/*******************************************************************************
* Copyright (c) 2003, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
/*
* Created on Apr 30, 2004
*
* To change the template for this generated file go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
package org.eclipse.jst.j2ee.internal.common.operations;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Map;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.core.ClasspathContainerInitializer;
import org.eclipse.jdt.core.Flags;
import org.eclipse.jdt.core.IClassFile;
import org.eclipse.jdt.core.IClasspathContainer;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.ICodeAssist;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IMember;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IOpenable;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IParent;
import org.eclipse.jdt.core.ISourceReference;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.ITypeHierarchy;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jdt.core.WorkingCopyOwner;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.launching.IVMInstall;
import org.eclipse.jdt.launching.IVMInstall2;
import org.eclipse.jdt.launching.JavaRuntime;
//TODO this is a copy of the class in org.eclipse.jdt.ui and should be deleted once bugzilla 60567
// is addressed
/**
*
* @author jsholl
*
* To change the template for this generated type comment go to Window - Preferences - Java - Code
* Generation - Code and Comments
*/
/**
* Utility methods for the Java Model.
*/
public final class JavaModelUtil {
/**
* Only use this suffix for creating new .java files.
* In general, use one of the three *JavaLike*(..) methods in JavaCore or create
* a name from an existing compilation unit with {@link #getRenamedCUName(ICompilationUnit, String)}
* <p>
* Note: Unlike {@link JavaCore#getJavaLikeExtensions()}, this suffix includes a leading ".".
* </p>
*
* @see JavaCore#getJavaLikeExtensions()
* @see JavaCore#isJavaLikeFileName(String)
* @see JavaCore#removeJavaLikeExtension(String)
* @see #getRenamedCUName(ICompilationUnit, String)
*/
public static final String DEFAULT_CU_SUFFIX= ".java"; //$NON-NLS-1$
/**
* Finds a type by its qualified type name (dot separated).
* @param jproject The java project to search in
* @param fullyQualifiedName The fully qualified name (type name with enclosing type names and package (all separated by dots))
* @return The type found, or null if not existing
*/
public static IType findType(IJavaProject jproject, String fullyQualifiedName) throws JavaModelException {
//workaround for bug 22883
IType type= jproject.findType(fullyQualifiedName);
if (type != null)
return type;
IPackageFragmentRoot[] roots= jproject.getPackageFragmentRoots();
for (int i= 0; i < roots.length; i++) {
IPackageFragmentRoot root= roots[i];
type= findType(root, fullyQualifiedName);
if (type != null && type.exists())
return type;
}
return null;
}
/**
* Finds a type by its qualified type name (dot separated).
* @param jproject The java project to search in
* @param fullyQualifiedName The fully qualified name (type name with enclosing type names and package (all separated by dots))
* @param owner the working copy owner
* @return The type found, or null if not existing
*/
public static IType findType(IJavaProject jproject, String fullyQualifiedName, WorkingCopyOwner owner) throws JavaModelException {
//workaround for bug 22883
IType type= jproject.findType(fullyQualifiedName, owner);
if (type != null)
return type;
IPackageFragmentRoot[] roots= jproject.getPackageFragmentRoots();
for (int i= 0; i < roots.length; i++) {
IPackageFragmentRoot root= roots[i];
type= findType(root, fullyQualifiedName);
if (type != null && type.exists())
return type;
}
return null;
}
private static IType findType(IPackageFragmentRoot root, String fullyQualifiedName) throws JavaModelException{
IJavaElement[] children= root.getChildren();
for (int i= 0; i < children.length; i++) {
IJavaElement element= children[i];
if (element.getElementType() == IJavaElement.PACKAGE_FRAGMENT){
IPackageFragment pack= (IPackageFragment)element;
if (! fullyQualifiedName.startsWith(pack.getElementName()))
continue;
IType type= findType(pack, fullyQualifiedName);
if (type != null && type.exists())
return type;
}
}
return null;
}
private static IType findType(IPackageFragment pack, String fullyQualifiedName) throws JavaModelException{
ICompilationUnit[] cus= pack.getCompilationUnits();
for (int i= 0; i < cus.length; i++) {
ICompilationUnit unit= cus[i];
IType type= findType(unit, fullyQualifiedName);
if (type != null && type.exists())
return type;
}
return null;
}
private static IType findType(ICompilationUnit cu, String fullyQualifiedName) throws JavaModelException{
IType[] types= cu.getAllTypes();
for (int i= 0; i < types.length; i++) {
IType type= types[i];
if (getFullyQualifiedName(type).equals(fullyQualifiedName))
return type;
}
return null;
}
/**
* Finds a type container by container name.
