package org.kuali.rice.kew.api.doctype;

 import org.kuali.rice.core.api.CoreConstants;

 import org.kuali.rice.core.api.mo.AbstractDataTransferObject;

 import org.kuali.rice.core.api.mo.ModelBuilder;

 import org.kuali.rice.core.api.util.CollectionUtils;

 import org.w3c.dom.Element;

 import javax.xml.bind.annotation.XmlAccessType;

 import javax.xml.bind.annotation.XmlAccessorType;

 import javax.xml.bind.annotation.XmlAnyElement;

 import javax.xml.bind.annotation.XmlElement;

 import javax.xml.bind.annotation.XmlElementWrapper;

 import javax.xml.bind.annotation.XmlRootElement;

 import javax.xml.bind.annotation.XmlType;

 import java.io.Serializable;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.List;

 @XmlRootElement(name = RoutePath.Constants.ROOT_ELEMENT_NAME)

 @XmlAccessorType(XmlAccessType.NONE)

 @XmlType(name = RoutePath.Constants.TYPE_NAME, propOrder = {

         RoutePath.Elements.PROCESSES,

         CoreConstants.CommonElements.FUTURE_ELEMENTS

 })

 public final class RoutePath extends AbstractDataTransferObject implements RoutePathContract {

     private static final long serialVersionUID = -7177305375323986864L;

     @XmlElementWrapper(name = Elements.PROCESSES, required = false)

     @XmlElement(name = Elements.PROCESS, required = false)

     private final List<Process> processes;

     @SuppressWarnings("unused")

     @XmlAnyElement

     private final Collection<Element> _futureElements = null;

     /**

      * Private constructor used only by JAXB.

      */

     private RoutePath() {

         this.processes = null;

     }

     private RoutePath(Builder builder) {

         this.processes = new ArrayList<Process>();

         if (builder.getProcesses() != null) {

             for (Process.Builder processBuilder : builder.getProcesses()) {

                 this.processes.add(processBuilder.build());

             }

         }

     }

     public Process getPrimaryProcess() {

         for (Process process : processes) {

             if (process.isInitial()) {

                 return process;

             }

         }        

         return null;

     }

     @Override

     public List<Process> getProcesses() {

         return CollectionUtils.unmodifiableListNullSafe(this.processes);

     }

     /**

      * A builder which can be used to construct {@link RoutePath} instances. Enforces the

      * constraints of the {@link RoutePathContract}.

      */

     public final static class Builder implements Serializable, ModelBuilder, RoutePathContract {

         private static final long serialVersionUID = -6916424305298043710L;

         private List<Process.Builder> processes;

         private Builder() {}

         public static Builder create() {

             Builder builder = new Builder();

             builder.setProcesses(new ArrayList<Process.Builder>());

             return builder;

         }

         public static Builder create(RoutePathContract contract) {

             if (contract == null) {

                 throw new IllegalArgumentException("contract was null");

             }

             Builder builder = create();

             List<Process.Builder> processBuilders = new ArrayList<Process.Builder>();

             for (ProcessContract process : contract.getProcesses()) {

                 processBuilders.add(Process.Builder.create(process));

             }

             builder.setProcesses(processBuilders);

             return builder;

         }

         public RoutePath build() {

             return new RoutePath(this);

         }

         @Override

         public List<Process.Builder> getProcesses() {

             return this.processes;

         }

         public void setProcesses(List<Process.Builder> processes) {

             this.processes = processes;

         }

     }

     /**

      * Defines some internal constants used on this class.

      */

     static class Constants {

         final static String ROOT_ELEMENT_NAME = "routePath";

         final static String TYPE_NAME = "RoutePathType";

     }

     /**

      * A private class which exposes constants which define the XML element names to use when this

      * object is marshalled to XML.

      */

     static class Elements {

         final static String PROCESSES = "processes";

         final static String PROCESS = "process";

     }

 }