// 参数为车站ID
// 所有相关的记录都将删除. ??????????????
public boolean deleteStationInfo(String stationName) {
SQLRequestMessage msg = new SQLRequestMessage();
msg.setCommandMode(Constants.MODE_CS_SYN_CLIENT);
// 从列车区段表District中获取车站ID等于stationID的所有区段的ID
List<String> districtIDList = new ArrayList<String>();
msg.setCommandType(Constants.TYPE_CLIENT_SQLQUERY);
msg.setDataBean("District");
String sqlStr =
"select * from District where District_startstationname='"
+ stationName
+ "' or District_endstationname='"
+ stationName
+ "'";
msg.setSql(sqlStr);
String paprams = "null";
msg.setParams(paprams);
String listString = synClientSupport.sqlMessageSend(msg);
if (listString == null) { // 此情况不会出现
districtIDList = null;
} else {
List<District> list = JsonUtil.getList4Json(listString, District.class);
if (list.size() <= 0) districtIDList = null;
else {
for (int i = 0; i < list.size(); i++) {
District data = (District) list.get(i);
districtIDList.add(data.getDistrict_name());
}
}
}
// 从列车表Train中获取车站ID等于stationID的所有车次的ID
List<String> trainIDList = new ArrayList<String>();
msg.setDataBean("Train");
sqlStr =
"select * from Train where Train_startstationname='"
+ stationName
+ "' or Train_endstationname='"
+ stationName
+ "'";
msg.setSql(sqlStr);
paprams = "null";
msg.setParams(paprams);
listString = synClientSupport.sqlMessageSend(msg);
if (listString == null) { // 此情况不会出现
trainIDList = null;
} else {
List<Train> list = JsonUtil.getList4Json(listString, Train.class);
if (list.size() <= 0) trainIDList = null;
else {
for (int i = 0; i < list.size(); i++) {
Train data = (Train) list.get(i);
trainIDList.add(data.getTrain_name());
}
}
}
// 批量删除
// 涉及到的表:Station, District Train StationDistrictRelation TrainDistrictRelation
int districtNumber = 0;
int trainNumber = 0;
if (districtIDList != null) districtNumber = districtIDList.size();
if (trainIDList != null) trainNumber = trainIDList.size();
String[] sqlArray = new String[5 + districtNumber * 2 + trainNumber];
int index = 0;
sqlArray[index++] = "delete from Station where Station_name='" + stationName + "'"; // number 1
sqlArray[index++] =
"delete from StationDistrictRelation where Station_name='" + stationName + "'"; // number 1
sqlArray[index++] =
"delete from Plan where Station_name='"
+ stationName
+ "' or Prestation_name='"
+ stationName
+ "'"; // number 1
if (districtIDList != null) {
sqlArray[index++] =
"delete from District where District_startstationname='"
+ stationName
+ "' or District_endstationname='"
+ stationName
+ "'"; // number 1
for (int i = 0; i < districtNumber; i++) { // number districtNumber*2
sqlArray[index++] =
"delete from StationDistrictRelation where District_name='"
+ districtIDList.get(i)
+ "'";
sqlArray[index++] =
"delete from TrainDistrictRelation where District_name='" + districtIDList.get(i) + "'";
}
}
if (trainIDList != null) {
sqlArray[index++] =
"delete from Train where Train_startstationname='"
+ stationName
+ "' or Train_endstationname='"
+ stationName
+ "'"; // number 1
for (int i = 0; i < trainNumber; i++) { // number trainNumber
sqlArray[index++] =
"delete from TrainDistrictRelation where Train_name='" + trainIDList.get(i) + "'";
}
}
msg.setCommandType(Constants.TYPE_CLIENT_SQLBATCHDELETE);
sqlStr = JsonUtil.array2json(sqlArray);
msg.setSql(sqlStr);
paprams = "null";
msg.setParams(paprams);
listString = synClientSupport.sqlMessageSend(msg); // 同步通信
if (listString == null) {
return false;
} else {
return true;
}
}
static int loadDist(int whseKount, int distWhseKount) {
int k = 0;
int t = 0;
try {
now = new java.util.Date();
if (outputFiles == true) {
out = new PrintWriter(new FileOutputStream(fileLocation + "district.csv"));
System.out.println("\nWriting District file to: " + fileLocation + "district.csv");
}
District district = new District();
t = (whseKount * distWhseKount);
System.out.println("\nStart District Data for " + t + " Dists @ " + now + " ...");
for (int w = 1; w <= whseKount; w++) {
for (int d = 1; d <= distWhseKount; d++) {
district.d_id = d;
district.d_w_id = w;
district.d_ytd = 30000;
// random within [0.0000 .. 0.2000]
district.d_tax = (float) ((jTPCCUtil.randomNumber(0, 2000, gen)) / 10000.0);
district.d_next_o_id = 3001;
district.d_name = jTPCCUtil.randomStr(jTPCCUtil.randomNumber(6, 10, gen));
district.d_street_1 = jTPCCUtil.randomStr(jTPCCUtil.randomNumber(10, 20, gen));
district.d_street_2 = jTPCCUtil.randomStr(jTPCCUtil.randomNumber(10, 20, gen));
district.d_city = jTPCCUtil.randomStr(jTPCCUtil.randomNumber(10, 20, gen));
district.d_state = jTPCCUtil.randomStr(3).toUpperCase();
district.d_zip = "123456789";
k++;
if (outputFiles == false) {
distPrepStmt.setLong(1, district.d_id);
distPrepStmt.setLong(2, district.d_w_id);
distPrepStmt.setDouble(3, district.d_ytd);
distPrepStmt.setDouble(4, district.d_tax);
distPrepStmt.setLong(5, district.d_next_o_id);
distPrepStmt.setString(6, district.d_name);
distPrepStmt.setString(7, district.d_street_1);
distPrepStmt.setString(8, district.d_street_2);
distPrepStmt.setString(9, district.d_city);
distPrepStmt.setString(10, district.d_state);
distPrepStmt.setString(11, district.d_zip);
distPrepStmt.executeUpdate();
} else {
String str = "";
str = str + district.d_id + ",";
str = str + district.d_w_id + ",";
str = str + district.d_ytd + ",";
str = str + district.d_tax + ",";
str = str + district.d_next_o_id + ",";
str = str + district.d_name + ",";
str = str + district.d_street_1 + ",";
str = str + district.d_street_2 + ",";
str = str + district.d_city + ",";
str = str + district.d_state + ",";
str = str + district.d_zip;
out.println(str);
}
} // end for [d]
} // end for [w]
long tmpTime = new java.util.Date().getTime();
String etStr =
" Elasped Time(ms): " + ((tmpTime - lastTimeMS) / 1000.000) + " ";
System.out.println(etStr.substring(0, 30) + " Writing record " + k + " of " + t);
lastTimeMS = tmpTime;
transCommit();
now = new java.util.Date();
System.out.println("End District Load @ " + now);
} catch (SQLException se) {
System.out.println(se.getMessage());
transRollback();
} catch (Exception e) {
e.printStackTrace();
transRollback();
}
return (k);
} // end loadDist()