com.scudata.expression.mfn.file.XlsExport Maven / Gradle / Ivy
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SPL(Structured Process Language) A programming language specially for structured data computing.
package com.scudata.expression.mfn.file;
import java.io.IOException;
import com.scudata.common.ArgumentTokenizer;
import com.scudata.common.MessageManager;
import com.scudata.common.RQException;
import com.scudata.common.StringUtils;
import com.scudata.dm.Context;
import com.scudata.dm.KeyWord;
import com.scudata.dm.Sequence;
import com.scudata.dm.cursor.ICursor;
import com.scudata.dm.cursor.MemoryCursor;
import com.scudata.dm.cursor.SubCursor;
import com.scudata.excel.ExcelTool;
import com.scudata.excel.ExcelUtils;
import com.scudata.expression.Expression;
import com.scudata.expression.FileFunction;
import com.scudata.expression.IParam;
import com.scudata.expression.Node;
import com.scudata.resources.AppMessage;
import com.scudata.resources.EngineMessage;
import com.scudata.util.Variant;
/**
* f.xlsexport(A,x:F,??;s;p) ????Excel?ļ???sΪҳ????sʡ??ʱд???һҳ??A?????αꡣxlsx?ļ?д??100?????Զ?ֹͣ
*
* @a ԭ?ļ????ڽ????????һ?еĸ?ʽ????д
* @t ???????⣬ԭ?ļ?????ʱ??Ϊ???һ???????ݵ????DZ???
* @c ʹ????ʽд?????ļ???ԭ?ļ?Ҫ??ȫ???룬????̫??
* @w A?????е????л?س?/Tab?ָ??Ĵ?????@t@c???⣬??x:F????
* @p @w??ת?ã????е??????????к??еģ??Ǵ?ʱ????
* @m xlsx????100????ʱ?????µ?sheetд??
*/
public class XlsExport extends FileFunction {
/**
* ????
*/
public Object calculate(Context ctx) {
if (param == null) {
MessageManager mm = EngineMessage.get();
throw new RQException("xlsexport"
+ mm.getMessage("function.missingParam"));
}
IParam param0;
IParam param1 = null;
String pwd = null;
if (param.getType() == IParam.Semicolon) { // ;
if (param.getSubSize() != 2 && param.getSubSize() != 3) {
MessageManager mm = EngineMessage.get();
throw new RQException("xlsexport"
+ mm.getMessage("function.invalidParam"));
}
param0 = param.getSub(0);
param1 = param.getSub(1);
if (param.getSubSize() == 3) {
IParam pwdParam = param.getSub(2);
Object tmp = pwdParam.getLeafExpression().calculate(ctx);
if (tmp != null)
pwd = tmp.toString();
if ("".equals(pwd))
pwd = null;
}
if (param0 == null) {
MessageManager mm = EngineMessage.get();
throw new RQException("xlsexport"
+ mm.getMessage("function.invalidParam"));
}
} else {
param0 = param;
}
Object src;
Expression[] exps = null;
String[] names = null;
Object s = null;
if (param0.isLeaf()) {
src = param0.getLeafExpression().calculate(ctx);
} else { // series,xi:fi...
IParam sub = param0.getSub(0);
if (sub == null || !sub.isLeaf()) {
MessageManager mm = EngineMessage.get();
throw new RQException("xlsexport"
+ mm.getMessage("function.invalidParam"));
}
src = sub.getLeafExpression().calculate(ctx);
int size = param0.getSubSize();
exps = new Expression[size - 1];
names = new String[size - 1];
for (int i = 1; i < size; ++i) {
sub = param0.getSub(i);
if (sub == null) {
MessageManager mm = EngineMessage.get();
throw new RQException("xlsexport"
+ mm.getMessage("function.invalidParam"));
} else if (sub.isLeaf()) {
exps[i - 1] = sub.getLeafExpression();
} else {
if (sub.getSubSize() != 2) {
MessageManager mm = EngineMessage.get();
throw new RQException("xlsexport"
+ mm.getMessage("function.invalidParam"));
}
IParam p1 = sub.getSub(0);
if (p1 == null) {
MessageManager mm = EngineMessage.get();
throw new RQException("xlsexport"
+ mm.getMessage("function.invalidParam"));
}
exps[i - 1] = p1.getLeafExpression();
IParam p2 = sub.getSub(1);
if (p2 != null) {
names[i - 1] = p2.getLeafExpression()
.getIdentifierName();
}
}
}
}
if (param1 != null) {
s = param1.getLeafExpression().calculate(ctx);
}
String opt = option;
boolean isXlsx = false, isTitle = false, isSsxxf = false, isAppend = false, isM = false;
if (opt != null) {
if (opt.indexOf('t') != -1)
isTitle = true;
if (opt.indexOf('c') != -1)
isSsxxf = true;
if (opt.indexOf('a') != -1)
isAppend = true;
if (opt.indexOf('m') != -1)
isM = true;
}
boolean isP = opt != null && opt.indexOf("p") > -1;
boolean isK = opt != null && opt.indexOf("k") > -1;
boolean isW = opt != null && opt.indexOf("w") > -1;
if (isW) {
if (isTitle || isSsxxf) {
throw new RQException(AppMessage.get().getMessage(
"xlsexport.nowtc"));
}
if (exps != null) {
throw new RQException(AppMessage.get().getMessage(
"xlsexport.nowfields"));
}
}
if (!isW) {
if (isP) {
// ѡ??@{0}ֻ?ܺ?ѡ??@wͬʱʹ?á?
throw new RQException(AppMessage.get().getMessage(
"xlsimport.pnnotw", "p"));
}
}
if (file != null) // ʹ??poi?ķ????жϰ汾
isXlsx = ExcelUtils.isXlsxFile(file);
// ???sheet????
