com.qiniu.datasource.DatasourceActor Maven / Gradle / Ivy
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qiniu-suits is a efficient tools for qiniu api implemented by java8.
package com.qiniu.datasource;
import com.qiniu.interfaces.*;
import com.qiniu.persistence.FileSaveMapper;
import com.qiniu.util.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import sun.misc.Signal;
import sun.misc.SignalHandler;
import java.io.File;
import java.io.IOException;
import java.time.Clock;
import java.time.LocalDateTime;
import java.util.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.AtomicLong;
import static com.qiniu.entry.CommonParams.lineFormats;
public abstract class DatasourceActor {
protected static final File errorLogFile = new File(String.join(".", LogUtils.getLogPath(LogUtils.QSUITS), LogUtils.ERROR));
protected static final File infoLogFile = new File(String.join(".", LogUtils.getLogPath(LogUtils.QSUITS), LogUtils.INFO));
protected static final File procedureLogFile = new File(String.join(".", LogUtils.getLogPath(LogUtils.PROCEDURE), LogUtils.LOG_EXT));
protected static final Logger rootLogger = LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
protected static final Logger errorLogger = LoggerFactory.getLogger(LogUtils.ERROR);
protected static final Logger infoLogger = LoggerFactory.getLogger(LogUtils.INFO);
protected static final Logger procedureLogger = LoggerFactory.getLogger(LogUtils.PROCEDURE);
protected int unitLen;
protected int threads;
protected int retryTimes = 5;
protected boolean saveTotal;
protected String savePath;
protected String saveFormat;
protected String saveSeparator;
protected Map indexMap;
protected List rmFields;
protected List fields;
protected ExecutorService executorPool; // 线程池
protected ConcurrentMap saverMap;
protected ConcurrentMap processorMap;
protected boolean stopped;
protected int countInterval;
protected AtomicLong statistics;
protected ConcurrentMap progressMap;
protected String breakpointFileName;
protected FileSaveMapper breakpointSaver;
public DatasourceActor(int unitLen, int threads) throws IOException {
if (unitLen <= 1) throw new IOException("unitLen must bigger than 1.");
this.unitLen = unitLen;
this.threads = threads;
saverMap = new ConcurrentHashMap<>(threads);
processorMap = new ConcurrentHashMap<>(threads);
countInterval = 300;
statistics = new AtomicLong(0);
progressMap = new ConcurrentHashMap<>(threads);
}
public void setSaveOptions(boolean saveTotal, String savePath, String format, String separator, List rmFields)
throws IOException {
this.saveTotal = saveTotal;
if (this.savePath != null && !"".equals(this.savePath)) {
breakpointSaver.closeWriters();
File file = new File(breakpointFileName + ".json");
boolean success = file.delete();
if (!success) success = file.delete();
}
this.savePath = savePath;
this.saveFormat = format;
if (!lineFormats.contains(saveFormat)) throw new IOException("please check your format for map to string.");
this.saveSeparator = separator;
this.rmFields = rmFields;
if (rmFields != null && rmFields.size() > 0) {
this.fields = ConvertingUtils.getFields(fields, rmFields);
}
String path = new File(savePath).getCanonicalPath();
breakpointSaver = new FileSaveMapper(new File(path).getParent());
breakpointSaver.setAppend(false);
breakpointSaver.setFileExt(".json");
breakpointFileName = path.substring(path.lastIndexOf(FileUtils.pathSeparator) + 1);
breakpointSaver.addWriter(breakpointFileName);
}
public void setRetryTimes(int retryTimes) {
this.retryTimes = retryTimes < 1 ? 5 : retryTimes;
}
void recordLister(String key, String record) {
progressMap.put(key, record);
try { FileUtils.createIfNotExists(procedureLogFile); } catch (IOException ignored) {}
procedureLogger.info("{}-|-{}", key, record);
}
void refreshRecordAndStatistics() {
rootLogger.info("finished count: {}.", statistics.get());
if (procedureLogFile.length() > 536870912) { // 超过 512M 就处理一次
try {
breakpointSaver.clear(breakpointFileName);
breakpointSaver.writeToKey(breakpointFileName, JsonUtils.toJsonWithoutUrlEscape(progressMap), true);
procedureLogFile.delete();
} catch (IOException e) {
errorLogger.info("record breakpoint failed", e);
}
}
}
void sleep(long millis) {
try {
Thread.sleep(millis);
} catch (InterruptedException ignored) {
int i = 0;
while (i < millis) i++;
}
}
void endAction() throws IOException {
ILineProcess processor;
for (Map.Entry saverEntry : saverMap.entrySet()) {
saverEntry.getValue().closeWriters();
processor = processorMap.get(saverEntry.getKey());
if (processor != null) processor.cancel();
}
String record = "{}";
if (progressMap.size() > 0) {
record = JsonUtils.toJsonWithoutUrlEscape(progressMap);
breakpointSaver.writeToKey(breakpointFileName, record, true);
breakpointSaver.closeWriters();
rootLogger.info("please check the lines breakpoint in {}.json, it can be used for one more time reading " +
"remained lines", breakpointFileName);
} else {
breakpointSaver.closeWriters();
File file = new File(breakpointFileName + ".json");
if (!file.delete()) file.delete();
}
procedureLogger.info(record);
}
void showdownHook() {
SignalHandler handler = signal -> {
rootLogger.info(signal.toString());
try {
stopped = true;
endAction();
} catch (IOException e) {
rootLogger.error("showdown error", e);
}
System.exit(0);
};
try { // 设置 INT 信号 (Ctrl + C 中断执行) 交给指定的信号处理器处理，废掉系统自带的功能
Signal.handle(new Signal("INT"), handler); } catch (Exception ignored) {}
try { Signal.handle(new Signal("TERM"), handler); } catch (Exception ignored) {}
try { Signal.handle(new Signal("USR1"), handler); } catch (Exception ignored) {}
try { Signal.handle(new Signal("USR2"), handler); } catch (Exception ignored) {}
}
protected abstract void export() throws Exception;
final Object object = new Object();
LocalDateTime pauseDateTime = LocalDateTime.MAX;
public void export(LocalDateTime startTime, long pauseDelay, long duration) throws Exception {
if (startTime != null) {
Clock clock = Clock.systemDefaultZone();
LocalDateTime now = LocalDateTime.now(clock);
if (startTime.minusWeeks(1).isAfter(now)) {
throw new Exception("startTime is not allowed to exceed next week");
}
while (now.isBefore(startTime)) {
System.out.printf("\r%s", LocalDateTime.now(clock).toString().substring(0, 19));
sleep(1000);
now = LocalDateTime.now(clock);
}
}
if (duration <= 0 || pauseDelay < 0) {
export();
} else if (duration > 84600 || duration < 1800) {
throw new Exception("duration can not be bigger than 23.5 hours or smaller than 0.5 hours.");
} else {
pauseDateTime = LocalDateTime.now().plusSeconds(pauseDelay);
Timer timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
synchronized (object) {
object.notifyAll();
}
pauseDateTime = LocalDateTime.now().plusSeconds(86400 - duration);
// pauseDateTime = LocalDateTime.now().plusSeconds(20 - duration);
}
}, (pauseDelay + duration) * 1000, 86400000);
// }, (pauseDelay + duration) * 1000, 20000);
export();
timer.cancel();
}
}
}