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package com.sun.xml.ws.assembler;

import com.sun.istack.NotNull;
import com.sun.xml.ws.api.BindingID;
import com.sun.xml.ws.api.pipe.ClientTubeAssemblerContext;
import com.sun.xml.ws.api.pipe.ServerTubeAssemblerContext;
import com.sun.xml.ws.api.pipe.Tube;
import com.sun.xml.ws.api.pipe.TubelineAssembler;
import com.sun.xml.ws.api.pipe.TubelineAssemblerFactory;
import com.sun.xml.ws.api.server.ServiceDefinition;
import com.sun.istack.logging.Logger;
import com.sun.xml.ws.assembler.localization.LocalizationMessages;
import com.sun.xml.ws.dump.LoggingDumpTube;
import com.sun.xml.ws.runtime.WsdlDocumentFilter;
import java.util.Collection;
import java.util.logging.Level;

/**
 * WSIT Tubeline assembler factory
 * 
 * @author Marek Potociar (marek.potociar at sun.com)
 */
public final class TubelineAssemblerFactoryImpl extends TubelineAssemblerFactory {

    private static class MetroTubelineAssembler implements TubelineAssembler {

        private static final String COMMON_MESSAGE_DUMP_SYSTEM_PROPERTY_BASE = "com.sun.metro.soap.dump";

        private static enum Side {

            Client("client"),
            Endpoint("endpoint");
            private final String name;

            private Side(String name) {
                this.name = name;
            }

            @Override
            public String toString() {
                return name;
            }
        }

        private static class MessageDumpingInfo {

            final boolean dumpBefore;
            final boolean dumpAfter;
            final Level logLevel;

            MessageDumpingInfo(boolean dumpBefore, boolean dumpAfter, Level logLevel) {
                this.dumpBefore = dumpBefore;
                this.dumpAfter = dumpAfter;
                this.logLevel = logLevel;
            }
        }
        private static final Logger LOGGER = Logger.getLogger(MetroTubelineAssembler.class);
        private final BindingID bindingId;
        private final TubelineAssemblyController tubelineAssemblyController;

        MetroTubelineAssembler(final BindingID bindingId) {
            this.bindingId = bindingId;
            this.tubelineAssemblyController = new TubelineAssemblyController();
        }

        @NotNull
        public Tube createClient(@NotNull ClientTubeAssemblerContext jaxwsContext) {
            if (LOGGER.isLoggable(Level.FINER)) {                
                LOGGER.finer("Assembling client-side tubeline for WS endpoint: " + jaxwsContext.getAddress().getURI().toString());
            }
            
            ClientTubelineAssemblyContextImpl context = new ClientTubelineAssemblyContextImpl(jaxwsContext);

            Collection tubeCreators = tubelineAssemblyController.getTubeCreators(context);

            for (TubeCreator tubeCreator : tubeCreators) {
                tubeCreator.updateContext(context);
            }

            for (TubeCreator tubeCreator : tubeCreators) {
                final MessageDumpingInfo msgDumpInfo = setupMessageDumping(tubeCreator.getMessageDumpPropertyBase(), Side.Client);

                final Tube oldTubelineHead = context.getTubelineHead();
                LoggingDumpTube afterDumpTube = null;
                if (msgDumpInfo.dumpAfter) {
                    afterDumpTube = new LoggingDumpTube(msgDumpInfo.logLevel, LoggingDumpTube.Position.After, context.getTubelineHead());
                    context.setTubelineHead(afterDumpTube);
                }

                if (!context.setTubelineHead(tubeCreator.createTube(context))) { // no new tube has been created
                    if (afterDumpTube != null) {
                        context.setTubelineHead(oldTubelineHead); // removing possible "after" message dumping tube
                    }
                } else {
                    final String loggedTubeName = context.getTubelineHead().getClass().getName();
                    if (afterDumpTube != null) {
                        afterDumpTube.setLoggedTubeName(loggedTubeName);
                    }

