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Administrator
h2database
Commits
e4fdc82c
提交
e4fdc82c
authored
2月 24, 2010
作者:
Thomas Mueller
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
New LOB storage.
上级
9259aadc
隐藏空白字符变更
内嵌
并排
正在显示
1 个修改的文件
包含
101 行增加
和
34 行删除
+101
-34
TestLob.java
h2/src/test/org/h2/test/utils/TestLob.java
+101
-34
没有找到文件。
h2/src/test/org/h2/test/utils/TestLob.java
浏览文件 @
e4fdc82c
...
...
@@ -16,10 +16,12 @@ import java.sql.PreparedStatement;
import
java.sql.ResultSet
;
import
java.sql.SQLException
;
import
java.sql.Statement
;
import
java.util.ArrayList
;
import
java.util.Random
;
import
org.h2.constant.ErrorCode
;
import
org.h2.message.DbException
;
import
org.h2.tools.DeleteDbFiles
;
import
org.h2.util.New
;
import
org.h2.util.Utils
;
import
org.h2.util.IOUtils
;
...
...
@@ -76,12 +78,11 @@ public class TestLob {
*/
static
class
LobInputStream
extends
InputStream
{
private
byte
[]
buffer
=
new
byte
[
BLOCK_LENGTH
];
private
byte
[]
buffer
;
private
int
pos
;
private
PreparedStatement
prepSelectBlock
;
private
int
bufferEnd
;
private
long
remaining
;
private
long
next
;
private
int
pos
;
LobInputStream
(
PreparedStatement
prepSelectBlock
,
long
first
,
long
length
)
{
this
.
next
=
first
;
...
...
@@ -91,9 +92,10 @@ public class TestLob {
public
int
read
()
throws
IOException
{
fillBuffer
();
if
(
pos
>=
bufferEnd
)
{
if
(
remaining
<=
0
)
{
return
-
1
;
}
remaining
--;
return
buffer
[
pos
++]
&
255
;
}
...
...
@@ -110,33 +112,31 @@ public class TestLob {
return
0
;
}
int
read
=
0
;
int
todo
;
// while (length > 0) {
// fillBuffer();
//
// if (r < 0) {
// break;
// }
// read += r;
// off += r;
// len -= r;
// }
// return read == 0 ? -1 : read;
//
// int len = 0;
// while (length > 0 && remaining > 0) {
// }
return
read
;
while
(
length
>
0
)
{
fillBuffer
();
if
(
remaining
<=
0
)
{
break
;
}
int
len
=
(
int
)
Math
.
min
(
length
,
remaining
);
len
=
Math
.
min
(
len
,
buffer
.
length
-
pos
);
System
.
arraycopy
(
buffer
,
pos
,
buff
,
off
,
len
);
read
+=
len
;
remaining
-=
len
;
off
+=
len
;
length
-=
len
;
}
return
read
==
0
?
-
1
:
read
;
}
private
void
fillBuffer
()
throws
IOException
{
if
(
buffer
!=
null
&&
pos
<
buffer
End
)
{
if
(
buffer
!=
null
&&
pos
<
buffer
.
length
)
{
return
;
}
if
(
remaining
<=
0
)
{
return
;
}
try
{
// select id, next, data from block where id = ?
prepSelectBlock
.
setLong
(
1
,
next
);
ResultSet
rs
=
prepSelectBlock
.
executeQuery
();
if
(!
rs
.
next
())
{
...
...
@@ -145,12 +145,13 @@ public class TestLob {
io
.
initCause
(
e
);
throw
e
;
}
next
=
rs
.
getLong
(
2
);
buffer
=
rs
.
getBytes
(
3
);
pos
=
0
;
}
catch
(
SQLException
e
)
{
throw
DbException
.
convertToIOException
(
e
);
}
int
todo
;
//
//
// compress / decompress
// int len = readInt();
// if (decompress == null) {
// // EOF
...
...
@@ -190,7 +191,33 @@ public class TestLob {
init
(
c
);
c
=
DriverManager
.
getConnection
(
"jdbc:h2:data/test"
);
int
len
=
128
*
1024
;
// int len = 10 * 1024 * 1024;
// block: 1394
// regular: 725
// int len = 16 * 1024;
// block: 1817
// regular: 4552
int
len
=
32
*
1024
;
// block: 1770
// regular: 2255
// int len = 64 * 1024;
// block: 1776
// regular: 1385
// 1024 * 1024
// block: 1682
// regular: 455
// int len = 128 * 1024;
// block: 1516
// regular: 1020
int
repeat
=
6
;
int
count
=
(
int
)
(
52428800L
/
len
);
byte
[]
buff
=
new
byte
[
len
];
Random
random
=
new
Random
(
1
);
random
.
nextBytes
(
buff
);
...
...
@@ -213,21 +240,52 @@ public class TestLob {
// Profiler prof = new Profiler();
// prof.setInterval(1);
// prof.startCollecting();
int
x
=
0
;
for
(
int
j
=
0
;
j
<
6
;
j
++)
{
int
x
=
0
,
y
=
0
;
ArrayList
<
LobId
>
list
=
New
.
arrayList
();
for
(
int
j
=
0
;
j
<
repeat
;
j
++)
{
boolean
regular
=
(
j
&
1
)
==
1
;
long
time
=
System
.
currentTimeMillis
();
for
(
int
i
=
0
;
i
<
400
;
i
++)
{
prep
.
setInt
(
1
,
x
++);
for
(
int
i
=
0
;
i
<
count
;
i
++)
{
if
(
regular
)
{
prep
.
setInt
(
1
,
x
++);
prep
.
setBinaryStream
(
2
,
new
ByteArrayInputStream
(
buff
),
len
);
prep
.
execute
();
}
else
{
addLob
(
new
ByteArrayInputStream
(
buff
),
-
1
,
-
1
);
LobId
id
=
addLob
(
new
ByteArrayInputStream
(
buff
),
-
1
,
-
1
);
list
.
add
(
id
);
}
}
System
.
out
.
println
((
regular
?
