Java Switch类代码示例

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main(final String[] arguments)
{
   try
   {
      final SimpleJSAP jsap = new SimpleJSAP(
         "Main Application",
         "Demonstrate JSAP",
         new Parameter[]
            {new FlaggedOption("file", STRING_PARSER, NO_DEFAULT, REQUIRED, 'f', "file", "File path/name."),
             new Switch("verbose", 'v', "verbose", "Requests verbose output." )});
      final JSAPResult parsedResult = jsap.parse(arguments);
      if (jsap.messagePrinted())
      {
         out.println(jsap.getHelp());
         System.exit( -1 );
      }

      out.println("File path/name is '" + parsedResult.getString("file") + "'.");
      out.println("Verbosity level is " + parsedResult.getBoolean("verbose"));
   }
   catch (JSAPException jsapException)
   {
      out.println("Exception encountered during parsing command line arguments - " + jsapException);
   }
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main(String[] args) throws IOException, JSAPException {

	SimpleJSAP jsap = new SimpleJSAP(GZIPArchiveReader.class.getName(), "Writes some random records on disk.",
		new Parameter[] {
			new Switch("fully", 'f', "fully",
				"Whether to read fully the record (and do a minimal cosnsistency check)."),
			new UnflaggedOption("path", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY,
				"The path to read from."), });

	JSAPResult jsapResult = jsap.parse(args);
	if (jsap.messagePrinted())
	    System.exit(1);

	final boolean fully = jsapResult.getBoolean("fully");
	GZIPArchiveReader gzar = new GZIPArchiveReader(new FileInputStream(jsapResult.getString("path")));
	for (;;) {
	    ReadEntry e = gzar.getEntry();
	    if (e == null)
		break;
	    InputStream inflater = e.lazyInflater.get();
	    if (fully)
		ByteStreams.toByteArray(inflater);
	    e.lazyInflater.consume();
	    System.out.println(e);
	}
    }
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main( final String[] arg ) throws IOException, JSAPException {
	final SimpleJSAP simpleJSAP = new SimpleJSAP( JungAdapter.class.getName(), "Reads a graph with a given basename, optionally its transpose, and writes it on standard output in Pajek format.", 
			new Parameter[] { 
				new Switch( "offline", 'o', "offline", "Use the offline load method to reduce memory consumption. It usually works, but your mileage may vary." ),
				new UnflaggedOption( "basename", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY, "The basename of the source graph." ),
				new UnflaggedOption( "transpose", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.NOT_REQUIRED, JSAP.NOT_GREEDY, "The basename of the transpose. If unspecified, the JungAdapter constructor will be provided with null as a parameter. This usually works, but your mileage may vary." )
	});

	final JSAPResult jsapResult = simpleJSAP.parse( arg );
	if ( simpleJSAP.messagePrinted() ) System.exit( 1 );
	final boolean offline = jsapResult.userSpecified( "offline" );

	final ImmutableGraph graph = offline ? ImmutableGraph.loadOffline( jsapResult.getString( "basename" ) ) : ImmutableGraph.load( jsapResult.getString( "basename" ) );
	final ImmutableGraph transpose = jsapResult.userSpecified( "transpose" ) ? ( offline ? ImmutableGraph.loadOffline( jsapResult.getString( "transpose" ) ) : ImmutableGraph.load( jsapResult.getString( "transpose" ) ) ) : null; 
	
