/**
    * Copyright 2005-2015 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.rice.kew.api.document;
  
  import org.apache.commons.lang.StringUtils;
  import org.joda.time.DateTime;
  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.jaxb.DateTimeAdapter;
  import org.kuali.rice.core.api.util.jaxb.MapStringStringAdapter;
  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 javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
  import java.io.Serializable;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Map;
  
  @XmlRootElement(name = Document.Constants.ROOT_ELEMENT_NAME)
  @XmlAccessorType(XmlAccessType.NONE)
  @XmlType(name = Document.Constants.TYPE_NAME, propOrder = {
      Document.Elements.DOCUMENT_ID,
      Document.Elements.STATUS,
      Document.Elements.DATE_CREATED,
      Document.Elements.DATE_LAST_MODIFIED,
      Document.Elements.DATE_APPROVED,
      Document.Elements.DATE_FINALIZED,
      Document.Elements.TITLE,
      Document.Elements.APPLICATION_DOCUMENT_ID,
      Document.Elements.INITIATOR_PRINCIPAL_ID,
      Document.Elements.ROUTED_BY_PRINCIPAL_ID,
      Document.Elements.DOCUMENT_TYPE_NAME,
      Document.Elements.DOCUMENT_TYPE_ID,
      Document.Elements.DOCUMENT_HANDLER_URL,
      Document.Elements.APPLICATION_DOCUMENT_STATUS,
      Document.Elements.APPLICATION_DOCUMENT_STATUS_DATE,
      Document.Elements.VARIABLES,
      CoreConstants.CommonElements.FUTURE_ELEMENTS
  })
  public final class Document extends AbstractDataTransferObject implements DocumentContract {
  
  	private static final long serialVersionUID = -6954090887747605047L;
  
  	@XmlElement(name = Elements.DOCUMENT_ID, required = true)
      private final String documentId;
  
      @XmlElement(name = Elements.STATUS, required = true)
      private final String status;
  
      @XmlElement(name = Elements.DATE_CREATED, required = true)
      @XmlJavaTypeAdapter(DateTimeAdapter.class)
      private final DateTime dateCreated;
  
      @XmlElement(name = Elements.DATE_LAST_MODIFIED, required = true)
      @XmlJavaTypeAdapter(DateTimeAdapter.class)
      private final DateTime dateLastModified;
  
      @XmlElement(name = Elements.DATE_APPROVED, required = false)
      @XmlJavaTypeAdapter(DateTimeAdapter.class)
      private final DateTime dateApproved;
  
      @XmlElement(name = Elements.DATE_FINALIZED, required = false)
      @XmlJavaTypeAdapter(DateTimeAdapter.class)
      private final DateTime dateFinalized;
  
      @XmlElement(name = Elements.TITLE, required = false)
      private final String title;
  
      @XmlElement(name = Elements.APPLICATION_DOCUMENT_ID, required = false)
      private final String applicationDocumentId;
  
      @XmlElement(name = Elements.INITIATOR_PRINCIPAL_ID, required = true)
      private final String initiatorPrincipalId;
  
      @XmlElement(name = Elements.ROUTED_BY_PRINCIPAL_ID, required = false)
      private final String routedByPrincipalId;
  
      @XmlElement(name = Elements.DOCUMENT_TYPE_NAME, required = true)
     private final String documentTypeName;
 
     @XmlElement(name = Elements.DOCUMENT_TYPE_ID, required = true)
     private final String documentTypeId;
 
     @XmlElement(name = Elements.DOCUMENT_HANDLER_URL, required = false)
     private final String documentHandlerUrl;
 
     @XmlElement(name = Elements.APPLICATION_DOCUMENT_STATUS, required = false)
     private final String applicationDocumentStatus;
 
     @XmlElement(name = Elements.APPLICATION_DOCUMENT_STATUS_DATE, required = false)
     @XmlJavaTypeAdapter(DateTimeAdapter.class)
     private final DateTime applicationDocumentStatusDate;
 
     @XmlElement(name = Elements.VARIABLES, required = false)
     @XmlJavaTypeAdapter(MapStringStringAdapter.class)
     private final Map<String, String> variables;
 
