private static boolean canSeeFocus(
IJavaElement focus, JavaProject javaProject, char[][][] focusQualifiedNames) {
try {
if (focus == null) return false;
if (focus.equals(javaProject)) return true;
if (focus instanceof JarPackageFragmentRoot) {
// focus is part of a jar
IPath focusPath = focus.getPath();
IClasspathEntry[] entries = javaProject.getExpandedClasspath();
for (int i = 0, length = entries.length; i < length; i++) {
IClasspathEntry entry = entries[i];
if (entry.getEntryKind() == IClasspathEntry.CPE_LIBRARY
&& entry.getPath().equals(focusPath)) return true;
}
return false;
}
// look for dependent projects
IPath focusPath = ((JavaProject) focus).getProject().getFullPath();
IClasspathEntry[] entries = javaProject.getExpandedClasspath();
for (int i = 0, length = entries.length; i < length; i++) {
IClasspathEntry entry = entries[i];
if (entry.getEntryKind() == IClasspathEntry.CPE_PROJECT
&& entry.getPath().equals(focusPath)) {
if (focusQualifiedNames
!= null) { // builder state is usable, hence use it to try to reduce project which can
// see the focus...
State projectState =
(State)
JavaModelManager.getJavaModelManager()
.getLastBuiltState(javaProject.getProject(), null);
if (projectState != null) {
Object[] values = projectState.getReferences().valueTable;
int vLength = values.length;
for (int j = 0; j < vLength; j++) {
if (values[j] == null) continue;
ReferenceCollection references = (ReferenceCollection) values[j];
if (references.includes(focusQualifiedNames, null, null)) {
return true;
}
}
return false;
}
}
return true;
}
}
return false;
} catch (JavaModelException e) {
return false;
}
}
private char[][][] getQualifiedNames(ObjectVector types) {
final int size = types.size;
char[][][] focusQualifiedNames = null;
IJavaElement javaElement = this.pattern.focus;
int index = 0;
while (javaElement != null && !(javaElement instanceof ITypeRoot)) {
javaElement = javaElement.getParent();
}
if (javaElement != null) {
IType primaryType = ((ITypeRoot) javaElement).findPrimaryType();
if (primaryType != null) {
focusQualifiedNames = new char[size + 1][][];
focusQualifiedNames[index++] =
CharOperation.splitOn('.', primaryType.getFullyQualifiedName().toCharArray());
}
}
if (focusQualifiedNames == null) {
focusQualifiedNames = new char[size][][];
}
for (int i = 0; i < size; i++) {
focusQualifiedNames[index++] =
CharOperation.splitOn(
'.', ((IType) (types.elementAt(i))).getFullyQualifiedName().toCharArray());
}
return focusQualifiedNames.length == 0
? null
: ReferenceCollection.internQualifiedNames(focusQualifiedNames, true);
}