com.scudata.dm.Env Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of esproc Show documentation
Show all versions of esproc Show documentation
SPL(Structured Process Language) A programming language specially for structured data computing.
The newest version!
package com.scudata.dm;
import java.io.File;
import java.io.InputStream;
import java.net.URL;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletContext;
import com.scudata.common.DateFormatFactory;
import com.scudata.common.IOUtils;
import com.scudata.common.ISessionFactory;
import com.scudata.common.Logger;
import com.scudata.expression.Expression;
/**
* ȫ?ֻ???????
* @author WangXiaoJun
*
*/
public class Env {
private static ParamList paramList = new ParamList(); // ???ȫ?̱???
private static Map dbsfs;
private static String mainPath; // ??Ŀ¼
private static String tempPath; // ??ʱĿ¼
private static String[] paths; // dfx????Ŀ¼
private static String defCharsetName = System.getProperty("file.encoding"); // "GBK"
// UTF-8
//private static String localHost;
//private static int localPort;
private static int parallel = (Runtime.getRuntime().availableProcessors()+1)/2;
private static int csParallel = (Runtime.getRuntime().availableProcessors()+1)/2;
public static int FILE_BUFSIZE = 1024 * 64; // ???ļ?ʱ??Ĭ?ϻ???????С
public static int DEFAULT_HASHCAPACITY = 204047; // ?α??????????Ĭ?Ϲ?ϣ????????????ѡ??????
public static int MAX_HASHCAPACITY = 10445899; // ?α??????????????ϣ??????
public static final int INITGROUPSIZE = 8191; // ???????ij?ʼ??С
public static int BLOCK_SIZE = 1024 * 1024; // ?ļ??????С????С4096??2^n??n>=16
// ȱʧֵ???壬?????ִ?Сд???Ǵ?????ʱ?????ͳ?null
private static String[] nullStrings = new String[] { "nan", "null", "n/a" };
// ?Ƿ??Ǩע???еĵ?Ԫ??
private static boolean adjustNoteCell = true;
private static String DEFAULT_TASK = "_default_task_";
private static Map areaNo = Collections.synchronizedMap(new HashMap());
private static ServletContext sc = null;
private static Comparator unicodeCollator = new Comparator() {
public int compare(String o1, String o2) {
return o1.compareTo(o2);
}
};
private Env() {
}
/**
* ??ȡ????j?ĵ??ڴ?????
* @param j ????????
* @return ?ڴ?????,?ڴ????Ų?????ʱ??????null
*/
public static Integer getAreaNo(String j) {
if(j==null){
j = DEFAULT_TASK;
}
return areaNo.get(j);
}
/**
* ????????j???ڴ?????Ϊi
* @param j ????????
* @param i ?ڴ?????
*/
public static void setAreaNo(String j, int i) {
if(j==null){
j = DEFAULT_TASK;
}
if(i==0){
areaNo.remove(j);
}else{
areaNo.put(j, i);
}
}
/**
* ??ȡ?ڴ?????ӳ???
* @return ӳ???
*/
public static Map getAreaNo(){
return areaNo;
}
/**
* ???ز????б?
*
* @return ParamList
*/
public static ParamList getParamList() {
return paramList;
}
/**
* ??????ȡ????
*
* @param name ??????
* @return DataStruct
*/
public static Param getParam(String name) {
synchronized (paramList) {
return paramList.get(name);
}
}
/**
* ???ӱ???
*
* @param param ????
*/
public static void addParam(Param param) {
synchronized (paramList) {
paramList.add(param);
}
}
/**
* ??????ɾ??????
*
* @param name String
* @return Param
*/
public static Param removeParam(String name) {
synchronized (paramList) {
return paramList.remove(name);
}
}
/**
* ɾ?????б???
*/
public static void clearParam() {
areaNo.clear();
synchronized (paramList) {
paramList.clear();
}
}
/**
* ???ñ?????ֵ????????????????????һ??
*
* @param name String ??????
* @param value Object ????ֵ
*/
public static void setParamValue(String name, Object value) {
synchronized (paramList) {
Param p = paramList.get(name);
if (p == null) {
paramList.add(new Param(name, Param.VAR, value));
} else {
p.setValue(value);
}
}
}
// ????ס?????ټ???x??Ϊ??֧??ͬ????env(v,v+n)
public static Object setParamValue(String name, Expression x, Context ctx) {
Param p;
synchronized (paramList) {
p = paramList.get(name);
if (p == null) {
p = new Param(name, Param.VAR, null);
paramList.add(p);
}
}
synchronized(p) {
Object value = x.calculate(ctx);
p.setValue(value);
return value;
}
}
/**
* ????Ĭ???ַ???????
