import org.apache.commons.configuration2.CompositeConfiguration; //导入依赖的package包/类
public Configuration getClientConfiguration() {
    Configuration clientConfig = new CompositeConfiguration();
    Iterator<String> iter = getKeys();
    while (iter.hasNext()) {
        String key = iter.next();
        if (key.startsWith(CLIENT_PREFIX)) {
            clientConfig.setProperty(key, getProperty(key));
        }
    }
    return clientConfig;
}
 

import org.apache.commons.configuration2.CompositeConfiguration; //导入依赖的package包/类
@VisibleForTesting
Configuration create(String versionPath, String sitePath, String defaultPath) {

    CompositeConfiguration composite = new CompositeConfiguration();

    try {

        createClasspath(versionPath).ifPresent(composite::addConfiguration);

        createSystem().ifPresent(composite::addConfiguration);

        createFilePath(sitePath).ifPresent(composite::addConfiguration);

        createClasspath(defaultPath).ifPresent(composite::addConfiguration);

    } catch (Exception e) {

        throw new RuntimeException("Failed to load configurations.", e);

    }

    return composite;

}
 

import org.apache.commons.configuration2.CompositeConfiguration; //导入依赖的package包/类
/**
 * The main method.
 * 
 * @param args
 *            the arguments
 */
public static void main(String[] args)
{
	System.out.println(getFiles(".", "z:\\dev\\yajsw\\..\\yajsw\\*.jar")
			.size());
	try
	{
		// String
		// fileName=FilenameUtils.separatorsToSystem("C:\\init\\MOBILEguard\\yajsw/lib/jvmstat/*.jar");
		// System.out.println("FileName: "+fileName);
		CompositeConfiguration compConfig = new CompositeConfiguration();
		AbstractConfiguration configuraton = new BaseConfiguration();
		compConfig.addConfiguration(new EnvironmentConfiguration());
		configuraton.setProperty("wrapper.java.classpath.1",
				"${VERSANT_ROOT}/lib/jvi.*jar");
		configuraton.setProperty("wrapper.java.classpath.2",
				"${GROOVY_HOME}/lib/*.jar");
		compConfig.addConfiguration(configuraton);
		System.out.println("Configuration: "
				+ ConfigurationConverter.getProperties(compConfig));
		System.out.println("subset: "
				+ ConfigurationConverter.getProperties(compConfig
						.subset("wrapper.java")));

		// Collection files=FileUtils.getFiles("../..",
		// "C:/versant/7_0_1/lib/jvi*.jar");
		// Collection collection=
		// org.apache.commons.io.FileUtils.listFiles(new File("C:/"),
		// new WildcardFileFilter("jvi*.jar"), new
		// WildcardFileFilter("*jar"));
		// File[] files= new
		// File("C:").listFiles((FilenameFilter)FileFilterUtils.nameFileFilter("C:/versant/7_0_1/lib/jvi*.jar"));

		//
		// FileUtils.getFiles("C:/versant/7_0_1/lib/", "jvi*.jar");
		// System.out.println("FileList="+
		// FileUtils.getFiles("C:/versant/7_0_1/lib/", "jvi*.jar"));
		// java.util.Arrays.asList(files));
	}
	catch (Exception ex)
	{
		ex.printStackTrace();
	}
}
 

import org.apache.commons.configuration2.CompositeConfiguration; //导入依赖的package包/类
public CompositeConfiguration getSystemConfiguration()
{
	return _systemConfiguration;
}
 

import org.apache.commons.configuration2.CompositeConfiguration; //导入依赖的package包/类
/**
 * Create a {@link Configuration} instance,
 * composed of multiple configurations which are enumerated in {@link ConfigurationType}.
 *
 * @return Composite configuration instance.
 */
@VisibleForTesting
AbstractConfiguration createConfiguration() {

    CompositeConfiguration composite = new CompositeConfiguration();

    ConfigurationType[] types = ConfigurationType.values();

    Arrays.stream(types).forEach(s -> s.get().ifPresent(composite::addConfiguration));

    return composite;

}
 

import org.apache.commons.configuration2.CompositeConfiguration; //导入依赖的package包/类
/**
 * Adds the configuration stored on disk to the current set of parameters. The
 * file <code>fileName</code> must be a valid configuration file as per Javas
 * <code>Properties</code> class.
 * 
 * @param fileName
 */
public static void setConfiguration(String fileName) {

	try {
		AptaLogger.log(Level.INFO, Configuration.class, "Reading configuration from file.");

		builder = new FileBasedConfigurationBuilder<org.apache.commons.configuration2.FileBasedConfiguration>(
				PropertiesConfiguration.class)
						.configure(new Parameters().properties().setFileName(fileName)
								.setListDelimiterHandler(new DefaultListDelimiterHandler(',')));

		
		// Create a composite configuration which allows to keep user parameters and defaults separated
		CompositeConfiguration  cc = new CompositeConfiguration(); 
		
		cc.addConfiguration(builder.getConfiguration(), true); // changes will be saved in the user config
		cc.addConfiguration(getDefaultParametersBuilder().getConfiguration(), false);
					
		parameters = cc;
		
	} catch (Exception e) {

		AptaLogger.log(Level.SEVERE, Configuration.class,
				"Error, could not read configuration file. Please check it for correctness");
		AptaLogger.log(Level.SEVERE, Configuration.class, e);
		e.printStackTrace();
	}


	// TODO: Sanity checks!
}
 

import org.apache.commons.configuration2.CompositeConfiguration; //导入依赖的package包/类
/**
 * Creates an empty configuration and configures the class 
 * @param filename location at which the config should be stored in the future
 */
public static void createConfiguration(Path filePath) {
	
	try {
		
		builder = new FileBasedConfigurationBuilder<FileBasedConfiguration>(PropertiesConfiguration.class)
		    .configure(new Parameters().properties()
		        //.setFile(filePath.toFile())
		        .setListDelimiterHandler(new DefaultListDelimiterHandler(',')));
		
		org.apache.commons.configuration2.Configuration userParameters = builder.getConfiguration();
		

		//We need to explicitly save the file before setting it in the builder, for whatever reason...
		builder.getFileHandler().save(filePath.toFile());
		builder.getFileHandler().setFile(filePath.toFile());
		
		// Create a composite configuration which allows to keep user parameters and defaults separated
		CompositeConfiguration  cc = new CompositeConfiguration();
		
		cc.addConfiguration(builder.getConfiguration(), true); // changes will be saved in the user config
		cc.addConfiguration(getDefaultParametersBuilder().getConfiguration(), false);
		
		parameters = cc;
		
	} catch (Exception e) {

		AptaLogger.log(Level.SEVERE, Configuration.class,
				"Error, could not create configuration file.");
		AptaLogger.log(Level.SEVERE, Configuration.class, e);
		e.printStackTrace();
	}

}