"Premature end of file" when reading in a GZIP file!
Hello i'm trying to figure out what may be causing a "Premature end of file" when reading in a GZIP file!
Basically, what i'm trying to do is read a GZIP file, create an XML file in GZIP format and then validate the GZIPed XML file using the SAX validator and this process works fine for LOW volume data, but for HIGH volume data it seems to have several problems. One problem i was getting was 'Corrupt GZIP trailer', which seems to be a known bug, used an override here and it's ok, and now i'm getting the 'Premature end of file error'.
Here is the error report, see <<<<<<<<<!
START: Wed Aug 03 12:03:41 EDT 2005
Runparms :
host: ....
port: ....
sid: ....
usr: ....
site: ....
val_type: HVPEZ -- previously HVPEX, reason, reading zip file (.gz)
dbo: NULL
ddl: /home/......../HLPVAL/DAT/hlp_ddl_file
table: ......
db_name: NULL
dat_file: /..../...../....../xxxxxxx1.dat.gz
xsd: /home/....../....../XSD/xxxxxxx1.xsd
sql: NULL
debug: NULL
sql query null
pid: 11751
xml: /home/.........../...../XML/xxxxxx1.dat_HVPEZ_xml.gz
rep: /home/.........../...../XML/xxxxxx1.dat_HVPEZ.valrep
fatalError:
setValidity:
Error number : 1
Error starts on line number : 1302706816
Error starts on column position: 8
Error text is : org.xml.sax.SAXParseException: Premature end of file. <<<<<<<<<<<
org.xml.sax.SAXParseException: Premature end of file.
Here i'm reading in a GZIPed file, i then generate the XML and write out another GZIPed file, see <<<<<<<<<<:
try {
GZIPOutputStream gz = new GZIPOutputStream(new FileOutputStream(xp.xml_file)); >>>>>>>> out GZIPed
PrintWriter outf = new PrintWriter (gz);
GZIPInputStream in = new GZIPInputStream(new FileInputStream(xp.dat_file),4096); <<<<<< in GZIPed
byte[] buf = new byte[4096];int len=0; String[] sa = new String[NUM_COLS]; int bj=0; char[] ca=new char[1500];
while ((len = in.read(buf)) > 0)
String hrec = new String();
for (int b=0;b<len;b++)
Byte byt=new Byte(buf); int bi=byt.intValue(); char c=(char)bi; ca[bj]=c;
if (c == '\n')
hrec=new String(ca); hrec=hrec.trim();
for (int k=0;k<1500;k++) ca [k]=' ';
int prevj=0; j=0;int fcnt=0;
for (int w=0; w<hrec.length(); w++)
if (hrec.charAt(w)=='|')
sa[j]=hrec.substring(prevj,w);fcnt++;
j++; prevj=w+1;
sa[j]=hrec.substring(prevj,hrec.length());fcnt++; bj=-1;
for (int i = 0; i < NUM_COLS; i++)
if (i>(sa.length-1)) { sToken = new String(); } else { sToken = sa[i]; }
if (sToken.indexOf('<')>-1 || sToken.indexOf('>')>-1 || sToken.indexOf('"')>-1 ||
sToken.indexOf('&')>-1 )
String sToken2 = new String();
sToken2 = normalize(sToken);
sToken = sToken2;
outf.write(" <"+_columnNames[i]+">"+sToken+"</"+_columnNames[i]+">"+"\n");
outf.write(" </"+FILE_NAME+">"+"\n");
bj++;
outf.write("</hlp_data>"+"\n");
outf.flush(); <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< here if tried every combination of close command ect.
outf.close();
gz.finish();
gz.close();
in.close();
Here i'm reading the GZIPed file from the previous program and this is where the 'Premature end of file' error is occurring. Notice that i'm using an extended class Called WorkingGZIPInputStream, this is to bypass the error message 'Corrupt GZIP trailer' message that seems to occur when processing high volume files, here's a previous link on issue:
http://saloon.javaranch.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic&f=1&t=011624
HlpValSax1 sx = new HlpValSax1();
SAXParser sp = sx.getParser(xp.xsd_file);
if (
xp.val_type.substring(0,5).equals("HVPEZ")
|| xp.val_type.substring(0,5).equals("HVPEX")
|| xp.val_type.substring(0,5).equals("HVOEX")
WorkingGZIPInputStream is = new WorkingGZIPInputStream(new FileInputStream(xp.xml_file),4096); <<<<<<<<<<
sp.parse(is,dh);
else
File file = new File(xp.xml_file);
InputStream is2 = new FileInputStream(file);
sp.parse(is2,dh);
catch (FileNotFoundException nf) {System.out.println(nf);}
catch (SAXException sa) {System.out.println(sa);}
catch (IOException io) {System.out.println(io);}
Turns out things were not exactly the same. When I had done it from disk I would always create a new InputStream when reading the resource, when doing it from the Jar I was reusing it.
