Examples with DigilibJobCenter digilib.util.DigilibJobCenter used on opensource projects

Example 1 with DigilibJobCenter

use of digilib.util.DigilibJobCenter in project digilib by robcast.

the class DigilibServletConfiguration method configure.

/*
     * (non-Javadoc)
     * 
     * @see digilib.conf.DigilibConfiguration#configure()
     */
@SuppressWarnings("unchecked")
public void configure(ServletContext context) {
    DigilibServletConfiguration config = this;
    super.configure();
    /*
         * configure factories
         */
    try {
        // initialise MetaFactory
        Class<FileMeta> fileMetaClass = (Class<FileMeta>) Class.forName(config.getAsString("filemeta-class"));
        config.setValue("servlet.filemeta.class", fileMetaClass);
        MetaFactory.setFileMetaClass(fileMetaClass);
        Class<DirMeta> dirMetaClass = (Class<DirMeta>) Class.forName(config.getAsString("dirmeta-class"));
        config.setValue("servlet.dirmeta.class", dirMetaClass);
        MetaFactory.setDirMetaClass(dirMetaClass);
    } catch (ClassNotFoundException e) {
        logger.error("Error setting Metadata classes!");
    }
    if (config.getAsBoolean("use-authorization")) {
        try {
            // initialise AuthnOpsFactory
            Class<AuthnOps> authnOpsClass = (Class<AuthnOps>) Class.forName(config.getAsString("authnops-class"));
            config.setValue("servlet.authnops.class", authnOpsClass);
            AuthnOpsFactory.setAuthnOpsClass(authnOpsClass);
        } catch (ClassNotFoundException e) {
            logger.error("Error setting AuthnOps class!");
        }
        try {
            // initialise AuthzOpsFactory
            Class<AuthzOps> authzOpsClass = (Class<AuthzOps>) Class.forName(config.getAsString("authzops-class"));
            config.setValue("servlet.authzops.class", authzOpsClass);
            AuthzOpsFactory.setAuthzOpsClass(authzOpsClass);
        } catch (ClassNotFoundException e) {
            logger.error("Error setting AuthzOps class!");
        }
    }
    try {
        // initialise DocuDirectoryFactory
        Class<DocuDirectory> docuDirectoryClass = (Class<DocuDirectory>) Class.forName(config.getAsString("docudirectory-class"));
        config.setValue("servlet.docudirectory.class", docuDirectoryClass);
        DocuDirectoryFactory.setDocuDirectoryClass(docuDirectoryClass);
        DocuDirectoryFactory.setDigilibConfig(this);
    } catch (ClassNotFoundException e) {
        logger.error("Error setting DocuDirectory class!");
    }
    /*
         * configure singletons
         */
    // set up the logger
    File logConf = ServletOps.getConfigFile((File) config.getValue("log-config-file"), context);
    if (logConf != null && logConf.canRead()) {
        DOMConfigurator.configure(logConf.getAbsolutePath());
        config.setValue("log-config-file", logConf);
    }
    // say hello in the log file
    logger.info("***** Digital Image Library Configuration (version " + getVersion() + ") *****");
    try {
        // directory cache
        DocuDirCache dirCache;
        if (config.getAsBoolean("use-mapping")) {
            // with mapping file
            File mapConf = ServletOps.getConfigFile((File) config.getValue("mapping-file"), context);
            dirCache = new AliasingDocuDirCache(FileClass.IMAGE, mapConf, config);
            config.setValue("mapping-file", mapConf);
        } else {
            // without mapping
            dirCache = new DocuDirCache(FileClass.IMAGE, this);
        }
        config.setValue(DIR_CACHE_KEY, dirCache);
        // useAuthorization
        if (config.getAsBoolean("use-authorization")) {
            // set auth config file
            File authConf = ServletOps.getConfigFile((File) config.getValue("auth-file"), context);
            config.setValue("auth-file", authConf);
            // initialise AuthnOps
            AuthnOps authnOps = AuthnOpsFactory.getAuthnOpsInstance();
            authnOps.init(this);
            config.setValue(AUTHN_OP_KEY, authnOps);
            // initialise AuthzOps (requires AuthnOps)
            AuthzOps authzOps = AuthzOpsFactory.getAuthzOpsInstance();
            authzOps.init(this);
            config.setValue(AUTHZ_OP_KEY, authzOps);
        }
        // digilib worker threads
        int nt = config.getAsInt("worker-threads");
        int mt = config.getAsInt("max-waiting-threads");
        DigilibJobCenter<DocuImage> imageExecutor = new DigilibJobCenter<DocuImage>(nt, mt, false, IMAGEEXECUTOR_KEY);
        config.setValue(IMAGEEXECUTOR_KEY, imageExecutor);
        /*
             * set as the servlets main config
             */
        setContextConfig(context);
    } catch (Exception e) {
        logger.error("Error configuring digilib servlet:", e);
    }
}

Example 2 with DigilibJobCenter

use of digilib.util.DigilibJobCenter in project digilib by robcast.

the class DigilibServletConfiguration method contextDestroyed.

