package org.kuali.ole.docstore.model.xmlpojo.config;
   
   import org.apache.commons.io.FileUtils;
   import org.apache.commons.io.IOUtils;
   import org.kuali.ole.docstore.model.jaxb.config.DocumentConfigConverter;
   import org.slf4j.Logger;
   import org.slf4j.LoggerFactory;
   
   import javax.xml.bind.annotation.*;
  import java.io.File;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * <p/>
   * Java class for DocumentConfig complex type.
   * <p/>
   * <p/>
   * The following schema fragment specifies the expected content contained within this class.
   * <p/>
   * <pre>
   * &lt;complexType name="DocumentConfig">
   *   &lt;complexContent>
   *     &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
   *       &lt;sequence>
   *         &lt;element name="documentCategories" type="{}DocumentCategory" maxOccurs="unbounded" minOccurs="0"/>
   *       &lt;/sequence>
   *     &lt;/restriction>
   *   &lt;/complexContent>
   * &lt;/complexType>
   * </pre>
   */
  @XmlAccessorType(XmlAccessType.FIELD)
  @XmlRootElement(name = "documentConfig")
  @XmlType(name = "DocumentConfig")
  public class DocumentConfig {
  
      public static Logger logger = LoggerFactory.getLogger(DocumentConfig.class);
      public static DocumentConfig docStoreMetaData = null;
      @XmlElement(name = "documentCategory")
      protected List<DocumentCategory> documentCategories;
  
      /**
       * Gets the value of the documentCategories property.
       * <p/>
       * <p/>
       * This accessor method returns a reference to the live list, not a snapshot. Therefore any modification you make to the returned list will be present inside the JAXB object. This is why there is not a <CODE>set</CODE> method for the documentCategories property.
       * <p/>
       * <p/>
       * For example, to add a new item, do as follows:
       * <p/>
       * <pre>
       * getDocumentCategories().add(newItem);
       * </pre>
       * <p/>
       * <p/>
       * <p/>
       * Objects of the following type(s) are allowed in the list {@link DocumentCategory }
       */
      public List<DocumentCategory> getDocumentCategories() {
          if (documentCategories == null) {
              documentCategories = new ArrayList<DocumentCategory>();
          }
          return this.documentCategories;
      }
  
      public static DocumentConfig getInstance() {
          if (docStoreMetaData == null) {
              try {
                  DocumentConfigConverter documentConverter = new DocumentConfigConverter();
                  String docConfigFilePath = System.getProperty("document.config.file");
                  if (docConfigFilePath != null) {
                      logger.info("docConfigFilePath-->" + docConfigFilePath);
                      File docConfigFile = new File(docConfigFilePath);
                      docStoreMetaData = documentConverter.unmarshal(FileUtils.readFileToString(docConfigFile));
                  } else {
                      docStoreMetaData = documentConverter.unmarshal(IOUtils.toString(DocumentConfig.class
                              .getResourceAsStream("/org/kuali/ole/docstore/DocumentConfig.xml")));
                  }
                  logger.info("docStoreMetaData-->" + docStoreMetaData);
                  logger.info("Loaded Doc Store Meta Data Successfully.");
              } catch (Exception e) {
                  logger.error("Failed in Loading Doc Store Meta Data : Cause : " + e.getMessage(), e);
              }
          }
          return docStoreMetaData;
      }
  
  }