*
* @param name String
*/
public static void setDefaultChartsetName(String name) {
defCharsetName = name;
}
/**
* ????Ĭ???ַ???????
*
* @return String
*/
public static String getDefaultCharsetName() {
return defCharsetName;
}
/**
* ??????Ŀ¼
*
* @param path String
*/
public static void setMainPath(String path) {
mainPath = path;
}
/**
* ??????Ŀ¼
*
* @return String
*/
public static String getMainPath() {
return mainPath;
}
/**
* ??????ʱĿ¼
*
* @param path
* String
*/
public static void setTempPath(String path) {
tempPath = path;
}
/**
* ??????ʱĿ¼
*
* @return String
*/
public static String getTempPath() {
return tempPath;
}
/**
* ȡ??һ????ʱ?ļ???
* ??ʱ?ļ????ļ???ΪRQT+??ǰ????ʱ?䣬??չ??Ϊ???????(Ŀ???ǰѲ?ͬ???͵??ļ??ֿ????Է??????)
* @param exName ??ʱ?ļ???չ??(?????????)
* @return ????һ????ʱ?ļ???·????
*/
public static String getTempPathName(String exName) {
Date date = new Date();
String resPath = new String();
if (null != getTempPath())
resPath += getTempPath();
String temp = date.toString();
temp = temp.replaceAll(":", "");
temp = temp.replaceAll(" ", "");
resPath += temp;
return resPath+'.'+exName;
}
public static String[] getPaths() {
return paths;
}
public static void setPaths(String[] paths) {
Env.paths = paths;
}
/**
* ??ȡ???ݿ????ӹ???
*
* @param name String ???ݿ?????
* @return ISessionFactory ???ݿ????ӹ???
*/
public static ISessionFactory getDBSessionFactory(String name) {
if (dbsfs == null)
return null;
return dbsfs.get(name);
}
/**
* ???????ݿ????ӹ???
*
* @param name String ???ݿ?????
* @param sf ISessionFactory ???ݿ????ӹ???
*/
public static void setDBSessionFactory(String name, ISessionFactory sf) {
if (dbsfs == null) {
dbsfs = new HashMap();
}
dbsfs.put(name, sf);
}
/**
* ??????ɾ?????ݿ????ӹ???
*
* @param name String
*/
public static void deleteDBSessionFactory(String name) {
if (dbsfs != null) {
dbsfs.remove(name);
}
}
/**
* ɾ?????е????ݿ????ӹ???
*/
public static void clearDBSessionFactories() {
if (dbsfs != null) {
dbsfs.clear();
}
}
/**
* ȡ???ݿ????ӹ???ӳ??
* @return
*/
public static Map getDBSessionFactories() {
return dbsfs;
}
/**
* ??ȡʱ???ʽ
*
* @return String ʱ???ʽ?趨
*/
public static String getTimeFormat() {
return DateFormatFactory.getDefaultTimeFormat();
}
/**
* ????ʱ???ʽ
*
* @param format String ʱ???ʽ?趨
*/
public static void setTimeFormat(String format) {
DateFormatFactory.setDefaultTimeFormat(format);
}
/**
* ??ȡ???ڸ?ʽ
*
* @return String ???ڸ?ʽ?趨
*/
public static String getDateFormat() {
return DateFormatFactory.getDefaultDateFormat();
}
/**
* ???????ڸ?ʽ
*
* @param format
* String ???ڸ?ʽ?趨
*/
public static void setDateFormat(String format) {
DateFormatFactory.setDefaultDateFormat(format);
}
/**
* ??ȡ????ʱ???ʽ
*
* @return String ????ʱ???ʽ?趨
*/
public static String getDateTimeFormat() {
return DateFormatFactory.getDefaultDateTimeFormat();
}
/**
* ????????ʱ???ʽ
*
* @param format String ????ʱ???ʽ?趨
*/
public static void setDateTimeFormat(String format) {
DateFormatFactory.setDefaultDateTimeFormat(format);
}
/**
* ???????ݱȽ???ʹ?õıȽ???
