/**
* Returns a list of SPDX Standard License ID's that match the text provided using the SPDX
* matching guidelines.
*
* @param licenseText Text to compare to the standard license texts
* @return Array of SPDX standard license IDs that match
* @throws InvalidSPDXAnalysisException If an error occurs accessing the standard licenses
* @throws SpdxCompareException If an error occurs in the comparison
*/
public static String[] matchingStandardLicenseIds(String licenseText)
throws InvalidSPDXAnalysisException, SpdxCompareException {
String[] stdLicenseIds = LicenseInfoFactory.getSpdxListedLicenseIds();
List<String> matchingIds = Lists.newArrayList();
for (String stdLicId : stdLicenseIds) {
SpdxListedLicense license = LicenseInfoFactory.getListedLicenseById(stdLicId);
if (isTextStandardLicense(license, licenseText)) {
matchingIds.add(license.getLicenseId());
}
}
return matchingIds.toArray(new String[matchingIds.size()]);
}
/**
* Compares license text to the license text of an SPDX Standard License
*
* @param license SPDX Standard License to compare
* @param compareText Text to compare to the standard license
* @return True if the license text is the same per the license matching guidelines
* @throws SpdxCompareException
*/
public static boolean isTextStandardLicense(SpdxListedLicense license, String compareText)
throws SpdxCompareException {
String licenseTemplate = license.getStandardLicenseTemplate();
if (licenseTemplate == null || licenseTemplate.trim().isEmpty()) {
return isLicenseTextEquivalent(license.getLicenseText(), compareText);
}
CompareTemplateOutputHandler compareTemplateOutputHandler =
new CompareTemplateOutputHandler(compareText);
try {
SpdxLicenseTemplateHelper.parseTemplate(licenseTemplate, compareTemplateOutputHandler);
} catch (LicenseTemplateRuleException e) {
throw (new SpdxCompareException(
"Invalid template rule found during compare: " + e.getMessage(), e));
}
return compareTemplateOutputHandler.matches();
}