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[mwe2] Enable specification of new Ecore methods in MWE2.
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Signed-off-by: Stéphane Galland <galland@arakhne.org>
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@gallandarakhneorg
gallandarakhneorg committed Nov 12, 2015
1 parent a8f49de commit fc7754b
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Showing 2 changed files with 239 additions and 30 deletions.
35 changes: 35 additions & 0 deletions plugins/io.sarl.lang.mwe2/src/io/sarl/lang/GenerateSARL.mwe2
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Expand Up @@ -112,6 +112,41 @@ Workflow {

// update the created Ecore elements.
fragment = SARLEcoreUpdaterFragment auto-inject {
method = {
containerName = "SarlAgent"
methodName = "isAbstract"
returnType = "boolean"
}
method = {
containerName = "SarlAgent"
methodName = "isStrictFloatingPoint"
returnType = "boolean"
}
method = {
containerName = "SarlBehavior"
methodName = "isAbstract"
returnType = "boolean"
}
method = {
containerName = "SarlBehavior"
methodName = "isStrictFloatingPoint"
returnType = "boolean"
}
method = {
containerName = "SarlEvent"
methodName = "isAbstract"
returnType = "boolean"
}
method = {
containerName = "SarlSkill"
methodName = "isAbstract"
returnType = "boolean"
}
method = {
containerName = "SarlSkill"
methodName = "isStrictFloatingPoint"
returnType = "boolean"
}
}

// generates Java API for the generated EPackages
Expand Down
234 changes: 204 additions & 30 deletions plugins/io.sarl.lang.mwe2/src/io/sarl/lang/ecoregenerator/mwe2/SARLEcoreUpdaterFragment.java
View file
Expand Up @@ -21,11 +21,16 @@

package io.sarl.lang.ecoregenerator.mwe2;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EOperation;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EParameter;
import org.eclipse.emf.ecore.EcoreFactory;
import org.eclipse.emf.ecore.EcorePackage;
import org.eclipse.xpand2.XpandExecutionContext;
Expand All @@ -47,7 +52,41 @@
public class SARLEcoreUpdaterFragment extends DefaultGeneratorFragment {

private static final Logger LOG = Logger.getLogger(SARLEcoreUpdaterFragment.class);

/** Replies the Ecore classifier for the given type.
*
* <p>It must be accessible with {@link EcorePackage#eINSTANCE}.
*
* @param name the name.
* @return the classifier.
*/
protected static EClassifier findType(String name) {
if (!Strings.isEmpty(name)) {
String upperFirst =
name.substring(0, 1).toUpperCase()
+ name.substring(1);
try {
Method method = EcorePackage.class.getMethod("getE" + upperFirst); //$NON-NLS-1$
return (EClassifier) method.invoke(EcorePackage.eINSTANCE);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
return null;
}

private final List<MethodUpdater> methodUpdaters = new ArrayList<>();

/** Register an updater for adding a method into an Ecore.
*
* @param updater - the updater.
*/
public void addMethod(MethodUpdater updater) {
if (updater != null) {
this.methodUpdaters.add(updater);
}
}

@Override
public void generate(Grammar grammar, XpandExecutionContext ctx) {
LOG.info("Updating SARL Ecore Package with additional elements."); //$NON-NLS-1$
Expand Down Expand Up @@ -75,35 +114,14 @@ public void generate(Grammar grammar, XpandExecutionContext ctx) {
*
* @param sarlPackage - the package of SARL elements.
*/
protected static void updateEcorePackage(EPackage sarlPackage) {
addMethodInClass(sarlPackage,
"SarlAgent", //$NON-NLS-1$
"isAbstract", //$NON-NLS-1$
EcorePackage.eINSTANCE.getEBoolean());
addMethodInClass(sarlPackage,
"SarlAgent", //$NON-NLS-1$
"isStrictFloatingPoint", //$NON-NLS-1$
EcorePackage.eINSTANCE.getEBoolean());
addMethodInClass(sarlPackage,
"SarlBehavior", //$NON-NLS-1$
"isAbstract", //$NON-NLS-1$
EcorePackage.eINSTANCE.getEBoolean());
addMethodInClass(sarlPackage,
"SarlBehavior", //$NON-NLS-1$
"isStrictFloatingPoint", //$NON-NLS-1$
EcorePackage.eINSTANCE.getEBoolean());
addMethodInClass(sarlPackage,
"SarlEvent", //$NON-NLS-1$
"isAbstract", //$NON-NLS-1$
EcorePackage.eINSTANCE.getEBoolean());
addMethodInClass(sarlPackage,
"SarlSkill", //$NON-NLS-1$
"isAbstract", //$NON-NLS-1$
EcorePackage.eINSTANCE.getEBoolean());
addMethodInClass(sarlPackage,
"SarlSkill", //$NON-NLS-1$
"isStrictFloatingPoint", //$NON-NLS-1$
EcorePackage.eINSTANCE.getEBoolean());
protected void updateEcorePackage(EPackage sarlPackage) {
for (MethodUpdater updater : this.methodUpdaters) {
addMethodInClass(sarlPackage,
updater.getContainerName(),
updater.getMethodName(),
updater.getReturnType(),
updater.getParameters());
}
}

