use of com.github.antlrjavaparser.api.expr.NameExpr in project spring-roo by spring-projects.
the class JavaParserUtils method getJavaType.
/**
* Resolves the effective {@link JavaType} a {@link NameExpr} represents.
* <p>
* You should use {@link #getJavaType(CompilationUnitServices, Type, Set)}
* where possible so that type arguments are preserved (a {@link NameExpr}
* does not contain type arguments).
* <p>
* A name expression can be either qualified or unqualified.
* <p>
* If a name expression is qualified and the qualification starts with a
* lowercase letter, that represents the fully-qualified name. If the
* qualification starts with an uppercase letter, the package name is
* prepended to the qualifier.
* <p>
* If a name expression is unqualified, the imports are scanned. If the
* unqualified name expression is found in the imports, that import
* declaration represents the fully-qualified name. If the unqualified name
* expression is not found in the imports, it indicates the name to find is
* either in the same package as the qualified name expression, or the type
* relates to a member of java.lang. If part of java.lang, the fully
* qualified name is treated as part of java.lang. Otherwise the compilation
* unit package plus unqualified name expression represents the fully
* qualified name expression.
*
* @param compilationUnitServices for package management (required)
* @param nameToFind to locate (required)
* @param typeParameters names to consider type parameters (can be null if
* there are none)
* @return the effective Java type (never null)
*/
public static JavaType getJavaType(final CompilationUnitServices compilationUnitServices, final NameExpr nameToFind, final Set<JavaSymbolName> typeParameters) {
Validate.notNull(compilationUnitServices, "Compilation unit services required");
Validate.notNull(nameToFind, "Name to find is required");
final JavaPackage compilationUnitPackage = compilationUnitServices.getCompilationUnitPackage();
if (nameToFind instanceof QualifiedNameExpr) {
final QualifiedNameExpr qne = (QualifiedNameExpr) nameToFind;
// Handle qualified name expressions that are related to inner types
// (eg Foo.Bar)
final NameExpr qneQualifier = qne.getQualifier();
final NameExpr enclosedBy = getNameExpr(compilationUnitServices.getEnclosingTypeName().getSimpleTypeName());
if (isEqual(qneQualifier, enclosedBy)) {
// This qualified name expression is simply an inner type
// reference
final String name = compilationUnitServices.getEnclosingTypeName().getFullyQualifiedTypeName() + "." + nameToFind.getName();
return new JavaType(name, compilationUnitServices.getEnclosingTypeName());
}
// package (ROO-1210)
if (qne.toString().length() > 1 && Character.isUpperCase(qne.toString().charAt(0))) {
// First letter is uppercase, so this likely requires prepending
// of some package name
final ImportDeclaration importDeclaration = getImportDeclarationFor(compilationUnitServices, qne.getQualifier());
if (importDeclaration == null) {
if (!compilationUnitPackage.getFullyQualifiedPackageName().equals("")) {
// package
return new JavaType(compilationUnitServices.getCompilationUnitPackage().getFullyQualifiedPackageName() + "." + qne.toString());
}
} else {
return new JavaType(importDeclaration.getName() + "." + qne.getName());
}
// This name expression (which contains a dot) had its qualifier
// imported, so let's use the import
} else {
// a package
return new JavaType(qne.toString());
}
}
if ("?".equals(nameToFind.getName())) {
