de.iip_ecosphere.platform.support.iip_aas

Class AasUtils

java.lang.Object

de.iip_ecosphere.platform.support.iip_aas.AasUtils

public class AasUtils
extends Object

Helper functions for active AAS.

Author:

Holger Eichelberger, SSE

Field Summary

Fields

Modifier and Type	Field and Description
static URI	EMPTY_URI An empty URI for readUri(Object[], int, URI).

Constructor Summary

Constructors

Constructor and Description
AasUtils()

Method Summary

Modifier and Type	Method and Description
static String	fixId(String id) Modifies a given id so that it fits the needs of the implementation.
static int	readInt(Object[] args, int index, int dflt) Reads the index argument from args as int.
static Map<String,String>	readMap(Object[] args, int index, Map<String,String> dflt) Reads the index argument from args as map of strings.
static String	readString(Object[] args) Reads the first argument from args as String with default value empty.
static String	readString(Object[] args, int index) Reads the index argument from args as String with default value empty.
static String	readString(Object[] args, int index, String dflt) Reads the index argument from args as String.
static URI	readUri(Object[] args, int index, URI dflt) Reads the index argument from args as URI.
static URI	readUriEx(Object[] args, int index, URI dflt) Reads the index argument from args as URI.
static String	writeMap(Map<String,String> map) Writes a map to JSON.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_URI

public static final URI EMPTY_URI

An empty URI for readUri(Object[], int, URI).

Constructor Detail

AasUtils

public AasUtils()

Method Detail

readString

public static String readString(Object[] args)

Reads the first argument from args as String with default value empty.

Parameters:

args - the array to take the value from

Returns:

the value

readString

public static String readString(Object[] args,
                                int index)

Reads the index argument from args as String with default value empty.

Parameters:

args - the array to take the value from

index - the 0-based index into args

Returns:

the value

readString

public static String readString(Object[] args,
                                int index,
                                String dflt)

Reads the index argument from args as String.

Parameters:

args - the array to take the value from

index - the 0-based index into args

dflt - default value if the index is wrong, there is no value/null ...

Returns:

the value

readInt

public static int readInt(Object[] args,
                          int index,
                          int dflt)

Reads the index argument from args as int.

Parameters:

args - the array to take the value from

index - the 0-based index into args

dflt - default value if the index is wrong, there is no value/null, the value is no int...

Returns:

the value

readUriEx

public static URI readUriEx(Object[] args,
                            int index,
                            URI dflt)
                     throws URISyntaxException

Reads the index argument from args as URI.

Parameters:

args - the array to take the value from

index - the 0-based index into args

dflt - default value if the index is wrong, there is no value/null

Returns:

the value

Throws:

URISyntaxException - if the value cannot be turned into an URI...

readUri

public static URI readUri(Object[] args,
                          int index,
                          URI dflt)

Reads the index argument from args as URI.

Parameters:

args - the array to take the value from

index - the 0-based index into args

dflt - default value if the index is wrong, there is no value/null, the value cannot be turned into an URI...

Returns:

the value

fixId

public static String fixId(String id)

Modifies a given id so that it fits the needs of the implementation. Uses AasFactory.fixId(String).

Parameters:

id - the id

Returns:

the fixed id

readMap

public static Map<String,String> readMap(Object[] args,
                                         int index,
                                         Map<String,String> dflt)

Reads the index argument from args as map of strings.

Parameters:

args - the array to take the value from

index - the 0-based index into args

dflt - default value if the index is wrong, there is no value/null ...

Returns:

the map

writeMap

public static String writeMap(Map<String,String> map)

Writes a map to JSON.

Parameters:

map - the map

Returns:

the JSON representation