java.lang.Object
- org.ptolemy.fmi.FMIModelDescription

```
public class FMIModelDescription
extends java.lang.Object
```
An object that represents the fmiModelDescription element of a modelDescription.xml file contained within a Functional Mock-up Interface (.fmu) file.
A Functional Mock-up Unit file is a .fmu file in zip format that contains a .xml file named "modelDescription.xml". This class is a representation of the elements of that file.

FMI documentation may be found at http://www.modelisar.com/fmi.html.

Since:

Ptolemy II 10.0

Version:

$Id$

Author:

Christopher Brooks, Thierry S. Nouidui

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Red (cxh)

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class FMIModelDescription.ContinuousState
A data structure representing a continuous state of the FMU.

Field Summary

Fields
Modifier and Type	Field	Description
`boolean`	`canGetAndSetFMUstate`	For FMI 2.0 and greater, the XML file may specify that the FMU supports getting and setting its state.
`boolean`	`canProvideMaxStepSize`	For the IBM/UCB proposed extension to FMI 2.0, there is a capability flag canProvideMaxStepSize that indicates that the FMU implements the procedure fmiGetMaxStepSize().
`java.util.List<FMI20ContinuousStateDerivative>`	`continuousStateDerivatives`	The list of state derivatives.
`java.util.List<java.lang.String>`	`continuousStateNames`	The list of continuous states names.
`java.util.List<FMIModelDescription.ContinuousState>`	`continuousStates`	The list of continuous states.
`FMICapabilities`	`cosimulationCapabilities`	The capabilities for co-simulation.
`java.util.List<java.io.File>`	`files`	The list of files that were extracted from the .fmu file.
`java.lang.String`	`fmiVersion`	The fmiVersion, typically the value of the fmiVersion attribute from a .fmu file.
`java.lang.String`	`fmuResourceLocation`	The absolute path to the resources directory.
`java.lang.String`	`guid`	The FMI guid, typically the value of the guid attribute from a .fmu file.
`boolean`	`handleIntegerTime`	For the IBM/UCB proposed extension to FMI 2.0, there is a capability flag handleIntegerTime that indicates that the time inside the FMU is represented with an integer m (precision) and an integer p (a counter) representing time as multiples of m.
`boolean`	`modelExchange`	If true, then the FMU is intended for model exchange, not co-simulation.
`FMICapabilities`	`modelExchangeCapabilities`	The capabilities for model exchange.
`java.lang.String`	`modelIdentifier`	The FMI modelIdentifier, typically the value of the modelIdentifier attribute from a .fmu file.
`java.lang.String`	`modelName`	The FMI modelName, typically the value of the modelName attribute from a .fmu file.
`java.util.List<FMIScalarVariable>`	`modelVariables`	The list of ScalarVariable elements.
`java.util.List<java.lang.String>`	`modelVariablesNames`	The list of ScalarVariable elements name.
`int`	`numberOfContinuousStates`	Number of continuous states.
`int`	`numberOfEventIndicators`	Number of event indicators.
`java.util.List<FMI20Output>`	`outputs`	The list of output variables.
`java.lang.Integer`	`precision`	For the IBM/UCB proposed extension to FMI 2.0, there is a capability flag handleIntegerTime that indicates that the time inside the FMU is represented with an integer m (precision) and an integer p (a counter) representing time as multiples of m.
`boolean`	`providesDirectionalDerivative`	For FMI 2.0 and greater, the XML file may specify that the FMU supports providing directional derivatives state.
`java.util.Map<java.lang.String,java.lang.String>`	`typeDefinitions`	A map from TypeDefinition type name declarations to the defined type name.

