Example usage for org.apache.commons.configuration Configuration isEmpty

Introduction

In this page you can find the example usage for org.apache.commons.configuration Configuration isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Check if the configuration is empty.

Usage

From source file:nl.tudelft.graphalytics.configuration.GraphParser.java

private void parseEdgePropertiesConfiguration() throws InvalidConfigurationException {
    Configuration epConfig = config.subset("edge-properties");
    if (epConfig.isEmpty()) {
        edgeProperties = new PropertyList();
    } else {//from   w  ww  .  j  a v  a  2 s.  co  m
        edgeProperties = parsePropertyList(epConfig, "edge", name);
    }
}

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From source file:org.apache.qpid.server.configuration.plugins.AbstractConfiguration.java

/** Helper method to print out list of keys in a {@link Configuration}. */
public static final void showKeys(Configuration config) {
    if (config.isEmpty()) {
        _logger.info("Configuration is empty");
    } else {/*w ww. jav  a  2  s  .c  o  m*/
        Iterator<?> keys = config.getKeys();
        while (keys.hasNext()) {
            String key = (String) keys.next();
            _logger.info("Configuration key: " + key);
        }
    }
}

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From source file:org.apache.qpid.server.configuration.VirtualHostConfiguration.java

private static Configuration loadConfiguration(String name, File configurationFile)
        throws ConfigurationException {
    Configuration configuration = null;
    if (configurationFile == null) {
        throw new IllegalConfigurationException("Virtualhost configuration file must be supplied!");
    } else {/*from www .j  av a2s  .  c om*/
        Configuration virtualHostConfig = XmlConfigurationUtilities.parseConfig(configurationFile);

        // check if it is an old virtual host configuration file which has an element of the same name as virtual host
        Configuration config = virtualHostConfig
                .subset("virtualhost." + XmlConfigurationUtilities.escapeTagName(name));
        if (config.isEmpty()) {
            // assume it is a new configuration which does not have an element of the same name as the virtual host
            configuration = virtualHostConfig;
        } else {
            configuration = config;
        }
    }
    return configuration;
}

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From source file:org.apache.samoa.topology.impl.StormSamoaUtils.java

public static Configuration getPropertyConfig(String configPropertyPath) {
    Configuration config = null;
    try {/*www.j av  a 2s.c  o  m*/
        config = new PropertiesConfiguration(configPropertyPath);
        if (null == config || config.isEmpty()) {
            logger.error("Configuration is null or empty at file  = {}", configPropertyPath);
            throw new RuntimeException("Configuration is null or empty : " + configPropertyPath);
        }
    } catch (ConfigurationException configurationException) {
        logger.error("ConfigurationException while reading property file = {}", configurationException);
        throw new RuntimeException(
                "ConfigurationException while reading property file : " + configPropertyPath);
    }
    return config;
}

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From source file:org.apache.torque.dsfactory.AbstractDataSourceFactory.java

/**
 * Encapsulates setting configuration properties on
 * <code>DataSource</code> objects.
 *
 * @param property the property to read from the configuration
 * @param c the configuration to read the property from
 * @param ds the <code>DataSource</code> instance to write the property to
 * @throws Exception if anything goes wrong
 */// w  w w  .j  a va  2  s . co  m
protected void setProperty(String property, Configuration c, Object ds) throws Exception {
    if (c == null || c.isEmpty()) {
        return;
    }

    String key = property;
    Class<?> dsClass = ds.getClass();
    int dot = property.indexOf('.');
    try {
        if (dot > 0) {
            property = property.substring(0, dot);

            MappedPropertyDescriptor mappedPD = new MappedPropertyDescriptor(property, dsClass);
            Class<?> propertyType = mappedPD.getMappedPropertyType();
            Configuration subProps = c.subset(property);
            // use reflection to set properties
            Iterator<?> j = subProps.getKeys();
            while (j.hasNext()) {
                String subProp = (String) j.next();
                String propVal = subProps.getString(subProp);
                Object value = ConvertUtils.convert(propVal, propertyType);
                PropertyUtils.setMappedProperty(ds, property, subProp, value);

