Metacat

import java.io.BufferedReader;

import java.io.FileReader;

          //check if user changed inine data or not if user doesn't have

          // write permission

          if (startCriticalSubTree)

          {

            NodeRecord node = null;

            String inlineData;

            try

            {

              node = (NodeRecord)currentUnChangedableSubtreeNodeStack.pop();

              // get file name from db

              String fileName = node.getNodeData();

              MetaCatUtil.debugMessage("in handle inline data", 35);

              MetaCatUtil.debugMessage("the inline data file name from node is: "+

                                      fileName, 40);

              inlineData = readInlineDataFromFileSystem(fileName);

            }

            catch (EmptyStackException ee)

            {

              MetaCatUtil.debugMessage("the stack is empty for text data", 32);

              throw new SAXException(PERMISSIONERROR);

            }

            catch (McdbException eee)

            {

              throw new SAXException(eee.getMessage());

            }

            if (!(textBuffer.toString()).equals(inlineData))

            {

              MetaCatUtil.debugMessage("inline data was changed by a user" +

                                       " who doesn't have permission", 30);

              throw new SAXException(PERMISSIONERROR);

            }//if

          }//if

  /* In eml2, the inline data wouldn't store in db, it store in file system

   * The db stores file name(without path).

   */

  public static String readInlineDataFromFileSystem(String fileName) 

                                              throws McdbException

  {

    String data = null;

    String path = MetaCatUtil.getOption("inlinedatafilepath");

    // the new file name will look like path/docid.rev.2

    File inlineDataDirectory = new File(path);

    File dataFile = new File(inlineDataDirectory, fileName);

    try

    {

      FileReader fileReader = new FileReader(dataFile);

      BufferedReader stringReader = new BufferedReader(fileReader);

      // read first line of data

      String tmp = stringReader.readLine();

      // pass first line data to data varible

      data = tmp;

      // at the end tmp will be null

      while (tmp != null)

      {

        // read a new line

        tmp = stringReader.readLine();

        // append new line to data

        if (tmp != null)

        {

          data = data+tmp;

        }

      }

    }

    catch (Exception e)

    {

      throw new McdbException(e.getMessage());

    }

    MetaCatUtil.debugMessage("the inline data retrieve from file: "+data, 50);

    return data;

  }