	final PrintWriter printWriter = new PrintWriter( System.out );
	new PajekNetWriter<Integer, Long>().save( new JungAdapter( graph, transpose ), printWriter );
	printWriter.flush();
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main( String arg[] ) throws IOException, JSAPException, IllegalArgumentException, ClassNotFoundException, IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchMethodException {
	SimpleJSAP jsap = new SimpleJSAP( SequentialHyperBall.class.getName(), "Prints an approximation of the neighbourhood function.",
		new Parameter[] {
			new FlaggedOption( "log2m", JSAP.INTEGER_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, 'l', "log2m", "The logarithm of the number of registers." ),
			new FlaggedOption( "upperBound", JSAP.LONGSIZE_PARSER, Long.toString( Long.MAX_VALUE ), JSAP.NOT_REQUIRED, 'u', "upper-bound", "An upper bound to the number of iteration (default: the graph size)." ),
			new FlaggedOption( "threshold", JSAP.DOUBLE_PARSER, Double.toString( 1E-3 ), JSAP.NOT_REQUIRED, 't', "threshould", "A threshould that will be used to stop the computation by absolute or relative increment." ),
			new Switch( "spec", 's', "spec", "The source is not a basename but rather a specification of the form <ImmutableGraphImplementation>(arg,arg,...)." ),
			new UnflaggedOption( "basename", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY, "The basename of the graph." ),
		}		
	);

	JSAPResult jsapResult = jsap.parse( arg );
	if ( jsap.messagePrinted() ) System.exit( 1 );
	
	final boolean spec = jsapResult.getBoolean( "spec" );
	final String basename = jsapResult.getString( "basename" );
	final ProgressLogger pl = new ProgressLogger( LOGGER );
	final int log2m = jsapResult.getInt( "log2m" );
	
	final ImmutableGraph graph = spec ? ObjectParser.fromSpec( basename, ImmutableGraph.class, GraphClassParser.PACKAGE ) : ImmutableGraph.loadOffline( basename );
	
	SequentialHyperBall shb = new SequentialHyperBall( graph, log2m, pl, Util.randomSeed() );
	TextIO.storeDoubles( shb.approximateNeighbourhoodFunction( jsapResult.getLong( "upperBound" ), jsapResult.getDouble( "threshold" ) ), System.out );
	shb.close();
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main( String arg[] ) throws IOException, JSAPException, IllegalArgumentException, ClassNotFoundException, IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchMethodException {
	SimpleJSAP jsap = new SimpleJSAP( ExactNeighbourhoodFunction.class.getName(), "Prints the neighbourhood function.",
		new Parameter[] {
			new Switch( "spec", 's', "spec", "The source is not a basename but rather a specification of the form <ImmutableGraphImplementation>(arg,arg,...)." ),
			new UnflaggedOption( "basename", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY, "The basename of the graph." ),
		}		
	);

	JSAPResult jsapResult = jsap.parse( arg );
	if ( jsap.messagePrinted() ) System.exit( 1 );
	
	final boolean spec = jsapResult.getBoolean( "spec" );
	final String basename = jsapResult.getString( "basename" );
	final ProgressLogger pl = new ProgressLogger( LOGGER );
	
	final ImmutableGraph graph = spec ? ObjectParser.fromSpec( basename, ImmutableGraph.class, GraphClassParser.PACKAGE ) : ImmutableGraph.loadOffline( basename );
	
