マッピング・スクリプト

/* SAMPLE INPUT
The input personInput includes type of person, name, gender; type can be either author or reviewer.
type::name::gender 
author::Julia Child::F
reviewer::Jane Doe::F
*/

personInput = File.text('people.dat').
    delimiter("::").
    header('type','name','gender')


load(personInput).asVertices{
        labelField "type"
        key "name"
}

/* SAMPLE INPUT
rev_name|recipe_name|timestamp|stars|comment
John Doe|Beef Bourguignon|2014-01-01|5|comment
 */

// CONFIGURATION
// Configures the data loader to create the schema
config create_schema: false, load_new: false

// DATA INPUT
// Define the data input source (a file which can be specified via command line arguments)
// inputfiledir is the directory for the input files that is given in the commandline
// as the "-filename" option
inputfiledir = '/tmp/CSV/'
// This next file is not required if the reviewers already exist
reviewerInput = File.csv(inputfiledir + "reviewers.csv.gz").
    gzip().
    delimiter('|')
// This next file is not required if the recipes already exist
recipeInput = File.csv(inputfiledir +"recipes.csv.gz").
    gzip().
    delimiter('|')
// This is the file that is used to create the edges with edge properties
reviewerRatingInput = File.csv(inputfiledir + "reviewerRatings.csv.gz").
    gzip().
    delimiter('|')

//Specifies what data source to load using which mapper (as defined inline)

load(reviewerInput).asVertices {
    label "reviewer"
    key "name"
}

load(recipeInput).asVertices {
    label "recipe"
    key "name"
}

load(reviewerRatingInput).asEdges {
    label "rated"
    outV "rev_name", {
        label "reviewer"
        key "name"
    }
    inV "recipe_name", {
        label "recipe"
        key "name"
    }
   // properties are automatically added from the file, using the header line as property keys
   // from previously created schema
}

/* SAMPLE INPUT
authorCity: 
author|city|dateStart|dateEnd
Julia Child|Paris|1961-01-01|1967-02-10
*/

// CONFIGURATION
// Configures the data loader to create the schema
config dryrun: false, preparation: true, create_schema: false, load_new: true, schema_output: 'loader_output.txt'

// DATA INPUT
// Define the data input source (a file which can be specified via command line arguments)
// inputfiledir is the directory for the input files
inputfiledir = '/tmp/multiCard/'
authorCityInput = File.csv(inputfiledir + "authorCity.csv").delimiter('|')

//Specifies what data source to load using which mapper (as defined inline)

// Ignore city, dateStart, and dateEnd when creating author vertices
load(authorCityInput).asVertices {
    label "author"
    key "author"
    ignore "city"
    ignore "dateStart"
    ignore "dateEnd"
}

// Ignore author, dateStart, and dateEnd when creating city vertices

load(authorCityInput).asVertices {
    label "city"
    key "city"
    ignore "author"
    ignore "dateStart"
    ignore "dateEnd"
}

// create edges from author -> city and include the edge properties dateStart and dateEnd
load(authorCityInput).asEdges {
    label "livedIn"
    outV "author", {
        label "author"
        key "author"
    }
    inV "city", {
        label "city"
        key "city"
    }
}

* SAMPLE INPUT
reviewer: { "name":"Jon Doe", "gender":"M", "badge" : { "value": "Gold Badge","since" : 2012 } }
 */

// CONFIGURATION
// Configures the data loader to create the schema
config dryrun: false, preparation: true, create_schema: true, load_new: true, load_vertex_threads: 3, schema_output: 'loader_output.txt'

// DATA INPUT
// Define the data input source (a file which can be specified via command line arguments)
// inputfiledir is the directory for the input files
inputfiledir = '/tmp/'
reviewerInput = File.json(inputfiledir + "reviewer.json")

//Specifies what data source to load using which mapper (as defined inline)
  
load(reviewerInput).asVertices{
        label "reviewer"
        key "name"
        vertexProperty "badge", {
                value "value"
        }
}

