org.apache.spark.sql.catalyst.expressions.LeafExpression Scala Examples

The following examples show how to use org.apache.spark.sql.catalyst.expressions.LeafExpression. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.
Example 1
Source File: CodegenFallback.scala    From drizzle-spark   with Apache License 2.0 5 votes vote down vote up 
package org.apache.spark.sql.catalyst.expressions.codegen

import org.apache.spark.sql.catalyst.expressions.{Expression, LeafExpression, Nondeterministic}


trait CodegenFallback extends Expression {

  protected def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
    foreach {
      case n: Nondeterministic => n.setInitialValues()
      case _ =>
    }

    // LeafNode does not need `input`
    val input = if (this.isInstanceOf[LeafExpression]) "null" else ctx.INPUT_ROW
    val idx = ctx.references.length
    ctx.references += this
    val objectTerm = ctx.freshName("obj")
    val placeHolder = ctx.registerComment(this.toString)
    if (nullable) {
      ev.copy(code = s"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        boolean ${ev.isNull} = $objectTerm == null;
        ${ctx.javaType(this.dataType)} ${ev.value} = ${ctx.defaultValue(this.dataType)};
        if (!${ev.isNull}) {
          ${ev.value} = (${ctx.boxedType(this.dataType)}) $objectTerm;
        }""")
    } else {
      ev.copy(code = s"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        ${ctx.javaType(this.dataType)} ${ev.value} = (${ctx.boxedType(this.dataType)}) $objectTerm;
        """, isNull = "false")
    }
  }
}
Example 2
Source File: CodegenFallback.scala    From XSQL   with Apache License 2.0 5 votes vote down vote up 
package org.apache.spark.sql.catalyst.expressions.codegen

import org.apache.spark.sql.catalyst.expressions.{Expression, LeafExpression, Nondeterministic}
import org.apache.spark.sql.catalyst.expressions.codegen.Block._


trait CodegenFallback extends Expression {

  protected def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
    // LeafNode does not need `input`
    val input = if (this.isInstanceOf[LeafExpression]) "null" else ctx.INPUT_ROW
    val idx = ctx.references.length
    ctx.references += this
    var childIndex = idx
    this.foreach {
      case n: Nondeterministic =>
        // This might add the current expression twice, but it won't hurt.
        ctx.references += n
        childIndex += 1
        ctx.addPartitionInitializationStatement(
          s"""
             |((Nondeterministic) references[$childIndex])
             |  .initialize(partitionIndex);
          """.stripMargin)
      case _ =>
    }
    val objectTerm = ctx.freshName("obj")
    val placeHolder = ctx.registerComment(this.toString)
    val javaType = CodeGenerator.javaType(this.dataType)
    if (nullable) {
      ev.copy(code = code"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        boolean ${ev.isNull} = $objectTerm == null;
        $javaType ${ev.value} = ${CodeGenerator.defaultValue(this.dataType)};
        if (!${ev.isNull}) {
          ${ev.value} = (${CodeGenerator.boxedType(this.dataType)}) $objectTerm;
        }""")
    } else {
      ev.copy(code = code"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        $javaType ${ev.value} = (${CodeGenerator.boxedType(this.dataType)}) $objectTerm;
        """, isNull = FalseLiteral)
    }
  }
}
Example 3
Source File: CodegenFallback.scala    From sparkoscope   with Apache License 2.0 5 votes vote down vote up 
package org.apache.spark.sql.catalyst.expressions.codegen

import org.apache.spark.sql.catalyst.expressions.{Expression, LeafExpression, Nondeterministic}


