/**
* Validate the given Java type name, either simple or qualified, for the given source and
* compliance levels.
*
* <p>For example, <code>"java.lang.Object"</code>, or <code>"Object"</code>.
*
* <p>The source level and compliance level values should be taken from the constant defined
* inside {@link JavaCore} class. The constants are named <code>JavaCore#VERSION_1_x</code>, x
* being set between '1' and '8'.
*
* @param name the name of a type
* @param sourceLevel the source level
* @param complianceLevel the compliance level
* @return a status object with code <code>IStatus.OK</code> if the given name is valid as a Java
* type name, a status with code <code>IStatus.WARNING</code> indicating why the given name is
* discouraged, otherwise a status object indicating what is wrong with the name
* @since 3.3
* @see JavaCore#VERSION_1_1
* @see JavaCore#VERSION_1_2
* @see JavaCore#VERSION_1_3
* @see JavaCore#VERSION_1_4
* @see JavaCore#VERSION_1_5
* @see JavaCore#VERSION_1_6
* @see JavaCore#VERSION_1_7
* @see JavaCore#VERSION_1_8
*/
public static IStatus validateJavaTypeName(
String name, String sourceLevel, String complianceLevel) {
if (name == null) {
return new Status(
IStatus.ERROR, JavaCore.PLUGIN_ID, -1, Messages.convention_type_nullName, null);
}
String trimmed = name.trim();
if (!name.equals(trimmed)) {
return new Status(
IStatus.ERROR, JavaCore.PLUGIN_ID, -1, Messages.convention_type_nameWithBlanks, null);
}
int index = name.lastIndexOf('.');
char[] scannedID;
if (index == -1) {
// simple name
scannedID = scannedIdentifier(name, sourceLevel, complianceLevel);
} else {
// qualified name
String pkg = name.substring(0, index).trim();
IStatus status = validatePackageName(pkg, sourceLevel, complianceLevel);
if (!status.isOK()) {
return status;
}
String type = name.substring(index + 1).trim();
scannedID = scannedIdentifier(type, sourceLevel, complianceLevel);
}
if (scannedID != null) {
IStatus status =
ResourcesPlugin.getWorkspace().validateName(new String(scannedID), IResource.FILE);
if (!status.isOK()) {
return status;
}
if (CharOperation.contains('$', scannedID)) {
return new Status(
IStatus.WARNING, JavaCore.PLUGIN_ID, -1, Messages.convention_type_dollarName, null);
}
if ((scannedID.length > 0 && ScannerHelper.isLowerCase(scannedID[0]))) {
return new Status(
IStatus.WARNING, JavaCore.PLUGIN_ID, -1, Messages.convention_type_lowercaseName, null);
}
return JavaModelStatus.VERIFIED_OK;
} else {
return new Status(
IStatus.ERROR,
JavaCore.PLUGIN_ID,
-1,
Messages.bind(Messages.convention_type_invalidName, name),
null);
}
}
/**
* Validate the given package name for the given source and compliance levels.
*
* <p>The syntax of a package name corresponds to PackageName as defined by PackageDeclaration
* (JLS2 7.4). For example, <code>"java.lang"</code>.
*
* <p>Note that the given name must be a non-empty package name (that is, attempting to validate
* the default package will return an error status.) Also it must not contain any characters or
* substrings that are not valid on the file system on which workspace root is located.
*
* @param name the name of a package
* @param sourceLevel the source level
* @param complianceLevel the compliance level
* @return a status object with code <code>IStatus.OK</code> if the given name is valid as a
* package name, otherwise a status object indicating what is wrong with the name
* @since 3.3
*/
public static IStatus validatePackageName(
String name, String sourceLevel, String complianceLevel) {
if (name == null) {
return new Status(
IStatus.ERROR, JavaCore.PLUGIN_ID, -1, Messages.convention_package_nullName, null);
}
int length;
if ((length = name.length()) == 0) {
return new Status(
IStatus.ERROR, JavaCore.PLUGIN_ID, -1, Messages.convention_package_emptyName, null);
}
if (name.charAt(0) == DOT || name.charAt(length - 1) == DOT) {
return new Status(
IStatus.ERROR, JavaCore.PLUGIN_ID, -1, Messages.convention_package_dotName, null);
}
if (CharOperation.isWhitespace(name.charAt(0))
|| CharOperation.isWhitespace(name.charAt(name.length() - 1))) {
return new Status(
IStatus.ERROR, JavaCore.PLUGIN_ID, -1, Messages.convention_package_nameWithBlanks, null);
}
int dot = 0;
while (dot != -1 && dot < length - 1) {
if ((dot = name.indexOf(DOT, dot + 1)) != -1
&& dot < length - 1
&& name.charAt(dot + 1) == DOT) {
return new Status(
IStatus.ERROR,
JavaCore.PLUGIN_ID,
-1,
Messages.convention_package_consecutiveDotsName,
null);
}
}
IWorkspace workspace = ResourcesPlugin.getWorkspace();
StringTokenizer st = new StringTokenizer(name, "."); // $NON-NLS-1$
boolean firstToken = true;
IStatus warningStatus = null;
while (st.hasMoreTokens()) {
String typeName = st.nextToken();
typeName = typeName.trim(); // grammar allows spaces
char[] scannedID = scannedIdentifier(typeName, sourceLevel, complianceLevel);
if (scannedID == null) {
return new Status(
IStatus.ERROR,
JavaCore.PLUGIN_ID,
-1,
Messages.bind(Messages.convention_illegalIdentifier, typeName),
null);
}
IStatus status = workspace.validateName(new String(scannedID), IResource.FOLDER);
if (!status.isOK()) {
return status;
}
if (firstToken && scannedID.length > 0 && ScannerHelper.isUpperCase(scannedID[0])) {
if (warningStatus == null) {
warningStatus =
new Status(
IStatus.WARNING,
JavaCore.PLUGIN_ID,
-1,
Messages.convention_package_uppercaseName,
null);
}
}
firstToken = false;
}
if (warningStatus != null) {
return warningStatus;
}
return JavaModelStatus.VERIFIED_OK;
}