* The returned element will be of type <code>IType</code> or a <code>IPackageFragment</code>.
* <code>null</code> is returned if the type container could not be found.
* @param jproject The Java project defining the context to search
* @param typeContainerName A dot separated name of the type container
* @see #getTypeContainerName(IType)
*/
public static IJavaElement findTypeContainer(IJavaProject jproject, String typeContainerName) throws JavaModelException {
// try to find it as type
IJavaElement result= jproject.findType(typeContainerName);
if (result == null) {
// find it as package
IPath path= new Path(typeContainerName.replace('.', '/'));
result= jproject.findElement(path);
if (!(result instanceof IPackageFragment)) {
result= null;
}
}
return result;
}
/**
* Finds a type in a compilation unit. Typical usage is to find the corresponding
* type in a working copy.
* @param cu the compilation unit to search in
* @param typeQualifiedName the type qualified name (type name with enclosing type names (separated by dots))
* @return the type found, or null if not existing
*/
public static IType findTypeInCompilationUnit(ICompilationUnit cu, String typeQualifiedName) throws JavaModelException {
IType[] types= cu.getAllTypes();
for (int i= 0; i < types.length; i++) {
String currName= getTypeQualifiedName(types[i]);
if (typeQualifiedName.equals(currName)) {
return types[i];
}
}
return null;
}
/**
* Returns the element of the given compilation unit which is "equal" to the
* given element. Note that the given element usually has a parent different
* from the given compilation unit.
*
* @param cu the cu to search in
* @param element the element to look for
* @return an element of the given cu "equal" to the given element
*/
public static IJavaElement findInCompilationUnit(ICompilationUnit cu, IJavaElement element) {
IJavaElement[] elements= cu.findElements(element);
if (elements != null && elements.length > 0) {
return elements[0];
}
return null;
}
/**
* Returns the qualified type name of the given type using '.' as separators.
* This is a replace for IType.getTypeQualifiedName()
* which uses '$' as separators. As '$' is also a valid character in an id
* this is ambiguous. JavaCore PR: 1GCFUNT
*/
public static String getTypeQualifiedName(IType type) {
try {
if (type.isBinary() && !type.isAnonymous()) {
IType declaringType= type.getDeclaringType();
if (declaringType != null) {
return getTypeQualifiedName(declaringType) + '.' + type.getElementName();
}
}
} catch (JavaModelException e) {
// ignore
}
return type.getTypeQualifiedName('.');
}
/**
* Returns the fully qualified name of the given type using '.' as separators.
* This is a replace for IType.getFullyQualifiedTypeName
* which uses '$' as separators. As '$' is also a valid character in an id
* this is ambiguous. JavaCore PR: 1GCFUNT
*/
public static String getFullyQualifiedName(IType type) {
try {
if (type.isBinary() && !type.isAnonymous()) {
IType declaringType= type.getDeclaringType();
if (declaringType != null) {
return getFullyQualifiedName(declaringType) + '.' + type.getElementName();
}
}
} catch (JavaModelException e) {
// ignore
}
return type.getFullyQualifiedName('.');
}
/**
* Returns the fully qualified name of a type's container. (package name or enclosing type name)
*/
public static String getTypeContainerName(IType type) {
IType outerType= type.getDeclaringType();
if (outerType != null) {
return getFullyQualifiedName(outerType);
}
return type.getPackageFragment().getElementName();
}
/**
* Concatenates two names. Uses a dot for separation.