	final ExactNeighbourhoodFunction neighbourhoodFunction = new ExactNeighbourhoodFunction( graph, pl );
	pl.start( "Computing..." );
	TextIO.storeDoubles( neighbourhoodFunction.neighbourhoodFunction(), System.out );
	pl.done();
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public VelocityContext getContext() {
    VelocityContext vc = new VelocityContext();
    Iterator it = params.iterator();
    while(it.hasNext()) {
        Object cur = it.next();
        if(cur instanceof Switch) {
            Switch sw = (Switch)cur;
            if(result.getBoolean(sw.getID())) {
                vc.put(sw.getID(), Boolean.TRUE);
            }
        } else {
            Option param = (Option)cur;
            if(param.isList()) {
                Object[] paramResult = result.getObjectArray(param.getID());
                if(paramResult.length > 0) {
                    vc.put(param.getID(), paramResult);
                }
            } else if (result.getObject(param.getID()) != null) {
                vc.put(param.getID(), result.getObject(param.getID()));
            }
        }
    }
    return vc;
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main(final String arg[]) throws Exception {
	final SimpleJSAP jsap = new SimpleJSAP(Agent.class.getName(), "Starts a BUbiNG agent (note that you must enable JMX by means of the standard Java system properties).",
			new Parameter[] {
				new FlaggedOption("weight", JSAP.INTEGER_PARSER, "1", JSAP.NOT_REQUIRED, 'w', "weight", "The agent weight."),
				new FlaggedOption("group", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, 'g', "group", "The JGroups group identifier (must be the same for all cooperating agents)."),
				new FlaggedOption("jmxHost", JSAP.STRING_PARSER, InetAddress.getLocalHost().getHostAddress(), JSAP.REQUIRED, 'h', "jmx-host", "The IP address (possibly specified by a host name) that will be used to expose the JMX RMI connector to other agents."),
				new FlaggedOption("rootDir", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.NOT_REQUIRED, 'r', "root-dir", "The root directory."),
				new Switch("new", 'n', "new", "Start a new crawl"),
				new FlaggedOption("properties", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, 'P', "properties", "The properties used to configure the agent."),
				new UnflaggedOption("name", JSAP.STRING_PARSER, JSAP.REQUIRED, "The agent name (an identifier that must be unique across the group).")
		});

		final JSAPResult jsapResult = jsap.parse(arg);
		if (jsap.messagePrinted()) System.exit(1);

		// JMX *must* be set up.
		final String portProperty = System.getProperty(JMX_REMOTE_PORT_SYSTEM_PROPERTY);
		if (portProperty == null) throw new IllegalArgumentException("You must specify a JMX service port using the property " + JMX_REMOTE_PORT_SYSTEM_PROPERTY);

		final String name = jsapResult.getString("name");
		final int weight = jsapResult.getInt("weight");
		final String group = jsapResult.getString("group");
		final String host = jsapResult.getString("jmxHost");
		final int port = Integer.parseInt(portProperty);

		final BaseConfiguration additional = new BaseConfiguration();
		additional.addProperty("name", name);
		additional.addProperty("group", group);
		additional.addProperty("weight", Integer.toString(weight));
		additional.addProperty("crawlIsNew", Boolean.valueOf(jsapResult.getBoolean("new")));
		if (jsapResult.userSpecified("rootDir")) additional.addProperty("rootDir", jsapResult.getString("rootDir"));

		new Agent(host, port, new RuntimeConfiguration(new StartupConfiguration(jsapResult.getString("properties"), additional)));
		System.exit(0); // Kills remaining FetchingThread instances, if any.
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main(String[] args) throws JSAPException, IOException, InterruptedException {
	final SimpleJSAP jsap = new SimpleJSAP(RandomReadWritesTest.class.getName(), "Writes some random records on disk.",
		new Parameter[] {
			new FlaggedOption("random", JSAP.INTEGER_PARSER, "100", JSAP.NOT_REQUIRED, 'r', "random", "The number of random record to sample from."),
			new FlaggedOption("body", JSAP.INTSIZE_PARSER, "4K", JSAP.NOT_REQUIRED, 'b', "body", "The maximum size of the random generated body (in bytes)."),
			new Switch("fully", 'f', "fully", "Whether to read fully the record (and do a minimal sequential cosnsistency check)."),
			new Switch("writeonly", 'w', "writeonly", "Whether to skip the read part (if present, 'fully' will be ignored."),
			new UnflaggedOption("path", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY, "The path to write to."),
			new UnflaggedOption("records", JSAP.INTSIZE_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY, "The numer of records to write."),
	});

	final JSAPResult jsapResult = jsap.parse(args);
	if (jsap.messagePrinted()) System.exit(1);

	final String path = jsapResult.getString("path");
	final boolean compress = path.endsWith(".gz");
	final boolean fully = jsapResult.getBoolean("fully");
	final int parallel = compress ? 1 : 0;

	final int body = jsapResult.getInt("body");

	final WarcRecord[] rnd = prepareRndRecords(jsapResult.getInt("random"), RESPONSE_PROBABILITY, MAX_NUMBER_OF_HEADERS, MAX_LENGTH_OF_HEADER, body);
	final int[] sequence = writeRecords(path, jsapResult.getInt("records"), rnd, parallel);
	if (! jsapResult.getBoolean("writeonly"))
		readRecords(path, sequence, body, fully, compress);

