package by.stub.database.thread;
import by.stub.cli.ANSITerminal;
import by.stub.database.StubbedDataManager;
import by.stub.yaml.YamlParser;
import java.io.File;
import java.util.Date;
import java.util.Map;
import static by.stub.utils.FileUtils.BR;
/**
* @author Alexander Zagniotov
* @since 11/6/12, 8:01 AM
*/
public final class ExternalFilesScanner implements Runnable {
private final long sleepTime;
private final StubbedDataManager stubbedDataManager;
public ExternalFilesScanner(final StubbedDataManager stubbedDataManager, final long sleepTime) {
this.sleepTime = sleepTime;
this.stubbedDataManager = stubbedDataManager;
ANSITerminal.status(String.format("External file scan enabled, watching external files referenced from %s", stubbedDataManager.getYamlCanonicalPath()));
}
@Override
public void run() {
try {
final Map<File, Long> externalFiles = stubbedDataManager.getExternalFiles();
while (!Thread.currentThread().isInterrupted()) {
Thread.sleep(sleepTime);
boolean isContinue = true;
String offendingFilename = "";
for (Map.Entry<File, Long> entry : externalFiles.entrySet()) {
final File file = entry.getKey();
final long lastModified = entry.getValue();
final long currentFileModified = file.lastModified();
if (lastModified < currentFileModified) {
externalFiles.put(file, currentFileModified);
isContinue = false;
offendingFilename = file.getAbsolutePath();
break;
}
}
if (isContinue) {
continue;
}
ANSITerminal.info(String.format("%sExternal file scan detected change in %s%s", BR, offendingFilename, BR));
try {
stubbedDataManager.refreshStubbedData(new YamlParser());
ANSITerminal.ok(String.format("%sSuccessfully performed live refresh of main YAML with external files from: %s on [" + new Date().toString().trim() + "]%s",
BR,
stubbedDataManager.getDataYaml(),
BR));
} catch (final Exception ex) {
ANSITerminal.error("Could not refresh YAML configuration: " + ex.toString());
ANSITerminal.warn(String.format("YAML refresh aborted, previously loaded stubs remain untouched"));
}
}
} catch (final Exception ex) {
ex.printStackTrace();
ANSITerminal.error("Could not perform live YAML scan: " + ex.toString());
}
}
}