liquibase.integration.servlet.LiquibaseStatusServlet Maven / Gradle / Ivy
package liquibase.integration.servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.LogRecord;
/**
* Servlet that can be registered via web.xml to view the log of the Liquibase run from the LiquibaseServletListener.
*/
public class LiquibaseStatusServlet extends HttpServlet {
private static final long serialVersionUID = 1092565349351848089L;
private static List liquibaseRunLog = new ArrayList<>();
public static synchronized void logMessage(LogRecord message) {
liquibaseRunLog.add(message);
}
@Override
protected void doGet(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException {
httpServletResponse.setContentType("text/html");
String logLevelToDisplay = httpServletRequest.getParameter("logLevel");
Level currentLevel = Level.INFO;
if (logLevelToDisplay != null) {
currentLevel = Level.parse(logLevelToDisplay);
}
PrintWriter writer = httpServletResponse.getWriter();
writer.println("");
writer.println("Liquibase Status ");
writer.println("");
if (liquibaseRunLog.isEmpty()) {
writer.println("Liquibase did not run");
} else {
writer.println("View level: " + getLevelLink(Level.SEVERE, currentLevel, httpServletRequest)
+ " " + getLevelLink(Level.WARNING, currentLevel, httpServletRequest)
+ " " + getLevelLink(Level.INFO, currentLevel, httpServletRequest)
+ " " + getLevelLink(Level.CONFIG, currentLevel, httpServletRequest)
+ " " + getLevelLink(Level.FINE, currentLevel, httpServletRequest)
+ " " + getLevelLink(Level.FINER, currentLevel, httpServletRequest)
+ " " + getLevelLink(Level.FINEST, currentLevel, httpServletRequest)
+ "");
writer.println("
");
writer.println("Liquibase started at " + DateFormat.getDateTimeInstance().format(new Date
(liquibaseRunLog.get(0).getMillis())));
writer.println("
");
writer.println("");
for (LogRecord record : liquibaseRunLog) {
if (record.getLevel().intValue() >= currentLevel.intValue()) {
writer.println(record.getLevel() + ": " + record.getMessage());
if (record.getThrown() != null) {
record.getThrown().printStackTrace(writer);
}
}
}
writer.println("");
writer.println("");
writer.println("");
writer.println("
");
writer.println("Liquibase finished at " + DateFormat.getDateTimeInstance().format(new Date
(liquibaseRunLog.get(liquibaseRunLog.size() - 1).getMillis())));
}
writer.println("");
writer.println("");
}
private String getLevelLink(Level level, Level currentLevel, HttpServletRequest request) {
if (currentLevel.equals(level)) {
return level.getName();
} else {
return "" + level.getName() + "";
}
}
}