"regular: "
:
"block: "
)
+
(
System
.
currentTimeMillis
()
-
time
));
}
System
.
out
.
println
(
"read------------"
);
x
=
0
;
y
=
0
;
prep
=
conn
.
prepareStatement
(
"select data from test where id = ?"
);
byte
[]
buff2
=
new
byte
[
1024
];
for
(
int
j
=
0
;
j
<
repeat
;
j
++)
{
boolean
regular
=
(
j
&
1
)
==
1
;
long
time
=
System
.
currentTimeMillis
();
for
(
int
i
=
0
;
i
<
count
*
10
;
i
++)
{
InputStream
in2
;
if
(
regular
)
{
prep
.
setInt
(
1
,
x
++
%
repeat
);
ResultSet
rs
=
prep
.
executeQuery
();
rs
.
next
();
in2
=
rs
.
getBinaryStream
(
1
);
}
else
{
in2
=
getInputStream
(
list
.
get
(
y
++
%
repeat
));
}
while
(
true
)
{
int
len2
=
in2
.
read
(
buff2
);
if
(
len2
<
0
)
{
break
;
}
}
}
System
.
out
.
println
((
regular
?
"regular: "
:
"block: "
)
+
(
System
.
currentTimeMillis
()
-
time
));
}
// prof.stopCollecting();
// System.out.println(prof.getTop(5));
c
.
close
();
...
...
@@ -236,7 +294,7 @@ public class TestLob {
private
void
init
(
Connection
newConn
)
throws
SQLException
{
this
.
conn
=
newConn
;
Statement
stat
=
conn
.
createStatement
();
stat
.
execute
(
"set undo_log 0"
);
//
stat.execute("set undo_log 0");
// stat.execute("set redo_log_binary 0");
// TODO support incremental garbage collection
stat
.
execute
(
"create table if not exists block(id bigint primary key, next bigint, data binary)"
);
...
...
@@ -248,12 +306,17 @@ public class TestLob {
rs
=
stat
.
executeQuery
(
"select max(id) from lob"
);
rs
.
next
();
nextLob
=
rs
.
getLong
(
1
)
+
1
;
prepInsertBlock
=
conn
.
prepareStatement
(
"insert into block values(?, ?, ?)"
);
prepInsertBlock
=
conn
.
prepareStatement
(
"insert into block
(id, next, data)
values(?, ?, ?)"
);
prepDeleteBlock
=
conn
.
prepareStatement
(
"delete from block where id = ?"
);
prepInsertLob
=
conn
.
prepareStatement
(
"insert into lob values(?, ?, ?, ?)"
);
prepDeleteLob
=
conn
.
prepareStatement
(
"delete from lob where id = ?"
);
prepInsertLob
=
conn
.
prepareStatement
(
"insert into lob(id, length, block, table) values(?, ?, ?, ?)"
);
prepSelectBlock
=
conn
.
prepareStatement
(
"select id, next, data from block where id = ?"
);
}
private
void
deleteLob
(
int
lobId
)
{
//
}
private
LobId
addLob
(
InputStream
in
,
long
maxLength
,
int
table
)
throws
SQLException
{
byte
[][]
buff
=
new
byte
[
2
][
BLOCK_LENGTH
];
if
(
maxLength
<
0
)
{
...
...
@@ -272,16 +335,19 @@ public class TestLob {
length
+=
len
;
maxLength
-=
len
;
if
(
blockId
>
0
)
{
// insert into block(id, next, data) values(?, ?, ?)
prepInsertBlock
.
setLong
(
1
,
nextBlock
++);
prepInsertBlock
.
setLong
(
2
,
nextBlock
);
prepInsertBlock
.
setBytes
(
3
,
buff
[(
blockId
-
1
)
&
1
]);
prepInsertBlock
.
execute
();
}
}
// insert into block(id, next, data) values(?, ?, ?)
prepInsertBlock
.
setLong
(
1
,
nextBlock
++);
prepInsertBlock
.
setLong
(
2
,
firstBlock
);
prepInsertBlock
.
setBytes
(
3
,
buff
[(
blockId
-
1
)
&
1
]);
prepInsertBlock
.
execute
();
// insert into lob(id, length, block, table) values(?, ?, ?, ?)
prepInsertLob
.
setLong
(
1
,
lob
);
prepInsertLob
.
setLong
(
2
,
length
);
prepInsertLob
.
setLong
(
3
,
firstBlock
);
...
...
@@ -302,6 +368,7 @@ public class TestLob {
private
void
deleteBlocks
(
long
first
,
long
last
)
throws
SQLException
{
for
(
long
id
=
first
;
id
<=
last
;
id
++)
{
// delete from block where id = ?
prepDeleteBlock
.
setLong
(
1
,
id
);
prepDeleteBlock
.
execute
();
}
...
...
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