Package de.iip_ecosphere.platform.configuration

Class DrawflowGraphFormat

java.lang.Object

de.iip_ecosphere.platform.configuration.DrawflowGraphFormat

All Implemented Interfaces:

GraphFormat

public class DrawflowGraphFormat
extends Object
implements GraphFormat

Writes a graph in the "drawflow" format.

Author:

Holger Eichelberger, SSE

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	DrawflowGraphFormat.GraphReader	Implements a graph reader.
private static class	DrawflowGraphFormat.GraphWriter	Instance to map and write a graph.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NAME

Constructor Summary

Constructors

Constructor	Description
DrawflowGraphFormat()

Method Summary

Modifier and Type	Method	Description
IvmlGraphMapper.IvmlGraph	fromString(String graph, GraphFactory factory, DecisionVariableProvider varProvider)	Parses graph from this format into an IVML graph structure.
String	getFormatKind()	Returns the kind of format produced.
private static int	getInteger(org.json.simple.JSONObject object, String field, int dflt)	Obtains an int from object.
private static <T> T	getJson(org.json.simple.JSONObject object, String field, Class<T> cls, Supplier<T> dflt, Function<Object,T> converter)	Obtains a JSON object from object.
private static org.json.simple.JSONArray	getJsonArray(org.json.simple.JSONObject object, String field)	Obtains a JSON array from object.
private static org.json.simple.JSONObject	getJsonObject(org.json.simple.JSONObject object, String field)	Obtains a JSON object from object.
String	getName()	Returns the name to address/access this format.
private static String	getString(org.json.simple.JSONObject object, String field, String dflt)	Obtains a string from object.
String	toString(IvmlGraphMapper.IvmlGraph graph)	Turns graph into this format.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

Constructor Details

DrawflowGraphFormat

public DrawflowGraphFormat()

Method Details

getName

public String getName()

Description copied from interface: GraphFormat

Returns the name to address/access this format.

Specified by:

getName in interface GraphFormat

Returns:

the unique name

getFormatKind

public String getFormatKind()

Description copied from interface: GraphFormat

Returns the kind of format produced.

Specified by:

getFormatKind in interface GraphFormat

Returns:

the format kind, e.g., XML, JSON, ...

toString

public String toString(IvmlGraphMapper.IvmlGraph graph)
                throws ExecutionException

Description copied from interface: GraphFormat

Turns graph into this format.

Specified by:

toString in interface GraphFormat

Parameters:

graph - the graph, may be null

Returns:

the formatted graph, an empty graph if graph is null

Throws:

ExecutionException - if the translation fails

fromString

public IvmlGraphMapper.IvmlGraph fromString(String graph,
 GraphFactory factory,
 DecisionVariableProvider varProvider)
                                     throws ExecutionException

Description copied from interface: GraphFormat

Parses graph from this format into an IVML graph structure.

Specified by:

fromString in interface GraphFormat

Parameters:

graph - the graph, may be null

factory - a factory to be used to create graph instances

varProvider - the provider allowing to access variables

Returns:

the IVML graph structure, an empty graph if graph is null

Throws:

ExecutionException - if the translation fails

getJson

private static <T> T getJson(org.json.simple.JSONObject object,
 String field,
 Class<T> cls,
 Supplier<T> dflt,
 Function<Object,T> converter)

Obtains a JSON object from object.

Type Parameters:

T - the type to be returned

Parameters:

object - the object to read from

field - the field name to read from within object

cls - the type as class

dflt - the default value if field does not exist

converter - optional converter if the found value is not compliant with cls, may be null

Returns:

returns the JSON object or, if not found, an empty JSON object

getJsonObject

private static org.json.simple.JSONObject getJsonObject(org.json.simple.JSONObject object,
 String field)

Obtains a JSON object from object.

Parameters:

object - the object to read from

field - the field name

Returns:

returns the JSON object or, if not found, an empty JSON object

getJsonArray

private static org.json.simple.JSONArray getJsonArray(org.json.simple.JSONObject object,
 String field)

Obtains a JSON array from object.

Parameters:

object - the object to read from

field - the field name

Returns:

returns the JSON array, or, if not found, an empty JSON array

getString

private static String getString(org.json.simple.JSONObject object,
 String field,
 String dflt)

Obtains a string from object.

Parameters:

object - the object to read from

field - the field name

dflt - the default value

Returns:

returns the string or, if not found, dflt

getInteger

private static int getInteger(org.json.simple.JSONObject object,
 String field,
 int dflt)

Obtains an int from object.

Parameters:

object - the object to read from

field - the field name

dflt - the default value

Returns:

returns the int value or, if not found, dflt