Examples with HopConfig org.apache.hop.core.config.HopConfig used on opensource projects

Example 1 with HopConfig

use of org.apache.hop.core.config.HopConfig in project hop by apache.

the class HopEnvironment method init.

public static void init(List<IPluginType> pluginTypes) throws HopException {
    SettableFuture<Boolean> ready;
    if (initialized.compareAndSet(null, ready = SettableFuture.create())) {
        // Swaps out System Properties for a thread safe version.
        // This is not that important since we're no longer using System properties
        // However, plugins might still make use of it so keep it around
        // 
        System.setProperties(ConcurrentMapProperties.convertProperties(System.getProperties()));
        try {
            // 
            if (!HopClientEnvironment.isInitialized()) {
                HopClientEnvironment.init();
            }
            // Register the native types and the plugins for the various plugin types...
            // 
            pluginTypes.forEach(PluginRegistry::addPluginType);
            PluginRegistry.init();
            // Also read the list of variables.
            // 
            HopVariablesList.init();
            // If the HopConfig system properties is empty, initialize with the variables...
            // 
            HopConfig hopConfig = HopConfig.getInstance();
            List<DescribedVariable> configVariables = hopConfig.getDescribedVariables();
            if (configVariables.isEmpty()) {
                List<DescribedVariable> describedVariables = HopVariablesList.getInstance().getEnvironmentVariables();
                for (DescribedVariable describedVariable : describedVariables) {
                    hopConfig.setDescribedVariable(new DescribedVariable(describedVariable));
                }
            }
            // 
            for (DescribedVariable describedVariable : hopConfig.getDescribedVariables()) {
                if (StringUtils.isNotEmpty(describedVariable.getName())) {
                    System.setProperty(describedVariable.getName(), Const.NVL(describedVariable.getValue(), ""));
                }
            }
            // Inform the outside world that we're ready with the init of the Hop Environment
            // Others might want to register extra plugins that perhaps were not found automatically
            // 
            ExtensionPointHandler.callExtensionPoint(LogChannel.GENERAL, null, HopExtensionPoint.HopEnvironmentAfterInit.name(), PluginRegistry.getInstance());
            ready.set(true);
        } catch (Throwable t) {
            ready.setException(t);
            // If it's a HopException, throw it, otherwise wrap it in a HopException
            throw ((t instanceof HopException) ? (HopException) t : new HopException(t));
        }
    } else {
        // A different thread is initializing
        ready = initialized.get();
        // Block until environment is initialized
        try {
            ready.get();
        } catch (Throwable t) {
            throw new HopException(t);
        }
    }
}