/* SAMPLE INPUT
reviewer: { "name":"Jane Doe", "gender":"F", 
    "badge" : [{ "value": "Gold Badge", "since" : 2012 },
               { "value": "Silver Badge", "since" : 2005 }] }
 */

// CONFIGURATION
// Configures the data loader to create the schema
config dryrun: false, preparation: true, create_schema: false, load_new: true, load_vertex_threads: 3, schema_output: 'loader_output.txt'

// DATA INPUT
// Define the data input source (a file which can be specified via command line arguments)
// inputfiledir is the directory for the input files
inputfiledir = '/tmp/'
reviewerInput = File.json(inputfiledir + "reviewerMultiMeta.json")

//Specifies what data source to load using which mapper (as defined inline)
  
load(reviewerInput).asVertices{
        label "reviewer"
        key "name"
        vertexProperty "badge", {
                value "value"
        }
}

/* SAMPLE INPUT
name|gender|value|since
Jane Doe|F|Gold Badge|2011
Jane Doe|F|Silver Badge|2005
Jon Doe|M|Gold Badge|2012
 */

// CONFIGURATION
// Configures the data loader to create the schema
config dryrun: false, preparation: true, create_schema: false, load_new: true, load_vertex_threads: 3, schema_output: 'loader_output.txt'

// DATA INPUT
// Define the data input source (a file which can be specified via command line arguments)
// inputfiledir is the directory for the input files
inputfiledir = '/tmp/'
reviewerInput = File.csv(inputfiledir + "reviewerMultiMeta.csv").delimiter('|')

//Specifies what data source to load using which mapper (as defined inline)
reviewerInput = reviewerInput.transform {
  badge1 = [
    "value": it.remove("value"),
    "since": it.remove("since") ]
  it["badge"] = [badge1]
  it
}

load(reviewerInput).asVertices{
	label "reviewer"
	key "name"
	vertexProperty "badge", {
		value "value"
	}
}

//Need to specify a keymap to show how to identify vertices
vertexKeyMap = VertexKeyMap.with('meal','name').with('ingredient','name').with('author','name').with('book','name')
        .with('recipe','name').build();


inputfiledir = '/tmp/Gryo/'
recipeInput = com.datastax.dsegraphloader.api.Graph.file(inputfiledir + 'recipesDSEG.gryo').
    gryo().
    setVertexUniqueKeys(vertexKeyMap)
  
load(recipeInput.vertices()).asVertices {
    labelField "~label"
    key "name"
}

load(recipeInput.edges()).asEdges {
    labelField "~label"
    outV "outV", {
        labelField "~label"
        key "name"
    }
    inV "inV", {
        labelField "~label"
        key "name"
    }
}

//Specifies what data source to load using which mapper (as defined inline)
  
load(recipeInput.vertices()).asVertices {
    labelField "~label"
    key "~id", "id"
}

load(recipeInput.edges()).asEdges {
    labelField "~label"
    outV "outV", {
        labelField "~label"
        key "~id", "id"
    }
    inV "inV", {
        labelField "~label"
        key "~id", "id"
    }
}

//Specifies what data source to load using which mapper (as defined inline)
  
load(recipeInput.vertices()).asVertices {
    labelField "~label"
    key "~id", "id"
}

load(recipeInput.edges()).asEdges {
    labelField "~label"
    outV "outV", {
        labelField "~label"
        key "~id", "id"
    }
    inV "inV", {
        labelField "~label"
        key "~id", "id"
    }
}

//Specifies what data source to load using which mapper (as defined inline)
  
load(recipeInput.vertices()).asVertices {
    labelField "~label"
    key "~id", "id"
}

load(recipeInput.edges()).asEdges {
    labelField "~label"
    outV "outV", {
        labelField "~label"
        key "~id", "id"
    }
    inV "inV", {
        labelField "~label"
        key "~id", "id"
    }
}