trait CodegenFallback extends Expression {

  protected def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
    // LeafNode does not need `input`
    val input = if (this.isInstanceOf[LeafExpression]) "null" else ctx.INPUT_ROW
    val idx = ctx.references.length
    ctx.references += this
    var childIndex = idx
    this.foreach {
      case n: Nondeterministic =>
        // This might add the current expression twice, but it won't hurt.
        ctx.references += n
        childIndex += 1
        ctx.addPartitionInitializationStatement(
          s"""
             |((Nondeterministic) references[$childIndex])
             |  .initialize(partitionIndex);
          """.stripMargin)
      case _ =>
    }
    val objectTerm = ctx.freshName("obj")
    val placeHolder = ctx.registerComment(this.toString)
    if (nullable) {
      ev.copy(code = s"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        boolean ${ev.isNull} = $objectTerm == null;
        ${ctx.javaType(this.dataType)} ${ev.value} = ${ctx.defaultValue(this.dataType)};
        if (!${ev.isNull}) {
          ${ev.value} = (${ctx.boxedType(this.dataType)}) $objectTerm;
        }""")
    } else {
      ev.copy(code = s"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        ${ctx.javaType(this.dataType)} ${ev.value} = (${ctx.boxedType(this.dataType)}) $objectTerm;
        """, isNull = "false")
    }
  }
}
Example 4
Source File: CodegenFallback.scala    From multi-tenancy-spark   with Apache License 2.0 5 votes vote down vote up 
package org.apache.spark.sql.catalyst.expressions.codegen

import org.apache.spark.sql.catalyst.expressions.{Expression, LeafExpression, Nondeterministic}


trait CodegenFallback extends Expression {

  protected def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
    // LeafNode does not need `input`
    val input = if (this.isInstanceOf[LeafExpression]) "null" else ctx.INPUT_ROW
    val idx = ctx.references.length
    ctx.references += this
    var childIndex = idx
    this.foreach {
      case n: Nondeterministic =>
        // This might add the current expression twice, but it won't hurt.
        ctx.references += n
        childIndex += 1
        ctx.addPartitionInitializationStatement(
          s"""
             |((Nondeterministic) references[$childIndex])
             |  .initialize(partitionIndex);
          """.stripMargin)
      case _ =>
    }
    val objectTerm = ctx.freshName("obj")
    val placeHolder = ctx.registerComment(this.toString)
    if (nullable) {
      ev.copy(code = s"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        boolean ${ev.isNull} = $objectTerm == null;
        ${ctx.javaType(this.dataType)} ${ev.value} = ${ctx.defaultValue(this.dataType)};
        if (!${ev.isNull}) {
          ${ev.value} = (${ctx.boxedType(this.dataType)}) $objectTerm;
        }""")
    } else {
      ev.copy(code = s"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        ${ctx.javaType(this.dataType)} ${ev.value} = (${ctx.boxedType(this.dataType)}) $objectTerm;
        """, isNull = "false")
    }
  }
}
Example 5
Source File: CodegenFallback.scala    From Spark-2.3.1   with Apache License 2.0 5 votes vote down vote up 
package org.apache.spark.sql.catalyst.expressions.codegen

import org.apache.spark.sql.catalyst.expressions.{Expression, LeafExpression, Nondeterministic}


trait CodegenFallback extends Expression {

  protected def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
    // LeafNode does not need `input`
    val input = if (this.isInstanceOf[LeafExpression]) "null" else ctx.INPUT_ROW
    val idx = ctx.references.length
    ctx.references += this
    var childIndex = idx
    this.foreach {
      case n: Nondeterministic =>
        // This might add the current expression twice, but it won't hurt.
        ctx.references += n
        childIndex += 1
        ctx.addPartitionInitializationStatement(
          s"""
             |((Nondeterministic) references[$childIndex])
             |  .initialize(partitionIndex);
          """.stripMargin)
      case _ =>
    }
    val objectTerm = ctx.freshName("obj")
    val placeHolder = ctx.registerComment(this.toString)
    if (nullable) {
      ev.copy(code = s"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        boolean ${ev.isNull} = $objectTerm == null;
        ${ctx.javaType(this.dataType)} ${ev.value} = ${ctx.defaultValue(this.dataType)};
        if (!${ev.isNull}) {
          ${ev.value} = (${ctx.boxedType(this.dataType)}) $objectTerm;
        }""")
    } else {
      ev.copy(code = s"""
        $placeHolder
        Object $objectTerm = ((Expression) references[$idx]).eval($input);
        ${ctx.javaType(this.dataType)} ${ev.value} = (${ctx.boxedType(this.dataType)}) $objectTerm;
        """, isNull = "false")
    }
  }
}