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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package com.sun.corba.se.impl.resolver ;

import org.omg.CORBA.portable.InputStream ;
import org.omg.CORBA.portable.OutputStream ;
import org.omg.CORBA.portable.ApplicationException ;
import org.omg.CORBA.portable.RemarshalException ;

import com.sun.corba.se.spi.ior.IOR ;
import com.sun.corba.se.spi.ior.IORFactories ;
import com.sun.corba.se.spi.ior.IORTemplate ;
import com.sun.corba.se.spi.ior.ObjectKey ;
import com.sun.corba.se.spi.ior.ObjectKeyFactory ;
import com.sun.corba.se.spi.ior.iiop.IIOPAddress ;
import com.sun.corba.se.spi.ior.iiop.IIOPProfileTemplate ;
import com.sun.corba.se.spi.ior.iiop.IIOPFactories ;
import com.sun.corba.se.spi.ior.iiop.GIOPVersion ;
import com.sun.corba.se.spi.logging.CORBALogDomains ;
import com.sun.corba.se.spi.orb.ORB ;
import com.sun.corba.se.spi.resolver.Resolver ;

import com.sun.corba.se.impl.logging.ORBUtilSystemException ;
import com.sun.corba.se.impl.orbutil.ORBUtility ;

public class BootstrapResolverImpl implements Resolver {
    private org.omg.CORBA.portable.Delegate bootstrapDelegate ;
    private ORBUtilSystemException wrapper ;

    public BootstrapResolverImpl(ORB orb, String host, int port) {
        wrapper = ORBUtilSystemException.get( orb,
            CORBALogDomains.ORB_RESOLVER ) ;

        // Create a new IOR with the magic of INIT
        byte[] initialKey = "INIT".getBytes() ;
        ObjectKey okey = orb.getObjectKeyFactory().create(initialKey) ;

        IIOPAddress addr = IIOPFactories.makeIIOPAddress( orb, host, port ) ;
        IIOPProfileTemplate ptemp = IIOPFactories.makeIIOPProfileTemplate(
            orb, GIOPVersion.V1_0, addr);

        IORTemplate iortemp = IORFactories.makeIORTemplate( okey.getTemplate() ) ;
        iortemp.add( ptemp ) ;

        IOR initialIOR = iortemp.makeIOR( (com.sun.corba.se.spi.orb.ORB)orb,
            "", okey.getId() ) ;

        bootstrapDelegate = ORBUtility.makeClientDelegate( initialIOR ) ;
    }

    
For the BootStrap operation we do not expect to have more than one
parameter. We do not want to extend BootStrap protocol any further,
as INS handles most of what BootStrap can handle in a portable way.
Returns:
InputStream which contains the response from the
BootStrapOperation./**
     * For the BootStrap operation we do not expect to have more than one
     * parameter. We do not want to extend BootStrap protocol any further,
     * as INS handles most of what BootStrap can handle in a portable way.
     *
     * @return InputStream which contains the response from the
     * BootStrapOperation.
     */
    private InputStream invoke( String operationName, String parameter )
    {
        boolean remarshal = true;

        // Invoke.

        InputStream inStream = null;

        // If there is a location forward then you will need
        // to invoke again on the updated information.
        // Just calling this same routine with the same host/port
        // does not take the location forward info into account.

        while (remarshal) {
            org.omg.CORBA.Object objref = null ;
            remarshal = false;

            OutputStream os = (OutputStream) bootstrapDelegate.request( objref,
                operationName, true);

            if ( parameter != null ) {
                os.write_string( parameter );
            }

            try {
                // The only reason a null objref is passed is to get the version of
                // invoke used by streams.  Otherwise the PortableInterceptor
                // call stack will become unbalanced since the version of
                // invoke which only takes the stream does not call
                // PortableInterceptor ending points.
                // Note that the first parameter is ignored inside invoke.

                inStream = bootstrapDelegate.invoke( objref, os);
            } catch (ApplicationException e) {
                throw wrapper.bootstrapApplicationException( e ) ;
            } catch (RemarshalException e) {
                // XXX log this
                remarshal = true;
            }
        }

        return inStream;
    }

    public org.omg.CORBA.Object resolve( String identifier )
    {
        InputStream inStream = null ;
        org.omg.CORBA.Object result = null ;

        try {
            inStream = invoke( "get", identifier ) ;

            result = inStream.read_Object();

            // NOTE: do note trap and ignore errors.
            // Let them flow out.
        } finally {
            bootstrapDelegate.releaseReply( null, inStream ) ;
        }

        return result ;
    }

    public java.util.Set list()
    {
        InputStream inStream = null ;
        java.util.Set result = new java.util.HashSet() ;

        try {
            inStream = invoke( "list", null ) ;

            int count = inStream.read_long();
            for (int i=0; i < count; i++)
                result.add( inStream.read_string() ) ;

            // NOTE: do note trap and ignore errors.
            // Let them flow out.
        } finally {
            bootstrapDelegate.releaseReply( null, inStream ) ;
        }

        return result ;
    }
}