return new JavaType(OBJECT.getFullyQualifiedTypeName(), 0, DataType.TYPE, JavaType.WILDCARD_NEITHER_ARG, null);
}
// list
if (typeParameters != null && typeParameters.contains(new JavaSymbolName(nameToFind.getName()))) {
return new JavaType(nameToFind.getName(), 0, DataType.VARIABLE, null, null);
}
// Check if we are looking for the enclosingType itself
final NameExpr enclosingTypeName = getNameExpr(compilationUnitServices.getEnclosingTypeName().getSimpleTypeName());
if (isEqual(enclosingTypeName, nameToFind)) {
return compilationUnitServices.getEnclosingTypeName();
}
// check if the compilation unit itself declares that type
for (final TypeDeclaration internalType : compilationUnitServices.getInnerTypes()) {
final NameExpr nameExpr = getNameExpr(internalType.getName());
if (isEqual(nameExpr, nameToFind)) {
// Found, so now we need to convert the internalType to a proper
// JavaType
final String name = compilationUnitServices.getEnclosingTypeName().getFullyQualifiedTypeName() + "." + nameToFind.getName();
return new JavaType(name);
}
}
final ImportDeclaration importDeclaration = getImportDeclarationFor(compilationUnitServices, nameToFind);
if (importDeclaration == null) {
if (JdkJavaType.isPartOfJavaLang(nameToFind.getName())) {
return new JavaType("java.lang." + nameToFind.getName());
}
final String name = compilationUnitPackage.getFullyQualifiedPackageName().equals("") ? nameToFind.getName() : compilationUnitPackage.getFullyQualifiedPackageName() + "." + nameToFind.getName();
return new JavaType(name);
}
return new JavaType(importDeclaration.getName().toString());
}
use of com.github.antlrjavaparser.api.expr.NameExpr in project spring-roo by spring-projects.
the class JavaParserUtils method getImportDeclarationFor.
/**
* Looks up the import declaration applicable to the presented name
* expression.
* <p>
* If a fully-qualified name is passed to this method, the corresponding
* import will be evaluated for a complete match. If a simple name is passed
* to this method, the corresponding import will be evaluated if its simple
* name matches. This therefore reflects the normal Java semantics for using
* simple type names that have been imported.
*
* @param compilationUnitServices the types in the compilation unit
* (required)
* @param nameExpr the expression to locate an import for (which would
* generally be a {@link NameExpr} and thus not have a package
* identifier; required)
* @return the relevant import, or null if there is no import for the
* expression
*/
private static ImportDeclaration getImportDeclarationFor(final CompilationUnitServices compilationUnitServices, final NameExpr nameExpr) {
Validate.notNull(compilationUnitServices, "Compilation unit services required");
Validate.notNull(nameExpr, "Name expression required");
final List<ImportDeclaration> imports = compilationUnitServices.getImports();
for (final ImportDeclaration candidate : imports) {
final NameExpr candidateNameExpr = candidate.getName();
if (!candidate.toString().contains("*")) {
Validate.isInstanceOf(QualifiedNameExpr.class, candidateNameExpr, "Expected import '%s' to use a fully-qualified type name", candidate);
}
if (nameExpr instanceof QualifiedNameExpr) {
// is a full match
if (isEqual(nameExpr, candidateNameExpr)) {
return candidate;
}
} else {
// qualified-name package
if (candidateNameExpr.getName().equals(nameExpr.getName())) {
return candidate;
}
}
}
return null;
}
use of com.github.antlrjavaparser.api.expr.NameExpr in project spring-roo by spring-projects.
the class JavaParserAnnotationMetadataBuilder method convert.
