Java RequestLogs类代码示例

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
/**
 * Returns true if the given request is currently running.
 *
 * @see <a href="https://cloud.google.com/appengine/docs/standard/java/javadoc/com/google/appengine/api/log/LogQuery">appengine documentation</a>
 */
@Override
public boolean isRunning(String requestLogId) {
  RequestLogs requestLogs =
      Iterables.getOnlyElement(
          logService.fetch(
              LogQuery.Builder
                  .withRequestIds(Collections.singletonList(requestLogId))
                  .includeAppLogs(false)
                  .includeIncomplete(true)),
          null);
  // requestLogs will be null if that requestLogId isn't found at all, which can happen if the
  // request is too new (it can take several seconds until the logs are available for "fetch").
  // So we have to assume it's "running" in that case.
  if (requestLogs == null) {
    logger.infofmt(
        "Queried an unrecognized requestLogId %s - assume it's running", requestLogId);
    return true;
  }
  logger.infofmt(
      "Found logs for requestLogId %s - isFinished: %s", requestLogId, requestLogs.isFinished());
  return !requestLogs.isFinished();
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@GET
@Path("/pending")
@Produces("text/plain")
public String getMedianPendingTime() {

    LogService logService = LogServiceFactory.getLogService();
    LogQuery logQuery = LogQuery.Builder.withIncludeAppLogs(false)
            .startTimeMillis(System.currentTimeMillis() - TimeUnit.SECONDS.toMillis(60))
            .endTimeMillis(System.currentTimeMillis());


    StringBuilder content = new StringBuilder();
    content.append("request.id,loading,pending,latency,mcycles\n");
    Iterable<RequestLogs> logs = logService.fetch(logQuery);
    for (RequestLogs log : logs) {
        content.append(log.getRequestId()).append(",");
        content.append(log.isLoadingRequest() ? "TRUE" : "FALSE").append(",");
        content.append(log.getPendingTimeUsec()).append(",");
        content.append(log.getLatencyUsec()).append(",");
        content.append(log.getMcycles());
        content.append("\n");
    }
    return content.toString();
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
    throws ServletException, IOException {
  resp.setContentType("text/plain");
  if (req.getParameter("printLogs") != null) {
    LogService ls = LogServiceFactory.getLogService();
    LogQuery query = withIncludeAppLogs(true).minLogLevel(LogService.LogLevel.FATAL);
    for (RequestLogs logs : ls.fetch(query)) {
      for (AppLogLine logLine : logs.getAppLogLines()) {
        if (logLine.getLogLevel().equals(LogService.LogLevel.FATAL)) {
          resp.getWriter().println(logLine);
        }
      }
    }
  } else {
    Logger logger = Logger.getLogger("com.foo");
    resp.getWriter().println(logger.getLevel());
    Logger logger2 = Logger.getLogger("com.foo.bar");
    resp.getWriter().println(logger2.getLevel());
    resp.getWriter().println(configRan);
    logger2.severe("not null");
    logger2.severe((String)null);
  }
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@Override
public void processLog(RequestLogs log) {
	List<AppLogLine> logLines = log.getAppLogLines();
	if ( logLines == null || logLines.size() <= 0 )
		return;
	List<AppLogLineEntity> appLogs = new ArrayList<AppLogLineEntity>();
	
	LogLevel lvl = LogLevel.DEBUG;
	for (AppLogLine logLine : logLines )
	{
		if ( LEVEL_PRIORITY.get(lvl) < LEVEL_PRIORITY.get(logLine.getLogLevel()) )
		{
			lvl = logLine.getLogLevel();
		}
		
		AppLogLineEntity ent = new AppLogLineEntity();
		ent.setLogLevel(LEVEL_PRIORITY_NAME.get(lvl));
		ent.setLogMessage(logLine.getLogMessage());
		ent.setTimeUsec(logLine.getTimeUsec());
		
		appLogs.add(ent);
	}
	
	level = LEVEL_PRIORITY_NAME.get(lvl);
	logs = new Gson().toJson(appLogs);
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@Test
@InSequence(20)
public void testStartAndEndTimeUsec() throws Exception {
    RequestLogs requestLogs1 = getRequestLogs1();

    long time1 = getTime(1);
    long time2 = getTime(2);
    long startTimeUsec = requestLogs1.getStartTimeUsec();
    assertTrue("expected startTimeUsec to be >= " + time1 + ", but was " + startTimeUsec, startTimeUsec >= time1);
    assertTrue("expected startTimeUsec to be <= " + time2 + ", but was " + startTimeUsec, startTimeUsec <= time2);