/** Add a method in the definition of the givne class.
Expand All @@ -112,8 +130,9 @@ protected static void updateEcorePackage(EPackage sarlPackage) {
* @param classname - the name of the class to upgrade.
* @param functionName - the name of the new function.
* @param returnType - the return type.
* @param parameters - the formal parameters.
*/
protected static void addMethodInClass(EPackage epackage, String classname, String functionName, EClassifier returnType) {
protected static void addMethodInClass(EPackage epackage, String classname, String functionName, EClassifier returnType, List<FormalParameter> parameters) {
LOG.info("\tadding " + functionName + " into " + classname); //$NON-NLS-1$ //$NON-NLS-2$
EClassifier eclassifier = epackage.getEClassifier(classname);
if (eclassifier == null || !(eclassifier instanceof EClass)) {
Expand All @@ -125,8 +144,163 @@ protected static void addMethodInClass(EPackage epackage, String classname, Stri
if (returnType != null) {
eoperation.setEType(returnType);
}
for (FormalParameter parameter : parameters) {
EParameter eparameter = EcoreFactory.eINSTANCE.createEParameter();
eparameter.setName(parameter.getName());
eparameter.setEType(parameter.getType());
eoperation.getEParameters().add(eparameter);
}
eclass.getEOperations().add(eoperation);
}

/** Describe the addition of a method in a Ecore container.
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
*/
public static class MethodUpdater {

private String className;

private String methodName;

private String returnType;

private final List<FormalParameter> parameters = new ArrayList<>();

/** Set the name of the container.
*
* @param classname - the name of the container in the EPackage.
*/
public void setContainerName(String classname) {
this.className = classname;
}

/** Replies the name of the container.
*
* @return the name of the container in the EPackage.
*/
public String getContainerName() {
if (Strings.isEmpty(this.className)) {
throw new RuntimeException("no classname specified."); //$NON-NLS-1$
}
return this.className;
}

/** Set the name of the method to add.
*
* @param name - the name of the method.
*/
public void setMethodName(String name) {
this.methodName = name;
}

/** Replies the name of the method to add.
*
* @return the name of the method.
*/
public String getMethodName() {
if (Strings.isEmpty(this.className)) {
throw new RuntimeException("no method name specified."); //$NON-NLS-1$
}
return this.methodName;
}

/** Set the return type.
*
* It must be accessible with {@link EcorePackage#eINSTANCE}.
*
* @param type - the name of the type.
*/
public void setReturnType(String type) {
this.returnType = type;
}

/** Replies the return type.
*
* <p>It must be accessible with {@link EcorePackage#eINSTANCE}.
*
* @return the return type.
*/
public EClassifier getReturnType() {
return findType(this.returnType);
}

/** Add a formal parameter.
*
* @param parameter - the parameter.
*/
public void addParameter(FormalParameter parameter) {
if (parameter != null) {
this.parameters.add(parameter);
}
}

/** Replies the formal parameters.
*
* @return the formal parameters.
*/
public List<FormalParameter> getParameters() {
return this.parameters;
}

}

/** Describe the addition of a formal parameter
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
*/
public static class FormalParameter {

private String name;

private String type;

/** Set the name of the formal parameter.
*
* @param name - the name of the formal parameter.
*/
public void setName(String name) {
this.name = name;
}

/** Replies the name of the formal parameter.
*
* @return the name of the formal parameter.
*/
public String getName() {
if (Strings.isEmpty(this.name)) {
throw new RuntimeException("no parameter name specified."); //$NON-NLS-1$
}
return this.name;
}

/** Set the type.
*
* It must be accessible with {@link EcorePackage#eINSTANCE}.
*
* @param type - the name of the formal parameter.
*/
public void setType(String type) {
this.type = type;
}

/** Replies the type.
*
* <p>It must be accessible with {@link EcorePackage#eINSTANCE}.
*
* @return the return type.
*/
public EClassifier getType() {
return findType(this.type);
}

}

}

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