com.scudata.expression.FunctionLib Maven / Gradle / Ivy
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SPL(Structured Process Language) A programming language specially for structured data computing.
package com.scudata.expression;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.scudata.common.Logger;
import com.scudata.common.MessageManager;
import com.scudata.common.RQException;
import com.scudata.dm.Context;
import com.scudata.expression.operator.DotOperator;
import com.scudata.resources.EngineMessage;
import com.scudata.util.Properties;
import com.scudata.util.Property;
/**
* ?????⣬????ϵͳ?????ļ??غͲ???
*
* @author RunQian
*
*/
public final class FunctionLib {
// ????????ͬ????Ա???????????
private static class ClassLink {
Class fnClass; // ??Ա?????????
ClassLink next; // ??һ??ͬ???ij?Ա?????????
ClassLink(Class fnClass) {
this.fnClass = fnClass;
}
MemberFunction newInstance(String fnName)
throws InstantiationException, IllegalAccessException {
MemberFunction fn = fnClass.newInstance();
fn.setFunctionName(fnName);
if (next != null) {
MemberFunction nextFn = next.newInstance(fnName);
fn.setNextFunction(nextFn);
}
return fn;
}
}
// ȫ?ֺ???ӳ???
private static HashMap> fnMap = new HashMap>(
256);
// ??Ա????ӳ???
private static HashMap mfnMap = new HashMap(
256);
// ??????????ӳ?????[??????,??????·????]
private static HashMap dfxFnMap = new HashMap(
256);
private FunctionLib() {
}
static {
// ?Զ??庯???????Զ????أ??ṩ???????ϲ?????
loadSystemFunctions();
}
/**
* ???ӳ?????????
*
* @param fnName
* ??????
* @param dfxPathName
* ??????·????
*/
public static void addDFXFunction(String fnName, String dfxPathName) {
// ??????ȫ?ֺ???????
if (fnMap.containsKey(fnName)) {// || dfxFnMap.containsKey(fnName)
MessageManager mm = EngineMessage.get();
throw new RuntimeException(
mm.getMessage("FunctionLib.repeatedFunction") + fnName);
}
// ???º????滻?ɵ?
dfxFnMap.put(fnName, dfxPathName);
}
/**
* ɾ????????????
*
* @param fnName
* ??????
*/
public static void removeDFXFunction(String fnName) {
dfxFnMap.remove(fnName);
}
/**
* ???ݺ?????ȡ??????
*
* @param fnName
* ??????
* @return ??????·????
*/
public static String getDFXFunction(String fnName) {
return dfxFnMap.get(fnName);
}
/**
* ????ȫ?ֺ???
*
* @param fnName
* ??????
* @param className
* ????????????????
*/
public static void addFunction(String fnName, String className) {
try {
Class funClass = (Class) Class
.forName(className);
if (fnMap.containsKey(fnName)) {
MessageManager mm = EngineMessage.get();
throw new RuntimeException(
mm.getMessage("FunctionLib.repeatedFunction") + fnName);
}
fnMap.put(fnName, funClass);
} catch (Throwable e) {
throw new RQException(className, e);
}
}
/**
* ????ȫ?ֺ????????????쳣
*
* @param fnName
* ??????
* @param funClass
* ?????
*/
public static void addFunction(String fnName,
Class funClass) {
if (fnMap.containsKey(fnName)) {
MessageManager mm = EngineMessage.get();
throw new RuntimeException(
mm.getMessage("FunctionLib.repeatedFunction") + fnName);
}
fnMap.put(fnName, funClass);
}
/**
* ????ȫ?ֺ??????????滻?????Ķ?
*
* @param fnName
* ??????
* @param funClass
* ?????
* @param replace
* true???????滻??false???????????Ķ?
*/
public static void addFunction(String fnName, String className,
boolean replace) {
if (replace || !fnMap.containsKey(fnName)) {
try {
Class funClass = (Class) Class
.forName(className);
fnMap.put(fnName, funClass);
} catch (Throwable e) {
throw new RQException(className, e);
}
}
}
/**
* ?жϱ?ʶ???Ƿ???ȫ?ֺ?????
*
* @param id
* ??ʶ??
* @return true????ȫ?ֺ???????false??????ȫ?ֺ?????
*/
public static boolean isFnName(String id) {
return fnMap.containsKey(id);
}
/**
* ?ɺ?????????ȫ?ֺ???
*
* @param fnName
* ??????
* @return ????????Ӧ??ȫ?ֺ???
*/
public static Function newFunction(String fnName) {
try {
Class funClass = fnMap.get(fnName);
Function function = funClass.newInstance();
function.setFunctionName(fnName);
return function;
} catch (IllegalAccessException e) {
throw new RuntimeException(e.getMessage());
} catch (InstantiationException e) {
throw new RuntimeException(e.getMessage());
}
}
/**
* ???ӳ?Ա????
*
* @param fnName
* ??Ա??????
* @param className
* ????????????????
*/
public static void addMemberFunction(String fnName, String className) {
try {
Class fnClass = (Class) Class
.forName(className);
addMemberFunction(fnName, fnClass);
} catch (Throwable e) {
throw new RuntimeException(e.getMessage());
}
}
/**
* ???ӳ?Ա????
*
* @param fnName
* ??Ա??????
* @param fnClass
* ?????
*/
public static void addMemberFunction(String fnName,
Class fnClass) {
ClassLink prev = mfnMap.get(fnName);
ClassLink fnLink = new ClassLink(fnClass);
if (prev == null) {
mfnMap.put(fnName, fnLink);
} else {
while (prev.next != null) {
prev = prev.next;
}
prev.next = fnLink;
}
}
/**
* ?жϱ?ʶ???Ƿ??dz?Ա??????
*
* @param id
* ??ʶ??
* @return true???dz?Ա????????false?????dz?Ա??????
*/
public static boolean isMemberFnName(String id) {
return mfnMap.containsKey(id);
}
/**
* ?ɺ???????????Ա????
*
* @param fnName
* ??????
* @return ????????Ӧ?ij?Ա????