private AnnotationAttributeValue<?> convert(JavaSymbolName annotationName, final Expression expression, final CompilationUnitServices compilationUnitServices) {
if (annotationName == null) {
annotationName = new JavaSymbolName("__ARRAY_ELEMENT__");
}
if (expression instanceof AnnotationExpr) {
final AnnotationExpr annotationExpr = (AnnotationExpr) expression;
final AnnotationMetadata value = getInstance(annotationExpr, compilationUnitServices).build();
return new NestedAnnotationAttributeValue(annotationName, value);
}
if (expression instanceof BooleanLiteralExpr) {
final boolean value = ((BooleanLiteralExpr) expression).getValue();
return new BooleanAttributeValue(annotationName, value);
}
if (expression instanceof CharLiteralExpr) {
final String value = ((CharLiteralExpr) expression).getValue();
Validate.isTrue(value.length() == 1, "Expected a char expression, but instead received '%s' for attribute '%s'", value, annotationName);
final char c = value.charAt(0);
return new CharAttributeValue(annotationName, c);
}
if (expression instanceof LongLiteralExpr) {
String value = ((LongLiteralExpr) expression).getValue();
Validate.isTrue(value.toUpperCase().endsWith("L"), "Expected long literal expression '%s' to end in 'l' or 'L'", value);
value = value.substring(0, value.length() - 1);
final long l = new Long(value);
return new LongAttributeValue(annotationName, l);
}
if (expression instanceof IntegerLiteralExpr) {
final String value = ((IntegerLiteralExpr) expression).getValue();
final int i = new Integer(value);
return new IntegerAttributeValue(annotationName, i);
}
if (expression instanceof DoubleLiteralExpr) {
String value = ((DoubleLiteralExpr) expression).getValue();
boolean floatingPrecisionOnly = false;
if (value.toUpperCase().endsWith("F")) {
value = value.substring(0, value.length() - 1);
floatingPrecisionOnly = true;
}
if (value.toUpperCase().endsWith("D")) {
value = value.substring(0, value.length() - 1);
}
final double d = new Double(value);
return new DoubleAttributeValue(annotationName, d, floatingPrecisionOnly);
}
if (expression instanceof BinaryExpr) {
String result = "";
BinaryExpr current = (BinaryExpr) expression;
while (current != null) {
String right = "";
if (current.getRight() instanceof StringLiteralExpr) {
right = ((StringLiteralExpr) current.getRight()).getValue();
} else if (current.getRight() instanceof NameExpr) {
right = ((NameExpr) current.getRight()).getName();
}
result = right + result;
if (current.getLeft() instanceof StringLiteralExpr) {
final String left = ((StringLiteralExpr) current.getLeft()).getValue();
result = left + result;
}
if (current.getLeft() instanceof BinaryExpr) {
current = (BinaryExpr) current.getLeft();
} else {
current = null;
}
}
return new StringAttributeValue(annotationName, result);
}
if (expression instanceof StringLiteralExpr) {
final String value = ((StringLiteralExpr) expression).getValue();
return new StringAttributeValue(annotationName, value);
}
if (expression instanceof FieldAccessExpr) {
final FieldAccessExpr field = (FieldAccessExpr) expression;
final String fieldName = field.getField();
// Determine the type
final Expression scope = field.getScope();
NameExpr nameToFind = null;
if (scope instanceof FieldAccessExpr) {
final FieldAccessExpr fScope = (FieldAccessExpr) scope;
nameToFind = JavaParserUtils.getNameExpr(fScope.toString());
} else if (scope instanceof NameExpr) {
nameToFind = (NameExpr) scope;
} else {
throw new UnsupportedOperationException("A FieldAccessExpr for '" + field.getScope() + "' should return a NameExpr or FieldAccessExpr (was " + field.getScope().getClass().getName() + ")");
}
final JavaType fieldType = JavaParserUtils.getJavaType(compilationUnitServices, nameToFind, null);
final EnumDetails enumDetails = new EnumDetails(fieldType, new JavaSymbolName(fieldName));
