private List<Object> _read(String oldFile, FileLock fileLock) {
List<Object> temp1 = null;
tempFile = "" + UUID.randomUUID();
File file = FileUtil.openFile(tempPath, oldFile + ".data");
if (fileLock != null) {
temp1 = FileUtil.readObjectFromFile(file);
} else {
// 打印日志，输出，说明文件已经被打开，无法读取
}
objListSize = 0;
return temp1;
}
private void _add(Object pojo) {
if (tempPath == null) tempPath = "data" + File.separator + key;
if (tempFile == null) {
tempFile = "" + UUID.randomUUID();
}
// 创建一个lock文件
File lockFile = FileUtil.openFile(tempPath, tempFile + ".lock");
// 将文件加锁
FileLock fileLock = FileUtil.tryLockFile(lockFile);
if (fileLock == null) {
tempFile = "" + UUID.randomUUID();
lockFile = FileUtil.openFile(tempPath, tempFile + ".lock");
fileLock = FileUtil.tryLockFile(lockFile);
}
// 将temp文件打开
File file = FileUtil.openFile(tempPath, tempFile + ".data");
FileUtil.writeObjectToFile(pojo, file, true);
// 存储完毕，将文件解锁
FileUtil.unlockFile(fileLock);
objListSize++;
}
private void _doBatchUpdate() {
if (log.isDebugEnabled()) log.debug("Start Executing Dao,key=" + key + ",sql=" + sql);
int[] result = null;
long time0 = System.currentTimeMillis();
List<Object> temp1 = null;
List<Object[]> temp2 = null;
String oldFile = tempFile;
FileLock fileLock = null;
synchronized (objListLock) {
if (objListSize > 0 || objList.size() > 0) {
if (AsyncService.isFileCache) {
File lockFile = FileUtil.openFile(tempPath, oldFile + ".lock");
fileLock = FileUtil.tryLockFile(lockFile);
temp1 = _read(oldFile, fileLock);
} else {
temp1 = objList;
objList = new ArrayList<Object>();
}
} else if (paramArrayList.size() > 0) {
temp2 = paramArrayList;
paramArrayList = new ArrayList<Object[]>();
}
}
if (null != temp1) {
result = batchUpdateByPojo(sql, temp1);
if (log.isInfoEnabled()) {
long timeTake = System.currentTimeMillis() - time0;
if (timeTake > 1000) // 批量保存任务超过1秒打印信息
log.info("key=" + key + ",Success Count=" + result.length + ",Use Millisecond=" + timeTake);
tracer.trace("key=" + key + ",batchUpdate takes(milliseconds):" + timeTake);
}
if (null != sqlAlt) {
List<Object> listAlt = new ArrayList<Object>();
for (int i = 0; i < result.length; i++) {
if (result[i] <= 0) {
listAlt.add(temp1.get(i));
}
}
if (listAlt.size() > 0) batchUpdateByPojo(sqlAlt, listAlt);
}
lastIoTime = System.currentTimeMillis();
if (AsyncService.isFileCache) {
FileUtil.deleteFile(tempPath, oldFile + ".data");
FileUtil.unlockFile(fileLock);
FileUtil.deleteFile(tempPath, oldFile + ".lock");
}
} else if (null != temp2) {
result = batchUpdateByParams(sql, temp2);
if (log.isInfoEnabled()) {
long timeTake = System.currentTimeMillis() - time0;
if (timeTake > 1000) // 批量保存任务超过1秒打印信息
log.info("key=" + key + ",Success Count=" + result.length + ",Use Millisecond=" + timeTake);
tracer.trace("key=" + key + ",batchUpdate takes(milliseconds):" + timeTake);
}
if (null != sqlAlt) {
List<Object[]> listAlt = new ArrayList<Object[]>();
for (int i = 0; i < result.length; i++) {
if (result[i] <= 0) {
listAlt.add(temp2.get(i));
}
}
if (listAlt.size() > 0) batchUpdateByParams(sqlAlt, listAlt);
}
lastIoTime = System.currentTimeMillis();
}
}
