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rocksdb
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585c759c
R
rocksdb
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rocksdb
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体验新版 GitCode,发现更多精彩内容 >>
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585c759c
编写于
11月 15, 2014
作者:
A
Adam Retter
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差异文件
Make sure to use the correct Java classloader for loading the RocksDB
Native Library
上级
c3915abb
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
28 addition
and
4 deletion
+28
-4
java/org/rocksdb/NativeLibraryLoader.java
java/org/rocksdb/NativeLibraryLoader.java
+27
-3
java/org/rocksdb/RocksDB.java
java/org/rocksdb/RocksDB.java
+1
-1
未找到文件。
java/org/rocksdb/NativeLibraryLoader.java
浏览文件 @
585c759c
...
...
@@ -11,11 +11,35 @@ import org.rocksdb.util.Environment;
* The shared library is extracted to a temp folder and loaded from there.
*/
public
class
NativeLibraryLoader
{
//singleton
private
static
final
NativeLibraryLoader
instance
=
new
NativeLibraryLoader
();
private
static
final
String
sharedLibraryName
=
Environment
.
getJniLibraryName
(
"rocksdb"
);
private
static
final
String
tempFilePrefix
=
"librocksdbjni"
;
private
static
final
String
tempFileSuffix
=
"."
+
Environment
.
getJniLibraryExtension
();
public
static
void
loadLibraryFromJar
(
final
String
tmpDir
)
/**
* Get a reference to the NativeLibraryLoader
*
* @return The NativeLibraryLoader
*/
public
static
NativeLibraryLoader
getInstance
()
{
return
instance
;
}
/**
* Attempts to extract the native RocksDB library
* from the classpath and load it
*
* @param tmpDir A temporary directory to use
* to copy the native library to. If null,
* or the empty string, we rely on Java's
* {@see java.io.File#createTempFile(String, String) }
* function to provide a temporary location.
* The temporary file will be registered for deletion
* on exit.
*/
public
void
loadLibraryFromJar
(
final
String
tmpDir
)
throws
IOException
{
final
File
temp
;
if
(
tmpDir
==
null
||
tmpDir
.
equals
(
""
))
{
...
...
@@ -30,8 +54,8 @@ public class NativeLibraryLoader {
temp
.
deleteOnExit
();
}
// attempt to copy the library from the J
AR
to the temp destination
try
(
final
InputStream
is
=
ClassLoader
.
getSystem
ClassLoader
().
getResourceAsStream
(
sharedLibraryName
))
{
// attempt to copy the library from the J
ar file
to the temp destination
try
(
final
InputStream
is
=
getClass
().
get
ClassLoader
().
getResourceAsStream
(
sharedLibraryName
))
{
if
(
is
==
null
)
{
throw
new
RuntimeException
(
sharedLibraryName
+
" was not found inside JAR."
);
}
else
{
...
...
java/org/rocksdb/RocksDB.java
浏览文件 @
585c759c
...
...
@@ -44,7 +44,7 @@ public class RocksDB extends RocksObject {
}
try
{
NativeLibraryLoader
.
loadLibraryFromJar
(
tmpDir
);
NativeLibraryLoader
.
getInstance
().
loadLibraryFromJar
(
tmpDir
);
}
catch
(
IOException
e
)
{
...
...
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