/*

  * Copyright 2011 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/ecl1.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 java.io.Serializable;

 import java.util.Collection;

 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 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.kuali.rice.kew.api.KewApiConstants;

 import org.w3c.dom.Element;

 @XmlRootElement(name = DocumentContent.Constants.ROOT_ELEMENT_NAME)

 @XmlAccessorType(XmlAccessType.NONE)

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

     DocumentContent.Elements.DOCUMENT_ID,

     DocumentContent.Elements.APPLICATION_CONTENT,

     DocumentContent.Elements.ATTRIBUTE_CONTENT,

     DocumentContent.Elements.SEARCHABLE_CONTENT,

     DocumentContent.Elements.FORMAT_VERSION,

     CoreConstants.CommonElements.FUTURE_ELEMENTS

 })

 public final class DocumentContent extends AbstractDataTransferObject implements DocumentContentContract {

         private static final long serialVersionUID = 6110079520547685342L;

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

     private final String documentId;

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

     private final String applicationContent;

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

     private final String attributeContent;

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

     private final String searchableContent;

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

     private final int formatVersion;

         @SuppressWarnings("unused")

     @XmlAnyElement

     private final Collection<Element> _futureElements = null;

     /**

      * Private constructor used only by JAXB.

      * 

      */

     private DocumentContent() {

         this.documentId = null;

         this.applicationContent = null;

         this.attributeContent = null;

         this.searchableContent = null;

         this.formatVersion = 0;

     }

     private DocumentContent(Builder builder) {

         this.documentId = builder.getDocumentId();

         this.applicationContent = builder.getApplicationContent();

         this.attributeContent = builder.getAttributeContent();

         this.searchableContent = builder.getSearchableContent();

         this.formatVersion = builder.getFormatVersion();

     }

     @Override

     public String getDocumentId() {

         return this.documentId;

     }

     @Override

     public String getApplicationContent() {

         return this.applicationContent;

     }

     @Override

     public String getAttributeContent() {

         return this.attributeContent;

     }

     @Override

     public String getSearchableContent() {

         return this.searchableContent;

     }

     @Override

     public int getFormatVersion() {

         return this.formatVersion;

     }

     public String getFullContent() {

         StringBuilder fullContent = new StringBuilder();

         fullContent.append("<").append(KewApiConstants.DOCUMENT_CONTENT_ELEMENT).append(">");

         if (!StringUtils.isBlank(getApplicationContent())) {

             fullContent.append("<").append(KewApiConstants.APPLICATION_CONTENT_ELEMENT).append(">");

             fullContent.append(getApplicationContent());

             fullContent.append("</").append(KewApiConstants.APPLICATION_CONTENT_ELEMENT).append(">");                

         }

         fullContent.append(getAttributeContent());

         fullContent.append(getSearchableContent());

         fullContent.append("</").append(KewApiConstants.DOCUMENT_CONTENT_ELEMENT).append(">");

         return fullContent.toString();

     }

     /**

      * A builder which can be used to construct {@link DocumentContent} instances.  Enforces the constraints of the {@link DocumentContentContract}.

      */

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

                 private static final long serialVersionUID = 7549637048594326790L;

                 private String documentId;

         private String applicationContent;

         private String attributeContent;

         private String searchableContent;

         private int formatVersion;

         private Builder(String documentId) {

             setDocumentId(documentId);

             setFormatVersion(KewApiConstants.DocumentContentVersions.CURRENT);

         }

         public static Builder create(String documentId) {

             return new Builder(documentId);

         }

         public static Builder create(DocumentContentContract contract) {

             if (contract == null) {

                 throw new IllegalArgumentException("contract was null");

             }

             Builder builder = create(contract.getDocumentId());

             builder.setApplicationContent(contract.getApplicationContent());

             builder.setAttributeContent(contract.getAttributeContent());

             builder.setSearchableContent(contract.getSearchableContent());

             builder.setFormatVersion(contract.getFormatVersion());

             return builder;

         }

         public DocumentContent build() {

             return new DocumentContent(this);

         }

         @Override

         public String getDocumentId() {

             return this.documentId;

         }

         @Override

         public String getApplicationContent() {

             return this.applicationContent;

         }

         @Override

         public String getAttributeContent() {

             return this.attributeContent;

         }

         @Override

         public String getSearchableContent() {

             return this.searchableContent;

         }

         @Override

         public int getFormatVersion() {

             return this.formatVersion;

         }

         public void setDocumentId(String documentId) {

             if (StringUtils.isBlank(documentId)) {

                     throw new IllegalArgumentException("documentId was null or blank");

             }

             this.documentId = documentId;

         }

         public void setApplicationContent(String applicationContent) {

             this.applicationContent = applicationContent;

         }

         public void setAttributeContent(String attributeContent) {

             this.attributeContent = attributeContent;

         }

         public void setSearchableContent(String searchableContent) {

             this.searchableContent = searchableContent;

         }

         public void setFormatVersion(int formatVersion) {

                 if (formatVersion < 0) {

                         throw new IllegalArgumentException("formatVersion must be a valid version, was " + formatVersion);

                 }

             this.formatVersion = formatVersion;

         }

     }

     /**

      * Defines some internal constants used on this class.

      */

     static class Constants {

         final static String ROOT_ELEMENT_NAME = "documentContent";

         final static String TYPE_NAME = "DocumentContentType";

     }

     /**

      * 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 APPLICATION_CONTENT = "applicationContent";

         final static String ATTRIBUTE_CONTENT = "attributeContent";

         final static String SEARCHABLE_CONTENT = "searchableContent";

         final static String FORMAT_VERSION = "formatVersion";

     }

 }