*/
public static MemberFunction newMemberFunction(String fnName) {
try {
ClassLink fnLink = mfnMap.get(fnName);
return fnLink.newInstance(fnName);
} catch (IllegalAccessException e) {
throw new RuntimeException(e.getMessage());
} catch (InstantiationException e) {
throw new RuntimeException(e.getMessage());
}
}
// ????ϵͳ????
private static void loadSystemFunctions() {
// ȫ?ֺ???
addFunction("between", "com.scudata.expression.fn.Between");
addFunction("case", "com.scudata.expression.fn.Case");
addFunction("cmp", "com.scudata.expression.fn.Compare");
addFunction("clipboard", "com.scudata.expression.fn.Clipboard");
addFunction("eval", "com.scudata.expression.fn.Eval");
addFunction("if", "com.scudata.expression.fn.If");
addFunction("to", "com.scudata.expression.fn.To");
addFunction("join", "com.scudata.expression.fn.Join");
addFunction("xjoin", "com.scudata.expression.fn.XJoin");
addFunction("create", "com.scudata.expression.fn.Create");
addFunction("new", "com.scudata.expression.fn.New");
addFunction("sum", "com.scudata.expression.fn.gather.Sum");
addFunction("avg", "com.scudata.expression.fn.gather.Average");
addFunction("max", "com.scudata.expression.fn.gather.Max");
addFunction("min", "com.scudata.expression.fn.gather.Min");
addFunction("maxp", "com.scudata.expression.fn.gather.Maxp");
addFunction("minp", "com.scudata.expression.fn.gather.Minp");
addFunction("cand", "com.scudata.expression.fn.Cand");
addFunction("cor", "com.scudata.expression.fn.Cor");
addFunction("top", "com.scudata.expression.fn.gather.Top");
addFunction("ifn", "com.scudata.expression.fn.Ifn");
addFunction("nvl", "com.scudata.expression.fn.Nvl");
addFunction("count", "com.scudata.expression.fn.gather.Count");
addFunction("func", "com.scudata.expression.fn.Func");
addFunction("call", "com.scudata.expression.fn.Call");
addFunction("register", "com.scudata.expression.fn.Register");
addFunction("arguments", "com.scudata.expression.fn.Arguments");
addFunction("env", "com.scudata.expression.fn.EnvSet");
addFunction("system", "com.scudata.expression.fn.SystemExec");
addFunction("output", "com.scudata.expression.fn.Output");
addFunction("jvm", "com.scudata.expression.fn.JVM");
addFunction("sleep", "com.scudata.expression.fn.Sleep");
addFunction("lock", "com.scudata.expression.fn.Lock");
addFunction("invoke", "com.scudata.expression.fn.Invoke");
addFunction("icount", "com.scudata.expression.fn.gather.ICount");
addFunction("mode", "com.scudata.expression.fn.Mode");
addFunction("median", "com.scudata.expression.fn.gather.Median");
addFunction("z", "com.scudata.expression.fn.ZSeq");
addFunction("ntile", "com.scudata.expression.fn.Ntile");
addFunction("iterate", "com.scudata.expression.fn.gather.Iterate");
addFunction("seq", "com.scudata.expression.fn.Seq");
addFunction("rank", "com.scudata.expression.fn.Rank");
addFunction("ranki", "com.scudata.expression.fn.Ranki");
addFunction("cum", "com.scudata.expression.fn.Cum");
addFunction("get", "com.scudata.expression.fn.Get");
addFunction("k", "com.scudata.expression.fn.CreateSerialBytes");
addFunction("range", "com.scudata.expression.fn.Range");
addFunction("blob", "com.scudata.expression.fn.Blob");
addFunction("jdbccall", "com.scudata.expression.fn.JDBCCall");
addFunction("splserver", "com.scudata.expression.fn.SplServer");
// ????
addFunction("callx", "com.scudata.expression.fn.parallel.Callx");
addFunction("hosts", "com.scudata.expression.fn.parallel.Hosts");
addFunction("syncfile", "com.scudata.expression.fn.parallel.SyncFile");
// addFunction("zone", "com.scudata.expression.fn.parallel.Zone");
// ???к???
addMemberFunction("step", "com.scudata.expression.mfn.sequence.Step");
addMemberFunction("inv", "com.scudata.expression.mfn.sequence.Inv");
addMemberFunction("p", "com.scudata.expression.mfn.sequence.PosConvert");
addMemberFunction("m", "com.scudata.expression.mfn.sequence.MGet");
addMemberFunction("eq", "com.scudata.expression.mfn.sequence.Eq");
addMemberFunction("count", "com.scudata.expression.mfn.sequence.Count");
addMemberFunction("len", "com.scudata.expression.mfn.sequence.Len");
// addMemberFunction("len", "com.scudata.expression.mfn.serial.Len");
addMemberFunction("sbs", "com.scudata.expression.mfn.serial.Sbs");
addMemberFunction("ifn", "com.scudata.expression.mfn.sequence.Ifn");
addMemberFunction("nvl", "com.scudata.expression.mfn.sequence.Nvl");
addMemberFunction("id", "com.scudata.expression.mfn.sequence.Id");
addMemberFunction("id", "com.scudata.expression.mfn.cursor.Id");
addMemberFunction("id", "com.scudata.expression.mfn.channel.Id");
addMemberFunction("sum", "com.scudata.expression.mfn.sequence.Sum");
addMemberFunction("cumulate",
"com.scudata.expression.mfn.sequence.Cumulate");
addMemberFunction("proportion",
"com.scudata.expression.mfn.sequence.Proportion");
addMemberFunction("icount",
"com.scudata.expression.mfn.sequence.ICount");
addMemberFunction("mode", "com.scudata.expression.mfn.sequence.Mode");
addMemberFunction("avg", "com.scudata.expression.mfn.sequence.Avg");
addMemberFunction("min", "com.scudata.expression.mfn.sequence.Min");
addMemberFunction("max", "com.scudata.expression.mfn.sequence.Max");
addMemberFunction("minp", "com.scudata.expression.mfn.sequence.Minp");
addMemberFunction("maxp", "com.scudata.expression.mfn.sequence.Maxp");