ExcelUtils.checkSheetName(s);
ExcelTool et = new ExcelTool(file, isTitle, isXlsx, isSsxxf, isAppend,
s, pwd, isW, isK);
int maxCount = et.getMaxLineCount();
if (isTitle)
maxCount--;
Sequence seq = null;
ICursor cursor = null;
boolean isStr = false;
if (isW) {
if (src != null && src instanceof String) { // ????\n\tƴ?ɵĴ?
src = parseSequence((String) src);
isStr = true;
}
}
if (src == null) {
return null;
}
if (src instanceof Sequence) {
seq = (Sequence) src;
if (!isStr) {// ????????
if (isP) {
seq = ExcelUtils.transpose(seq);
src = seq;
}
}
}
if (isM) {
try {
xlsExportM(src, maxCount, et, s, exps, names, isTitle, isW, ctx);
} catch (Exception e) {
throw new RQException(e.getMessage(), e);
} finally {
try {
et.close();
} catch (IOException e) {
throw new RQException(e.getMessage(), e);
}
}
return null;
}
if (src instanceof Sequence) {
if (seq.length() > maxCount) {
cursor = new MemoryCursor(seq, 1, maxCount + 1);
seq = null;
}
} else if (src instanceof ICursor) {
cursor = (ICursor) src;
cursor = new SubCursor(cursor, maxCount);
} else {
MessageManager mm = EngineMessage.get();
throw new RQException("xlsexport"
+ mm.getMessage("function.paramTypeError"));
}
try {
if (seq != null) {
et.fileXlsExport(seq, exps, names, isTitle, isW, ctx);
} else {
et.fileXlsExport(cursor, exps, names, isTitle, isW, ctx);
}
} catch (Exception e) {
throw new RQException(e.getMessage(), e);
} finally {
try {
et.close();
} catch (IOException e) {
throw new RQException(e.getMessage(), e);
}
}
return null;
}
/**
* ?Խڵ????Ż?
* @param ctx ??????????
* @param Node ?Ż???Ľڵ?
*/
public Node optimize(Context ctx) {
if (param != null) {
// ?Բ??????Ż?
param.optimize(ctx);
}
return this;
}
private void xlsExportM(Object src, int maxCount, ExcelTool et, Object s,
Expression[] exps, String[] names, boolean isTitle, boolean isW,
Context ctx) throws Exception {
Sequence seq = null;
ICursor cursor = null;
if (src instanceof Sequence) {
seq = (Sequence) src;
int totalCount = seq.length();
if (totalCount > maxCount) {
String sheetName = s == null ? "Sheet" : (String) s;
int start = 1;
int index = 1;
while (totalCount > 0) {
cursor = new MemoryCursor(seq, start, start + maxCount);
if (index > 1)
et.setSheet(sheetName + index);
et.fileXlsExport(cursor, exps, names, isTitle, isW, ctx);
start += maxCount;
index++;
totalCount -= maxCount;
}
} else {
et.fileXlsExport(seq, exps, names, isTitle, isW, ctx);
}
} else if (src instanceof ICursor) {
cursor = (ICursor) src;
String sheetName = s == null ? "Sheet" : (String) s;
int index = 1;
ICursor subCursor;
while (cursor.peek(1) != null) {
subCursor = new SubCursor(cursor, maxCount);
if (index > 1)
et.setSheet(sheetName + index);
et.fileXlsExport(subCursor, exps, names, isTitle, isW, ctx);
index++;
}
} else {
MessageManager mm = EngineMessage.get();
throw new RQException("xlsexport"
+ mm.getMessage("function.paramTypeError"));
}
}
/**
* ???ַ???????Ϊ????
*
* @param str
* Ҫ???????ַ???
* @return
*/
private Sequence parseSequence(String str) {
try {
str = str.replaceAll("\r\n", "\n");
str = str.replaceAll("\r", "\n");
} catch (Exception x) {
}
String rowStr;
String item;
Sequence seq = new Sequence();
ArgumentTokenizer rows = new ArgumentTokenizer(str, '\n');
while (rows.hasMoreTokens()) {
rowStr = rows.nextToken();
Sequence subSeq = new Sequence();
ArgumentTokenizer items = new ArgumentTokenizer(rowStr, '\t');
while (items.hasMoreTokens()) {
item = items.nextToken();
Object val = item;
if (StringUtils.isValidString(item)) {
if (item.startsWith(KeyWord.CONSTSTRINGPREFIX)
&& !item.endsWith(KeyWord.CONSTSTRINGPREFIX)) { // ?ַ???????'
val = item.substring(1);
} else {
val = Variant.parseCellValue(item);
}
}
subSeq.add(val);
}
seq.add(subSeq);
}
return seq;
}
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