                    if (msgDumpInfo.dumpBefore) {
                        final LoggingDumpTube beforeDumpTube = new LoggingDumpTube(msgDumpInfo.logLevel, LoggingDumpTube.Position.Before, context.getTubelineHead());
                        beforeDumpTube.setLoggedTubeName(loggedTubeName);
                        context.setTubelineHead(beforeDumpTube);
                    }
                }
            }

            return context.getTubelineHead();
        }

        @NotNull
        public Tube createServer(@NotNull ServerTubeAssemblerContext jaxwsContext) {
            if (LOGGER.isLoggable(Level.FINER)) {                
                LOGGER.finer("Assembling endpoint tubeline for WS endpoint: " + jaxwsContext.getEndpoint().getServiceName() + "::" + jaxwsContext.getEndpoint().getPortName());
            }
            
            ServerTubelineAssemblyContextImpl context = new ServerTubelineAssemblyContextImpl(jaxwsContext);
            ServiceDefinition sd = context.getEndpoint().getServiceDefinition();
            if (sd != null) {
                sd.addFilter(new WsdlDocumentFilter());
            }

            // FIXME endpoint URI for provider case
            Collection tubeCreators = tubelineAssemblyController.getTubeCreators(context);
            for (TubeCreator tubeCreator : tubeCreators) {
                tubeCreator.updateContext(context);
            }

            for (TubeCreator tubeCreator : tubeCreators) {
                final MessageDumpingInfo msgDumpInfo = setupMessageDumping(tubeCreator.getMessageDumpPropertyBase(), Side.Endpoint);

                final Tube oldTubelineHead = context.getTubelineHead();
                LoggingDumpTube afterDumpTube = null;
                if (msgDumpInfo.dumpAfter) {
                    afterDumpTube = new LoggingDumpTube(msgDumpInfo.logLevel, LoggingDumpTube.Position.After, context.getTubelineHead());
                    context.setTubelineHead(afterDumpTube);
                }

                if (!context.setTubelineHead(tubeCreator.createTube(context))) { // no new tube has been created
                    if (afterDumpTube != null) {
                        context.setTubelineHead(oldTubelineHead); // removing possible "after" message dumping tube
                    }
                } else {
                    final String loggedTubeName = context.getTubelineHead().getClass().getName();
                    if (afterDumpTube != null) {
                        afterDumpTube.setLoggedTubeName(loggedTubeName);
                    }

                    if (msgDumpInfo.dumpBefore) {
                        final LoggingDumpTube beforeDumpTube = new LoggingDumpTube(msgDumpInfo.logLevel, LoggingDumpTube.Position.Before, context.getTubelineHead());
                        beforeDumpTube.setLoggedTubeName(loggedTubeName);
                        context.setTubelineHead(beforeDumpTube);
                    }
                }
            }

            return context.getTubelineHead();
        }

        private MessageDumpingInfo setupMessageDumping(String msgDumpSystemPropertyBase, Side side) {
            boolean dumpBefore = false;
            boolean dumpAfter = false;
            Level logLevel = Level.INFO;

            // checking common properties
            Boolean value = getBooleanValue(COMMON_MESSAGE_DUMP_SYSTEM_PROPERTY_BASE);
            if (value != null) {
                dumpBefore = value.booleanValue();
                dumpAfter = value.booleanValue();
            }

            value = getBooleanValue(COMMON_MESSAGE_DUMP_SYSTEM_PROPERTY_BASE + ".before");
            dumpBefore = (value != null) ? value.booleanValue() : dumpBefore;

            value = getBooleanValue(COMMON_MESSAGE_DUMP_SYSTEM_PROPERTY_BASE + ".after");
            dumpAfter = (value != null) ? value.booleanValue() : dumpAfter;

            Level levelValue = getLevelValue(COMMON_MESSAGE_DUMP_SYSTEM_PROPERTY_BASE + ".level");
            if (levelValue != null) {
                logLevel = levelValue;
            }