     @SuppressWarnings("unused")
     @XmlAnyElement
     private final Collection<Element> _futureElements = null;
 
     /**
      * Private constructor used only by JAXB.
      */
     private Document() {
         this.documentId = null;
         this.status = null;
         this.dateCreated = null;
         this.dateLastModified = null;
         this.dateApproved = null;
         this.dateFinalized = null;
         this.title = null;
         this.applicationDocumentId = null;
         this.initiatorPrincipalId = null;
         this.routedByPrincipalId = null;
         this.documentTypeName = null;
         this.documentTypeId = null;
         this.documentHandlerUrl = null;
         this.applicationDocumentStatus = null;
         this.applicationDocumentStatusDate = null;
         this.variables = null;
     }
 
     private Document(Builder builder) {
         this.documentId = builder.getDocumentId();
         this.status = builder.getStatus().getCode();
         this.dateCreated = builder.getDateCreated();
         this.dateLastModified = builder.getDateLastModified();
         this.dateApproved = builder.getDateApproved();
         this.dateFinalized = builder.getDateFinalized();
         this.title = builder.getTitle();
         this.applicationDocumentId = builder.getApplicationDocumentId();
         this.initiatorPrincipalId = builder.getInitiatorPrincipalId();
         this.routedByPrincipalId = builder.getRoutedByPrincipalId();
         this.documentTypeName = builder.getDocumentTypeName();
         this.documentTypeId = builder.getDocumentTypeId();
         this.documentHandlerUrl = builder.getDocumentHandlerUrl();
         this.applicationDocumentStatus = builder.getApplicationDocumentStatus();
         this.applicationDocumentStatusDate = builder.getApplicationDocumentStatusDate();
         this.variables = new HashMap<String, String>(builder.getVariables());
     }
 
     @Override
     public String getDocumentId() {
         return this.documentId;
     }
 
     @Override
     public DocumentStatus getStatus() {
     	if (StringUtils.isBlank(this.status)) {
     		throw new IllegalStateException("Status should not be null");
     	}
 		return DocumentStatus.fromCode(this.status);
     }
 
     @Override
     public DateTime getDateCreated() {
         return this.dateCreated;
     }
 
     @Override
     public DateTime getDateLastModified() {
         return this.dateLastModified;
     }
 
     @Override
     public DateTime getDateApproved() {
         return this.dateApproved;
     }
 
     @Override
     public DateTime getDateFinalized() {
         return this.dateFinalized;
     }
 
     @Override
     public String getTitle() {
         return this.title;
     }
 
     @Override
     public String getApplicationDocumentId() {
         return this.applicationDocumentId;
     }
 
     @Override
     public String getInitiatorPrincipalId() {
         return this.initiatorPrincipalId;
     }
 
     @Override
     public String getRoutedByPrincipalId() {
         return this.routedByPrincipalId;
     }
 
     @Override
     public String getDocumentTypeName() {
         return this.documentTypeName;
     }
 
     @Override
     public String getDocumentTypeId() {
         return this.documentTypeId;
     }
 
     @Override
     public String getDocumentHandlerUrl() {
         return this.documentHandlerUrl;
     }
 
     @Override
     public String getApplicationDocumentStatus() {
         return this.applicationDocumentStatus;
     }
 
     @Override
     public DateTime getApplicationDocumentStatusDate() {
         return this.applicationDocumentStatusDate;
     }
 
     @Override
     public Map<String, String> getVariables() {
         return Collections.unmodifiableMap(this.variables);
     }
 