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membera
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membera
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Regards
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=======
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=======
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================
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=========
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d
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d
isSetEmpty.===========================================
=========
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r v.
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d
printMember.==========================================
=========
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catch cx_sy_dyn_call_illegal_type.
endtry.
CALL METHOD CL_ABAP_CONV_IN_CE=>CREATE
EXPORTING
INPUT = xstr
ENCODING = 'UTF-8'
* REPLACEMENT = '?'
* IGNORE_CERR = ABAP_TRUE
RECEIVING
CONV = loc_CONV.
TRY.
CALL METHOD LOC_CONV->READ
IMPORTING
DATA = STR.
CATCH CX_SY_CONVERSION_CODEPAGE.
CATCH CX_SY_CODEPAGE_CONVERTER_INIT.
CATCH CX_PARAMETER_INVALID_TYPE.
CATCH CX_PARAMETER_INVALID_RANGE.
ENDTRY.
wa_solix-line = xstr.
append wa_solix to it_solix.
wa_soli-line = str.
append wa_soli to it_soli.
endloop.
try.
CALL FUNCTION 'SA_KW_RFC_FILENAME_EXT_GET'
EXPORTING
AREA = 'IWBSOLAR'
MIMETYPE = wa_attachment-type
IMPORTING
EXTENSION = i_ext
catch cx_sy_dyn_call_illegal_type.
endtry.
i_type = i_ext.
if i_ext <> 'pdf'.
try.
lo_document->add_attachment(
EXPORTING
i_attachment_type = i_type
i_attachment_subject = attachment_sub
i_att_content_hex = it_solix ).
CATCH cx_document_bcs.
endtry.
clear wa_solix.
refresh it_solix.
else.
TRY.
CALL METHOD LO_DOCUMENT->ADD_ATTACHMENT
EXPORTING
I_ATTACHMENT_TYPE = i_type
I_ATTACHMENT_SUBJECT = attachment_sub
* I_ATTACHMENT_SIZE =
* I_ATTACHMENT_LANGUAGE = SPACE
I_ATT_CONTENT_TEXT = it_soli
* I_ATT_CONTENT_HEX =
* I_ATTACHMENT_HEADER =
CATCH CX_DOCUMENT_BCS .
ENDTRY.
ENDIF.
endloop.
try.
lo_send_request->set_document( lo_document ).
CATCH cx_send_req_bcs.
endtry.
wa_selection_range-PARAMETER = 'address'.
wa_selection_range-field = 'e_mail'.
wa_selection_range-sign = 'I'.
wa_selection_range-option = 'EQ'.
wa_selection_range-low = receiver.
append wa_selection_range to it_selection_range.
try.
CALL FUNCTION 'BAPI_USER_GETLIST'
* EXPORTING
* MAX_ROWS = 0
* WITH_USERNAME = ' '
* IMPORTING
* ROWS =
TABLES
SELECTION_RANGE = it_selection_range
* SELECTION_EXP =
USERLIST = it_userlist
* RETURN =
catch cx_sy_dyn_call_illegal_type.
endtry.
read table it_userlist into wa_userlist index 1.
try.
lo_sender = cl_cam_address_bcs=>create_internet_address( sender ).
lo_send_request->set_sender(
EXPORTING
i_sender = lo_sender ).
catch cx_send_req_bcs.
catch cx_document_bcs.
catch cx_address_bcs.
return.
endtry.
try.
lo_recipient = cl_sapuser_bcs=>create( wa_userlist-USERNAME ).
lo_send_request->add_recipient(
EXPORTING
i_recipient = lo_recipient ).
* i_express = 'X' ).
catch cx_send_req_bcs.
catch cx_document_bcs.
catch cx_address_bcs.
endtry.
try.
** Send email
LO_SEND_REQUEST->SET_SEND_IMMEDIATELY( 'X' ).
lo_send_request->send( EXPORTING
i_with_error_screen = ' '
RECEIVING
result = result ).
COMMIT WORK.
CATCH CX_DOCUMENT_BCS.
CATCH CX_SEND_REQ_BCS INTO lo_message.
CATCH CX_ADDRESS_BCS.
text_val = lo_message->IF_MESSAGE~GET_TEXT( ).
endtry.
if result = 'X'.
message = 'E-Mail sent'.
else.
message = 'E-Mail not sent'.
endif.
ENDFUNCTION. -
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