Constructor Summary

Constructors
Constructor Description

FMIModelDescription()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addDefaultInputDependencies()`	Add direct dependency to each output variables from all input variables.
`void`	`createStateVector()`	Create the state vector.
`void`	`dispose()`	Unload the native library and free up any Java references to memory allocated by the allocate memory callback.
`static java.lang.String`	`fmiStatusDescription(int fmiStatus)`	Return a string describing the specified fmiStatus.
`com.sun.jna.Function`	`getFmiFunction(java.lang.String functionName)`	Get the native function from the native library.
`FMULibrary.FMUAllocateMemory`	`getFMUAllocateMemory()`	Return a class that provides a callback function that allocates memory, but retains a reference so that the memory does not get gc'd.
`com.sun.jna.NativeLibrary`	`getNativeLibrary()`	Get the native library of C functions for the current platform.
`java.lang.String`	`getNativeLibraryPath()`	Return the canonical native library path.
`void`	`parseDependenciese(org.w3c.dom.Node node)`	Parse the ModelStructure to catch the I/O direct dependencies.
`java.lang.String`	`toString()`	Return the value of the FMI modelName element.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - canGetAndSetFMUstate
```
public boolean canGetAndSetFMUstate
```
    For FMI 2.0 and greater, the XML file may specify that the FMU supports getting and setting its state. This defaults to false if not present in the XML file.
  - canProvideMaxStepSize
```
public boolean canProvideMaxStepSize
```
    For the IBM/UCB proposed extension to FMI 2.0, there is a capability flag canProvideMaxStepSize that indicates that the FMU implements the procedure fmiGetMaxStepSize().
  - handleIntegerTime
```
public boolean handleIntegerTime
```
    For the IBM/UCB proposed extension to FMI 2.0, there is a capability flag handleIntegerTime that indicates that the time inside the FMU is represented with an integer m (precision) and an integer p (a counter) representing time as multiples of m.
  - precision
```
public java.lang.Integer precision
```
    For the IBM/UCB proposed extension to FMI 2.0, there is a capability flag handleIntegerTime that indicates that the time inside the FMU is represented with an integer m (precision) and an integer p (a counter) representing time as multiples of m. This field represent the precision m used to represent Time from the FMU.
  - providesDirectionalDerivative
```
public boolean providesDirectionalDerivative
```
    For FMI 2.0 and greater, the XML file may specify that the FMU supports providing directional derivatives state. This defaults to false if not present in the XML file.
  - files
```
public java.util.List<java.io.File> files
```
    The list of files that were extracted from the .fmu file.
  - fmiVersion
```
public java.lang.String fmiVersion
```
    The fmiVersion, typically the value of the fmiVersion attribute from a .fmu file. The fmiVersion field is set to 1.0 for FMI 1.0.
  - fmuResourceLocation
```
public java.lang.String fmuResourceLocation
```
    The absolute path to the resources directory. In FMI-2.0, the fmiInstantiateXXX() method has a fmuResourceLocation parameter. This value of this parameter typically starts with "file://" but may start with "http://", "https://" or "ftp://".
  - guid
```
public java.lang.String guid
```
    The FMI guid, typically the value of the guid attribute from a .fmu file. The value of guid in the modelDescription.xml file must match the guid in the shared library.
  - modelExchange
```
public boolean modelExchange
```
    If true, then the FMU is intended for model exchange, not co-simulation.
  - modelIdentifier
```
public java.lang.String modelIdentifier
```
    The FMI modelIdentifier, typically the value of the modelIdentifier attribute from a .fmu file. The modelIdentifier is the basename for the shared library.
  - modelName
```
public java.lang.String modelName
```
    The FMI modelName, typically the value of the modelName attribute from a .fmu file. The modelName may have spaces in it.
  - modelVariables
```
public java.util.List<FMIScalarVariable> modelVariables
```
    The list of ScalarVariable elements.
  - modelVariablesNames
```
public java.util.List<java.lang.String> modelVariablesNames
```
    The list of ScalarVariable elements name.
  - continuousStates
```
public java.util.List<FMIModelDescription.ContinuousState> continuousStates
```
    The list of continuous states.
  - continuousStateNames
```
public java.util.List<java.lang.String> continuousStateNames
```
    The list of continuous states names.
  - continuousStateDerivatives
```
public java.util.List<FMI20ContinuousStateDerivative> continuousStateDerivatives
```
    The list of state derivatives.
  - outputs
```
public java.util.List<FMI20Output> outputs
```
    The list of output variables.
  - numberOfContinuousStates
```
public int numberOfContinuousStates
```
    Number of continuous states.
  - numberOfEventIndicators
```
public int numberOfEventIndicators
```
    Number of event indicators.
  - typeDefinitions
```
public java.util.Map<java.lang.String,java.lang.String> typeDefinitions
```
    A map from TypeDefinition type name declarations to the defined type name.
  - cosimulationCapabilities
```
public FMICapabilities cosimulationCapabilities
```
    The capabilities for co-simulation. FMIModelDescription has a field for Cosimulation capabilities and a field for Model Exchange capabilities. We need both because JModelica fmus define both capabilities. We use a baseclass here so that the FMIModelDescription class does not change as we support other capabilities.
  - modelExchangeCapabilities
```
public FMICapabilities modelExchangeCapabilities
```
    The capabilities for model exchange.
- Constructor Detail
  - FMIModelDescription
```
public FMIModelDescription()
```
- Method Detail
  - createStateVector
```
public void createStateVector()
                       throws java.io.IOException
```
    Create the state vector. This should only be called on fmis with a fmiVersion greater than 1.5.
    