return new EnumAttributeValue(annotationName, enumDetails);
}
if (expression instanceof NameExpr) {
final NameExpr field = (NameExpr) expression;
final String name = field.getName();
// As we have no way of finding out the real type
final JavaType fieldType = new JavaType("unknown.Object");
final EnumDetails enumDetails = new EnumDetails(fieldType, new JavaSymbolName(name));
return new EnumAttributeValue(annotationName, enumDetails);
}
if (expression instanceof ClassExpr) {
final ClassExpr clazz = (ClassExpr) expression;
final Type nameToFind = clazz.getType();
final JavaType javaType = JavaParserUtils.getJavaType(compilationUnitServices, nameToFind, null);
return new ClassAttributeValue(annotationName, javaType);
}
if (expression instanceof ArrayInitializerExpr) {
final ArrayInitializerExpr castExp = (ArrayInitializerExpr) expression;
final List<AnnotationAttributeValue<?>> arrayElements = new ArrayList<AnnotationAttributeValue<?>>();
for (final Expression e : castExp.getValues()) {
arrayElements.add(convert(null, e, compilationUnitServices));
}
return new ArrayAttributeValue<AnnotationAttributeValue<?>>(annotationName, arrayElements);
}
if (expression instanceof UnaryExpr) {
final UnaryExpr castExp = (UnaryExpr) expression;
if (castExp.getOperator() == Operator.negative) {
String value = castExp.toString();
value = value.toUpperCase().endsWith("L") ? value.substring(0, value.length() - 1) : value;
final long l = new Long(value);
return new LongAttributeValue(annotationName, l);
} else {
throw new UnsupportedOperationException("Only negative operator in UnaryExpr is supported");
}
}
throw new UnsupportedOperationException("Unable to parse annotation attribute '" + annotationName + "' due to unsupported annotation expression '" + expression.getClass().getName() + "'");
}
use of com.github.antlrjavaparser.api.expr.NameExpr in project spring-roo by spring-projects.
the class JavaParserFieldMetadataBuilder method addField.
public static void addField(final CompilationUnitServices compilationUnitServices, final List<BodyDeclaration> members, final FieldMetadata field) {
Validate.notNull(compilationUnitServices, "Flushable compilation unit services required");
Validate.notNull(members, "Members required");
Validate.notNull(field, "Field required");
JavaParserUtils.importTypeIfRequired(compilationUnitServices.getEnclosingTypeName(), compilationUnitServices.getImports(), field.getFieldType());
final Type initType = JavaParserUtils.getResolvedName(compilationUnitServices.getEnclosingTypeName(), field.getFieldType(), compilationUnitServices);
final ClassOrInterfaceType finalType = JavaParserUtils.getClassOrInterfaceType(initType);
final FieldDeclaration newField = ASTHelper.createFieldDeclaration(JavaParserUtils.getJavaParserModifier(field.getModifier()), initType, field.getFieldName().getSymbolName());
// Add parameterized types for the field type (not initializer)
if (field.getFieldType().getParameters().size() > 0) {
final List<Type> fieldTypeArgs = new ArrayList<Type>();
finalType.setTypeArgs(fieldTypeArgs);
for (final JavaType parameter : field.getFieldType().getParameters()) {
fieldTypeArgs.add(JavaParserUtils.importParametersForType(compilationUnitServices.getEnclosingTypeName(), compilationUnitServices.getImports(), parameter));
}
}
final List<VariableDeclarator> vars = newField.getVariables();
Validate.notEmpty(vars, "Expected ASTHelper to have provided a single VariableDeclarator");
Validate.isTrue(vars.size() == 1, "Expected ASTHelper to have provided a single VariableDeclarator");
final VariableDeclarator vd = vars.iterator().next();
if (StringUtils.isNotBlank(field.getFieldInitializer())) {
// There is an initializer.
// We need to make a fake field that we can have JavaParser parse.
// Easiest way to do that is to build a simple source class
// containing the required field and re-parse it.