* Both strings can be empty or <code>null</code>.
*/
public static String concatenateName(String name1, String name2) {
StringBuffer buf= new StringBuffer();
if (name1 != null && name1.length() > 0) {
buf.append(name1);
}
if (name2 != null && name2.length() > 0) {
if (buf.length() > 0) {
buf.append('.');
}
buf.append(name2);
}
return buf.toString();
}
/**
* Concatenates two names. Uses a dot for separation.
* Both strings can be empty or <code>null</code>.
*/
public static String concatenateName(char[] name1, char[] name2) {
StringBuffer buf= new StringBuffer();
if (name1 != null && name1.length > 0) {
buf.append(name1);
}
if (name2 != null && name2.length > 0) {
if (buf.length() > 0) {
buf.append('.');
}
buf.append(name2);
}
return buf.toString();
}
/**
* Evaluates if a member (possible from another package) is visible from
* elements in a package.
* @param member The member to test the visibility for
* @param pack The package in focus
*/
public static boolean isVisible(IMember member, IPackageFragment pack) throws JavaModelException {
int type= member.getElementType();
if (type == IJavaElement.INITIALIZER || (type == IJavaElement.METHOD && member.getElementName().startsWith("<"))) { //$NON-NLS-1$
return false;
}
int otherflags= member.getFlags();
IType declaringType= member.getDeclaringType();
if (Flags.isPublic(otherflags) || (declaringType != null && isInterfaceOrAnnotation(declaringType))) {
return true;
} else if (Flags.isPrivate(otherflags)) {
return false;
}
IPackageFragment otherpack= (IPackageFragment) member.getAncestor(IJavaElement.PACKAGE_FRAGMENT);
return (pack != null && otherpack != null && isSamePackage(pack, otherpack));
}
/**
* Evaluates if a member in the focus' element hierarchy is visible from
* elements in a package.
* @param member The member to test the visibility for
* @param pack The package of the focus element focus
*/
public static boolean isVisibleInHierarchy(IMember member, IPackageFragment pack) throws JavaModelException {
int type= member.getElementType();
if (type == IJavaElement.INITIALIZER || (type == IJavaElement.METHOD && member.getElementName().startsWith("<"))) { //$NON-NLS-1$
return false;
}
int otherflags= member.getFlags();
IType declaringType= member.getDeclaringType();
if (Flags.isPublic(otherflags) || Flags.isProtected(otherflags) || (declaringType != null && isInterfaceOrAnnotation(declaringType))) {
return true;
} else if (Flags.isPrivate(otherflags)) {
return false;
}
IPackageFragment otherpack= (IPackageFragment) member.getAncestor(IJavaElement.PACKAGE_FRAGMENT);
return (pack != null && pack.equals(otherpack));
}
/**
* Returns the package fragment root of <code>IJavaElement</code>. If the given
* element is already a package fragment root, the element itself is returned.
*/
public static IPackageFragmentRoot getPackageFragmentRoot(IJavaElement element) {
return (IPackageFragmentRoot) element.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
}
/**
* Finds a method in a type.
* This searches for a method with the same name and signature. Parameter types are only
* compared by the simple name, no resolving for the fully qualified type name is done.
* Constructors are only compared by parameters, not the name.
* @param name The name of the method to find
* @param paramTypes The type signatures of the parameters e.g. <code>{"QString;","I"}</code>
* @param isConstructor If the method is a constructor
* @return The first found method or <code>null</code>, if nothing found
*/
public static IMethod findMethod(String name, String[] paramTypes, boolean isConstructor, IType type) throws JavaModelException {
IMethod[] methods= type.getMethods();
for (int i= 0; i < methods.length; i++) {
if (isSameMethodSignature(name, paramTypes, isConstructor, methods[i])) {
return methods[i];
}
}
return null;
}
/**
* @deprecated use {@link #findMethodInHierarchy(ITypeHierarchy, IType, String, String[], boolean)}
*/
public static IMethod findMethodImplementationInHierarchy(ITypeHierarchy hierarchy, IType type, String name, String[] paramTypes, boolean isConstructor) throws JavaModelException {
return findMethodInHierarchy(hierarchy, type, name, paramTypes, isConstructor);
}
/**
* Finds a method in a type and all its super types. The super class hierarchy is searched first, then the super interfaces.
