Difference between revisions of "SimpleGraph-Excel"

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=SimpleGraphModule=
 +
 
{{SimpleGraphModule
 
{{SimpleGraphModule
 
|name=Excel
 
|name=Excel
 +
|logo=File:Microsoft Excel 2013 logo.svg
 +
|modulename=excel
 +
|systemname=ExcelSystem
 +
|url=https://en.wikipedia.org/wiki/Microsoft_Excel
 +
|apiname=Apache POI XSSF/HSSF
 +
|apiurl=https://poi.apache.org/components/spreadsheet/quick-guide.html
 
|documentation=makes Microsoft Excel workbooks accessible via the Apache POI API
 
|documentation=makes Microsoft Excel workbooks accessible via the Apache POI API
 
|storemode=property
 
|storemode=property
 
|viewmode=hidden
 
|viewmode=hidden
 
}}
 
}}
 +
 +
= Mental Model =
 +
== Mapping rules ==
 +
# Each Vertex type (by label) is converted to an Excel sheet
 +
# Each Edge type (by label) is converted to an Excel sheet
 +
# Each vertex is converted to a row
 +
# Each vertex property is converted to a cell
 +
# Each edge is converted to a row
 +
# Each edge property is converted to a cell
 +
# The header row for Vertices has a column for each property key
 +
# The header for for Edges has a column for each property key + an in and and out column
 +
# The in and out header columns for edges have the label of the corresponding vertex in parentheses
 +
== UML diagram ==
 +
<uml>
 +
 
 +
  hide circle
 +
  package Excel {
 +
  class Workbook {
 +
    name
 +
  }
 +
  class Sheet {
 +
    name
 +
  }
 +
  class Row {
 +
    rownumber
 +
  }
 +
  class Cell {
 +
    columnnumber
 +
    value
 +
  }
 +
  Workbook "1" -> "n" Sheet
 +
  Sheet "1" -> "title 1" Row
 +
  Sheet "1" -> "n" Row
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  Row "1" -> "n" Cell
 +
}
 +
package TinkerPop {
 +
  class Property {
 +
    name
 +
    value
 +
  }
 +
  class Vertex {
 +
    id
 +
    label
 +
  }
 +
  class Edge {
 +
    id
 +
    label
 +
  }
 +
  Edge -> "1 in" Vertex
 +
  Edge -> "1 out" Vertex
 +
  Vertex -> "n properties" Property
 +
  Edge -> "n properties" Property
 +
  Edges -> "n edges" Edge
 +
  Vertices -> "n Vertices" Vertex
 +
}
 +
Cell - Property
 +
Edge - Sheet
 +
Vertex - Sheet
 +
</uml>
 +
 +
= Examples =
 +
== Modern ==
 +
<uml>
 +
  hide circle
 +
  package Modern {
 +
  note top of person: 4
 +
  class person { 
 +
    name
 +
    age
 +
  }
 +
  note top of software: 2
 +
  class software { 
 +
    name
 +
    lang
 +
  }
 +
  }
 +
 +
  person --> person: knows
 +
  note on link: 2
 +
 +
  person --> software: created
 +
  note on link: 4
 +
</uml>
 +
[[File:modern.xlsx]]
 +
 +
== AirRoutes ==
 +
The UML diagram and excel table is not fully consistent with the graph. The graph can have contains edges between airport and country.
 +
 +
<uml>
 +
  hide circle
 +
  package AirRoutes {
 +
  note top of airport: 3374
 +
  class airport { 
 +
    code
 +
    longest
 +
    city
 +
    elev
 +
    icao
 +
    lon
 +
    type
 +
    region
 +
    runways
 +
    lat
 +
    desc
 +
    country
 +
  }
 +
  note top of version: 1
 +
  class version { 
 +
    code
 +
    type
 +
    desc
 +
  }
 +
  note top of country: 237
 +
  class country { 
 +
    desc
 +
    code
 +
    type
 +
  }
 +
  note top of continent: 7
 +
  class continent { 
 +
    code
 +
    type
 +
    desc
 +
  }
 +
  }
 +
 +
  airport --> airport: route
 +
  note on link: 43400
 +
 +
  continent --> airport: contains
 +
  note on link: 6748
 +
</uml>
 +
[[File:air-routes.xlsx]]
 +
<source lang='java'>
 +
@Test
 +
  public void testCreateExcelAirRoutes() throws Exception {
 +
    ExcelSystem es = new ExcelSystem();
 +
    Graph graph = TestTinkerPop3.getAirRoutes();
 +
    GraphTraversalSource g = graph.traversal();
 +
    // es.setDebug(true);
 +
    Workbook wb = es.createWorkBook(g);
 +
    assertEquals(6, wb.getNumberOfSheets());
 +
    es.save(wb, testAirRouteFileName);
 +
}
 +
</source>
 +
 +
== Railway ==
 +
<uml>
 +
hide circle
 +
package Railway {
 +
  class City {
 +
    name
 +
    lat
 +
    lon
 +
  }
 +
 +
  class Station {
 +
    name
 +
    lat
 +
    lon
 +
  }
 +
  class Route {
 +
    linenumber
 +
  }
 +
 +
  class Section {
 +
    id
 +
  }
 +
  Station "1" - "city 1" City
 +
  Route "1" - "to 1" City
 +
  Route "1" - "from 1" City
 +
  Route "1" - "sections n" Section
 +
  Station "1" - "sections n" Section
 +
}
 +
</uml>
 +
 +
= Links =
 +
* https://stackoverflow.com/questions/tagged/poi
 +
* https://stackoverflow.com/questions/tagged/poi-hssf
 +
* https://stackoverflow.com/questions/tagged/apache-poi
 +
[[Category:frontend]]

Latest revision as of 09:06, 30 October 2018

SimpleGraphModule

Microsoft Excel 2013-2019 logo.svg

SimpleGraph Excel module

The SimpleGraph Excel module makes Microsoft Excel workbooks accessible via the Apache POI API see Apache POI XSSF/HSSF.

Sources

Mental Model

Mapping rules

  1. Each Vertex type (by label) is converted to an Excel sheet
  2. Each Edge type (by label) is converted to an Excel sheet
  3. Each vertex is converted to a row
  4. Each vertex property is converted to a cell
  5. Each edge is converted to a row
  6. Each edge property is converted to a cell
  7. The header row for Vertices has a column for each property key
  8. The header for for Edges has a column for each property key + an in and and out column
  9. The in and out header columns for edges have the label of the corresponding vertex in parentheses

UML diagram

Examples

Modern

File:Modern.xlsx

AirRoutes

The UML diagram and excel table is not fully consistent with the graph. The graph can have contains edges between airport and country.

File:Air-routes.xlsx 

@Test
  public void testCreateExcelAirRoutes() throws Exception {
    ExcelSystem es = new ExcelSystem();
    Graph graph = TestTinkerPop3.getAirRoutes();
    GraphTraversalSource g = graph.traversal();
    // es.setDebug(true);
    Workbook wb = es.createWorkBook(g);
    assertEquals(6, wb.getNumberOfSheets());
    es.save(wb, testAirRouteFileName);
}

Railway

Links

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