addMemberFunction("cand", "com.scudata.expression.mfn.sequence.Cand");
addMemberFunction("cor", "com.scudata.expression.mfn.sequence.Cor");
addMemberFunction("rank", "com.scudata.expression.mfn.sequence.Rank");
addMemberFunction("ranks", "com.scudata.expression.mfn.sequence.Ranks");
addMemberFunction("conj", "com.scudata.expression.mfn.sequence.Conj");
addMemberFunction("conj", "com.scudata.expression.mfn.op.AttachConj");
addMemberFunction("union", "com.scudata.expression.mfn.sequence.Union");
addMemberFunction("diff", "com.scudata.expression.mfn.sequence.Diff");
addMemberFunction("isect", "com.scudata.expression.mfn.sequence.Isect");
addMemberFunction("xunion",
"com.scudata.expression.mfn.sequence.Xunion");
addMemberFunction("merge", "com.scudata.expression.mfn.sequence.Merge");
addMemberFunction("run", "com.scudata.expression.mfn.sequence.Run");
addMemberFunction("run", "com.scudata.expression.mfn.op.AttachRun");
addMemberFunction("run", "com.scudata.expression.mfn.record.Run");
addMemberFunction("calc", "com.scudata.expression.mfn.sequence.Calc");
addMemberFunction("pos", "com.scudata.expression.mfn.sequence.Pos");
addMemberFunction("contain",
"com.scudata.expression.mfn.sequence.Contain");
addMemberFunction("pseg", "com.scudata.expression.mfn.sequence.PSeg");
addMemberFunction("segp", "com.scudata.expression.mfn.sequence.Segp");
addMemberFunction("pmin", "com.scudata.expression.mfn.sequence.PMin");
addMemberFunction("pmax", "com.scudata.expression.mfn.sequence.PMax");
addMemberFunction("ptop", "com.scudata.expression.mfn.sequence.PTop");
addMemberFunction("top", "com.scudata.expression.mfn.sequence.Top");
addMemberFunction("pselect",
"com.scudata.expression.mfn.sequence.PSelect");
addMemberFunction("psort", "com.scudata.expression.mfn.sequence.PSort");
addMemberFunction("select",
"com.scudata.expression.mfn.sequence.Select");
addMemberFunction("select",
"com.scudata.expression.mfn.op.AttachSelect");
addMemberFunction("sort", "com.scudata.expression.mfn.sequence.Sort");
addMemberFunction("sortx", "com.scudata.expression.mfn.sequence.Sortx");
addMemberFunction("rvs", "com.scudata.expression.mfn.sequence.Rvs");
addMemberFunction("swap", "com.scudata.expression.mfn.sequence.Swap");
addMemberFunction("shift", "com.scudata.expression.mfn.sequence.Shift");
addMemberFunction("pad", "com.scudata.expression.mfn.sequence.Pad");
addMemberFunction("lookup",
"com.scudata.expression.mfn.sequence.Lookup");
addMemberFunction("sumif", "com.scudata.expression.mfn.sequence.Sumif");
addMemberFunction("countif",
"com.scudata.expression.mfn.sequence.Countif");
addMemberFunction("avgif", "com.scudata.expression.mfn.sequence.Avgif");
addMemberFunction("minif", "com.scudata.expression.mfn.sequence.Minif");
addMemberFunction("maxif", "com.scudata.expression.mfn.sequence.Maxif");
addMemberFunction("iterate",
"com.scudata.expression.mfn.sequence.Iterate");
addMemberFunction("iterate",
"com.scudata.expression.mfn.cursor.Iterate");
addMemberFunction("iterate",
"com.scudata.expression.mfn.channel.Iterate");
addMemberFunction("fno", "com.scudata.expression.mfn.record.FieldNo");
addMemberFunction("fno", "com.scudata.expression.mfn.sequence.FieldNo");
addMemberFunction("field",
"com.scudata.expression.mfn.record.FieldValue");
addMemberFunction("field",
"com.scudata.expression.mfn.sequence.FieldValue");
addMemberFunction("fname",
"com.scudata.expression.mfn.record.FieldName");
addMemberFunction("fname",
"com.scudata.expression.mfn.sequence.FieldName");
addMemberFunction("to", "com.scudata.expression.mfn.sequence.To");
addMemberFunction("range", "com.scudata.expression.mfn.sequence.Range");
addMemberFunction("pivot", "com.scudata.expression.mfn.sequence.Pivot");
addMemberFunction("groupc",
"com.scudata.expression.mfn.sequence.Groupc");
addMemberFunction("r", "com.scudata.expression.mfn.RowField");
addMemberFunction("median",
"com.scudata.expression.mfn.sequence.Median");
addMemberFunction("bits", "com.scudata.expression.mfn.sequence.Bits");
// ?ڱ?????
addMemberFunction("icursor", "com.scudata.expression.mfn.table.Icursor");
addMemberFunction("ifind", "com.scudata.expression.mfn.table.Ifind");
addMemberFunction("memory", "com.scudata.expression.mfn.table.Memory");
// ??
addMemberFunction("modify",
"com.scudata.expression.mfn.sequence.Modify");
addMemberFunction("modify", "com.scudata.expression.mfn.record.Modify");
addMemberFunction("reset", "com.scudata.expression.mfn.sequence.Reset");
addMemberFunction("reset", "com.scudata.expression.mfn.cursor.Reset");
addMemberFunction("insert",
"com.scudata.expression.mfn.sequence.Insert");
addMemberFunction("delete",
"com.scudata.expression.mfn.sequence.Delete");
addMemberFunction("paste", "com.scudata.expression.mfn.table.Paste");
addMemberFunction("record",
"com.scudata.expression.mfn.sequence.RecordValue");
addMemberFunction("record",
"com.scudata.expression.mfn.record.RecordValue");
addMemberFunction("rename", "com.scudata.expression.mfn.table.Rename");
addMemberFunction("rename",
"com.scudata.expression.mfn.op.AttachRename");
addMemberFunction("rename", "com.scudata.expression.mfn.vdb.Rename");
addMemberFunction("alter", "com.scudata.expression.mfn.table.Alter");
addMemberFunction("alter", "com.scudata.expression.mfn.record.Alter");
// ????