* This searches for a method with the same name and signature. Parameter types are only
* compared by the simple name, no resolving for the fully qualified type name is done.
* Constructors are only compared by parameters, not the name.
* NOTE: For finding overridden methods or for finding the declaring method, use {@link MethodOverrideTester}
* @param hierarchy The hierarchy containing the type
* @param type The type to start the search from
* @param name The name of the method to find
* @param paramTypes The type signatures of the parameters e.g. <code>{"QString;","I"}</code>
* @param isConstructor If the method is a constructor
* @return The first found method or <code>null</code>, if nothing found
*/
public static IMethod findMethodInHierarchy(ITypeHierarchy hierarchy, IType type, String name, String[] paramTypes, boolean isConstructor) throws JavaModelException {
IMethod method= findMethod(name, paramTypes, isConstructor, type);
if (method != null) {
return method;
}
IType superClass= hierarchy.getSuperclass(type);
if (superClass != null) {
IMethod res= findMethodInHierarchy(hierarchy, superClass, name, paramTypes, isConstructor);
if (res != null) {
return res;
}
}
if (!isConstructor) {
IType[] superInterfaces= hierarchy.getSuperInterfaces(type);
for (int i= 0; i < superInterfaces.length; i++) {
IMethod res= findMethodInHierarchy(hierarchy, superInterfaces[i], name, paramTypes, false);
if (res != null) {
return res;
}
}
}
return method;
}
/**
* Tests if a method equals to the given signature.
* Parameter types are only compared by the simple name, no resolving for
* the fully qualified type name is done. Constructors are only compared by
* parameters, not the name.
* @param name Name of the method
* @param paramTypes The type signatures of the parameters e.g. <code>{"QString;","I"}</code>
* @param isConstructor Specifies if the method is a constructor
* @return Returns <code>true</code> if the method has the given name and parameter types and constructor state.
*/
public static boolean isSameMethodSignature(String name, String[] paramTypes, boolean isConstructor, IMethod curr) throws JavaModelException {
if (isConstructor || name.equals(curr.getElementName())) {
if (isConstructor == curr.isConstructor()) {
String[] currParamTypes= curr.getParameterTypes();
if (paramTypes.length == currParamTypes.length) {
for (int i= 0; i < paramTypes.length; i++) {
String t1= Signature.getSimpleName(Signature.toString(paramTypes[i]));
String t2= Signature.getSimpleName(Signature.toString(currParamTypes[i]));
if (!t1.equals(t2)) {
return false;
}
}
return true;
}
}
}
return false;
}
/**
* Tests if two <code>IPackageFragment</code>s represent the same logical java package.
* @return <code>true</code> if the package fragments' names are equal.
*/
public static boolean isSamePackage(IPackageFragment pack1, IPackageFragment pack2) {
return pack1.getElementName().equals(pack2.getElementName());
}
/**
* Checks whether the given type has a valid main method or not.
*/
public static boolean hasMainMethod(IType type) throws JavaModelException {
IMethod[] methods= type.getMethods();
for (int i= 0; i < methods.length; i++) {
if (methods[i].isMainMethod()) {
return true;
}
}
return false;
}
/**
* Checks if the field is boolean.
*/
public static boolean isBoolean(IField field) throws JavaModelException{
return field.getTypeSignature().equals(Signature.SIG_BOOLEAN);
}
/**
* @return <code>true</code> iff the type is an interface or an annotation
*/
public static boolean isInterfaceOrAnnotation(IType type) throws JavaModelException {
return type.isInterface();
}
/**
* Resolves a type name in the context of the declaring type.
*
* @param refTypeSig the type name in signature notation (for example 'QVector') this can also be an array type, but dimensions will be ignored.
