| /* |
| 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.griffin.measure.step.builder |
| |
| import org.apache.griffin.measure.configuration.dqdefinition.RuleParam |
| import org.apache.griffin.measure.context.DQContext |
| import org.apache.griffin.measure.step.DQStep |
| import org.apache.griffin.measure.step.builder.dsl.parser.GriffinDslParser |
| import org.apache.griffin.measure.step.builder.dsl.transform.Expr2DQSteps |
| |
| |
| case class GriffinDslDQStepBuilder(dataSourceNames: Seq[String], |
| functionNames: Seq[String] |
| ) extends RuleParamStepBuilder { |
| |
| val filteredFunctionNames = functionNames.filter { fn => |
| fn.matches("""^[a-zA-Z_]\w*$""") |
| } |
| val parser = GriffinDslParser(dataSourceNames, filteredFunctionNames) |
| |
| def buildSteps(context: DQContext, ruleParam: RuleParam): Seq[DQStep] = { |
| val name = getStepName(ruleParam.getOutDfName()) |
| val rule = ruleParam.getRule |
| val dqType = ruleParam.getDqType |
| try { |
| val result = parser.parseRule(rule, dqType) |
| if (result.successful) { |
| val expr = result.get |
| val expr2DQSteps = Expr2DQSteps(context, expr, ruleParam.replaceOutDfName(name)) |
| expr2DQSteps.getDQSteps() |
| } else { |
| warn(s"parse rule [ ${rule} ] fails: \n${result}") |
| Nil |
| } |
| } catch { |
| case e: Throwable => |
| error(s"generate rule plan ${name} fails: ${e.getMessage}") |
| Nil |
| } |
| } |
| |
| } |