addMemberFunction("create",
"com.scudata.expression.mfn.sequence.Create");
addMemberFunction("create", "com.scudata.expression.mfn.record.Create");
addMemberFunction("new", "com.scudata.expression.mfn.sequence.New");
addMemberFunction("new", "com.scudata.expression.mfn.op.AttachNew");
addMemberFunction("derive",
"com.scudata.expression.mfn.sequence.Derive");
addMemberFunction("derive",
"com.scudata.expression.mfn.op.AttachDerive");
addMemberFunction("derive", "com.scudata.expression.mfn.record.Derive");
addMemberFunction("penum", "com.scudata.expression.mfn.sequence.PEnum");
addMemberFunction("align", "com.scudata.expression.mfn.sequence.Align");
addMemberFunction("enum", "com.scudata.expression.mfn.sequence.Enum");
addMemberFunction("group", "com.scudata.expression.mfn.sequence.Group");
addMemberFunction("group", "com.scudata.expression.mfn.op.AttachGroup");
addMemberFunction("groups",
"com.scudata.expression.mfn.sequence.Groups");
addMemberFunction("groups", "com.scudata.expression.mfn.cursor.Groups");
addMemberFunction("groups", "com.scudata.expression.mfn.channel.Groups");
addMemberFunction("groupi",
"com.scudata.expression.mfn.sequence.Groupi");
addMemberFunction("news", "com.scudata.expression.mfn.sequence.News");
addMemberFunction("news", "com.scudata.expression.mfn.op.AttachNews");
addMemberFunction("pfind", "com.scudata.expression.mfn.sequence.PFind");
addMemberFunction("find", "com.scudata.expression.mfn.sequence.Find");
addMemberFunction("v", "com.scudata.expression.mfn.Value");
// ӳ??
addMemberFunction("key", "com.scudata.expression.mfn.record.Key");
addMemberFunction("keys", "com.scudata.expression.mfn.table.Keys");
addMemberFunction("switch",
"com.scudata.expression.mfn.sequence.SwitchFK");
addMemberFunction("switch",
"com.scudata.expression.mfn.op.AttachSwitch");
addMemberFunction("index", "com.scudata.expression.mfn.table.Index");
addMemberFunction("prior", "com.scudata.expression.mfn.record.Prior");
addMemberFunction("nodes", "com.scudata.expression.mfn.sequence.Nodes");
addMemberFunction("nodes", "com.scudata.expression.mfn.Nodes");
addMemberFunction("array", "com.scudata.expression.mfn.record.Array");
addMemberFunction("array", "com.scudata.expression.mfn.sequence.Array");
addMemberFunction("regex", "com.scudata.expression.mfn.string.Regex");
addMemberFunction("regex", "com.scudata.expression.mfn.sequence.Regex");
addMemberFunction("regex", "com.scudata.expression.mfn.op.AttachRegex");
addMemberFunction("concat",
"com.scudata.expression.mfn.sequence.Concat");
// ?洢
addFunction("filename", "com.scudata.expression.fn.FileName");
addFunction("directory", "com.scudata.expression.fn.Directory");
addFunction("file", "com.scudata.expression.fn.CreateFile");
addFunction("movefile", "com.scudata.expression.fn.MoveFile");
addFunction("httpfile", "com.scudata.expression.fn.CreateHttpFile");
addFunction("httpupload", "com.scudata.expression.fn.Http_Upload");
addMemberFunction("read", "com.scudata.expression.mfn.file.Read");
addMemberFunction("write", "com.scudata.expression.mfn.file.Write");
addMemberFunction("export", "com.scudata.expression.mfn.file.Export");
addMemberFunction("export",
"com.scudata.expression.mfn.sequence.Export");
addMemberFunction("import", "com.scudata.expression.mfn.file.Import");
addMemberFunction("import", "com.scudata.expression.mfn.string.Import");
addMemberFunction("name", "com.scudata.expression.mfn.file.Name");
addMemberFunction("exists", "com.scudata.expression.mfn.file.Exists");
addMemberFunction("size", "com.scudata.expression.mfn.file.Size");
addMemberFunction("date", "com.scudata.expression.mfn.file.Date");
addMemberFunction("property",
"com.scudata.expression.mfn.file.Property");
addMemberFunction("property",
"com.scudata.expression.mfn.string.Property");
addMemberFunction("iselect", "com.scudata.expression.mfn.file.ISelect");
addMemberFunction("sortx", "com.scudata.expression.mfn.file.Sortx");
// excel
addMemberFunction("xlsexport",
"com.scudata.expression.mfn.file.XlsExport");
addMemberFunction("xlsexport",
"com.scudata.expression.mfn.xo.XlsExport");
addMemberFunction("xlsimport",
"com.scudata.expression.mfn.file.XlsImport");
addMemberFunction("xlsimport",
"com.scudata.expression.mfn.xo.XlsImport");
addMemberFunction("xlsopen", "com.scudata.expression.mfn.file.XlsOpen");
addMemberFunction("xlswrite",
"com.scudata.expression.mfn.file.XlsWrite");
addMemberFunction("xlsclose", "com.scudata.expression.mfn.xo.XlsClose");
addMemberFunction("xlscell", "com.scudata.expression.mfn.xo.XlsCell");
addMemberFunction("xlsmove", "com.scudata.expression.mfn.xo.XlsMove");
addFunction("T", "com.scudata.expression.fn.T");
addFunction("E", "com.scudata.expression.fn.E");
addFunction("chardetect", "com.scudata.expression.fn.CharDetect");
addFunction("cellname", "com.scudata.expression.fn.CellName");
addMemberFunction("htmlparse",
"com.scudata.expression.mfn.string.HTMLParse");
addMemberFunction("close", "com.scudata.expression.mfn.Close");
// ???ݿ?
