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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 class SnappyLoader
{ {
public static final String KEY_SNAPPY_LIB_PATH = "org.xerial.snappy.lib.path"; 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_LIB_NAME = "org.xerial.snappy.lib.name";
public static final String KEY_SNAPPY_TEMPDIR = "org.xerial.snappy.tempdir"; 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_BUNDLED_LIBS = "org.xerial.snappy.disable.bundled.libs";
public static final String KEY_SNAPPY_DISABLE_NATIVE_INJECTION = "org.xerial.snappy.disable.inject";
private static boolean isLoaded = false; private static boolean isLoaded = false;
private static SnappyNativeAPI api = null; private static SnappyNativeAPI api = null;
private static ClassLoader getRootClassLoader() { private static ClassLoader getRootClassLoader() {
ClassLoader cl = Thread.currentThread().getContextClassLoader(); ClassLoader cl = Thread.currentThread().getContextClassLoader();
@ -97,7 +96,6 @@ public class SnappyLoader
cl = cl.getParent(); cl = cl.getParent();
} }
return cl; return cl;
//return ClassLoader.getSystemClassLoader();
} }
private static byte[] getByteCode(String resourcePath) throws IOException { private static byte[] getByteCode(String resourcePath) throws IOException {
@ -166,36 +164,17 @@ public class SnappyLoader
* *
* @return * @return
*/ */
static SnappyNativeAPI load() { static synchronized SnappyNativeAPI load() {
if (api != null) if (api != null)
return api; return api;
boolean useNativeCodeInjection = !Boolean.parseBoolean(System.getProperty(KEY_SNAPPY_DISABLE_NATIVE_INJECTION,
"false"));
//System.out.println("use native code injection: " + useNativeCodeInjection);
try { try {
if (useNativeCodeInjection) { if (!hasInjectedNativeLoader()) {
if (!hasInjectedNativeLoader()) { // Prepare SnappyNativeLoader or LocalSnappyNativeLoader
// Prepare SnappyNativeLoader or LocalSnappyNativeLoader Class< ? > nativeLoader = injectSnappyNativeLoader();
Class< ? > nativeLoader = injectSnappyNativeLoader(); // Load the JNI code
// Load the JNI code loadNativeLibrary(nativeLoader);
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");
}
}
} }
isLoaded = true; isLoaded = true;