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package com.sun.xml.ws.transport.tcp.server.glassfish;

import com.sun.enterprise.webservice.EjbRuntimeEndpointInfo;
import com.sun.istack.NotNull;
import com.sun.xml.ws.api.message.Packet;
import com.sun.xml.ws.api.server.WSEndpoint;
import com.sun.xml.ws.transport.tcp.util.ChannelContext;
import com.sun.xml.ws.transport.tcp.server.TCPAdapter;
import com.sun.xml.ws.transport.tcp.util.WSTCPException;
import java.io.IOException;

/**
 * @author Alexey Stashok
 */
public final class TCP109Adapter extends TCPAdapter {
    
    /**
     * Currently 109 deployed WS's pipeline relies on Servlet request and response
     * attributes. So its temporary workaround to make 109 work with TCP
     */
    private final ServletFakeArtifactSet servletFakeArtifactSet;
    private final boolean isEJB;
    private final String contextRoot;
    
    public TCP109Adapter(
            @NotNull final String name,
    @NotNull final String contextRoot,
    @NotNull final String urlPattern,
    @NotNull final WSEndpoint endpoint,
    @NotNull final ServletFakeArtifactSet servletFakeArtifactSet,
    final boolean isEJB) {
        super(name, urlPattern, endpoint);
        this.contextRoot = contextRoot;
        this.servletFakeArtifactSet = servletFakeArtifactSet;
        this.isEJB = isEJB;
    }
    
    
    @Override
    public void handle(@NotNull final ChannelContext channelContext) throws IOException, WSTCPException {
        EjbRuntimeEndpointInfo ejbRuntimeEndpointInfo = null;
        
        if (isEJB) {
            ejbRuntimeEndpointInfo = AppServWSRegistry.getInstance().
                    getEjbRuntimeEndpointInfo(contextRoot, getValidPath());
            try {
                ejbRuntimeEndpointInfo.prepareInvocation(true);
            } catch (Exception e) {
                throw new IOException(e.getClass().getName());
            }
        }
        
        try {
            super.handle(channelContext);
        } finally {
            if (isEJB && ejbRuntimeEndpointInfo != null) {
                ejbRuntimeEndpointInfo.releaseImplementor();
            }
        }
    }
    
    @Override
    protected TCPAdapter.TCPToolkit createToolkit() {
        return new TCP109Toolkit();
    }

    final class TCP109Toolkit extends TCPAdapter.TCPToolkit {
        // if its Adapter from 109 deployed WS - add fake Servlet artifacts
        @Override
        public void addCustomPacketSattellites(@NotNull final Packet packet) {
            super.addCustomPacketSattellites(packet);
            packet.addSatellite(servletFakeArtifactSet);
        }
    }
}