addFunction("connect", "com.scudata.expression.fn.Connect");
addMemberFunction("commit", "com.scudata.expression.mfn.db.Commit");
addMemberFunction("rollback", "com.scudata.expression.mfn.db.Rollback");
addMemberFunction("rollback",
"com.scudata.expression.mfn.file.Rollback");
addMemberFunction("rollback",
"com.scudata.expression.mfn.file.FileGroupRollback");
addMemberFunction("query", "com.scudata.expression.mfn.db.Query");
addMemberFunction("query", "com.scudata.expression.mfn.file.Query");
addMemberFunction("execute", "com.scudata.expression.mfn.db.Execute");
addMemberFunction("proc", "com.scudata.expression.mfn.db.Proc");
addMemberFunction("error", "com.scudata.expression.mfn.db.Error");
addMemberFunction("update", "com.scudata.expression.mfn.db.Update");
addMemberFunction("isolate", "com.scudata.expression.mfn.db.Isolate");
addMemberFunction("savepoint",
"com.scudata.expression.mfn.db.SavePoint");
// ???ݲֿ?
addFunction("vdbase", "com.scudata.expression.fn.VDBase");
addMemberFunction("begin", "com.scudata.expression.mfn.vdb.Begin");
addMemberFunction("commit", "com.scudata.expression.mfn.vdb.Commit");
addMemberFunction("rollback", "com.scudata.expression.mfn.vdb.Rollback");
addMemberFunction("home", "com.scudata.expression.mfn.vdb.Home");
addMemberFunction("path", "com.scudata.expression.mfn.vdb.Path");
addMemberFunction("lock", "com.scudata.expression.mfn.vdb.Lock");
addMemberFunction("list", "com.scudata.expression.mfn.vdb.List");
addMemberFunction("load", "com.scudata.expression.mfn.vdb.Load");
addMemberFunction("date", "com.scudata.expression.mfn.vdb.Date");
addMemberFunction("save", "com.scudata.expression.mfn.vdb.Save");
addMemberFunction("move", "com.scudata.expression.mfn.vdb.Move");
addMemberFunction("read", "com.scudata.expression.mfn.vdb.Read");
addMemberFunction("write", "com.scudata.expression.mfn.vdb.Write");
addMemberFunction("update", "com.scudata.expression.mfn.vdb.Update");
addMemberFunction("saveblob", "com.scudata.expression.mfn.vdb.SaveBlob");
addMemberFunction("retrieve", "com.scudata.expression.mfn.vdb.Retrive");
addMemberFunction("archive", "com.scudata.expression.mfn.vdb.Archive");
addMemberFunction("purge", "com.scudata.expression.mfn.vdb.Purge");
addMemberFunction("copy", "com.scudata.expression.mfn.vdb.Copy");
// ?α?
addMemberFunction("cursor",
"com.scudata.expression.mfn.db.CreateCursor");
addMemberFunction("cursor",
"com.scudata.expression.mfn.file.CreateCursor");
addMemberFunction("cursor",
"com.scudata.expression.mfn.sequence.CreateCursor");
addMemberFunction("cursor",
"com.scudata.expression.mfn.cursor.CreateCursor");
addMemberFunction("mcursor",
"com.scudata.expression.mfn.sequence.MCursor");
addMemberFunction("mcursor",
"com.scudata.expression.mfn.cursor.MCursor");
addMemberFunction("fetch", "com.scudata.expression.mfn.cursor.Fetch");
addMemberFunction("fetch", "com.scudata.expression.mfn.channel.Fetch");
addMemberFunction("skip", "com.scudata.expression.mfn.cursor.Skip");
addMemberFunction("groupx", "com.scudata.expression.mfn.cursor.Groupx");
addMemberFunction("groupx", "com.scudata.expression.mfn.channel.Groupx");
addMemberFunction("groupn",
"com.scudata.expression.mfn.op.AttachGroupn");
addMemberFunction("sortx", "com.scudata.expression.mfn.cursor.Sortx");
addMemberFunction("sortx", "com.scudata.expression.mfn.channel.Sortx");
addMemberFunction("join", "com.scudata.expression.mfn.op.AttachJoin");
addMemberFunction("join", "com.scudata.expression.mfn.sequence.JoinFK");
addMemberFunction("fjoin", "com.scudata.expression.mfn.sequence.FJoin");
addMemberFunction("fjoin", "com.scudata.expression.mfn.op.AttachFJoin");
addMemberFunction("pjoin", "com.scudata.expression.mfn.sequence.PJoin");
addMemberFunction("pjoin", "com.scudata.expression.mfn.op.AttachPJoin");
addMemberFunction("mjoin", "com.scudata.expression.mfn.sequence.MJoin");
addMemberFunction("joinx", "com.scudata.expression.mfn.cursor.Joinx");
addMemberFunction("joinx", "com.scudata.expression.mfn.sequence.Joinx");
addMemberFunction("joinx", "com.scudata.expression.mfn.channel.Joinx");
addMemberFunction("mergex", "com.scudata.expression.mfn.cursor.Mergex");
addMemberFunction("mergex",
"com.scudata.expression.mfn.sequence.Mergex");
addMemberFunction("conjx", "com.scudata.expression.mfn.sequence.Conjx");
addMemberFunction("total", "com.scudata.expression.mfn.cursor.Total");
addMemberFunction("total", "com.scudata.expression.mfn.channel.Total");
addFunction("xjoinx", "com.scudata.expression.fn.XJoinx");
addFunction("joinx", "com.scudata.expression.fn.Joinx");
addFunction("cursor", "com.scudata.expression.fn.CreateCursor");
addFunction("channel", "com.scudata.expression.fn.CreateChannel");
addMemberFunction("push", "com.scudata.expression.mfn.op.AttachPush");
addMemberFunction("result", "com.scudata.expression.mfn.channel.Result");
// ?ֿ?
