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- dumpToString to compiled plans - support for map litterals
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143
...3/src/main/scala/org/neo4j/cypher/internal/compiler/v2_3/executionplan/formatOutput.scala
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,143 @@ | ||
| /* | ||
| * Copyright (c) 2002-2015 "Neo Technology," | ||
| * Network Engine for Objects in Lund AB [http://neotechnology.com] | ||
| * | ||
| * This file is part of Neo4j. | ||
| * | ||
| * Neo4j is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
| package org.neo4j.cypher.internal.compiler.v2_3.executionplan | ||
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| import java.io.PrintWriter | ||
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| import org.neo4j.cypher.internal.compiler.v2_3.InternalQueryStatistics | ||
| import org.neo4j.cypher.internal.compiler.v2_3.commands.values.KeyToken | ||
| import org.neo4j.cypher.internal.compiler.v2_3.helpers.IsCollection | ||
| import org.neo4j.graphdb.{Node, PropertyContainer, Relationship} | ||
| import org.neo4j.kernel.api.ReadOperations | ||
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| import scala.collection.Map | ||
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| /** | ||
| * Creates formatted tabular output. | ||
| */ | ||
| object formatOutput extends ((ReadOperations, PrintWriter, List[String], Seq[Map[String, Any]], InternalQueryStatistics) => Unit) { | ||
| import scala.collection.JavaConverters._ | ||
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| def apply(readOperations: ReadOperations, writer: PrintWriter, columns: List[String], | ||
| result: Seq[Map[String, Any]], queryStatistics: InternalQueryStatistics) { | ||
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| def props(x: PropertyContainer): String = { | ||
| val (properties, propFcn, id) = x match { | ||
| case n: Node => (readOperations.nodeGetAllProperties(n.getId).asScala.map(_.propertyKeyId()), readOperations.nodeGetProperty _, n.getId ) | ||
| case r: Relationship => (readOperations.relationshipGetAllProperties(r.getId).asScala.map(_.propertyKeyId()), readOperations.relationshipGetProperty _, r.getId) | ||
| } | ||
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| val keyValStrings = properties. | ||
| map(pkId => readOperations.propertyKeyGetName(pkId) + ":" + text(propFcn(id, pkId).value(null))) | ||
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| keyValStrings.mkString("{", ",", "}") | ||
| } | ||
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| def text(a: Any): String = a match { | ||
| case x: Node => x.toString + props(x) | ||
| case x: Relationship => ":" + x.getType.name() + "[" + x.getId + "]" + props(x) | ||
| case x if x.isInstanceOf[Map[_, _]] => makeString(x.asInstanceOf[Map[String, Any]]) | ||
| case x if x.isInstanceOf[java.util.Map[_, _]] => makeString(x.asInstanceOf[java.util.Map[String, Any]].asScala) | ||
| case IsCollection(coll) => coll.map(elem => text(elem)).mkString("[", ",", "]") | ||
| case x: String => "\"" + x + "\"" | ||
| case v: KeyToken => v.name | ||
| case Some(x) => x.toString | ||
| case null => "<null>" | ||
| case x => x.toString | ||
| } | ||
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| def textWithType(x: Any) = s"${text(x)} (${x.getClass.getSimpleName})" | ||
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| def makeString(m: Map[String, Any]) = m.map { | ||
| case (k, v) => k + " -> " + text(v) | ||
| }.mkString("{", ", ", "}") | ||
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| def makeSize(txt: String, wantedSize: Int): String = { | ||
| val actualSize = txt.length() | ||
| if (actualSize > wantedSize) { | ||
| txt.slice(0, wantedSize) | ||
| } else if (actualSize < wantedSize) { | ||
| txt + repeat(" ", wantedSize - actualSize) | ||
| } else txt | ||
| } | ||
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| def repeat(x: String, size: Int): String = (1 to size).map((i) => x).mkString | ||
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| def createString(columnSizes: Map[String, Int], m: Map[String, Any]): String = { | ||
| columns.map(c => { | ||
| val length = columnSizes.get(c).get | ||
| val txt = text(m.get(c).get) | ||
| val value = makeSize(txt, length) | ||
| value | ||
| }).mkString("| ", " | ", " |") | ||
| } | ||
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| def calculateColumnSizes(result: Seq[Map[String, Any]]): Map[String, Int] = { | ||
| val columnSizes = new scala.collection.mutable.OpenHashMap[String, Int] ++ columns.map(name => name -> name.length) | ||
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| result.foreach((m) => { | ||
| m.foreach((kv) => { | ||
| val length = text(kv._2).length | ||
| if (!columnSizes.contains(kv._1) || columnSizes.get(kv._1).get < length) { | ||
| columnSizes.put(kv._1, length) | ||
| } | ||
| }) | ||
| }) | ||
| columnSizes.toMap | ||
| } | ||
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| if (columns.nonEmpty) { | ||
| val headers = columns.map((c) => Map[String, Any](c -> Some(c))).reduceLeft(_ ++ _) | ||
| val columnSizes = calculateColumnSizes(result) | ||
| val headerLine = createString(columnSizes, headers) | ||
| val lineWidth = headerLine.length - 2 | ||
| val --- = "+" + repeat("-", lineWidth) + "+" | ||
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| val row = if (result.size > 1) "rows" else "row" | ||
| val footer = "%d %s".format(result.size, row) | ||
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| writer.println(---) | ||
| writer.println(headerLine) | ||
| writer.println(---) | ||
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| result.foreach(resultLine => writer.println(createString(columnSizes, resultLine))) | ||
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| writer.println(---) | ||
| writer.println(footer) | ||
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| if (queryStatistics.containsUpdates) { | ||
| writer.print(queryStatistics.toString) | ||
| } | ||
| } else { | ||
| if (queryStatistics.containsUpdates) { | ||
| writer.println("+-------------------+") | ||
| writer.println("| No data returned. |") | ||
| writer.println("+-------------------+") | ||
| writer.print(queryStatistics.toString) | ||
| } else { | ||
| writer.println("+--------------------------------------------+") | ||
| writer.println("| No data returned, and nothing was changed. |") | ||
| writer.println("+--------------------------------------------+") | ||
| } | ||
| } | ||
| } | ||
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| } |
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