* @param declaringType the context for resolving (type where the reference was made in)
* @return returns the fully qualified type name or build-in-type name. if a unresolved type couldn't be resolved null is returned
*/
public static String getResolvedTypeName(String refTypeSig, IType declaringType) throws JavaModelException {
int arrayCount= Signature.getArrayCount(refTypeSig);
char type= refTypeSig.charAt(arrayCount);
if (type == Signature.C_UNRESOLVED) {
String name= ""; //$NON-NLS-1$
int bracket= refTypeSig.indexOf(Signature.C_GENERIC_START, arrayCount + 1);
if (bracket > 0)
name= refTypeSig.substring(arrayCount + 1, bracket);
else {
int semi= refTypeSig.indexOf(Signature.C_SEMICOLON, arrayCount + 1);
if (semi == -1) {
throw new IllegalArgumentException();
}
name= refTypeSig.substring(arrayCount + 1, semi);
}
String[][] resolvedNames= declaringType.resolveType(name);
if (resolvedNames != null && resolvedNames.length > 0) {
return JavaModelUtil.concatenateName(resolvedNames[0][0], resolvedNames[0][1]);
}
return null;
}
return Signature.toString(refTypeSig.substring(arrayCount));
}
/**
* Returns if a CU can be edited.
*/
public static boolean isEditable(ICompilationUnit cu) {
Assert.isNotNull(cu);
IResource resource= cu.getPrimary().getResource();
return (resource.exists() && !resource.getResourceAttributes().isReadOnly());
}
/**
* Returns the original if the given member. If the member is already
* an original the input is returned. The returned member might not exist
*
* @deprecated Replace by IMember#getPrimaryElement() if <code>member</code> is not part
* of a shared working copy owner. Also have a look at http://bugs.eclipse.org/bugs/show_bug.cgi?id=18568
*/
public static IMember toOriginal(IMember member) {
if (member instanceof IMethod)
return toOriginalMethod((IMethod)member);
// TODO: remove toOriginalMethod(IMethod)
return (IMember) member.getPrimaryElement();
/*ICompilationUnit cu= member.getCompilationUnit();
if (cu != null && cu.isWorkingCopy())
return (IMember)cu.getOriginal(member);
return member;*/
}
/*
* TODO remove if toOriginal(IMember) can be removed
* XXX workaround for bug 18568
* http://bugs.eclipse.org/bugs/show_bug.cgi?id=18568
* to be removed once the bug is fixed
*/
private static IMethod toOriginalMethod(IMethod method) {
ICompilationUnit cu= method.getCompilationUnit();
if (cu == null || isPrimary(cu)) {
return method;
}
try{
//use the workaround only if needed
if (! method.getElementName().equals(method.getDeclaringType().getElementName()))
return (IMethod) method.getPrimaryElement();
IType originalType = (IType) toOriginal(method.getDeclaringType());
IMethod[] methods = originalType.findMethods(method);
boolean isConstructor = method.isConstructor();
for (int i=0; i < methods.length; i++) {
if (methods[i].isConstructor() == isConstructor)
return methods[i];
}
return null;
} catch (JavaModelException e){
return null;
}
}
/**
* Returns true if a cu is a primary cu (original or shared working copy)
*/
public static boolean isPrimary(ICompilationUnit cu) {
return cu.getOwner() == null;
}
/*
* http://bugs.eclipse.org/bugs/show_bug.cgi?id=19253
*
* Reconciling happens in a separate thread. This can cause a situation where the
* Java element gets disposed after an exists test has been done. So we should not
* log not present exceptions when they happen in working copies.
