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Discard the local JNI code loader and the org.xerial.snappy.disable.inject option

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This commit is contained in:
Taro L. Saito 2011-08-02 15:07:59 +09:00
parent f0ef649651
commit aa04d562f8
1 changed files with 12 additions and 33 deletions
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45
src/main/java/org/xerial/snappy/SnappyLoader.java
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@ -82,14 +82,13 @@ import java.util.Properties;
*/
public class SnappyLoader
{
public static final String KEY_SNAPPY_LIB_PATH = "org.xerial.snappy.lib.path";
public static final String KEY_SNAPPY_LIB_NAME = "org.xerial.snappy.lib.name";
public static final String KEY_SNAPPY_TEMPDIR = "org.xerial.snappy.tempdir";
public static final String KEY_SNAPPY_DISABLE_BUNDLED_LIBS = "org.xerial.snappy.disable.bundled.libs";
public static final String KEY_SNAPPY_DISABLE_NATIVE_INJECTION = "org.xerial.snappy.disable.inject";
public static final String KEY_SNAPPY_LIB_PATH = "org.xerial.snappy.lib.path";
public static final String KEY_SNAPPY_LIB_NAME = "org.xerial.snappy.lib.name";
public static final String KEY_SNAPPY_TEMPDIR = "org.xerial.snappy.tempdir";
public static final String KEY_SNAPPY_DISABLE_BUNDLED_LIBS = "org.xerial.snappy.disable.bundled.libs";
private static boolean isLoaded = false;
private static SnappyNativeAPI api = null;
private static boolean isLoaded = false;
private static SnappyNativeAPI api = null;
private static ClassLoader getRootClassLoader() {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
@ -97,7 +96,6 @@ public class SnappyLoader
cl = cl.getParent();
}
return cl;
//return ClassLoader.getSystemClassLoader();
}
private static byte[] getByteCode(String resourcePath) throws IOException {
@ -166,36 +164,17 @@ public class SnappyLoader
*
* @return
*/
static SnappyNativeAPI load() {
static synchronized SnappyNativeAPI load() {
if (api != null)
return api;
boolean useNativeCodeInjection = !Boolean.parseBoolean(System.getProperty(KEY_SNAPPY_DISABLE_NATIVE_INJECTION,
"false"));
//System.out.println("use native code injection: " + useNativeCodeInjection);
try {
if (useNativeCodeInjection) {
if (!hasInjectedNativeLoader()) {
// Prepare SnappyNativeLoader or LocalSnappyNativeLoader
Class< ? > nativeLoader = injectSnappyNativeLoader();
// Load the JNI code
loadNativeLibrary(nativeLoader);
}
}
else {
if (!isLoaded) {
// load locally
File nativeLib = findNativeLibrary();
if (nativeLib != null) {
System.load(nativeLib.getAbsolutePath());
}
else {
// Load pre-installed libsnappyjava (in the path -Djava.library.path)
System.loadLibrary("snappyjava");
}
}
if (!hasInjectedNativeLoader()) {
// Prepare SnappyNativeLoader or LocalSnappyNativeLoader
Class< ? > nativeLoader = injectSnappyNativeLoader();
// Load the JNI code
loadNativeLibrary(nativeLoader);
}
isLoaded = true;