    long endTimeUsec = requestLogs1.getEndTimeUsec();
    assertTrue("expected endTimeUsec to be >= " + time1 + ", but was " + endTimeUsec, endTimeUsec >= time1);
    assertTrue("expected endTimeUsec to be <= " + time2 + ", but was " + endTimeUsec, endTimeUsec <= time2);

    assertTrue("expected endTimeUsec to be more than startTimeUsec, but it wasn't (startTime was " + startTimeUsec + "; endTime was " + endTimeUsec, startTimeUsec < endTimeUsec);
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
/**
 * These could return different values from the implementations so just assert the basics.
 */
@Test
@InSequence(20)
public void testMiscProperties() throws Exception {
    RequestLogs logs = getRequestLogs1();

    assertNotNull("App Engine Release, e.g. 1.8.0, or empty string.", logs.getAppEngineRelease());
    assertTrue("Estimated cost of this request, in dollars.", logs.getCost() >= 0.0);
    assertTrue("Time required to process this request in microseconds.", logs.getLatencyUsec() >= 0);
    assertTrue("Microseconds request spent in pending request queue, if was pending at all.", logs.getPendingTimeUsec() >= 0);
    assertFalse("This should never be a loading request: " + logs.toString(), logs.isLoadingRequest());

    String appId = SystemProperty.applicationId.get();  // appIds have a prefix according to datacenter.
    assertTrue("The application ID that handled this request.", logs.getAppId().endsWith(appId));

    long cycles = logs.getMcycles();
    assertTrue("Number of machine cycles used to process this request: " + cycles, cycles >= 0);

    String getOffsetMsg = "Base64-encoded offset used with subsequent LogQuery to continue reading logs at the point in time immediately following this request.";
    assertNotNull(getOffsetMsg, logs.getOffset());
    assertTrue("Should be Base64: " + logs.getOffset(), Base64.isBase64(logs.getOffset().getBytes()));

    String mapEntryMsg = "File or class within the URL mapping used for this request: " + logs.getUrlMapEntry();
    assertNotNull(mapEntryMsg, logs.getUrlMapEntry());
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@Test
@InSequence(20)
public void testRequestLogsAreSortedNewestFirst() throws EntityNotFoundException {
    LogQuery query = new LogQuery().startTimeMillis(System.currentTimeMillis() - 60000);
    Iterator<RequestLogs> iterator = findLogLine(query, 3);

    Long previousEndTimeUsec = null;
    while (iterator.hasNext()) {
        RequestLogs requestLogs = iterator.next();
        long endTimeUsec = requestLogs.getEndTimeUsec();
        if (previousEndTimeUsec != null) {
            assertTrue(
                "RequestLogs with endTimeUsec " + endTimeUsec + " was returned after RequestLogs with endTimeUsec " + previousEndTimeUsec,
                previousEndTimeUsec >= endTimeUsec);
        }
        previousEndTimeUsec = endTimeUsec;
    }
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@Test
@InSequence(20)
public void testRequestIds() throws Exception {
    LogService service = LogServiceFactory.getLogService();

    LogQuery logQuery = new LogQuery().requestIds(Arrays.asList(request1Id, request2Id));
    Iterator<RequestLogs> iterator = service.fetch(logQuery).iterator();
    assertEquals(request1Id, iterator.next().getRequestId());
    assertEquals(request2Id, iterator.next().getRequestId());
    assertFalse(iterator.hasNext());

    logQuery = new LogQuery().requestIds(Arrays.asList(request2Id));
    iterator = service.fetch(logQuery).iterator();
    assertEquals(request2Id, iterator.next().getRequestId());
    assertFalse(iterator.hasNext());
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@Test
public void testLogLinesAreReturnedInSameOrderAsTheyAreLogged() {
    String logMark = getTimeStampRandom();
    String msg1 = "msg 1 " + logMark;
    String msg2 = "msg 2 " + logMark;
    log.log(Level.INFO, msg1);
    log.log(Level.INFO, msg2);
    flush(log);
    sync(15000);

    RequestLogs requestLogs = getCurrentRequestLogs();
    Integer msg1Index = null;
    Integer msg2Index = null;
    int i = 0;
    for (AppLogLine appLogLine : requestLogs.getAppLogLines()) {
        if (appLogLine.getLogMessage().contains(msg1)) {
            msg1Index = i;
        } else if (appLogLine.getLogMessage().contains(msg2)) {
            msg2Index = i;
        }
        i++;
    }
    assertNotNull("1st log message not found in appLogLines", msg1Index);
    assertNotNull("2nd log message not found in appLogLines", msg2Index);
    assertTrue("Expected first logged message to come before second logged message", msg1Index < msg2Index);
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
public RequestLogs getCurrentRequestLogs() {
        LogQuery logQuery = new LogQuery()
            .includeAppLogs(true)
            .includeIncomplete(true)
            .startTimeMillis(System.currentTimeMillis() - 20000);
        for (RequestLogs requestLogs : LogServiceFactory.getLogService().fetch(logQuery)) {
            if (requestLogs.getRequestId().equals(getCurrentRequestId())) {
                return requestLogs;
            }
        }
        fail("Could not find RequestLogs for current request");
        return null;

