Review Comment: (minor) revert ########## pinot-common/src/main/java/org/apache/pinot/common/request/context/LiteralContext.java: ########## @@ -0,0 +1,126 @@ +/** + * 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.pinot.common.request.context; + +import com.google.common.base.Preconditions; +import java.util.Objects; +import javax.annotation.Nullable; +import org.apache.pinot.common.request.Literal; +import org.apache.pinot.spi.data.FieldSpec; + + +/** + * The {@code LiteralContext} class represents a literal in the query. + * <p>This includes both value and type information. We translate thrift literal to this representation in server. + * Currently, only Boolean literal is correctly encoded in thrift and passed in. + * All integers are encoded as LONG in thrift, and the other numerical types are encoded as DOUBLE. + * The remaining types are encoded as STRING. + */ +public class LiteralContext { + // TODO: Support all of the types for sql. + private FieldSpec.DataType _type; + private Object _value; + + private static FieldSpec.DataType convertThriftTypeToDataType(Literal._Fields fields) { + switch (fields) { + case LONG_VALUE: + return FieldSpec.DataType.LONG; + case BOOL_VALUE: + return FieldSpec.DataType.BOOLEAN; + case DOUBLE_VALUE: + return FieldSpec.DataType.DOUBLE; + case STRING_VALUE: + return FieldSpec.DataType.STRING; + default: + throw new UnsupportedOperationException("Unsupported literal type:" + fields); + } + } + + private static Class<?> convertDataTypeToJavaType(FieldSpec.DataType dataType) { + switch (dataType) { + case INT: + return Integer.class; + case LONG: + return Long.class; + case BOOLEAN: + return Boolean.class; + case FLOAT: + return Float.class; + case DOUBLE: + return Double.class; + case STRING: + return String.class; + default: + throw new UnsupportedOperationException("Unsupported dataType:" + dataType); + } + } + + public LiteralContext(Literal literal) { + _type = convertThriftTypeToDataType(literal.getSetField()); + _value = literal.getFieldValue(); + } + + public FieldSpec.DataType getType() { + return _type; + } + + @Nullable + public Object getValue() { + return _value; + } + + public LiteralContext(FieldSpec.DataType type, Object value) { + Preconditions.checkArgument(convertDataTypeToJavaType(type) == value.getClass(), + "Unmatched data type: " + type + " java type: " + value.getClass()); + _type = type; + _value = value; + } + + @Override + public int hashCode() { + if (_value == null) { + return 31 * 31 * _type.hashCode(); + } + return 31 * 31 * _type.hashCode() + 31 * _value.hashCode(); + } + + @Override + public boolean equals(Object o) { + if (this == o) { + return true; + } + if (!(o instanceof LiteralContext)) { + return false; + } + LiteralContext that = (LiteralContext) o; + return _type.equals(that._type) && Objects.equals(_value, that._value); + } + + @Override + public String toString() { + if (_value == null) { + return '\'' + "" + '\''; + } + // TODO: print out the type. + if(_type == FieldSpec.DataType.STRING || _type == FieldSpec.DataType.BYTES) { Review Comment: What is the value for `BYTES` type? If it is `byte[]`, `toString()` won't work ########## pinot-common/src/main/java/org/apache/pinot/common/request/context/ExpressionContext.java: ########## @@ -31,41 +33,58 @@ */ public class ExpressionContext { public enum Type { - LITERAL, IDENTIFIER, FUNCTION + LITERAL, IDENTIFIER, FUNCTION, } private final Type _type; - private final String _value; + private final String _identifier; private final FunctionContext _function; + // Only set when the _type is LITERAL + private final LiteralContext _literal; - public static ExpressionContext forLiteral(String literal) { - return new ExpressionContext(Type.LITERAL, literal, null); + public static ExpressionContext forLiteralContext(Literal literal){ + return new ExpressionContext(Type.LITERAL, null, null, new LiteralContext(literal)); + } + + public static ExpressionContext forLiteralContext(FieldSpec.DataType type, Object val){ + return new ExpressionContext(Type.LITERAL, null, null, new LiteralContext(type, val)); } public static ExpressionContext forIdentifier(String identifier) { - return new ExpressionContext(Type.IDENTIFIER, identifier, null); + return new ExpressionContext(Type.IDENTIFIER, identifier, null, null); } public static ExpressionContext forFunction(FunctionContext function) { - return new ExpressionContext(Type.FUNCTION, null, function); + return new ExpressionContext(Type.FUNCTION, null, function, null); } - private ExpressionContext(Type type, String value, FunctionContext function) { + private ExpressionContext(Type type, String value, FunctionContext function, LiteralContext literal) { Review Comment: ```suggestion private ExpressionContext(Type type, String identifier, FunctionContext function, LiteralContext literal) { ``` ########## pinot-common/src/main/java/org/apache/pinot/common/request/context/ExpressionContext.java: ########## @@ -31,41 +33,58 @@ */ public class ExpressionContext { public enum Type { - LITERAL, IDENTIFIER, FUNCTION + LITERAL, IDENTIFIER, FUNCTION, } private final Type _type; - private final String _value; + private final String _identifier; private final FunctionContext _function; + // Only set when the _type is LITERAL + private final LiteralContext _literal; - public static ExpressionContext forLiteral(String literal) { - return new ExpressionContext(Type.LITERAL, literal, null); + public static ExpressionContext forLiteralContext(Literal literal){ Review Comment: (format) Please reformat the changes -- This is an automated message from the Apache Git Service. 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