                if (log.isDebugEnabled()) {
                    log.debug(
                            "setMappedProperty(" + ds + ", " + property + ", " + subProp + ", " + value + ")");
                }
            }
        } else {
            if ("password".equals(key)) {
                // do not log value of password
                // for this, ConvertUtils.convert cannot be used
                // as it also logs the value of the converted property
                // so it is assumed here that the password is a String
                String value = c.getString(property);
                PropertyUtils.setSimpleProperty(ds, property, value);
                if (log.isDebugEnabled()) {
                    log.debug("setSimpleProperty(" + ds + ", " + property + ", " + " (value not logged)" + ")");
                }
            } else {
                Class<?> propertyType = PropertyUtils.getPropertyType(ds, property);
                Object value = ConvertUtils.convert(c.getString(property), propertyType);
                PropertyUtils.setSimpleProperty(ds, property, value);

                if (log.isDebugEnabled()) {
                    log.debug("setSimpleProperty(" + ds + ", " + property + ", " + value + ")");
                }
            }
        }
    } catch (RuntimeException e) {
        throw new TorqueRuntimeException("Runtime error setting property " + property, e);
    } catch (Exception e) {
        log.error("Property: " + property + " value: " + c.getString(key) + " is not supported by DataSource: "
                + ds.getClass().getName());
    }
}

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From source file:org.apache.torque.dsfactory.AbstractDataSourceFactory.java

/**
 * Initializes the ConnectionPoolDataSource.
 *
 * @param configuration where to read the settings from
 * @throws TorqueException if a property set fails
 * @return a configured <code>ConnectionPoolDataSource</code>
 *//*  w w w  . j a v a2  s  .  c o  m*/
protected ConnectionPoolDataSource initCPDS(Configuration configuration) throws TorqueException {
    log.debug("Starting initCPDS");
    ConnectionPoolDataSource cpds = new DriverAdapterCPDS();
    Configuration c = Torque.getConfiguration();

    if (c == null || c.isEmpty()) {
        log.warn("Global Configuration not set," + " no Default connection pool data source configured!");
    } else {
        Configuration conf = c.subset(DEFAULT_CONNECTION_KEY);
        applyConfiguration(conf, cpds);
    }

    Configuration conf = configuration.subset(CONNECTION_KEY);
    applyConfiguration(conf, cpds);

    return cpds;
}

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From source file:org.apache.torque.dsfactory.JndiDataSourceFactory.java

/**
 * Initializes JNDI./*  w w  w. j a v  a2s  .  co  m*/
 *
 * @param configuration where to read the settings from
 * @throws TorqueException if a property set fails
 */
private void initJNDI(Configuration configuration) throws TorqueException {
    log.debug("Starting initJNDI");

    Configuration c = configuration.subset(JNDI_KEY);
    if (c == null || c.isEmpty()) {
        throw new TorqueException(
                "JndiDataSourceFactory requires a jndi " + "path property to lookup the DataSource in JNDI.");
    }

    try {
        Hashtable<String, Object> env = new Hashtable<String, Object>();
        for (Iterator<?> i = c.getKeys(); i.hasNext();) {
            String key = (String) i.next();
            if (key.equals(PATH_KEY)) {
                path = c.getString(key);
                if (log.isDebugEnabled()) {
                    log.debug("JNDI path: " + path);
                }
            } else if (key.equals(TIME_BETWEEN_LOOKUPS_KEY)) {
                ttl = c.getLong(key, ttl);
                if (log.isDebugEnabled()) {
                    log.debug("Time between context lookups: " + ttl);
                }
            } else {
                String value = c.getString(key);
                env.put(key, value);
                if (log.isDebugEnabled()) {
                    log.debug("Set jndi property: " + key + "=" + value);
                }
            }
        }

        ctx = new InitialContext(env);
        log.debug("Created new InitialContext");
        debugCtx(ctx);
    } catch (Exception e) {
        log.error("", e);
        throw new TorqueException(e);
    }
}

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From source file:org.apache.torque.dsfactory.PerUserPoolDataSourceFactory.java

/**
 * Initializes the Jdbc2PoolDataSource.//  w w w .  j  a  v  a2s . c om
 *
 * @param configuration where to read the settings from
 * @throws TorqueException if a property set fails
 * @return a configured <code>Jdbc2PoolDataSource</code>
 */
private PerUserPoolDataSource initJdbc2Pool(Configuration configuration) throws TorqueException {
    log.debug("Starting initJdbc2Pool");
    PerUserPoolDataSource dataSource = new PerUserPoolDataSource();
    Configuration c = Torque.getConfiguration();

    if (c == null || c.isEmpty()) {
        log.warn("Global Configuration not set," + " no Default pool data source configured!");
    } else {
        Configuration conf = c.subset(DEFAULT_POOL_KEY);
        applyConfiguration(conf, dataSource);
    }

