import org.omg.IOP.ServiceContextHelper; //导入依赖的package包/类
/**
 * Utility method to look up a service context with the given id and
 * convert it to an IOP.ServiceContext.  Uses the given HashMap as
 * a cache.  If not found in cache, the result is inserted in the cache.
 */
protected org.omg.IOP.ServiceContext
    getServiceContext ( HashMap cachedServiceContexts,
                        ServiceContexts serviceContexts, int id )
{
    org.omg.IOP.ServiceContext result = null;
    Integer integerId = new Integer( id );

    // Search cache first:
    result = (org.omg.IOP.ServiceContext)
        cachedServiceContexts.get( integerId );

    // null could normally mean that either we cached the value null
    // or it's not in the cache.  However, there is no way for us to
    // cache the value null in the following code.
    if( result == null ) {
        // Not in cache.  Find it and put in cache.
        // Get the desired "core" service context.
        com.sun.corba.se.spi.servicecontext.ServiceContext context =
            serviceContexts.get( id );
        if (context == null)
            throw stdWrapper.invalidServiceContextId() ;

        // Convert the "core" service context to an
        // "IOP" ServiceContext by writing it to a
        // CDROutputStream and reading it back.
        EncapsOutputStream out =
            sun.corba.OutputStreamFactory.newEncapsOutputStream(myORB);

        context.write( out, GIOPVersion.V1_2 );
        InputStream inputStream = out.create_input_stream();
        result = ServiceContextHelper.read( inputStream );

        cachedServiceContexts.put( integerId, result );
    }

    // Good citizen: For increased efficiency, we assume that interceptors
    // will not modify the returned ServiceContext.  Otherwise, we would
    // have to make a deep copy.

    return result;
}
 

import org.omg.IOP.ServiceContextHelper; //导入依赖的package包/类
/**
 * Utility method to look up a service context with the given id and
 * convert it to an IOP.ServiceContext.  Uses the given HashMap as
 * a cache.  If not found in cache, the result is inserted in the cache.
 */
protected org.omg.IOP.ServiceContext
    getServiceContext ( HashMap cachedServiceContexts,
                        ServiceContexts serviceContexts, int id )
{
    org.omg.IOP.ServiceContext result = null;
    Integer integerId = new Integer( id );

    // Search cache first:
    result = (org.omg.IOP.ServiceContext)
        cachedServiceContexts.get( integerId );

    // null could normally mean that either we cached the value null
    // or it's not in the cache.  However, there is no way for us to
    // cache the value null in the following code.
    if( result == null ) {
        // Not in cache.  Find it and put in cache.
        // Get the desired "core" service context.
        com.sun.corba.se.spi.servicecontext.ServiceContext context =
            serviceContexts.get( id );
        if (context == null)
            throw stdWrapper.invalidServiceContextId() ;

        // Convert the "core" service context to an
        // "IOP" ServiceContext by writing it to a
        // CDROutputStream and reading it back.
        EncapsOutputStream out = new EncapsOutputStream(myORB);

        context.write( out, GIOPVersion.V1_2 );
        InputStream inputStream = out.create_input_stream();
        result = ServiceContextHelper.read( inputStream );

        cachedServiceContexts.put( integerId, result );
    }

    // Good citizen: For increased efficiency, we assume that interceptors
    // will not modify the returned ServiceContext.  Otherwise, we would
    // have to make a deep copy.

    return result;
}