final StringBuilder sb = new StringBuilder();
sb.append("class TemporaryClass {\n");
sb.append(" private " + field.getFieldType() + " " + field.getFieldName() + " = " + field.getFieldInitializer() + ";\n");
sb.append("}\n");
final ByteArrayInputStream bais = new ByteArrayInputStream(sb.toString().getBytes());
CompilationUnit ci;
try {
ci = JavaParser.parse(bais);
} catch (final IOException e) {
throw new IllegalStateException("Illegal state: Unable to parse input stream", e);
} catch (final ParseException pe) {
throw new IllegalStateException("Illegal state: JavaParser did not parse correctly", pe);
}
final List<TypeDeclaration> types = ci.getTypes();
if (types == null || types.size() != 1) {
throw new IllegalArgumentException("Field member invalid");
}
final TypeDeclaration td = types.get(0);
final List<BodyDeclaration> bodyDeclarations = td.getMembers();
if (bodyDeclarations == null || bodyDeclarations.size() != 1) {
throw new IllegalStateException("Illegal state: JavaParser did not return body declarations correctly");
}
final BodyDeclaration bd = bodyDeclarations.get(0);
if (!(bd instanceof FieldDeclaration)) {
throw new IllegalStateException("Illegal state: JavaParser did not return a field declaration correctly");
}
final FieldDeclaration fd = (FieldDeclaration) bd;
if (fd.getVariables() == null || fd.getVariables().size() != 1) {
throw new IllegalStateException("Illegal state: JavaParser did not return a field declaration correctly");
}
final Expression init = fd.getVariables().get(0).getInit();
// Resolve imports (ROO-1505)
if (init instanceof ObjectCreationExpr) {
final ObjectCreationExpr ocr = (ObjectCreationExpr) init;
final JavaType typeToImport = JavaParserUtils.getJavaTypeNow(compilationUnitServices, ocr.getType(), null);
final NameExpr nameExpr = JavaParserUtils.importTypeIfRequired(compilationUnitServices.getEnclosingTypeName(), compilationUnitServices.getImports(), typeToImport);
final ClassOrInterfaceType classOrInterfaceType = JavaParserUtils.getClassOrInterfaceType(nameExpr);
ocr.setType(classOrInterfaceType);
if (typeToImport.getParameters().size() > 0) {
final List<Type> initTypeArgs = new ArrayList<Type>();
finalType.setTypeArgs(initTypeArgs);
for (final JavaType parameter : typeToImport.getParameters()) {
initTypeArgs.add(JavaParserUtils.importParametersForType(compilationUnitServices.getEnclosingTypeName(), compilationUnitServices.getImports(), parameter));
}
classOrInterfaceType.setTypeArgs(initTypeArgs);
}
}
vd.setInit(init);
}
// Add annotations
final List<AnnotationExpr> annotations = new ArrayList<AnnotationExpr>();
newField.setAnnotations(annotations);
for (final AnnotationMetadata annotation : field.getAnnotations()) {
JavaParserAnnotationMetadataBuilder.addAnnotationToList(compilationUnitServices, annotations, annotation);
}
// ROO-3678: Add-on which include new field should be the responsible to check if field
// exists, not JavaParser.
/*// Locate where to add this field; also verify if this field already
// exists
int nextFieldIndex = 0;
int i = -1;
for (final BodyDeclaration bd : members) {
i++;
if (bd instanceof FieldDeclaration) {
// Next field should appear after this current field
nextFieldIndex = i + 1;
final FieldDeclaration bdf = (FieldDeclaration) bd;
for (final VariableDeclarator v : bdf.getVariables()) {
Validate.isTrue(!field.getFieldName().getSymbolName()
.equals(v.getId().getName()),
"A field with name '%s' already exists", field
.getFieldName().getSymbolName());
}
}
}*/
int nextFieldIndex = 0;
int i = -1;
for (final BodyDeclaration bd : members) {
i++;
if (bd instanceof FieldDeclaration) {
// Next field should appear after this current field
nextFieldIndex = i + 1;
}
}
if (field.getCommentStructure() != null) {
// annotation
if (annotations != null && annotations.size() > 0) {
AnnotationExpr firstAnnotation = annotations.get(0);
JavaParserCommentMetadataBuilder.updateCommentsToJavaParser(firstAnnotation, field.getCommentStructure());
// Otherwise, add comments to the field declaration line
} else {
JavaParserCommentMetadataBuilder.updateCommentsToJavaParser(newField, field.getCommentStructure());
}
} else {
// ROO-3834: Append default Javadoc if not exists a comment structure
CommentStructure defaultCommentStructure = new CommentStructure();
JavadocComment javadocComment = new JavadocComment("TODO Auto-generated attribute documentation");
defaultCommentStructure.addComment(javadocComment, CommentLocation.BEGINNING);
field.setCommentStructure(defaultCommentStructure);
// annotation
if (annotations != null && annotations.size() > 0) {
AnnotationExpr firstAnnotation = annotations.get(0);
JavaParserCommentMetadataBuilder.updateCommentsToJavaParser(firstAnnotation, defaultCommentStructure);
// Otherwise, add comments to the field declaration line
} else {
JavaParserCommentMetadataBuilder.updateCommentsToJavaParser(newField, defaultCommentStructure);
}
}
// Add the field to the compilation unit
members.add(nextFieldIndex, newField);
}
use of com.github.antlrjavaparser.api.expr.NameExpr in project spring-roo by spring-projects.
