if (getOwningTarget() == null
|| !"".equals(getOwningTarget().getName())) {
throw new BuildException("import only allowed as a top-level task");
}
ProjectHelper helper =
(ProjectHelper) getProject().
getReference(ProjectHelper.PROJECTHELPER_REFERENCE);
if (helper == null) {
// this happens if the projecthelper was not registered with the project.
throw new BuildException("import requires support in ProjectHelper");
}
Vector importStack = helper.getImportStack();
if (importStack.size() == 0) {
// this happens if ant is used with a project
// helper that doesn't set the import.
throw new BuildException("import requires support in ProjectHelper");
}
if (getLocation() == null || getLocation().getFileName() == null) {
throw new BuildException("Unable to get location of import task");
}
File buildFile = new File(getLocation().getFileName()).getAbsoluteFile();
// Paths are relative to the build file they're imported from,
// *not* the current directory (same as entity includes).
File buildFileParent = new File(buildFile.getParent());
File importedFile = FILE_UTILS.resolveFile(buildFileParent, file);
getProject().log("Importing file " + importedFile + " from "
+ buildFile.getAbsolutePath(), Project.MSG_VERBOSE);
if (!importedFile.exists()) {
String message =
"Cannot find " + file + " imported from "
+ buildFile.getAbsolutePath();
if (optional) {
getProject().log(message, Project.MSG_VERBOSE);
return;
} else {
throw new BuildException(message);
}
}
if (importStack.contains(importedFile)) {
getProject().log(
"Skipped already imported file:\n "
+ importedFile + "\n", Project.MSG_VERBOSE);
return;
}
try {
helper.parse(getProject(), importedFile);
} catch (BuildException ex) {
throw ProjectHelper.addLocationToBuildException(
ex, getLocation());
}
}