*
* @return Comparator
*/
public static Comparator getCollator() {
return unicodeCollator;
}
/**
* ȡ??д?ļ?????????С
*
* @return int
*/
public static int getFileBufSize() {
return FILE_BUFSIZE;
}
/**
* ȡ???ļ??鲢???ļ?????????С
*
* @param fcount int
* @return int
*/
public static int getMergeFileBufSize(int fcount) {
Runtime rt = Runtime.getRuntime();
long size = (rt.maxMemory() - rt.totalMemory() + rt.freeMemory() - 1024 * 1024 * 128)
/ fcount / 2;
if (size >= FILE_BUFSIZE)
return FILE_BUFSIZE;
int n = (int) size / 1024;
if (n > 1) {
return n * 1024;
} else {
return 1024;
}
}
/**
* ???ö?д?ļ?????????С
*
* @param size
* int
*/
public static void setFileBufSize(int size) {
if (size < 4096) {
FILE_BUFSIZE = 4096;
} else {
FILE_BUFSIZE = size;
}
}
/**
* ȡ??֪??????ʱ??Ĭ?Ϲ?ϣ??????
*
* @return int
*/
public static int getDefaultHashCapacity() {
return DEFAULT_HASHCAPACITY;
}
/**
* ????֪??????ʱ??Ĭ?Ϲ?ϣ??????
*
* @param n int
*/
public static void setDefaultHashCapacity(int n) {
DEFAULT_HASHCAPACITY = n;
}
public static int getMaxHashCapacity() {
return MAX_HASHCAPACITY;
}
public static void setMaxHashCapacity(int n) {
MAX_HASHCAPACITY = n;
}
/**
* ȡ?ʺϲ?????????????ͨ?????????߳???
* @return int
*/
public static int getParallelNum() {
return parallel > 1 ? parallel : 1;
}
/**
* ???ʺϲ?????
* @param num
*/
public static void setParallelNum(int num) {
parallel = num;
}
/**
* ȡȱʡ?Ķ?·?α?·???????ڲ?????·?α?
* @return
*/
public static int getCursorParallelNum() {
return csParallel > 1 ? csParallel : 1;
}
/**
* ????ȱʡ?Ķ?·?α?·??
* @param num
*/
public static void setCursorParallelNum(int num) {
csParallel = num;
}
/**
* ȡwebӦ????????
*/
public static ServletContext getApplication() {
return sc;
}
/**
* ????webӦ????????
*/
public static void setApplication(ServletContext app) {
sc = app;
}
/**
* ??webӦ???ﰴѰַ·??????ָ????Դ??URL
*/
public static URL getResourceFromApp(String fileName) {
if (sc == null)
return null;
URL u = null;
if (IOUtils.isAbsolutePath(fileName)) {
try {
return sc.getResource(fileName.replace('\\', '/'));
} catch (Exception e) {
return null;
}
}
if (paths != null) {
for (String path : paths) {
File f = new File(path, fileName);
try {
u = sc.getResource(f.getPath().replace('\\', '/'));
} catch (Exception e) {
}
if (u != null)
return u;
}// for
}// if paths
return null;
}
/**
* ??webӦ?û?ȡָ????Դ????????
*/
public static InputStream getStreamFromApp(String fileName) {
URL u = getResourceFromApp(fileName);
if (u == null)
return null;
try {
InputStream is = u.openStream();
Logger.debug(u);
return is;
} catch (Exception e) {
return null;
}
}
/**
* ȡ?ļ??????С
*
* @return
*/
public static int getBlockSize() {
return BLOCK_SIZE;
}
/**
* ?????ļ??????С
*
* @param int size 2^n??n>=16
*/
public static void setBlockSize(int size) {
BLOCK_SIZE = size;
}
/**
* ȡȱʧֵ???壬?????ִ?Сд???Ǵ?????ʱ?????ͳ?null
*
* @return
*/
public static String[] getNullStrings() {
return nullStrings;
}
/**
* ????ȱʧֵ???壬?????ִ?Сд???Ǵ?????ʱ?????ͳ?null
*
* @param nss
*/
public static void setNullStrings(String[] nss) {
nullStrings = nss;
}
/**
* ȡָ?????????ļ?
* @param partition ????
* @param name ?ļ???
* @return
*/
public static File getPartitionFile(int partition, String name) {
//String path = getMappingPath(partition);
//return new File(path, name);
FileObject fo = new FileObject(name);
fo.setPartition(partition);
return fo.getLocalFile().file();
}
/**
* ?Ƿ??Ǩע???еĴ?
* @return
*/
public static boolean isAdjustNoteCell() {
return adjustNoteCell;
}
/**
* ?????Ƿ??Ǩע???еĴ?
* @param adjustNoteCell
*/
public static void setAdjustNoteCell(boolean adjustNoteCell) {
Env.adjustNoteCell = adjustNoteCell;
}
}