*/
public static boolean isExceptionToBeLogged(CoreException exception) {
if (!(exception instanceof JavaModelException))
return true;
JavaModelException je= (JavaModelException)exception;
if (!je.isDoesNotExist())
return true;
IJavaElement[] elements= je.getJavaModelStatus().getElements();
for (int i= 0; i < elements.length; i++) {
IJavaElement element= elements[i];
// if the element is already a compilation unit don't log
// does not exist exceptions. See bug
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=75894
// for more details
if (element.getElementType() == IJavaElement.COMPILATION_UNIT)
continue;
ICompilationUnit unit= (ICompilationUnit)element.getAncestor(IJavaElement.COMPILATION_UNIT);
if (unit == null)
return true;
if (!unit.isWorkingCopy())
return true;
}
return false;
}
public static boolean isSuperType(ITypeHierarchy hierarchy, IType possibleSuperType, IType type) {
// filed bug 112635 to add this method to ITypeHierarchy
IType superClass= hierarchy.getSuperclass(type);
if (superClass != null && (possibleSuperType.equals(superClass) || isSuperType(hierarchy, possibleSuperType, superClass))) {
return true;
}
if (Flags.isInterface(hierarchy.getCachedFlags(possibleSuperType))) {
IType[] superInterfaces= hierarchy.getSuperInterfaces(type);
for (int i= 0; i < superInterfaces.length; i++) {
IType curr= superInterfaces[i];
if (possibleSuperType.equals(curr) || isSuperType(hierarchy, possibleSuperType, curr)) {
return true;
}
}
}
return false;
}
public static boolean isExcludedPath(IPath resourcePath, IPath[] exclusionPatterns) {
char[] path = resourcePath.toString().toCharArray();
for (int i = 0, length = exclusionPatterns.length; i < length; i++) {
char[] pattern= exclusionPatterns[i].toString().toCharArray();
if (CharOperation.pathMatch(pattern, path, true, '/')) {
return true;
}
}
return false;
}
/*
* Returns whether the given resource path matches one of the exclusion
* patterns.
*
* @see IClasspathEntry#getExclusionPatterns
*/
public final static boolean isExcluded(IPath resourcePath, char[][] exclusionPatterns) {
if (exclusionPatterns == null) return false;
char[] path = resourcePath.toString().toCharArray();
for (int i = 0, length = exclusionPatterns.length; i < length; i++)
if (CharOperation.pathMatch(exclusionPatterns[i], path, true, '/'))
return true;
return false;
}
/**
* Force a reconcile of a compilation unit.
* @param unit
*/
public static void reconcile(ICompilationUnit unit) throws JavaModelException {
unit.reconcile(
ICompilationUnit.NO_AST,
false /* don't force problem detection */,
null /* use primary owner */,
null /* no progress monitor */);
}
/**
* Helper method that tests if an classpath entry can be found in a
* container. <code>null</code> is returned if the entry can not be found
* or if the container does not allows the configuration of source
* attachments
* @param jproject The container's parent project
* @param containerPath The path of the container
* @param libPath The path of the library to be found
* @return IClasspathEntry A classpath entry from the container of
* <code>null</code> if the container can not be modified.
*/
public static IClasspathEntry getClasspathEntryToEdit(IJavaProject jproject, IPath containerPath, IPath libPath) throws JavaModelException {
IClasspathContainer container= JavaCore.getClasspathContainer(containerPath, jproject);
ClasspathContainerInitializer initializer= JavaCore.getClasspathContainerInitializer(containerPath.segment(0));
if (container != null && initializer != null && initializer.canUpdateClasspathContainer(containerPath, jproject)) {
IClasspathEntry[] entries= container.getClasspathEntries();
for (int i= 0; i < entries.length; i++) {
IClasspathEntry curr= entries[i];
IClasspathEntry resolved= JavaCore.getResolvedClasspathEntry(curr);
if (resolved != null && libPath.equals(resolved.getPath())) {
return curr; // return the real entry
}
}
}
return null; // attachment not possible
}
/**
* Get all compilation units of a selection.
