package com.atlassian.plugin.validation;
   
   import com.google.common.io.InputSupplier;
   import org.dom4j.Document;
   import org.dom4j.DocumentException;
   import org.dom4j.io.SAXReader;
   
   import java.io.IOException;
   import java.io.InputStream;
  import java.io.Reader;
  
  /**
   * @since 3.0.0
   */
  abstract class Dom4jUtils {
      private Dom4jUtils() {
      }
  
      public static Document readDocument(final InputStream input) {
          try {
              return getSaxReader().read(input);
          } catch (DocumentException e) {
              throw new RuntimeException(e);
          }
      }
  
      /**
       * @deprecated Please use {@link #readDocument(java.io.InputStream)}. Since v4.0
       */
      @Deprecated
      public static Document readDocument(InputSupplier<? extends Reader> input) {
          try (Reader reader = input.getInput()) {
              return readDocument(reader);
          } catch (DocumentException e) {
              throw new RuntimeException(e);
          } catch (IOException e) {
              throw new RuntimeException(e);
          }
      }
  
      private static Document readDocument(Reader reader) throws DocumentException {
          return getSaxReader().read(reader);
      }
  
      private static SAXReader getSaxReader() {
          final SAXReader reader = new SAXReader();
          reader.setMergeAdjacentText(true);
          return reader;
      }
  }