     /**
      * A builder which can be used to construct {@link Document} instances.  Enforces the constraints of the {@link DocumentContract}.
      *
      */
     public final static class Builder
         implements Serializable, ModelBuilder, DocumentContract
     {
 
 		private static final long serialVersionUID = -1584497024880308500L;
 
 		private String documentId;
         private DocumentStatus status;
         private DateTime dateCreated;
         private DateTime dateLastModified;
         private DateTime dateApproved;
         private DateTime dateFinalized;
         private String title;
         private String applicationDocumentId;
         private String initiatorPrincipalId;
         private String routedByPrincipalId;
         private String documentTypeName;
         private String documentTypeId;
         private String documentHandlerUrl;
         private String applicationDocumentStatus;
         private DateTime applicationDocumentStatusDate;
         private Map<String, String> variables;
 
         private Builder(String documentId, DocumentStatus status, DateTime dateCreated, String initiatorPrincipalId, String documentTypeName, String documentTypeId) {
             setDocumentId(documentId);
             setStatus(status);
             setDateCreated(dateCreated);
             setTitle("");
             setInitiatorPrincipalId(initiatorPrincipalId);
             setDocumentTypeName(documentTypeName);
             setDocumentTypeId(documentTypeId);
             setVariables(new HashMap<String, String>());
         }
 
         public static Builder create(String documentId, DocumentStatus status, DateTime dateCreated, String initiatorPrincipalId, String documentTypeName, String documentTypeId) {
             return new Builder(documentId, status, dateCreated, initiatorPrincipalId, documentTypeName, documentTypeId);
         }
 
         public static Builder create(String documentId, String initiatorPrinicpalId, String documentTypeName, String documentTypeId) {
         	return new Builder(documentId, DocumentStatus.INITIATED, new DateTime(), initiatorPrinicpalId, documentTypeName, documentTypeId);
         }
 
         public static Builder create(DocumentContract contract) {
             if (contract == null) {
                 throw new IllegalArgumentException("contract was null");
             }
             Builder builder = create(
             		contract.getDocumentId(),
             		contract.getStatus(),
             		contract.getDateCreated(),
             		contract.getInitiatorPrincipalId(),
             		contract.getDocumentTypeName(),
             		contract.getDocumentTypeId()
             );
             builder.setDateLastModified(contract.getDateLastModified());
             builder.setDateApproved(contract.getDateApproved());
             builder.setDateFinalized(contract.getDateFinalized());
             builder.setTitle(contract.getTitle());
             builder.setApplicationDocumentId(contract.getApplicationDocumentId());
             builder.setRoutedByPrincipalId(contract.getRoutedByPrincipalId());
             builder.setDocumentHandlerUrl(contract.getDocumentHandlerUrl());
             builder.setApplicationDocumentStatus(contract.getApplicationDocumentStatus());
             builder.setApplicationDocumentStatusDate(contract.getApplicationDocumentStatusDate());
             builder.setVariables(new HashMap<String, String>(contract.getVariables()));
             return builder;
         }
 
         public Document build() {
             return new Document(this);
         }
 
         @Override
         public String getDocumentId() {
             return this.documentId;
         }
 
         @Override
         public DocumentStatus getStatus() {
             return this.status;
         }
 
         @Override
         public DateTime getDateCreated() {
             return this.dateCreated;
         }
 
         @Override
         public DateTime getDateLastModified() {
             return this.dateLastModified;
         }
 
         @Override
         public DateTime getDateApproved() {
             return this.dateApproved;
         }
 
         @Override
         public DateTime getDateFinalized() {
             return this.dateFinalized;
         }
 
         @Override
         public String getTitle() {
             return this.title;
         }
 
         @Override
         public String getApplicationDocumentId() {
             return this.applicationDocumentId;
         }
 
         @Override
         public String getInitiatorPrincipalId() {
             return this.initiatorPrincipalId;
         }
 
         @Override
         public String getRoutedByPrincipalId() {
             return this.routedByPrincipalId;
         }
 
         @Override
         public String getDocumentTypeName() {
             return this.documentTypeName;
         }
 
         @Override
         public String getDocumentTypeId() {
             return this.documentTypeId;
         }
 
         @Override
         public String getDocumentHandlerUrl() {
             return this.documentHandlerUrl;
         }
 
         @Override
         public String getApplicationDocumentStatus() {
             return this.applicationDocumentStatus;
         }
 
         @Override
         public DateTime getApplicationDocumentStatusDate() {
             return this.applicationDocumentStatusDate;
         }
 