            // narrowing to proper communication side on common properties
            value = getBooleanValue(COMMON_MESSAGE_DUMP_SYSTEM_PROPERTY_BASE + "." + side.toString());
            if (value != null) {
                dumpBefore = value.booleanValue();
                dumpAfter = value.booleanValue();
            }

            value = getBooleanValue(COMMON_MESSAGE_DUMP_SYSTEM_PROPERTY_BASE + "." + side.toString() + ".before");
            dumpBefore = (value != null) ? value.booleanValue() : dumpBefore;

            value = getBooleanValue(COMMON_MESSAGE_DUMP_SYSTEM_PROPERTY_BASE + "." + side.toString() + ".after");
            dumpAfter = (value != null) ? value.booleanValue() : dumpAfter;

            levelValue = getLevelValue(COMMON_MESSAGE_DUMP_SYSTEM_PROPERTY_BASE + "." + side.toString() + ".level");
            if (levelValue != null) {
                logLevel = levelValue;
            }


            // checking general tube-specific properties
            value = getBooleanValue(msgDumpSystemPropertyBase);
            if (value != null) {
                dumpBefore = value.booleanValue();
                dumpAfter = value.booleanValue();
            }

            value = getBooleanValue(msgDumpSystemPropertyBase + ".before");
            dumpBefore = (value != null) ? value.booleanValue() : dumpBefore;

            value = getBooleanValue(msgDumpSystemPropertyBase + ".after");
            dumpAfter = (value != null) ? value.booleanValue() : dumpAfter;

            levelValue = getLevelValue(msgDumpSystemPropertyBase + ".level");
            if (levelValue != null) {
                logLevel = levelValue;
            }

            // narrowing to proper communication side on tube-specific properties
            msgDumpSystemPropertyBase += "." + side.toString();

            value = getBooleanValue(msgDumpSystemPropertyBase);
            if (value != null) {
                dumpBefore = value.booleanValue();
                dumpAfter = value.booleanValue();
            }

            value = getBooleanValue(msgDumpSystemPropertyBase + ".before");
            dumpBefore = (value != null) ? value.booleanValue() : dumpBefore;

            value = getBooleanValue(msgDumpSystemPropertyBase + ".after");
            dumpAfter = (value != null) ? value.booleanValue() : dumpAfter;

            levelValue = getLevelValue(msgDumpSystemPropertyBase + ".level");
            if (levelValue != null) {
                logLevel = levelValue;
            }

            return new MessageDumpingInfo(dumpBefore, dumpAfter, logLevel);
        }

        private Boolean getBooleanValue(String propertyName) {
            Boolean retVal = null;

            String stringValue = System.getProperty(propertyName);
            if (stringValue != null) {
                retVal = Boolean.valueOf(stringValue);
                LOGGER.fine(LocalizationMessages.MASM_0018_MSG_LOGGING_SYSTEM_PROPERTY_SET_TO_VALUE(propertyName, retVal));
            }

            return retVal;
        }

        private Level getLevelValue(String propertyName) {
            Level retVal = null;

            String stringValue = System.getProperty(propertyName);
            if (stringValue != null) {
                // if value is not null => property is set, we will try to override the default logging level
                LOGGER.fine(LocalizationMessages.MASM_0018_MSG_LOGGING_SYSTEM_PROPERTY_SET_TO_VALUE(propertyName, stringValue));
                try {
                    retVal = Level.parse(stringValue);
                } catch (IllegalArgumentException ex) {
                    LOGGER.warning(LocalizationMessages.MASM_0019_MSG_LOGGING_SYSTEM_PROPERTY_ILLEGAL_VALUE(propertyName, stringValue), ex);
                }
            }

            return retVal;
        }
    }

    @Override
    public TubelineAssembler doCreate(final BindingID bindingId) {
        return new MetroTubelineAssembler(bindingId);
    }
}




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