}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main(String[] rawArguments) throws Exception {
	SimpleJSAP jsap = new SimpleJSAP(
			WikipediaTextArchiveProducer.class.getName(),
			"Build wikipedia graph.",
			new Parameter[] {
		new UnflaggedOption( "input", JSAP.STRING_PARSER, JSAP.REQUIRED,
					"The pages-articles.xml input file, from Wikipedia." ),
		new Switch("bzip", 'z', "bzip", "Interpret the input file as bzipped"),
		new UnflaggedOption( "resolver", JSAP.STRING_PARSER, JSAP.REQUIRED,
				"resolver" ),	
		new UnflaggedOption( "output", JSAP.STRING_PARSER, JSAP.REQUIRED,
				"output graph basename" )
	});
	
	JSAPResult args = jsap.parse( rawArguments );
	if ( jsap.messagePrinted() ) System.exit( 1 );
	
	WikipediaDocumentSequence wikipediaDocumentSequence = new WikipediaDocumentSequence(
			args.getString("input"), 
			args.getBoolean("bzip"), 
			"http://en.wikipedia.org/wiki/",
			true, // parse text article
			false // do not keep all namespaces
		);
	
	DocumentSequenceImmutableGraph g = new DocumentSequenceImmutableGraph(
			wikipediaDocumentSequence,
			8, // should be the anchor field
			(VirtualDocumentResolver) SerializationUtils.read(args.getString("resolver"))
			);
	
	BVGraph.store(g, args.getString("output"));
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main(String[] rawArguments) throws Exception {
	
	SimpleJSAP jsap = new SimpleJSAP(
			WikipediaCategoryProducer.class.getName(),
			"Read a wikipedia dump and produces 3 files with " +
			"serialized Java objects: \n" +
			" * pageId2Name.ser, an Int2ObjectMap from page ids to " +
			"wikipedia page names \n" +
			" * catName2Id.ser, an Object2IntMap from category ids to " +
			"category names \n" +
			" * page2cat.ser, an Int2ObjectMap from page ids to an IntSet" +
			"of category ids",
			new Parameter[] {
		new UnflaggedOption( "input", JSAP.STRING_PARSER, JSAP.REQUIRED,
					"The pages-articles.xml input file, from Wikipedia." ),
		new UnflaggedOption( "basename", JSAP.STRING_PARSER, JSAP.REQUIRED,
					"The basename of the output files (p.e. a Directory with / in the end)" ),
		new Switch("bzip", 'z', "bzip", "Interpret the input file as bzipped"),
		new Switch("verbose", 'v', "verbose", "Print every category found to StdErr") 
	});
	
	// Initializing input read
	JSAPResult args = jsap.parse( rawArguments );
	if ( jsap.messagePrinted() ) System.exit( 1 );
	
	WikipediaDocumentSequence wikipediaDocumentSequence = new WikipediaDocumentSequence(
			args.getString("input"),
			args.getBoolean("bzip"),
			"http://en.wikipedia.org/wiki/", true,
			true // keep all namespaces
		);
	WikipediaCategoryProducer reader =
			new WikipediaCategoryProducer(wikipediaDocumentSequence);
	reader.setPlainUrisFile(args.getString("basename") + "pages.uris");
	reader.extractAllData();
	reader.saveAllTo(args.getString("basename"));