    Configuration conf = configuration.subset(POOL_KEY);
    applyConfiguration(conf, dataSource);
    return dataSource;
}

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From source file:org.apache.torque.dsfactory.SharedPoolDataSourceFactory.java

/**
 * Initializes the Jdbc2PoolDataSource./*from   w  w  w .ja v  a  2  s .  c  o m*/
 *
 * @param configuration where to read the settings from
 * @throws TorqueException if a property set fails
 * @return a configured <code>Jdbc2PoolDataSource</code>
 */
private SharedPoolDataSource initJdbc2Pool(Configuration configuration) throws TorqueException {
    log.debug("Starting initJdbc2Pool");
    SharedPoolDataSource dataSource = new SharedPoolDataSource();
    Configuration c = Torque.getConfiguration();

    if (c == null || c.isEmpty()) {
        log.warn("Global Configuration not set," + " no Default pool data source configured!");
    } else {
        Configuration conf = c.subset(DEFAULT_POOL_KEY);
        applyConfiguration(conf, dataSource);
    }

    Configuration conf = configuration.subset(POOL_KEY);
    applyConfiguration(conf, dataSource);
    return dataSource;
}

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From source file:org.apache.torque.TorqueInstance.java

/**
 * Reads the adapter settings from the configuration and
 * assigns the appropriate database adapters and Id Generators
 * to the databases.// w  w w .ja va  2 s.  c  o  m
 *
 * @param conf the Configuration representing the torque section of the
 *        properties file.
 *
 * @throws TorqueException Any exceptions caught during processing will be
 *         rethrown wrapped into a TorqueException.
 */
private void initAdapters(Configuration conf) throws TorqueException {
    log.debug("initAdapters(" + conf + ")");

    Configuration c = conf.subset(Torque.DATABASE_KEY);
    if (c == null || c.isEmpty()) {
        String error = "Invalid configuration : " + "No keys starting with " + Torque.TORQUE_KEY + "."
                + Torque.DATABASE_KEY + " found in configuration";
        log.error(error);
        throw new TorqueException(error);
    }

    try {
        for (Iterator<?> it = c.getKeys(); it.hasNext();) {
            String key = (String) it.next();
            if (key.endsWith(Adapter.ADAPTER_KEY) || key.endsWith(Adapter.DRIVER_KEY)) {
                String adapterKey = c.getString(key);
                String handle = key.substring(0, key.indexOf('.'));

                Database database = getOrCreateDatabase(handle);
                Adapter adapter = null;

                if (StringUtils.equals(Adapter.AUTODETECT_ADAPTER, adapterKey)) {
                    Connection con = null;
                    try {
                        con = database.getDataSourceFactory().getDataSource().getConnection();
                        adapter = AdapterFactory.autoDetectAdapter(con);
                    } catch (SQLException e) {
                        log.error("Could not get product information from JDBC", e);
                    } finally {
                        closeConnection(con);
                    }
                } else {
                    adapter = AdapterFactory.create(adapterKey);
                }

                // Not supported, try manually defined adapter class
                if (adapter == null) {
                    String adapterClassName = c.getString(key + "." + adapterKey + ".className", null);
                    adapter = AdapterFactory.create(adapterKey, adapterClassName);
                }

                // register the adapter for this name
                database.setAdapter(adapter);
                log.debug("Adding " + adapterKey + " -> " + handle + " as Adapter");

                // add Id generators
                for (IDMethod idMethod : IDGeneratorFactory.ID_GENERATOR_METHODS) {
                    database.addIdGenerator(idMethod, IDGeneratorFactory.create(adapter, handle));
                }
            }
        }
    } catch (InstantiationException e) {
        log.error("Error creating a database adapter instance", e);
        throw new TorqueException(e);
    }

    // check that at least the default database has got an adapter.
    Database defaultDatabase = databases.get(getDefaultDB());
    if (defaultDatabase == null || defaultDatabase.getAdapter() == null) {
        String error = "Invalid configuration : " + "No adapter definition found for default DB "
                + "An adapter must be defined under " + Torque.TORQUE_KEY + "." + Torque.DATABASE_KEY + "."
                + getDefaultDB() + "." + Adapter.ADAPTER_KEY;
        log.error(error);
        throw new TorqueException(error);
    }
}

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