* @param javaElements the selected java elements
* @return all compilation units containing and contained in elements from javaElements
* @throws JavaModelException
*/
public static ICompilationUnit[] getAllCompilationUnits(IJavaElement[] javaElements) throws JavaModelException {
HashSet result= new HashSet();
for (int i= 0; i < javaElements.length; i++) {
addAllCus(result, javaElements[i]);
}
return (ICompilationUnit[]) result.toArray(new ICompilationUnit[result.size()]);
}
private static void addAllCus(HashSet/*<ICompilationUnit>*/ collector, IJavaElement javaElement) throws JavaModelException {
switch (javaElement.getElementType()) {
case IJavaElement.JAVA_PROJECT:
IJavaProject javaProject= (IJavaProject) javaElement;
IPackageFragmentRoot[] packageFragmentRoots= javaProject.getPackageFragmentRoots();
for (int i= 0; i < packageFragmentRoots.length; i++)
addAllCus(collector, packageFragmentRoots[i]);
return;
case IJavaElement.PACKAGE_FRAGMENT_ROOT:
IPackageFragmentRoot packageFragmentRoot= (IPackageFragmentRoot) javaElement;
if (packageFragmentRoot.getKind() != IPackageFragmentRoot.K_SOURCE)
return;
IJavaElement[] packageFragments= packageFragmentRoot.getChildren();
for (int j= 0; j < packageFragments.length; j++)
addAllCus(collector, packageFragments[j]);
return;
case IJavaElement.PACKAGE_FRAGMENT:
IPackageFragment packageFragment= (IPackageFragment) javaElement;
collector.addAll(Arrays.asList(packageFragment.getCompilationUnits()));
return;
case IJavaElement.COMPILATION_UNIT:
collector.add(javaElement);
return;
default:
IJavaElement cu= javaElement.getAncestor(IJavaElement.COMPILATION_UNIT);
if (cu != null)
collector.add(cu);
}
}
/**
* Sets all compliance settings in the given map to 5.0
*/
public static void set50CompilanceOptions(Map map) {
setCompilanceOptions(map, JavaCore.VERSION_1_5);
}
public static void setCompilanceOptions(Map map, String compliance) {
if (JavaCore.VERSION_1_6.equals(compliance)) {
map.put(JavaCore.COMPILER_COMPLIANCE, JavaCore.VERSION_1_6);
map.put(JavaCore.COMPILER_SOURCE, JavaCore.VERSION_1_6);
map.put(JavaCore.COMPILER_CODEGEN_TARGET_PLATFORM, JavaCore.VERSION_1_6);
map.put(JavaCore.COMPILER_PB_ASSERT_IDENTIFIER, JavaCore.ERROR);
map.put(JavaCore.COMPILER_PB_ENUM_IDENTIFIER, JavaCore.ERROR);
} else if (JavaCore.VERSION_1_5.equals(compliance)) {
map.put(JavaCore.COMPILER_COMPLIANCE, JavaCore.VERSION_1_5);
map.put(JavaCore.COMPILER_SOURCE, JavaCore.VERSION_1_5);
map.put(JavaCore.COMPILER_CODEGEN_TARGET_PLATFORM, JavaCore.VERSION_1_5);
map.put(JavaCore.COMPILER_PB_ASSERT_IDENTIFIER, JavaCore.ERROR);
map.put(JavaCore.COMPILER_PB_ENUM_IDENTIFIER, JavaCore.ERROR);
} else if (JavaCore.VERSION_1_4.equals(compliance)) {
map.put(JavaCore.COMPILER_COMPLIANCE, JavaCore.VERSION_1_4);
map.put(JavaCore.COMPILER_SOURCE, JavaCore.VERSION_1_3);
map.put(JavaCore.COMPILER_CODEGEN_TARGET_PLATFORM, JavaCore.VERSION_1_2);
map.put(JavaCore.COMPILER_PB_ASSERT_IDENTIFIER, JavaCore.WARNING);
map.put(JavaCore.COMPILER_PB_ENUM_IDENTIFIER, JavaCore.WARNING);
} else if (JavaCore.VERSION_1_3.equals(compliance)) {
map.put(JavaCore.COMPILER_COMPLIANCE, JavaCore.VERSION_1_3);
map.put(JavaCore.COMPILER_SOURCE, JavaCore.VERSION_1_3);
map.put(JavaCore.COMPILER_CODEGEN_TARGET_PLATFORM, JavaCore.VERSION_1_1);
map.put(JavaCore.COMPILER_PB_ASSERT_IDENTIFIER, JavaCore.IGNORE);
map.put(JavaCore.COMPILER_PB_ENUM_IDENTIFIER, JavaCore.IGNORE);
} else {
throw new IllegalArgumentException("Unsupported compliance: " + compliance); //$NON-NLS-1$
}
}
/**
* @return returns if version 1 is less than version 2.