	
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main(final String[] arg) throws IOException, JSAPException, ClassNotFoundException {

		final SimpleJSAP jsap = new SimpleJSAP(ListSpeedTest.class.getName(), "Test the speed of a list",
				new Parameter[] {
					new Switch("random", 'r', "random", "Do a random test on at most 1 million strings."),
					new UnflaggedOption("list", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY, "The filename for the serialised list.")
		});

		JSAPResult jsapResult = jsap.parse(arg);
		if (jsap.messagePrinted()) return;

		final String listName = jsapResult.getString("list");

		final LongList list = (LongList)BinIO.loadObject(listName);
		long total = 0;
		int n = list.size();
		for(int k = 13; k-- != 0;) {
			long time = -System.currentTimeMillis();
			for(int i = 0; i < n; i++) {
				list.getLong(i);
				if (i++ % 100000 == 0) System.out.print('.');
			}
			System.out.println();
			time += System.currentTimeMillis();
			if (k < 10) total += time;
			System.out.println(time / 1E3 + "s, " + (time * 1E3) / n + " \u00b5s/item");
		}
		System.out.println("Average: " + Util.format(total / 10E3) + "s, " + Util.format((total * 1E3) / (10 * n)) + " \u00b5s/item");
	}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main( String arg[] ) throws IOException, JSAPException {		
	SimpleJSAP jsap = new SimpleJSAP( ErdosRenyiGraph.class.getName(), "Generates an Erd\u0151s-R\u00E9nyi random graph and stores it as a BVGraph.",
			new Parameter[] {
		new Switch( "loops", 'l', "loops", "Whether the graph should include self-loops." ), 
		new FlaggedOption( "p", JSAP.DOUBLE_PARSER, JSAP.NO_DEFAULT, JSAP.NOT_REQUIRED, 'p', "The probability of generating an arc." ),
		new FlaggedOption( "m", JSAP.LONGSIZE_PARSER, JSAP.NO_DEFAULT, JSAP.NOT_REQUIRED, 'm', "The expected number of arcs." ),
		new UnflaggedOption( "basename", JSAP.STRING_PARSER, JSAP.REQUIRED, "The basename of the output graph file." ),
		new UnflaggedOption( "n", JSAP.INTEGER_PARSER, JSAP.REQUIRED, "The number of nodes." ),
	});
	JSAPResult jsapResult = jsap.parse( arg );
	if ( jsap.messagePrinted() ) System.exit( 1 );

	final String baseName = jsapResult.getString( "basename" );
	final int n = jsapResult.getInt( "n" );
	final boolean loops = jsapResult.getBoolean( "loops" );
	
	if ( jsapResult.userSpecified( "p" ) && jsapResult.userSpecified( "m" ) ) {
		System.err.println( "Options p and m cannot be specified together" );
		System.exit( 1 );
	}
	if ( ! jsapResult.userSpecified( "p" ) && ! jsapResult.userSpecified( "m" ) ) {
		System.err.println( "Exactly one of the options p and m must be specified" );
		System.exit( 1 );
	}
	
	BVGraph.store( ( jsapResult.userSpecified( "p" ) ? new ErdosRenyiGraph( n, jsapResult.getDouble( "p" ), loops ) : new ErdosRenyiGraph( n, jsapResult.getLong( "m" ), loops ) ), baseName, new ProgressLogger() );
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main( String arg[] ) throws IOException, JSAPException {
	SimpleJSAP jsap = new SimpleJSAP( NeighbourhoodFunction.class.getName(), 
			"Prints the neighbourhood function of a graph, computing it via breadth-first visits.",
			new Parameter[] {
		new FlaggedOption( "logInterval", JSAP.LONG_PARSER, Long.toString( ProgressLogger.DEFAULT_LOG_INTERVAL ), JSAP.NOT_REQUIRED, 'l', "log-interval", "The minimum time interval between activity logs in milliseconds." ),
		new Switch( "expand", 'e', "expand", "Expand the graph to increase speed (no compression)." ),
		new FlaggedOption( "threads", JSAP.INTSIZE_PARSER, "0", JSAP.NOT_REQUIRED, 'T', "threads", "The number of threads to be used. If 0, the number will be estimated automatically." ),
		new UnflaggedOption( "basename", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY, "The basename of the graph." ),
	}		
	);

