package org.kuali.rice.krms.api.repository.category;

 import org.apache.commons.lang.StringUtils;

 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.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.XmlRootElement;

 import javax.xml.bind.annotation.XmlType;

 import java.io.Serializable;

 import java.util.Collection;

 @XmlRootElement(name = CategoryDefinition.Constants.ROOT_ELEMENT_NAME)

 @XmlAccessorType(XmlAccessType.NONE)

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

                 CategoryDefinition.Elements.ID,

                 CategoryDefinition.Elements.NAME,

                 CategoryDefinition.Elements.NAMESPACE,

         CoreConstants.CommonElements.VERSION_NUMBER,

                 CoreConstants.CommonElements.FUTURE_ELEMENTS

 })

 public class CategoryDefinition extends AbstractDataTransferObject implements CategoryDefinitionContract {

     private static final long serialVersionUID = -4748818967880857017L;

     @XmlElement(name = Elements.ID, required=true)

     private String id;

     @XmlElement(name = Elements.NAME, required=true)

     private String name;

     @XmlElement(name = Elements.NAMESPACE, required=true)

     private String namespace;

     @XmlElement(name = CoreConstants.CommonElements.VERSION_NUMBER, required = false)

     private final Long versionNumber;

     @SuppressWarnings("unused")

     @XmlAnyElement

     private final Collection<Element> _futureElements = null;

     /**

     * This constructor should never be called.  It is only present for use during JAXB unmarshalling.

     */

    private CategoryDefinition() {

        this.id = null;

        this.name = null;

        this.namespace = null;

        this.versionNumber = null;

    }

     /**

          * Constructs a CategoryDefinition from the given builder.  This constructor is private and should only

          * ever be invoked from the builder.

          *

          * @param builder the Builder from which to construct the CategoryDefinition

          */

     private CategoryDefinition(Builder builder) {

         this.id = builder.getId();

         this.name = builder.getName();

         this.namespace = builder.getNamespace();

         this.versionNumber = builder.getVersionNumber();

     }

         public String getId() {

                 return this.id;

         }

         public String getName() {

                 return this.name;

         }

         public String getNamespace() {

                 return this.namespace;

         }

     @Override

     public Long getVersionNumber() {

         return versionNumber;

     }

     /**

      * This builder is used to construct instances of CategoryDefinition.  It enforces the constraints of the {@link org.kuali.rice.krms.api.repository.category.CategoryDefinitionContract}.

      */

     public static class Builder implements CategoryDefinitionContract, ModelBuilder, Serializable {

         private static final long serialVersionUID = -5775478956373560840L;

         private String id;

         private String name;

         private String namespace;

         private Long versionNumber;

         /**

          * Private constructor for creating a builder with all of it's required attributes.

          */

         private Builder(String id, String name, String namespace) {

             setId(id);

             setName(name);

             setNamespace(namespace);

         }

         /**

          * Creates a builder from the given parameters.

          *

          * @param id the CategoryDefinition id

          * @param name the CategoryDefinition name

          * @param namespace the CategoryDefinition namespace

          * @return an instance of the builder with the fields already populated

          * @throws IllegalArgumentException if the either the id, name or namespace is null or blank

          */

         public static Builder create(String id, String name, String namespace) {

             return new Builder(id, name, namespace);

         }

         /**

          * Creates a builder by populating it with data from the given {@link CategoryDefinition}.

          *

          * @param category the category from which to populate this builder

          * @return an instance of the builder populated with data from the contract

          */

         public static Builder create(CategoryDefinitionContract category) {

             if (category == null) {

                 throw new IllegalArgumentException("contract is null");

             }

             Builder builder =  new Builder(category.getId(), category.getName(), category.getNamespace());

             builder.setVersionNumber(category.getVersionNumber());

             return builder;

         }

         /**

          * Sets the value of the id on this builder to the given value.

          *

          * @param id the id value to set, must be null or non-blank

          * @throws IllegalArgumentException if the id is non-null and blank

          */

         public void setId(String id) {

             if (null != id && StringUtils.isBlank(id)) {

                 throw new IllegalArgumentException("id must be null or non-blank");

             }

             this.id = id;

         }

         /**

          * Sets the name for the category definition that will be returned by this builder.

          * The name must not be null or blank.

          *

          * @param name the name to set on this builder, must not be null or blank

          *

          * @throws IllegalArgumentException if the given name is null or blank

          */

         public void setName(String name) {

             if (StringUtils.isBlank(name)) {

                 throw new IllegalArgumentException("name is blank");

             }

             this.name = name;

         }

         /**

          * Sets the namespace code for the category definition that will be returned by this builder.

          * The namespace must not be null or blank.

          *

          * @param namespace the namespace code to set on this builder, must not be null or blank

          *

          * @throws IllegalArgumentException if the given namespace is null or blank

          */

         public void setNamespace(String namespace) {

             if (StringUtils.isBlank(namespace)) {

                 throw new IllegalArgumentException("namespace is blank");

             }

             this.namespace = namespace;

         }

         public void setVersionNumber(Long versionNumber){

             this.versionNumber = versionNumber;

         }

         @Override

         public String getId() {

             return this.id;

         }

         @Override

         public String getName() {

             return this.name;

         }

         @Override

         public String getNamespace() {

             return this.namespace;

         }

         @Override

         public Long getVersionNumber() {

             return this.versionNumber;

         }

         /**

          * Builds an instance of a CategoryDefinition based on the current state of the builder.

          *

          * @return the fully-constructed CampusType

          */

         @Override

         public CategoryDefinition build() {

             return new CategoryDefinition(this);

         }

     }

     /**

      * Defines some internal constants used on this class.

      */

     static class Constants {

         final static String ROOT_ELEMENT_NAME = "category";

         final static String TYPE_NAME = "CategoryType";

     }

     /**

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

      * when this object is marshalled to XML.

      */

     public static class Elements {

         final static String ID = "id";

         final static String NAME = "name";

         final static String NAMESPACE = "namespace";

     }

 }