addFunction("memory", "com.scudata.expression.fn.parallel.Memory");
addMemberFunction("row", "com.scudata.expression.mfn.TableRow");
addMemberFunction("attach", "com.scudata.expression.mfn.dw.Attach");
addMemberFunction("append", "com.scudata.expression.mfn.dw.Append");
addMemberFunction("update", "com.scudata.expression.mfn.dw.Update");
addMemberFunction("update",
"com.scudata.expression.mfn.dw.UpdateMemoryTable");
addMemberFunction("delete", "com.scudata.expression.mfn.dw.Delete");
addMemberFunction("index", "com.scudata.expression.mfn.dw.Index");
addMemberFunction("memory", "com.scudata.expression.mfn.dw.Memory");
addMemberFunction("cursor",
"com.scudata.expression.mfn.dw.CreateCursor");
addMemberFunction("import", "com.scudata.expression.mfn.dw.Import");
addMemberFunction("new", "com.scudata.expression.mfn.dw.New");
addMemberFunction("news", "com.scudata.expression.mfn.dw.News");
addMemberFunction("derive", "com.scudata.expression.mfn.dw.Derive");
addMemberFunction("icursor", "com.scudata.expression.mfn.dw.Icursor");
addMemberFunction("cgroups", "com.scudata.expression.mfn.dw.Cgroups");
addMemberFunction("find", "com.scudata.expression.mfn.dw.Find");
addMemberFunction("create", "com.scudata.expression.mfn.file.Create");
addMemberFunction("create", "com.scudata.expression.mfn.dw.Create");
addMemberFunction("open", "com.scudata.expression.mfn.file.Open");
addMemberFunction("reset", "com.scudata.expression.mfn.file.Reset");
addMemberFunction("create",
"com.scudata.expression.mfn.file.FileGroupCreate");
addMemberFunction("reset",
"com.scudata.expression.mfn.file.FileGroupReset");
addMemberFunction("open",
"com.scudata.expression.mfn.file.FileGroupOpen");
addMemberFunction("cuboid",
"com.scudata.expression.mfn.dw.CreateCuboid");
addMemberFunction("rename", "com.scudata.expression.mfn.dw.Rename");
addMemberFunction("alter", "com.scudata.expression.mfn.dw.Alter");
addMemberFunction("structure",
"com.scudata.expression.mfn.file.Structure");
addMemberFunction("structure",
"com.scudata.expression.mfn.file.FileGroupStructure");
addMemberFunction("memory", "com.scudata.expression.mfn.cursor.Memory");
addMemberFunction("dup", "com.scudata.expression.mfn.table.Dup");
// ͳ??ͼ
addFunction("canvas", "com.scudata.expression.fn.CreateCanvas");
addMemberFunction("plot", "com.scudata.expression.mfn.canvas.Plot");
addMemberFunction("draw", "com.scudata.expression.mfn.canvas.Draw");
addMemberFunction("hlink", "com.scudata.expression.mfn.canvas.HLink");
// ʱ?????ں???
addFunction("age", "com.scudata.expression.fn.datetime.Age");
addFunction("datetime", "com.scudata.expression.fn.datetime.DateTime");
addFunction("day", "com.scudata.expression.fn.datetime.Day");
addFunction("hour", "com.scudata.expression.fn.datetime.Hour");
addFunction("minute", "com.scudata.expression.fn.datetime.Minute");
addFunction("month", "com.scudata.expression.fn.datetime.Month");
addFunction("now", "com.scudata.expression.fn.datetime.Now");
addFunction("second", "com.scudata.expression.fn.datetime.Second");
addFunction("millisecond",
"com.scudata.expression.fn.datetime.Millisecond");
addFunction("date", "com.scudata.expression.fn.datetime.ToDate");
addFunction("time", "com.scudata.expression.fn.datetime.ToTime");
addFunction("year", "com.scudata.expression.fn.datetime.Year");
addFunction("periods", "com.scudata.expression.fn.datetime.Period");
addFunction("interval", "com.scudata.expression.fn.datetime.Interval");
addFunction("elapse", "com.scudata.expression.fn.datetime.Elapse");
addFunction("days", "com.scudata.expression.fn.datetime.Days");
addFunction("pdate", "com.scudata.expression.fn.datetime.PDate");
addFunction("deq", "com.scudata.expression.fn.datetime.DateEqual");
addFunction("workday", "com.scudata.expression.fn.datetime.WorkDay");
addFunction("workdays", "com.scudata.expression.fn.datetime.WorkDays");
// ??ѧ????
addFunction("abs", "com.scudata.expression.fn.math.Abs");
addFunction("and", "com.scudata.expression.fn.math.And");
addFunction("acos", "com.scudata.expression.fn.math.Arccos");
addFunction("acosh", "com.scudata.expression.fn.math.Arccosh");
addFunction("asin", "com.scudata.expression.fn.math.Arcsin");
addFunction("asinh", "com.scudata.expression.fn.math.Arcsinh");
addFunction("atan", "com.scudata.expression.fn.math.Arctan");
addFunction("atanh", "com.scudata.expression.fn.math.Arctanh");
addFunction("bin", "com.scudata.expression.fn.math.Bin");
addFunction("bits", "com.scudata.expression.fn.math.Bits");
addFunction("bit1", "com.scudata.expression.fn.math.Bit1");
addFunction("ceil", "com.scudata.expression.fn.math.Ceiling");
addFunction("combin", "com.scudata.expression.fn.math.Combin");
addFunction("cos", "com.scudata.expression.fn.math.Cos");
addFunction("cosh", "com.scudata.expression.fn.math.Cosh");
addFunction("digits", "com.scudata.expression.fn.math.Digits");
addFunction("exp", "com.scudata.expression.fn.math.Exp");
addFunction("fact", "com.scudata.expression.fn.math.Fact");
addFunction("floor", "com.scudata.expression.fn.math.Floor");
addFunction("gcd", "com.scudata.expression.fn.math.Gcd");
addFunction("hash", "com.scudata.expression.fn.math.Hash");
addFunction("hex", "com.scudata.expression.fn.math.Hex");
addFunction("inf", "com.scudata.expression.fn.math.Inf");
addFunction("lcm", "com.scudata.expression.fn.math.Lcm");
addFunction("lg", "com.scudata.expression.fn.math.Loga");
addFunction("ln", "com.scudata.expression.fn.math.Log");
addFunction("not", "com.scudata.expression.fn.math.Not");
addFunction("or", "com.scudata.expression.fn.math.Or");
addFunction("permut", "com.scudata.expression.fn.math.Permut");
addFunction("pi", "com.scudata.expression.fn.math.Pi");
addFunction("power", "com.scudata.expression.fn.math.Pow");
addFunction("product", "com.scudata.expression.fn.math.Product");
addFunction("rand", "com.scudata.expression.fn.math.Rand");
addFunction("round", "com.scudata.expression.fn.math.Round");
addFunction("remainder", "com.scudata.expression.fn.math.Remainder");
addFunction("shift", "com.scudata.expression.fn.math.Shift");
addFunction("sign", "com.scudata.expression.fn.math.Sign");
addFunction("sin", "com.scudata.expression.fn.math.Sin");
addFunction("sinh", "com.scudata.expression.fn.math.Sinh");
addFunction("sqrt", "com.scudata.expression.fn.math.Sqrt");
addFunction("tan", "com.scudata.expression.fn.math.Tan");
addFunction("tanh", "com.scudata.expression.fn.math.Tanh");
addFunction("xor", "com.scudata.expression.fn.math.Xor");
// ?ַ???????