*/
public static boolean isVersionLessThan(String version1, String version2) {
return version1.compareTo(version2) < 0;
}
public static boolean is50OrHigher(String compliance) {
return !isVersionLessThan(compliance, JavaCore.VERSION_1_5);
}
public static boolean is50OrHigher(IJavaProject project) {
return is50OrHigher(project.getOption(JavaCore.COMPILER_COMPLIANCE, true));
}
public static boolean is50OrHigherJRE(IJavaProject project) throws CoreException {
IVMInstall vmInstall= JavaRuntime.getVMInstall(project);
if (!(vmInstall instanceof IVMInstall2))
return true; // assume 5.0.
String compliance= getCompilerCompliance((IVMInstall2) vmInstall, null);
if (compliance == null)
return true; // assume 5.0
return compliance.startsWith(JavaCore.VERSION_1_5) || compliance.startsWith(JavaCore.VERSION_1_6);
}
public static String getCompilerCompliance(IVMInstall2 vMInstall, String defaultCompliance) {
String version= vMInstall.getJavaVersion();
if (version == null) {
return defaultCompliance;
} else if (version.startsWith(JavaCore.VERSION_1_6)) {
return JavaCore.VERSION_1_6;
} else if (version.startsWith(JavaCore.VERSION_1_5)) {
return JavaCore.VERSION_1_5;
} else if (version.startsWith(JavaCore.VERSION_1_4)) {
return JavaCore.VERSION_1_4;
} else if (version.startsWith(JavaCore.VERSION_1_3)) {
return JavaCore.VERSION_1_3;
} else if (version.startsWith(JavaCore.VERSION_1_2)) {
return JavaCore.VERSION_1_3;
} else if (version.startsWith(JavaCore.VERSION_1_1)) {
return JavaCore.VERSION_1_3;
}
return defaultCompliance;
}
/**
* Compute a new name for a compilation unit, given the name of the new main type.
* This query tries to maintain the existing extension (e.g. ".java").
*
* @param cu a compilation unit
* @param newMainName the new name of the cu's main type (without extension)
* @return the new name for the compilation unit
*/
public static String getRenamedCUName(ICompilationUnit cu, String newMainName) {
String oldName = cu.getElementName();
int i = oldName.lastIndexOf('.');
if (i != -1) {
return newMainName + oldName.substring(i);
}
return newMainName;
}
public static boolean isImplicitImport(String qualifier, ICompilationUnit cu) {
if ("java.lang".equals(qualifier)) { //$NON-NLS-1$
return true;
}
String packageName= cu.getParent().getElementName();
if (qualifier.equals(packageName)) {
return true;
}
String typeName= JavaCore.removeJavaLikeExtension(cu.getElementName());
String mainTypeName= JavaModelUtil.concatenateName(packageName, typeName);
return qualifier.equals(mainTypeName);
}
/**
* If <code>true</code>, then element can safely be cast to any of
* {@link IParent}, {@link IOpenable}, {@link ISourceReference}, or {@link ICodeAssist}.
* @param element
* @return <code>true</code> iff element is an {@link ICompilationUnit} or an {@link IClassFile}
*/
public static boolean isTypeContainerUnit(IJavaElement element) {
// workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=125504
return element instanceof ICompilationUnit || element instanceof IClassFile;
}
public static IJavaElement getTypeContainerUnit(IMember member) {
ICompilationUnit cu= member.getCompilationUnit();
if (cu != null)
return cu;
return member.getClassFile();
}
}