@Override
public void execute() throws BuildException {
if (null == _from) throw new IllegalStateException("Missing 'from'.");
if (null == _to) throw new IllegalStateException("Missing 'to'.");
try {
final FailureHandler failureHandler = new FailureHandler();
new ApiDiff(failureHandler, _ignoreSettings, _from, _to, _platform.defaultConfig()).run();
if (failureHandler.failures() > 0) {
throw new BuildException(
"API surfaces do not match. " + format(failureHandler) + " been reported.",
getLocation());
}
} catch (IOException e) {
throw new BuildException(e, getLocation());
}
}
private String format(final FailureHandler failureHandler) {
final int failures = failureHandler.failures();
return failures == 1 ? "1 failure has" : failures + " failures have";
}