org.cryptomator.jni.JniModule.java Source code

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Here is the source code for org.cryptomator.jni.JniModule.java

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/*******************************************************************************
 * Copyright (c) 2016 Sebastian Stenzel and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the accompanying LICENSE.txt.
 *
 * Contributors:
 *     Sebastian Stenzel - initial API and implementation
 *******************************************************************************/
package org.cryptomator.jni;

import java.util.Optional;

import javax.inject.Singleton;

import org.apache.commons.lang3.SystemUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import dagger.Lazy;
import dagger.Module;
import dagger.Provides;

@Module
public class JniModule {

    private static final Logger LOG = LoggerFactory.getLogger(JniModule.class);

    @Provides
    @Singleton
    public Optional<MacFunctions> macFunctions(Lazy<MacFunctions> macFunctions) {
        if (SystemUtils.IS_OS_MAC_OSX) {
            try {
                System.loadLibrary(MacFunctions.LIB_NAME);
                LOG.info("loaded {}", System.mapLibraryName(MacFunctions.LIB_NAME));
                return Optional.of(macFunctions.get());
            } catch (UnsatisfiedLinkError e) {
                LOG.error("Could not load JNI lib {} from path {}", System.mapLibraryName(MacFunctions.LIB_NAME),
                        System.getProperty("java.library.path"));
            }
        }
        return Optional.empty();
    }

    @Provides
    @Singleton
    public Optional<WinFunctions> winFunctions(Lazy<WinFunctions> winFunction) {
        if (SystemUtils.IS_OS_WINDOWS) {
            try {
                System.loadLibrary(WinFunctions.LIB_NAME);
                LOG.info("loaded {}", System.mapLibraryName(WinFunctions.LIB_NAME));
                return Optional.of(winFunction.get());
            } catch (UnsatisfiedLinkError e) {
                e.printStackTrace();
                LOG.error("Could not load JNI lib {} from path {}", System.mapLibraryName(WinFunctions.LIB_NAME),
                        System.getProperty("java.library.path"));
            }
        }
        return Optional.empty();
    }

}