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package org.apache.tapestry.services.impl;
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import java.util.Iterator;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.apache.hivemind.ErrorHandler;
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import org.apache.tapestry.IEngine;
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import org.apache.tapestry.IRequestCycle;
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import org.apache.tapestry.Tapestry;
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import org.apache.tapestry.engine.IEngineService;
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import org.apache.tapestry.engine.IMonitor;
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import org.apache.tapestry.engine.IMonitorFactory;
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import org.apache.tapestry.engine.RequestCycle;
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import org.apache.tapestry.engine.RequestCycleEnvironment;
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import org.apache.tapestry.engine.ServiceEncoder;
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import org.apache.tapestry.engine.ServiceEncodingImpl;
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import org.apache.tapestry.record.PropertyPersistenceStrategySource;
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import org.apache.tapestry.request.RequestContext;
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import org.apache.tapestry.services.AbsoluteURLBuilder;
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import org.apache.tapestry.services.Infrastructure;
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import org.apache.tapestry.services.RequestCycleFactory;
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import org.apache.tapestry.services.ServiceConstants;
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import org.apache.tapestry.util.QueryParameterMap;
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import org.apache.tapestry.web.WebRequest;
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public class RequestCycleFactoryImpl implements RequestCycleFactory
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{
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private ServiceEncoder[] _encoders;
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private IMonitorFactory _monitorFactory;
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private PropertyPersistenceStrategySource _strategySource;
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private ErrorHandler _errorHandler;
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private Infrastructure _infrastructure;
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private AbsoluteURLBuilder _absoluteURLBuilder;
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private RequestCycleEnvironment _environment;
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private HttpServletRequest _servletRequest;
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private HttpServletResponse _servletResponse;
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public void initializeService()
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{
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RequestContext context = new RequestContext(_servletRequest, _servletResponse);
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_environment = new RequestCycleEnvironment(_errorHandler, _infrastructure, context,
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_strategySource, _absoluteURLBuilder);
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}
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public IRequestCycle newRequestCycle(IEngine engine)
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{
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WebRequest request = _infrastructure.getRequest();
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IMonitor monitor = _monitorFactory.createMonitor(request);
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QueryParameterMap parameters = extractParameters(request);
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decodeParameters(request.getActivationPath(), parameters);
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IEngineService service = findService(parameters);
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return new RequestCycle(engine, parameters, service, monitor, _environment);
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}
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private IEngineService findService(QueryParameterMap parameters)
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{
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String serviceName = parameters.getParameterValue(ServiceConstants.SERVICE);
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if (serviceName == null)
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serviceName = Tapestry.HOME_SERVICE;
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return _infrastructure.getServiceMap().getService(serviceName);
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}
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private QueryParameterMap extractParameters(WebRequest request)
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{
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QueryParameterMap result = new QueryParameterMap();
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Iterator i = request.getParameterNames().iterator();
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while (i.hasNext())
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{
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String name = (String) i.next();
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String[] values = request.getParameterValues(name);
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if (values.length == 1)
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result.setParameterValue(name, values[0]);
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else
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result.setParameterValues(name, values);
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}
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return result;
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}
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private void decodeParameters(String servletPath, QueryParameterMap map)
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{
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ServiceEncodingImpl se = new ServiceEncodingImpl(servletPath, map);
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for (int i = 0; i < _encoders.length; i++)
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{
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0
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_encoders[i].decode(se);
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0
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if (se.isModified())
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0
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return;
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}
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}
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public void setEncoders(ServiceEncoder[] encoders)
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{
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_encoders = encoders;
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}
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public void setMonitorFactory(IMonitorFactory monitorFactory)
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{
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_monitorFactory = monitorFactory;
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}
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public void setStrategySource(PropertyPersistenceStrategySource strategySource)
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{
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_strategySource = strategySource;
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}
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public void setErrorHandler(ErrorHandler errorHandler)
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{
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_errorHandler = errorHandler;
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}
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public void setInfrastructure(Infrastructure infrastructure)
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{
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_infrastructure = infrastructure;
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}
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public void setAbsoluteURLBuilder(AbsoluteURLBuilder absoluteURLBuilder)
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{
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_absoluteURLBuilder = absoluteURLBuilder;
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}
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public void setServletRequest(HttpServletRequest servletRequest)
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{
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_servletRequest = servletRequest;
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}
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public void setServletResponse(HttpServletResponse servletResponse)
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{
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_servletResponse = servletResponse;
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}
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}
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