the class JavaParserMethodMetadataBuilder method addMethod.
public static void addMethod(final CompilationUnitServices compilationUnitServices, final List<BodyDeclaration> members, final MethodMetadata method, Set<JavaSymbolName> typeParameters) {
Validate.notNull(compilationUnitServices, "Flushable compilation unit services required");
Validate.notNull(members, "Members required");
Validate.notNull(method, "Method required");
if (typeParameters == null) {
typeParameters = new HashSet<JavaSymbolName>();
}
// Create the return type we should use
Type returnType = null;
if (method.getReturnType().isPrimitive()) {
returnType = JavaParserUtils.getType(method.getReturnType());
} else {
final NameExpr importedType = JavaParserUtils.importTypeIfRequired(compilationUnitServices.getEnclosingTypeName(), compilationUnitServices.getImports(), method.getReturnType());
final ClassOrInterfaceType cit = JavaParserUtils.getClassOrInterfaceType(importedType);
// Add any type arguments presented for the return type
if (method.getReturnType().getParameters().size() > 0) {
final List<Type> typeArgs = new ArrayList<Type>();
cit.setTypeArgs(typeArgs);
for (final JavaType parameter : method.getReturnType().getParameters()) {
typeArgs.add(JavaParserUtils.importParametersForType(compilationUnitServices.getEnclosingTypeName(), compilationUnitServices.getImports(), parameter));
}
}
// Handle arrays
if (method.getReturnType().isArray()) {
final ReferenceType rt = new ReferenceType();
rt.setArrayCount(method.getReturnType().getArray());
rt.setType(cit);
returnType = rt;
} else {
returnType = cit;
}
}
// Start with the basic method
final MethodDeclaration d = new MethodDeclaration();
d.setModifiers(JavaParserUtils.getJavaParserModifier(method.getModifier()));
d.setName(method.getMethodName().getSymbolName());
d.setType(returnType);
// Add any method-level annotations (not parameter annotations)
final List<AnnotationExpr> annotations = new ArrayList<AnnotationExpr>();
d.setAnnotations(annotations);
for (final AnnotationMetadata annotation : method.getAnnotations()) {
JavaParserAnnotationMetadataBuilder.addAnnotationToList(compilationUnitServices, annotations, annotation);
}
// Add any method parameters, including their individual annotations and
// type parameters
final List<Parameter> parameters = new ArrayList<Parameter>();
d.setParameters(parameters);
int index = -1;
for (final AnnotatedJavaType methodParameter : method.getParameterTypes()) {
index++;
// Add the parameter annotations applicable for this parameter type
final List<AnnotationExpr> parameterAnnotations = new ArrayList<AnnotationExpr>();
for (final AnnotationMetadata parameterAnnotation : methodParameter.getAnnotations()) {
JavaParserAnnotationMetadataBuilder.addAnnotationToList(compilationUnitServices, parameterAnnotations, parameterAnnotation);
}
// Compute the parameter name
final String parameterName = method.getParameterNames().get(index).getSymbolName();
// Compute the parameter type
Type parameterType = null;
if (methodParameter.getJavaType().isPrimitive()) {
parameterType = JavaParserUtils.getType(methodParameter.getJavaType());
} else {
final NameExpr type = JavaParserUtils.importTypeIfRequired(compilationUnitServices.getEnclosingTypeName(), compilationUnitServices.getImports(), methodParameter.getJavaType());