/**
 * Clean up local resources
 */
public void contextDestroyed(ServletContextEvent cte) {
    logger.info("DigilibServletConfiguration shutting down.");
    // get current config from servlet context
    ServletContext context = cte.getServletContext();
    DigilibServletConfiguration config = getContextConfig(context);
    @SuppressWarnings("unchecked") DigilibJobCenter<DocuImage> imageExecutor = (DigilibJobCenter<DocuImage>) config.getValue(IMAGEEXECUTOR_KEY);
    if (imageExecutor != null) {
        // shut down image thread pool
        List<Runnable> rj = imageExecutor.shutdownNow();
        int nrj = rj.size();
        if (nrj > 0) {
            logger.error("Still running threads when shutting down image job queue: " + nrj);
        }
    }
}

Example 3 with DigilibJobCenter

use of digilib.util.DigilibJobCenter in project digilib by robcast.

the class PDFServletConfiguration method contextDestroyed.

/* (non-Javadoc)
     * @see digilib.conf.DigilibServletConfiguration#contextDestroyed(javax.servlet.ServletContextEvent)
     */
@Override
public void contextDestroyed(ServletContextEvent sce) {
    super.contextDestroyed(sce);
    ServletContext context = sce.getServletContext();
    DigilibServletConfiguration config = PDFServletConfiguration.getCurrentConfig(context);
    @SuppressWarnings("unchecked") DigilibJobCenter<DocuImage> pdfExecutor = (DigilibJobCenter<DocuImage>) config.getValue(PDF_EXECUTOR_KEY);
    if (pdfExecutor != null) {
        // shut down pdf thread pool
        List<Runnable> rj = pdfExecutor.shutdownNow();
        int nrj = rj.size();
        if (nrj > 0) {
            logger.error("Still running threads when shutting down PDF job queue: " + nrj);
        }
    }
    @SuppressWarnings("unchecked") DigilibJobCenter<DocuImage> pdfImageExecutor = (DigilibJobCenter<DocuImage>) config.getValue(PDF_IMAGEEXECUTOR_KEY);
    if (pdfImageExecutor != null) {
        // shut down pdf image thread pool
        List<Runnable> rj = pdfImageExecutor.shutdownNow();
        int nrj = rj.size();
        if (nrj > 0) {
            logger.error("Still running threads when shutting down PDF-image job queue: " + nrj);
        }
    }
}

Example 4 with DigilibJobCenter

use of digilib.util.DigilibJobCenter in project digilib by robcast.

the class PDFServletConfiguration method configurePdfServlet.

/**
 * @param config
 * @param context
 */
protected void configurePdfServlet(ServletContext context) {
    PDFServletConfiguration config = this;
    // PDF worker threads
    int pnt = config.getAsInt("pdf-worker-threads");
    int pmt = config.getAsInt("pdf-max-waiting-threads");
    DigilibJobCenter<OutputStream> pdfExecutor = new DigilibJobCenter<OutputStream>(pnt, pmt, false, "servlet.worker.pdfexecutor");
    config.setValue(PDF_EXECUTOR_KEY, pdfExecutor);
    // PDF image worker threads
    int pint = config.getAsInt("pdf-image-worker-threads");
    int pimt = config.getAsInt("pdf-image-max-waiting-threads");
    DigilibJobCenter<DocuImage> pdfImageExecutor = new DigilibJobCenter<DocuImage>(pint, pimt, false, "servlet.worker.pdfimageexecutor");
    config.setValue(PDF_IMAGEEXECUTOR_KEY, pdfImageExecutor);
    /*
         * set up temporary directories
         */
    String temp_fn = config.getAsString("pdf-temp-dir");
    File temp_directory = new File(temp_fn);
    if (!temp_directory.exists()) {
        // try to create
        temp_directory.mkdirs();
    } else {
        // rid the temporary directory of possible incomplete document files
        FileOps.emptyDirectory(temp_directory);
    }
    config.setValue(PDF_WORKDIR_KEY, temp_directory);
    String cache_fn = config.getAsString("pdf-cache-dir");
    File cache_directory = new File(cache_fn);
    if (!cache_directory.exists()) {
        // try to create
        cache_directory.mkdirs();
    }
    config.setValue(PDF_CACHEDIR_KEY, cache_directory);
    /*
         * set as the PDF servlets main config
         */
    context.setAttribute(PDF_SERVLET_CONFIG_KEY, this);
}