aloyszhang commented on code in PR #10950: URL: https://github.com/apache/inlong/pull/10950#discussion_r1735884683
########## inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/CotFunction.java: ########## @@ -0,0 +1,58 @@ +/* + * 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.inlong.sdk.transform.process.function; + +import org.apache.inlong.sdk.transform.decode.SourceData; +import org.apache.inlong.sdk.transform.process.Context; +import org.apache.inlong.sdk.transform.process.operator.OperatorTools; +import org.apache.inlong.sdk.transform.process.parser.ValueParser; + +import net.sf.jsqlparser.expression.Function; + +import java.math.BigDecimal; + +/** + * CotFunction + * description: cot(numeric) -- returns the cotangent of the numeric (in radians) + */ +@TransformFunction(names = {"cot"}) +public class CotFunction implements ValueParser { + + private final ValueParser valueParser; + + public CotFunction(Function expr) { + // 使用OperatorTools构建解析器来处理表达式中的参数 Review Comment: please replace with english ########## inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/CotFunction.java: ########## @@ -0,0 +1,58 @@ +/* + * 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.inlong.sdk.transform.process.function; + +import org.apache.inlong.sdk.transform.decode.SourceData; +import org.apache.inlong.sdk.transform.process.Context; +import org.apache.inlong.sdk.transform.process.operator.OperatorTools; +import org.apache.inlong.sdk.transform.process.parser.ValueParser; + +import net.sf.jsqlparser.expression.Function; + +import java.math.BigDecimal; + +/** + * CotFunction + * description: cot(numeric) -- returns the cotangent of the numeric (in radians) + */ +@TransformFunction(names = {"cot"}) +public class CotFunction implements ValueParser { + + private final ValueParser valueParser; + + public CotFunction(Function expr) { + // 使用OperatorTools构建解析器来处理表达式中的参数 + this.valueParser = OperatorTools.buildParser(expr.getParameters().getExpressions().get(0)); + } + + @Override + public Object parse(SourceData sourceData, int rowIndex, Context context) { + // 解析输入的参数 + Object valueObj = valueParser.parse(sourceData, rowIndex, context); + + // 将解析结果转换为BigDecimal以处理数值计算 + BigDecimal value = OperatorTools.parseBigDecimal(valueObj); + + // 计算tan(x)并取倒数以求得cot(x) Review Comment: ditto -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@inlong.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
