import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
/** Connect to a destination for changes */
public static RDFChanges destination(String dest) {
    // TODO text vs binary
    if ( dest.startsWith("file:") ) {
        OutputStream out = IO.openOutputFile(dest) ;
        TokenWriter tokenWriter = new TokenWriterText(out) ;
        RDFChanges sc = new RDFChangesWriter(tokenWriter) ;
        return sc ;
    }
    
    if ( dest.startsWith("delta:") ) { // TCP connection delta:HOST:PORT
        throw new NotImplemented(dest) ; 
    }
    
    if ( dest.startsWith("http:") || dest.startsWith("https:") ) {
        // Triggered on each transaction.
        return new RDFChangesHTTP(dest, ()->dest, null) ;
    }
    throw new IllegalArgumentException("Not understood: "+dest) ;
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
public static DataSourceClient attach(String filearea) {
    Path path = Paths.get(filearea);
    if ( ! Files.exists(path) ) {
        LOG.error("No such directory: "+filearea);
        throw new DeltaException("No such directory: "+filearea);
    }
    if ( ! Files.isDirectory(path) ) {
        LOG.error("Not a directory: "+filearea);
        throw new DeltaException("Not a directory: "+filearea);
    }            
    
    Path statePath = path.resolve(stateFile);
    RefLong version = new PersistentState(statePath);
    
    Path dataPath = path.resolve(dataDirectory);
    // XXX Check data path
    if ( Files.exists(dataPath) ) {}
    
    throw new NotImplemented();
    //return new DataSourceClient(null, null);
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
private static void UNUSED_CURRENTLY_forkUpdateFetcher(String source, DatasetGraph dsg) {
        if ( true ) {
            Log.warn(DeltaAssembler.class, "forkUpdateFetcher not set up");
            if ( true ) return;
            throw new NotImplemented("NEED THE STATE AREA; NEED THE DATASOURCE ID; NEED THE CLIENT ID");
        }
        DeltaLink dc = DeltaLinkHTTP.connect(source) ;
        DeltaConnection client = null;
        Runnable r = ()->{
            try { client.sync(); }
            catch (Exception ex) { 
                Delta.DELTA_LOG.warn("Failed to sync with the change server: "+ex.getMessage()) ;
//                // Delay this task ; extra 3s + the time interval of 2s.
//                Dones not work as expected.
//                Lib.sleep(5*1000);
            }
        } ;
        ScheduledExecutorService executor = Executors.newScheduledThreadPool(1) ;
        executor.scheduleWithFixedDelay(r, 2, 2, TimeUnit.SECONDS) ;
    }
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
@Override
protected QueryIterator evaluateBlockFilter(Node graphNode, BasicPattern bgp, ExprList exprs, QueryIterator input) {
    // XXX Do as quads.
    Graph graph ;
    // chooseGraph
    if ( graphNode == null ) 
        graph = dataset.getDefaultGraph() ;
    else if ( Var.isVar(graphNode) )
        throw new NotImplemented("OpExecutorMain.executeBlockFilter[Variable]") ;
    else if ( graphNode == Node.ANY )
        throw new NotImplemented("OpExecutorMain.executeBlockFilter[Node.ANY]") ;
    else
        graph = dataset.getGraph(graphNode) ;
    
    return evaluateBlockFilter(graph, bgp, exprs, input);
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
/** Choose a graph from a DatasetGraph.
 * If it's the union, provide a union graph (not always the best way to deal with union).
 * @param dataset
 * @param graphNode
 * @return Graph
 */
protected static Graph chooseGraph(DatasetGraph dataset, Node graphNode) {
    if ( graphNode == null ) 
        return dataset.getDefaultGraph() ;
    else if ( Var.isVar(graphNode) )
        throw new NotImplemented("Choosing a graph OpExecutorStage.executeBlockFilter[Variable]") ;
    else if ( graphNode == Node.ANY )
        throw new NotImplemented("OpExecutorMain.executeBlockFilter[Node.ANY]") ;
    else if ( Quad.isUnionGraph(graphNode) ) {
        // TODO Check this!  Work needed here to consolidate union graph handling.
        List<Node> graphs = Iter.toList(dataset.listGraphNodes()) ;
        return new GraphUnionRead(dataset, graphs) ;
    }
    else
        return dataset.getGraph(graphNode) ;
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
/**
 * Translates a REDUCE into corresponding Impala SQL commands.
 *
 * @param impalaReduced
 *            REDUCE in the ImpalaOp Tree
 */
@Override
public void visit(ImpalaReduced impalaReduced) {
	throw new NotImplemented();
	// String[] s = impalaReduced.translate(Tags.REDUCED);
	// prependToScript(s[0]);
	// appendToScript(s[1]);
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
/** Create a dataset appropriate to the storage type.
     * This does <em>not</em> write the configuration details into the on-disk zone information.
     */
    public DatasetGraph localStorage(LocalStorageType storage, Path dataPath) {
        switch(storage) {
            case EXTERNAL:     return null;
            case MEM:          return DatasetGraphFactory.createTxnMem();
//            case NONE:         return null;
            case TDB:
                return TDBFactory.createDatasetGraph(IOX.asLocation(dataPath));
            default :
                throw new NotImplemented("Zone::localStorage = "+storage);
        }
    }
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
QueryIterator executeOp(Op op, QueryIterator input) {
    // input?
    if ( input instanceof QueryIterRoot )
        input.close() ;
    else
        throw new NotImplemented("Non-root QueryIterator input") ;
    return exec(op) ;
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
@Override
public SqlStatement translate(String name, SqlStatement child) {
	// TODO Auto-generated method stub
	throw new NotImplemented();
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
@Override
public boolean addOffset(int i) {
	// TODO Auto-generated method stub
	throw new NotImplemented();
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
@Override
public SQLStatement translate(String name, SQLStatement child) {
	// TODO Auto-generated method stub
	throw new NotImplemented();
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
public static TupleReader createTupleReaderBin(InputStream in) {
    throw new NotImplemented() ;
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
@Override
public void checkFixity() {
    throw new NotImplemented("Method checkFixity() is not implemented");
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
public static void parsePlacement(ConfCluster confCluster, String file) {
    throw new NotImplemented() ;
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
@Override
public void clear() { 
    throw new NotImplemented("TupleIndexRemote.clear") ;
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
@Override
public void close() {
    throw new NotImplemented() ;
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
@Override
public Iterator<Pair<NodeId, Node>> all() {
    throw new NotImplemented() ;
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
@Override
public boolean isEmpty() {
    throw new NotImplemented() ;
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
/**
 * Translates a REDUCE into corresponding SqlQL commands.
 * 
 * @param SqlReduced
 *            REDUCE in the SqlOp Tree
 */
@Override
public void visit(SqlReduced sqlReduced) {
	throw new NotImplemented();
}
 

import org.apache.jena.atlas.lib.NotImplemented; //导入依赖的package包/类
public static DataSourceClient setup() {
    RefLong version;

    
    throw new NotImplemented();
}