	JSAPResult jsapResult = jsap.parse( arg );
	if ( jsap.messagePrinted() ) System.exit( 1 );

	final String basename = jsapResult.getString( "basename" );
	final int threads = jsapResult.getInt( "threads" );
	ProgressLogger pl = new ProgressLogger( LOGGER, jsapResult.getLong( "logInterval" ), TimeUnit.MILLISECONDS );
	ImmutableGraph g =ImmutableGraph.load( basename );
	if ( jsapResult.userSpecified( "expand" ) ) g = new ArrayListMutableGraph( g ).immutableView();
	TextIO.storeLongs( computeExact( g, threads, pl ), System.out );
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main( String arg[] ) throws IOException, JSAPException {
	SimpleJSAP jsap = new SimpleJSAP( ConnectedComponents.class.getName(),
			"Computes the connected components of a symmetric graph of given basename. The resulting data is saved " +
			"in files stemmed from the given basename with extension .wcc (a list of binary integers specifying the " +
			"component of each node) and .wccsizes (a list of binary integer specifying the size of each component). " +
			"The symmetric graph can also be specified using a generic (non-symmetric) graph and its transpose.",
			new Parameter[] {
				new Switch( "sizes", 's', "sizes", "Compute component sizes." ),
				new Switch( "renumber", 'r', "renumber", "Renumber components in decreasing-size order." ),
				new FlaggedOption( "logInterval", JSAP.LONG_PARSER, Long.toString( ProgressLogger.DEFAULT_LOG_INTERVAL ), JSAP.NOT_REQUIRED, 'l', "log-interval", "The minimum time interval between activity logs in milliseconds." ), 
				new Switch( "mapped", 'm', "mapped", "Do not load the graph in main memory, but rather memory-map it." ),
				new FlaggedOption( "threads", JSAP.INTSIZE_PARSER, "0", JSAP.NOT_REQUIRED, 'T', "threads", "The number of threads to be used. If 0, the number will be estimated automatically." ),
				new FlaggedOption( "basenamet", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.NOT_REQUIRED, 't', "transpose", "The basename of the transpose, in case the graph is not symmetric." ),
				new UnflaggedOption( "basename", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY, "The basename of a symmetric graph (or of a generic graph, if the transpose is provided, too)." ),
				new UnflaggedOption( "resultsBasename", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.NOT_REQUIRED, JSAP.NOT_GREEDY, "The basename of the resulting files." ),
			}
	);

	JSAPResult jsapResult = jsap.parse( arg );
	if ( jsap.messagePrinted() ) System.exit( 1 );

	final String basename = jsapResult.getString( "basename" );
	final String basenamet = jsapResult.getString( "basenamet" );
	final String resultsBasename = jsapResult.getString( "resultsBasename", basename );
	final int threads = jsapResult.getInt( "threads" );
	ProgressLogger pl = new ProgressLogger( LOGGER, jsapResult.getLong( "logInterval" ), TimeUnit.MILLISECONDS );

