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java-samples/ZFilePrint.java at master · zsystems/java-samples · GitHub
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ZFilePrint.java
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ZFilePrint.java
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/*
* %Z%%W% %I%
*
* =========================================================================
* Licensed Materials - Property of IBM
* "Restricted Materials of IBM"
* (C) Copyright IBM Corp. 2005. All Rights Reserved
*
* DISCLAIMER:
* The following [enclosed] code is sample code created by IBM
* Corporation. This sample code is not part of any standard IBM product
* and is provided to you solely for the purpose of assisting you in the
* development of your applications. The code is provided 'AS IS',
* without warranty of any kind. IBM shall not be liable for any damages
* arising out of your use of the sample code, even if they have been
* advised of the possibility of such damages.
* =========================================================================
*/
package
com
.
ibm
.
jzos
.
sample
;
import
com
.
ibm
.
jzos
.
ZFile
;
import
com
.
ibm
.
jzos
.
ZUtil
;
/**
* Sample program that prints an EBCDIC MVS dataset pointed to by //INPUT DD
* to System.out (stdout).
* <p>
* The dataset is opened using the ZFile class in record mode.
* Note that "noseek" is used so that the file is opened in sequential
* mode, which dramatically increases I/O performance.
*
* @see com.ibm.jzos.ZFile
*/
public
class
ZFilePrint
{
public
static
void
main
(
String
[]
args
)
throws
Exception
{
ZFile
zFile
=
new
ZFile
(
"//DD:INPUT"
,
"rb,type=record,noseek"
);
try
{
byte
[]
recBuf
=
new
byte
[
zFile
.
getLrecl
()];
int
nRead
;
String
encoding
=
ZUtil
.
getDefaultPlatformEncoding
();
while
((
nRead
=
zFile
.
read
(
recBuf
)) >=
0
) {
String
line
=
new
String
(
recBuf
,
0
,
nRead
,
encoding
);
System
.
out
.
println
(
line
);
};
}
finally
{
zFile
.
close
();
}
}
}
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