addFunction("fill", "com.scudata.expression.fn.string.Fill");
addFunction("left", "com.scudata.expression.fn.string.Left");
addFunction("len", "com.scudata.expression.fn.string.Len");
addFunction("like", "com.scudata.expression.fn.string.Like");
addFunction("lower", "com.scudata.expression.fn.string.Lower");
addFunction("mid", "com.scudata.expression.fn.string.Mid");
addFunction("pos", "com.scudata.expression.fn.string.Pos");
addFunction("replace", "com.scudata.expression.fn.string.Replace");
addFunction("right", "com.scudata.expression.fn.string.Right");
addFunction("trim", "com.scudata.expression.fn.string.Trim");
addFunction("upper", "com.scudata.expression.fn.string.Upper");
addFunction("pad", "com.scudata.expression.fn.string.Pad");
addFunction("rands", "com.scudata.expression.fn.string.Rands");
addFunction("concat", "com.scudata.expression.fn.string.Concat");
addFunction("urlencode", "com.scudata.expression.fn.string.URLEncode");
addFunction("charencode", "com.scudata.expression.fn.string.CharEncode");
addFunction("base64", "com.scudata.expression.fn.string.Base64");
addFunction("md5", "com.scudata.expression.fn.string.MD5Encrypt");
addFunction("substr", "com.scudata.expression.fn.string.SubString");
addFunction("aes", "com.scudata.expression.fn.string.AESEncrypt");
addFunction("des", "com.scudata.expression.fn.string.DESEncrypt");
addFunction("desede", "com.scudata.expression.fn.string.DESedeEncrypt");
addFunction("rsa", "com.scudata.expression.fn.string.RSAEncrypt");
addMemberFunction("words", "com.scudata.expression.mfn.string.Words");
addMemberFunction("split", "com.scudata.expression.mfn.string.Split");
addMemberFunction("sqlparse",
"com.scudata.expression.mfn.string.SQLParse");
addMemberFunction("sqltranslate",
"com.scudata.expression.mfn.string.SQLTranslate");
addMemberFunction("sbs", "com.scudata.expression.mfn.string.Sbs");
// ????ת??????
addFunction("ifv", "com.scudata.expression.fn.convert.IfVariable");
addFunction("ifa", "com.scudata.expression.fn.convert.IfSequence");
addFunction("ifr", "com.scudata.expression.fn.convert.IfRecord");
addFunction("ift", "com.scudata.expression.fn.convert.IfTable");
addFunction("ifdate", "com.scudata.expression.fn.convert.IfDate");
addFunction("iftime", "com.scudata.expression.fn.convert.IfTime");
addFunction("ifnumber", "com.scudata.expression.fn.convert.IfNumber");
addFunction("ifstring", "com.scudata.expression.fn.convert.IfString");
addFunction("typeof", "com.scudata.expression.fn.convert.Typeof");
addFunction("isalpha", "com.scudata.expression.fn.convert.IsAlpha");
addFunction("isdigit", "com.scudata.expression.fn.convert.IsDigit");
addFunction("islower", "com.scudata.expression.fn.convert.IsLower");
addFunction("isupper", "com.scudata.expression.fn.convert.IsUpper");
addFunction("uuid", "com.scudata.expression.fn.CreateUUID");
addFunction("bool", "com.scudata.expression.fn.convert.ToBool");
addFunction("int", "com.scudata.expression.fn.convert.ToInteger");
addFunction("long", "com.scudata.expression.fn.convert.ToLong");
addFunction("float", "com.scudata.expression.fn.convert.ToDouble");
addFunction("number", "com.scudata.expression.fn.convert.ToNumber");
addFunction("string", "com.scudata.expression.fn.convert.ToString");
addFunction("decimal", "com.scudata.expression.fn.convert.ToBigDecimal");
addFunction("asc", "com.scudata.expression.fn.convert.ToAsc");
addFunction("char", "com.scudata.expression.fn.convert.ToChar");
addFunction("rgb", "com.scudata.expression.fn.convert.RGB");
addFunction("chn", "com.scudata.expression.fn.convert.ToChinese");
addFunction("parse", "com.scudata.expression.fn.convert.Parse");
addFunction("format", "com.scudata.expression.fn.convert.Format");
addFunction("json", "com.scudata.expression.fn.convert.Json");
addFunction("xml", "com.scudata.expression.fn.convert.Xml");
// financial function
// addFunction("Fsln","com.scudata.expression.fn.financial.Sln");
// addFunction("Fsyd","com.scudata.expression.fn.financial.Syd");
// addFunction("Fdb","com.scudata.expression.fn.financial.Db");
// addFunction("Fddb","com.scudata.expression.fn.financial.Ddb");
// addFunction("Fvdb","com.scudata.expression.fn.financial.Vdb");
// addFunction("Fnper","com.scudata.expression.fn.financial.Nper");
// addFunction("Fpmt","com.scudata.expression.fn.financial.Pmt");
// addFunction("Fv","com.scudata.expression.fn.financial.Fv");
// addFunction("Frate","com.scudata.expression.fn.financial.Rate");
// addFunction("Fnpv","com.scudata.expression.fn.financial.Npv");
// addFunction("Firr","com.scudata.expression.fn.financial.Irr");
// addFunction("Fmirr","com.scudata.expression.fn.financial.Mirr");
// addFunction("Faccrint","com.scudata.expression.fn.financial.Accrint");
// addFunction("Faccrintm","com.scudata.expression.fn.financial.Accrintm");
// addFunction("Fintrate","com.scudata.expression.fn.financial.Intrate");
// addFunction("Freceived","com.scudata.expression.fn.financial.Received");
// addFunction("Fprice","com.scudata.expression.fn.financial.Price");
// addFunction("Fdisc","com.scudata.expression.fn.financial.Disc");
// addFunction("Fyield","com.scudata.expression.fn.financial.Yield");
// addFunction("Fcoups","com.scudata.expression.fn.financial.Coups");
// addFunction("Fcoupcd","com.scudata.expression.fn.financial.Coupcd");
// addFunction("Fduration","com.scudata.expression.fn.financial.Duration");
// algebra function
addFunction("var", "com.scudata.expression.fn.algebra.Var");
addFunction("mse", "com.scudata.expression.fn.algebra.Mse");
addFunction("mae", "com.scudata.expression.fn.algebra.Mae");
addFunction("dis", "com.scudata.expression.fn.algebra.Distance");
addFunction("I", "com.scudata.expression.fn.algebra.Identity");
addFunction("mul", "com.scudata.expression.fn.algebra.Mul");
addFunction("transpose", "com.scudata.expression.fn.algebra.Transpose");
addFunction("inverse", "com.scudata.expression.fn.algebra.Inverse");
addFunction("det", "com.scudata.expression.fn.algebra.Det");
addFunction("rankm", "com.scudata.expression.fn.algebra.Rankm");
addFunction("linefit", "com.scudata.expression.fn.algebra.Linefit");
addFunction("polyfit", "com.scudata.expression.fn.algebra.Polyfit");
addFunction("norm", "com.scudata.expression.fn.algebra.Normalize");
addFunction("pearson", "com.scudata.expression.fn.algebra.Pearson");
addFunction("spearman", "com.scudata.expression.fn.algebra.Spearman");
}
/**
* ?????Զ??庯??