         @Override
         public Map<String, String> getVariables() {
             return this.variables;
         }
 
         public void setDocumentId(String documentId) {
             if (StringUtils.isBlank(documentId)) {
             	throw new IllegalArgumentException("documentId was null or blank");
             }
             this.documentId = documentId;
         }
 
         public void setStatus(DocumentStatus status) {
             if (status == null) {
             	throw new IllegalArgumentException("status was null");
             }
             this.status = status;
         }
 
         public void setDateCreated(DateTime dateCreated) {
             if (dateCreated == null) {
             	throw new IllegalArgumentException("dateCreated was null");
             }
             this.dateCreated = dateCreated;
         }
 
         public void setDateLastModified(DateTime dateLastModified) {
             this.dateLastModified = dateLastModified;
         }
 
         public void setDateApproved(DateTime dateApproved) {
             this.dateApproved = dateApproved;
         }
 
         public void setDateFinalized(DateTime dateFinalized) {
             this.dateFinalized = dateFinalized;
         }
 
         public void setTitle(String title) {
         	if (title == null) {
         		title = "";
         	}
             this.title = title;
         }
 
         public void setApplicationDocumentId(String applicationDocumentId) {
             this.applicationDocumentId = applicationDocumentId;
         }
 
         public void setInitiatorPrincipalId(String initiatorPrincipalId) {
             if (StringUtils.isBlank(initiatorPrincipalId)) {
             	throw new IllegalArgumentException("initiatorPrincipalId was null or blank");
             }
             this.initiatorPrincipalId = initiatorPrincipalId;
         }
 
         public void setRoutedByPrincipalId(String routedByPrincipalId) {
             this.routedByPrincipalId = routedByPrincipalId;
         }
 
         public void setDocumentTypeName(String documentTypeName) {
         	if (StringUtils.isBlank(documentTypeName)) {
             	throw new IllegalArgumentException("documentTypeName was null or blank");
             }
             this.documentTypeName = documentTypeName;
         }
 
         public void setDocumentTypeId(String documentTypeId) {
         	if (StringUtils.isBlank(documentTypeId)) {
             	throw new IllegalArgumentException("documentTypeId was null or blank");
             }
             this.documentTypeId = documentTypeId;
         }
 
         public void setDocumentHandlerUrl(String documentHandlerUrl) {
             this.documentHandlerUrl = documentHandlerUrl;
         }
 
         public void setApplicationDocumentStatus(String applicationDocumentStatus) {
             this.applicationDocumentStatus = applicationDocumentStatus;
         }
 
         public void setApplicationDocumentStatusDate(DateTime applicationDocumentStatusDate) {
             this.applicationDocumentStatusDate = applicationDocumentStatusDate;
         }
 
         public void setVariables(Map<String, String> variables) {
         	if (variables == null) {
         		variables = new HashMap<String, String>();
         	}
             this.variables = variables;
         }
 
     }
 
     /**
      * Defines some internal constants used on this class.
      */
     static class Constants {
         final static String ROOT_ELEMENT_NAME = "document";
         final static String TYPE_NAME = "DocumentType";
     }
 
     /**
      * 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 DOCUMENT_ID = "documentId";
         final static String STATUS = "status";
         final static String DATE_CREATED = "dateCreated";
         final static String DATE_LAST_MODIFIED = "dateLastModified";
         final static String DATE_APPROVED = "dateApproved";
         final static String DATE_FINALIZED = "dateFinalized";
         final static String TITLE = "title";
         final static String APPLICATION_DOCUMENT_ID = "applicationDocumentId";
         final static String INITIATOR_PRINCIPAL_ID = "initiatorPrincipalId";
         final static String ROUTED_BY_PRINCIPAL_ID = "routedByPrincipalId";
         final static String DOCUMENT_TYPE_NAME = "documentTypeName";
         final static String DOCUMENT_TYPE_ID = "documentTypeId";
         final static String DOCUMENT_HANDLER_URL = "documentHandlerUrl";
         final static String APPLICATION_DOCUMENT_STATUS = "applicationDocumentStatus";
         final static String APPLICATION_DOCUMENT_STATUS_DATE = "applicationDocumentStatusDate";
         final static String VARIABLES = "variables";
     }
 
 }