//        not sure, why the following code throws LogServiceException: An error occurred retrieving logs from storage.
//        LogQuery logQuery = new LogQuery()
//            .includeAppLogs(true)
//            .requestIds(Collections.singletonList(getCurrentRequestId()));
//        Iterable<RequestLogs> iterable = LogServiceFactory.getLogService().fetch(logQuery);
//        assertTrue("Could not find RequestLogs for current request", iterable.iterator().hasNext());
//        return iterable.iterator().next();
    }
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@Test public void testIsRunning_notFinished() {
  RequestLogs requestLogs = new RequestLogs();
  requestLogs.setFinished(false);

  when(RequestStatusCheckerImpl.logService.fetch(expectedLogQuery("12345678")))
      .thenReturn(ImmutableList.of(requestLogs));

  assertThat(requestStatusChecker.isRunning("12345678")).isTrue();
  assertAboutLogs()
      .that(logHandler)
      .hasLogAtLevelWithMessage(Level.INFO, "isFinished: false");
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@Test public void testIsRunning_finished() {
  RequestLogs requestLogs = new RequestLogs();
  requestLogs.setFinished(true);

  when(RequestStatusCheckerImpl.logService.fetch(expectedLogQuery("12345678")))
      .thenReturn(ImmutableList.of(requestLogs));

  assertThat(requestStatusChecker.isRunning("12345678")).isFalse();
  assertAboutLogs()
      .that(logHandler)
      .hasLogAtLevelWithMessage(Level.INFO, "isFinished: true");
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
private List<AppLogLine> getErrorLogs() {
    LogService logService = LogServiceFactory.getLogService();

    long endTime = new Date().getTime();
    // Sets the range to 6 minutes to slightly overlap the 5 minute email timer
    long queryRange = 1000 * 60 * 6;
    long startTime = endTime - queryRange;

    LogQuery q = LogQuery.Builder.withDefaults()
                                 .includeAppLogs(true)
                                 .startTimeMillis(startTime)
                                 .endTimeMillis(endTime)
                                 .minLogLevel(LogLevel.ERROR);

    Iterable<RequestLogs> logs = logService.fetch(q);
    List<AppLogLine> errorLogs = new ArrayList<>();

    for (RequestLogs requestLogs : logs) {
        List<AppLogLine> logList = requestLogs.getAppLogLines();

        for (AppLogLine currentLog : logList) {
            LogLevel logLevel = currentLog.getLogLevel();

            if (LogLevel.FATAL == logLevel || LogLevel.ERROR == logLevel) {
                errorLogs.add(currentLog);
            }
        }
    }

    return errorLogs;
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
/**
 * Retrieves logs using the query.
 * @return logs fetched from server.
 */
public List<AppLogLine> fetchLogs(AdminLogQuery query) {
    List<AppLogLine> logs = new LinkedList<>();
    //fetch request log
    Iterable<RequestLogs> records = LogServiceFactory.getLogService().fetch(query.getQuery());
    for (RequestLogs record : records) {
        //fetch application log
        List<AppLogLine> appLogLines = record.getAppLogLines();
        logs.addAll(appLogLines);
    }
    return logs;
}
 

import com.google.appengine.api.log.RequestLogs; //导入依赖的package包/类
@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
  resp.setContentType("text/plain");

  PrintWriter writer = resp.getWriter();

  boolean applogs = true;
  if ("false".equals(req.getParameter("applogs"))) {
    applogs = false;
  }

  boolean combined = false;
  if ("true".equals(req.getParameter("combined"))) {
    combined = true;
  }

  LogQuery query = LogQuery.Builder.withIncludeAppLogs(true).includeIncomplete(true);
  for (RequestLogs record : LogServiceFactory.getLogService().fetch(query)) {
    Calendar cal = Calendar.getInstance();
    cal.setTimeInMillis(record.getStartTimeUsec() / 1000);

    writer.println(String.format("\nDate: %s", cal.getTime().toString()));
    if (combined) {
      writer.println("COMBINED:" + record.getCombined());
    } else {
      writer.println("URL: " + record.getResource());
      writer.println("");
    }
    if (applogs) {
      List<AppLogLine> appLogs = record.getAppLogLines();
      for (AppLogLine appLog : appLogs) {
        writer.println("[" + appLog.getLogLevel() + "] " + appLog.getLogMessage());
      }
    }
  }
}