    Throws:
    
    java.io.IOException - If the size of the continuousStateDerivatives is not equal to the number of reals.
  - dispose
```
public void dispose()
```
    Unload the native library and free up any Java references to memory allocated by the allocate memory callback.
  - fmiStatusDescription
```
public static java.lang.String fmiStatusDescription(int fmiStatus)
```
    Return a string describing the specified fmiStatus.
    
    Parameters:
    
    fmiStatus - The status returned by an FMI procedure.
    
    Returns:
    
    a String describing the status.
  - getFMUAllocateMemory
```
public FMULibrary.FMUAllocateMemory getFMUAllocateMemory()
```
    Return a class that provides a callback function that allocates memory, but retains a reference so that the memory does not get gc'd.
    
    Returns:
    
    The class that provides a callback function that allocates memory.
  - getNativeLibraryPath
```
public java.lang.String getNativeLibraryPath()
                                      throws java.io.IOException
```
    Return the canonical native library path. If the shared library names by FMUFile.fmuSharedLibrary(FMIModelDescription) exists, then it is returned. If it does not exist, then FMUBuilder.build(File) is invoked, which may build the shared library.
    
    Returns:
    
    The canonical native library path.
    
    Throws:
    
    java.io.IOException - If the FMU file does not contain binaries for the current platform.
  - getFmiFunction
```
public com.sun.jna.Function getFmiFunction(java.lang.String functionName)
                                    throws java.lang.UnsatisfiedLinkError,
                                           java.io.IOException
```
    Get the native function from the native library.
    A FMI 1.0 FMU will have functions like MyModel_fmiGetReal().
    
    A FMI 2.0 FMU that is shipped with C source code or with a static library, will have functions like MyModel_fmiGetReal().
    
    However, a FMI 2.0 FMU that is shipped with a shared library (and without C source code), will have functions like fmiGetReal().
    
    This method tries both formats. The leading modelIdentifier is tried first because we believe that FMUs should be shipped with source code. If the function name with the leading modelIdentifier is not found, then just the functionName is tried.
    
    Parameters:
    
    functionName - The name of the function, without a leading underscore.
    
    Returns:
    
    The function.
    
    Throws:
    
    java.lang.UnsatisfiedLinkError - If the function is not found using either format.
    
    java.io.IOException - If the native library cannot be found.
  - getNativeLibrary
```
public com.sun.jna.NativeLibrary getNativeLibrary()
                                           throws java.io.IOException
```
    Get the native library of C functions for the current platform. A side effect is that if the native library does not exist, then FMUBuilder.build(File) is invoked, which may build the shared library.
    
    Returns:
    
    The library of functions for the current platform.
    
    Throws:
    
    java.io.IOException - If the FMU file does not contain binaries for the current platform.
  - toString
```
public java.lang.String toString()
```
    Return the value of the FMI modelName element.
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    The model name.
  - parseDependenciese
```
public void parseDependenciese(org.w3c.dom.Node node)
```
    Parse the ModelStructure to catch the I/O direct dependencies.
    
    Parameters:
    
    node - The node to be parsed.
  - addDefaultInputDependencies
```
public void addDefaultInputDependencies()
```
    Add direct dependency to each output variables from all input variables.

Class FMIModelDescription

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

canGetAndSetFMUstate

canProvideMaxStepSize

handleIntegerTime

precision

providesDirectionalDerivative

files

fmiVersion

fmuResourceLocation

guid

modelExchange

modelIdentifier

modelName

modelVariables

modelVariablesNames

continuousStates

continuousStateNames

continuousStateDerivatives

outputs

numberOfContinuousStates

numberOfEventIndicators

typeDefinitions

cosimulationCapabilities

modelExchangeCapabilities

Constructor Detail

FMIModelDescription

Method Detail

createStateVector

dispose

fmiStatusDescription

getFMUAllocateMemory

getNativeLibraryPath

getFmiFunction

getNativeLibrary

toString

parseDependenciese

addDefaultInputDependencies