	ImmutableGraph graph = jsapResult.userSpecified( "mapped" ) ? ImmutableGraph.loadMapped( basename ) : ImmutableGraph.load( basename, pl );
	ImmutableGraph grapht = basenamet == null ? null : jsapResult.userSpecified( "mapped" ) ? ImmutableGraph.loadMapped( basenamet ) : ImmutableGraph.load( basenamet, pl );
	final ConnectedComponents components = ConnectedComponents.compute( basenamet != null ? new UnionImmutableGraph( graph, grapht ) : graph, threads, pl );

	if ( jsapResult.getBoolean( "sizes" ) || jsapResult.getBoolean( "renumber" ) ) {
		final int size[] = components.computeSizes();
		if ( jsapResult.getBoolean( "renumber" ) ) components.sortBySize( size );
		if ( jsapResult.getBoolean( "sizes" ) ) BinIO.storeInts( size, resultsBasename + ".wccsizes" );
	}
	BinIO.storeInts( components.component, resultsBasename + ".wcc" );
}
 

import com.martiansoftware.jsap.Switch; //导入依赖的package包/类
public static void main( String arg[] ) throws IOException, JSAPException {
	SimpleJSAP jsap = new SimpleJSAP( StronglyConnectedComponents.class.getName(), 
			"Computes the strongly connected components (and optionally the buckets) of a graph of given basename. The resulting data is saved " +
			"in files stemmed from the given basename with extension .scc (a list of binary integers specifying the " +
			"component of each node), .sccsizes (a list of binary integer specifying the size of each component) and .buckets " +
			" (a serialised LongArrayBigVector specifying buckets). Please use suitable JVM options to set a large stack size.",
			new Parameter[] {
		new Switch( "sizes", 's', "sizes", "Compute component sizes." ),
		new Switch( "renumber", 'r', "renumber", "Renumber components in decreasing-size order." ),
		new Switch( "buckets", 'b', "buckets", "Compute buckets (nodes belonging to a bucket component, i.e., a terminal nondangling component)." ),
		new FlaggedOption( "filter", new ObjectParser( LabelledArcFilter.class, GraphClassParser.PACKAGE ), JSAP.NO_DEFAULT, JSAP.NOT_REQUIRED, 'f', "filter", "A filter for labelled arcs; requires the provided graph to be arc labelled." ),
		new FlaggedOption( "logInterval", JSAP.LONG_PARSER, Long.toString( ProgressLogger.DEFAULT_LOG_INTERVAL ), JSAP.NOT_REQUIRED, 'l', "log-interval", "The minimum time interval between activity logs in milliseconds." ),
		new UnflaggedOption( "basename", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.REQUIRED, JSAP.NOT_GREEDY, "The basename of the graph." ),
		new UnflaggedOption( "resultsBasename", JSAP.STRING_PARSER, JSAP.NO_DEFAULT, JSAP.NOT_REQUIRED, JSAP.NOT_GREEDY, "The basename of the resulting files." ),
	}		
	);

	JSAPResult jsapResult = jsap.parse( arg );
	if ( jsap.messagePrinted() ) System.exit( 1 );

	final String basename = jsapResult.getString( "basename" );
	final String resultsBasename = jsapResult.getString( "resultsBasename", basename );
	final LabelledArcFilter filter = (LabelledArcFilter)jsapResult.getObject( "filter" );
	ProgressLogger pl = new ProgressLogger( LOGGER, jsapResult.getLong( "logInterval" ), TimeUnit.MILLISECONDS );

	final StronglyConnectedComponents components = 
		filter != null ? StronglyConnectedComponents.compute( ArcLabelledImmutableGraph.load( basename ), filter, jsapResult.getBoolean( "buckets" ), pl )
				: StronglyConnectedComponents.compute( ImmutableGraph.load( basename ), jsapResult.getBoolean( "buckets" ), pl );

	if ( jsapResult.getBoolean( "sizes" ) || jsapResult.getBoolean( "renumber" ) ) {
		final int size[] = components.computeSizes();
		if ( jsapResult.getBoolean( "renumber" ) ) components.sortBySize( size );
		if ( jsapResult.getBoolean( "sizes" ) ) BinIO.storeInts( size, resultsBasename + ".sccsizes" );
	}
	BinIO.storeInts(  components.component, resultsBasename + ".scc" );
	if ( components.buckets != null ) BinIO.storeObject( components.buckets, resultsBasename + ".buckets" );
}