Examples of org.osgi.framework.launch.FrameworkFactory

org.osgi.framework.launch.FrameworkFactory
A factory for creating {@link Framework} instances.
A framework implementation jar must contain the following resource:
```
 /META-INF/services/org.osgi.framework.launch.FrameworkFactory 
```
This UTF-8 encoded resource must contain the name of the framework implementation's FrameworkFactory implementation class. Space and tab characters, including blank lines, in the resource must be ignored. The number sign ( {@code '#'} \u0023) and all characters following it on eachline are a comment and must be ignored.
Launchers can find the name of the FrameworkFactory implementation class in the resource and then load and construct a FrameworkFactory object for the framework implementation. The FrameworkFactory implementation class must have a public, no-argument constructor. Java™ SE 6 introduced the {@code ServiceLoader} class which can create a FrameworkFactory instance fromthe resource. @ThreadSafe @author $Id: c1647bcb8416b6dfa9e37c6cc146bb54c7173526 $

            InputStream is = classLoader.getResourceAsStream("META-INF/services/" + FrameworkFactory.class.getName());
            BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            factoryClass = br.readLine();
            br.close();
        }
        FrameworkFactory factory = (FrameworkFactory) classLoader.loadClass(factoryClass).newInstance();
        framework = factory.newFramework(new StringMap(configProps, false));
        framework.start();
        processAutoProperties(framework.getBundleContext());
        // Start lock monitor
        new Thread() {
            public void run() {

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    @Override
    public void execute(CrankstartContext crankstartContext, CrankstartCommandLine commandLine) throws Exception {
        // TODO this should work
        // FrameworkFactory frameworkFactory = java.util.ServiceLoader.load(FrameworkFactory.class).iterator().next();
        final FrameworkFactory frameworkFactory = (FrameworkFactory)getClass().getClassLoader().loadClass("org.apache.felix.framework.FrameworkFactory").newInstance();
        crankstartContext.setOsgiFramework(frameworkFactory.newFramework(crankstartContext.getOsgiFrameworkProperties()));
        crankstartContext.getOsgiFramework().start();
        final int nBundles = crankstartContext.getOsgiFramework().getBundleContext().getBundles().length;
        log.info("OSGi framework started, {} bundles installed", nBundles);
        
        // Unless specified otherwise, stop processing the crankstart file if this is not the first

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            InputStream is = classLoader.getResourceAsStream("META-INF/services/" + FrameworkFactory.class.getName());
            BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            factoryClass = br.readLine();
            br.close();
        }
        FrameworkFactory factory = (FrameworkFactory) classLoader.loadClass(factoryClass).newInstance();
        framework = factory.newFramework(new StringMap(configProps, false));
        framework.init();
        // Process properties
        loadStartupProperties(configProps);
        processAutoProperties(framework.getBundleContext());

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        options.addOption("v", "verbose", false, "Verbose output");
    }


    public static void main(String[] args) throws Exception
    {
        FrameworkFactory factory = getFrameworkFactory();


        try
        {
            Parser parser = new PosixParser();
            CommandLine cl = parser.parse(options, args);


            if (cl.hasOption('?'))
            {
                printHelp();
            }
            else
            {
                verbose = cl.hasOption('v');


                Map<String, String> config = buildConfig(cl);


                framework = factory.newFramework(config);
                framework.init();
                framework.start();


                Server server = launch(cl);

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        }


        try
        {
            // Create an instance of the framework.
            FrameworkFactory factory = getFrameworkFactory();
            m_fwk = factory.newFramework(configProps);
            // Initialize the framework, but don't start it yet.
            m_fwk.init();
            // Use the system bundle context to process the auto-deploy
            // and auto-install/auto-start properties.
            AutoProcessor.process(configProps, m_fwk.getBundleContext());

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            }
        };
    }


    protected Framework createFramework(T conf) {
        FrameworkFactory factory = conf.getFrameworkFactory();
        if (factory == null)
            throw new IllegalStateException("Cannot obtain " + FrameworkFactory.class.getName());
        Map<String, String> config = conf.getFrameworkConfiguration();
        return factory.newFramework(config);
    }

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    }


    private void launchOSGiFramework() throws Exception {
        // Start up the OSGI framework
        ServiceLoader<FrameworkFactory> loader = ServiceLoader.load(FrameworkFactory.class);
        FrameworkFactory factory = loader.iterator().next();
        framework = factory.newFramework(new StringMap(configProps, false));


        framework.init();


        BundleContext bundleContext = framework.getBundleContext();

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        Map config = new HashMap(conf.getFrameworkConfiguration());
        if (config.get(FelixConstants.LOG_LOGGER_PROP) == null) {
            config.put(FelixConstants.LOG_LOGGER_PROP, logger);
        }


        FrameworkFactory factory = conf.getFrameworkFactory();
        return factory.newFramework(config);
    }

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        List<File> bundleDirs = getBundleRepos();
        ArtifactResolver resolver = new SimpleMavenResolver(bundleDirs);


        // Start up the OSGI framework
        ClassLoader classLoader = createClassLoader(resolver);
        FrameworkFactory factory = loadFrameworkFactory(classLoader);
        framework = factory.newFramework(new StringMap(config.props, false));
        framework.init();
        framework.getBundleContext().addFrameworkListener(lockCallback);
        framework.start();


        FrameworkStartLevel sl = framework.adapt(FrameworkStartLevel.class);

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            InputStream is = classLoader.getResourceAsStream("META-INF/services/" + FrameworkFactory.class.getName());
            BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            factoryClass = br.readLine();
            br.close();
        }
        FrameworkFactory factory = (FrameworkFactory) classLoader.loadClass(factoryClass).newInstance();
        return factory;
    }

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