final ClassOrInterfaceType cit = JavaParserUtils.getClassOrInterfaceType(type);
// Add any type arguments presented for the return type
if (methodParameter.getJavaType().getParameters().size() > 0) {
final List<Type> typeArgs = new ArrayList<Type>();
cit.setTypeArgs(typeArgs);
for (final JavaType parameter : methodParameter.getJavaType().getParameters()) {
typeArgs.add(JavaParserUtils.importParametersForType(compilationUnitServices.getEnclosingTypeName(), compilationUnitServices.getImports(), parameter));
}
}
// Handle arrays
if (methodParameter.getJavaType().isArray()) {
final ReferenceType rt = new ReferenceType();
rt.setArrayCount(methodParameter.getJavaType().getArray());
rt.setType(cit);
parameterType = rt;
} else {
parameterType = cit;
}
}
// Create a Java Parser method parameter and add it to the list of
// parameters
final Parameter p = new Parameter(parameterType, new VariableDeclaratorId(parameterName));
p.setVarArgs(methodParameter.isVarArgs());
p.setAnnotations(parameterAnnotations);
parameters.add(p);
}
// Add exceptions which the method my throw
if (method.getThrowsTypes().size() > 0) {
final List<NameExpr> throwsTypes = new ArrayList<NameExpr>();
for (final JavaType javaType : method.getThrowsTypes()) {
final NameExpr importedType = JavaParserUtils.importTypeIfRequired(compilationUnitServices.getEnclosingTypeName(), compilationUnitServices.getImports(), javaType);
throwsTypes.add(importedType);
}
d.setThrows(throwsTypes);
}
// Set the body
if (StringUtils.isBlank(method.getBody())) {
// Never set the body if an abstract method
if (!Modifier.isAbstract(method.getModifier()) && !PhysicalTypeCategory.INTERFACE.equals(compilationUnitServices.getPhysicalTypeCategory())) {
d.setBody(new BlockStmt());
}
} else {
// There is a body.
// We need to make a fake method that we can have JavaParser parse.
// Easiest way to do that is to build a simple source class
// containing the required method and re-parse it.
final StringBuilder sb = new StringBuilder();
sb.append("class TemporaryClass {\n");
sb.append(" public void temporaryMethod() {\n");
sb.append(method.getBody());
sb.append("\n");
sb.append(" }\n");
sb.append("}\n");
final ByteArrayInputStream bais = new ByteArrayInputStream(sb.toString().getBytes());
CompilationUnit ci;
try {
ci = JavaParser.parse(bais);
} catch (final IOException e) {
throw new IllegalStateException("Illegal state: Unable to parse input stream", e);
} catch (final ParseException pe) {
throw new IllegalStateException("Illegal state: JavaParser did not parse correctly", pe);
}
final List<TypeDeclaration> types = ci.getTypes();
if (types == null || types.size() != 1) {
throw new IllegalArgumentException("Method body invalid");
}
final TypeDeclaration td = types.get(0);
final List<BodyDeclaration> bodyDeclarations = td.getMembers();
if (bodyDeclarations == null || bodyDeclarations.size() != 1) {
throw new IllegalStateException("Illegal state: JavaParser did not return body declarations correctly");
}
final BodyDeclaration bd = bodyDeclarations.get(0);
if (!(bd instanceof MethodDeclaration)) {
throw new IllegalStateException("Illegal state: JavaParser did not return a method declaration correctly");
}
final MethodDeclaration md = (MethodDeclaration) bd;
d.setBody(md.getBody());
}
// ROO-3678: Add-on which include new method should be the responsible to check if method
// exists, not JavaParser.
