| /* |
| * 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: Seq[String] = functionNames.filter { fn => |
| fn.matches("""^[a-zA-Z_]\w*$""") |
| } |
| val parser: GriffinDslParser = 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}", e) |
| Nil |
| } |
| } |
| |
| } |