*
* @param fileName
* String
*/
public static void loadCustomFunctions(String fileName) {
try {
InputStream is = null;
File file;
file = new File(fileName);
if (file.exists()) {
is = new FileInputStream(file);
} else {
is = FunctionLib.class.getResourceAsStream(fileName);
}
if (is == null) {
throw new Exception(
"load customFunction file inputstream failed.");
} else {
loadCustomFunctions(is);
}
} catch (Exception x) {
}
}
/**
* ?????û????庯??
*
* @param is
* ??????
*/
public static void loadCustomFunctions(InputStream is) {
try {
Properties properties = new Properties();
properties.load(is);
for (Property property : properties) {
String name = property.getName();
String value = property.getValue();
int pos = value.indexOf(',');
String type = value.substring(0, pos).trim();
String cls = value.substring(pos + 1, value.length()).trim();
if (type.equals("1")) {
addMemberFunction(name, cls);
} else if (type.equals("0")) {
addFunction(name, cls);
}
} // for
} catch (Throwable e) {
Logger.error(e.getMessage());
}
}
private static void loadExt(InputStream is, ClassLoader loader)
throws Exception {
Properties properties = new Properties();
properties.load(is);
HashMap> m0 = new HashMap>();
ArrayList mfnNames = new ArrayList();
ArrayList> mfns = new ArrayList>();
for (Property property : properties) {
String name = property.getName();
String value = property.getValue();
int pos = value.indexOf(',');
String type = value.substring(0, pos).trim();
String clsName = value.substring(pos + 1, value.length()).trim();
if (type.equals("0")) {
// ȫ?ֺ?????????????
if (fnMap.containsKey(name)) {
MessageManager mm = EngineMessage.get();
throw new RuntimeException(
mm.getMessage("FunctionLib.repeatedFunction")
+ name);
}
Class cls = (Class) loader
.loadClass(clsName);
m0.put(name, cls);
} else if (type.equals("1")) {
// ??Ա????????????
Class cls = (Class) loader
.loadClass(clsName);
mfnNames.add(name);
mfns.add(cls);
}
}
fnMap.putAll(m0);
for (int i = 0, size = mfnNames.size(); i < size; ++i) {
addMemberFunction(mfnNames.get(i), mfns.get(i));
}
}
/**
* װ???ⲿ??
*
* @param path
* ?ⲿ???????ļ?
*/
public static void loadExtLibrary(File path) {
File[] fs = path.listFiles();
ArrayList list = new ArrayList();
ArrayList jars = new ArrayList();
for (File f : fs) {
if (f.getName().endsWith(".jar")) {
jars.add(f);
try {
list.add(new URL("file", null, 0, f.getCanonicalPath()));
} catch (Exception e) {
}
}
}
// loaderûָ????
URLClassLoader loader = new URLClassLoader(list.toArray(new URL[] {}),
FunctionLib.class.getClassLoader());
Pattern p = Pattern
.compile("com/scudata/lib/(\\w+)/functions.properties");
for (File f : jars) {
JarFile jf = null;
try {
jf = new JarFile(f);
Enumeration jee = jf.entries();
while (jee.hasMoreElements()) {
JarEntry je = jee.nextElement();
Matcher m = p.matcher(je.getName());
if (!m.matches())
continue;
String libName = m.group(1);
try {
InputStream in = jf.getInputStream(je);
loadExt(in, loader);
Logger.info("load library [" + libName + "] from "
+ path.getName());
} catch (Throwable e) {
Logger.error("failed to load library [" + libName
+ "] from " + path.getName(), e);
}
}
jf.close();
} catch (Exception e) {
Logger.error("failed to open jar file" + path.getName() + "/"
+ f.getName(), e);
continue;
}
}
}
/**
* ????ָ????Ա????
*
* @param leftValue
* ??????
* @param fnName
* ??????
* @param param
* ????????
* @param option
* ????ѡ??
* @param ctx
* ??????????
* @return ??????
*/
public static Object executeMemberFunction(Object leftValue, String fnName,
String param, String option, Context ctx) {
MemberFunction fn = FunctionLib.newMemberFunction(fnName);
fn.setParameter(null, ctx, param);
fn.setOption(option);
Constant leftNode = new Constant(leftValue);
DotOperator dot = new DotOperator();
dot.setLeft(leftNode);
dot.setRight(fn);
return dot.calculate(ctx);
}
}