/*// Locate where to add this method; also verify if this method already
// exists
for (final BodyDeclaration bd : members) {
if (bd instanceof MethodDeclaration) {
// Next method should appear after this current method
final MethodDeclaration md = (MethodDeclaration) bd;
/*if (md.getName().equals(d.getName())) {
if ((md.getParameters() == null || md.getParameters()
.isEmpty())
&& (d.getParameters() == null || d.getParameters()
.isEmpty())) {
throw new IllegalStateException("Method '"
+ method.getMethodName().getSymbolName()
+ "' already exists");
}
else if (md.getParameters() != null
&& md.getParameters().size() == d.getParameters()
.size()) {
// Possible match, we need to consider parameter types
// as well now
final MethodMetadata methodMetadata = JavaParserMethodMetadataBuilder
.getInstance(method.getDeclaredByMetadataId(),
md, compilationUnitServices,
typeParameters).build();
boolean matchesFully = true;
index = -1;
for (final AnnotatedJavaType existingParameter : methodMetadata
.getParameterTypes()) {
index++;
final AnnotatedJavaType parameterType = method
.getParameterTypes().get(index);
if (!existingParameter.getJavaType().equals(
parameterType.getJavaType())) {
matchesFully = false;
break;
}
}
if (matchesFully) {
throw new IllegalStateException(
"Method '"
+ method.getMethodName()
.getSymbolName()
+ "' already exists with identical parameters");
}
}
}
}
}*/
// ROO-3834: Append Javadoc
CommentStructure commentStructure = method.getCommentStructure();
if (commentStructure != null) {
// annotation
if (annotations != null && annotations.size() > 0) {
AnnotationExpr firstAnnotation = annotations.get(0);
JavaParserCommentMetadataBuilder.updateCommentsToJavaParser(firstAnnotation, commentStructure);
// Otherwise, add comments to the method declaration line
} else {
JavaParserCommentMetadataBuilder.updateCommentsToJavaParser(d, commentStructure);
}
} else {
// ROO-3834: Include default documentation
CommentStructure defaultCommentStructure = new CommentStructure();
// ROO-3834: Append default Javadoc if not exists a comment structure,
// including method params, return and throws.
List<String> parameterNames = new ArrayList<String>();
for (JavaSymbolName name : method.getParameterNames()) {
parameterNames.add(name.getSymbolName());
}
List<String> throwsTypesNames = new ArrayList<String>();
for (JavaType type : method.getThrowsTypes()) {
throwsTypesNames.add(type.getSimpleTypeName());
}
String returnInfo = null;
JavaType returnJavaType = method.getReturnType();
if (!returnJavaType.equals(JavaType.VOID_OBJECT) && !returnJavaType.equals(JavaType.VOID_PRIMITIVE)) {
returnInfo = returnJavaType.getSimpleTypeName();
}
JavadocComment javadocComment = new JavadocComment("TODO Auto-generated method documentation", parameterNames, returnInfo, throwsTypesNames);
defaultCommentStructure.addComment(javadocComment, CommentLocation.BEGINNING);
method.setCommentStructure(defaultCommentStructure);
// annotation
if (annotations != null && annotations.size() > 0) {
AnnotationExpr firstAnnotation = annotations.get(0);
JavaParserCommentMetadataBuilder.updateCommentsToJavaParser(firstAnnotation, defaultCommentStructure);
// Otherwise, add comments to the method declaration line
} else {
JavaParserCommentMetadataBuilder.updateCommentsToJavaParser(d, defaultCommentStructure);
}
}
// Add the method to the end of the compilation unit
members.add(d);
}
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