Example #1
0
        //Rolls back index to a chosen ID
        private void  RollBackLast(int id)
        {
            // System.out.println("Attempting to rollback to "+id);
            System.String ids  = "-" + id;
            IndexCommit   last = null;

            System.Collections.ICollection commits = IndexReader.ListCommits(dir);
            for (System.Collections.IEnumerator iterator = commits.GetEnumerator(); iterator.MoveNext();)
            {
                IndexCommit commit = (IndexCommit)iterator.Current;
                System.Collections.Generic.IDictionary <string, string> ud = commit.GetUserData();
                if (ud.Count > 0)
                {
                    if (((System.String)ud["index"]).EndsWith(ids))
                    {
                        last = commit;
                    }
                }
            }

            if (last == null)
            {
                throw new System.SystemException("Couldn't find commit point " + id);
            }

            IndexWriter w = new IndexWriter(dir, new WhitespaceAnalyzer(), new RollbackDeletionPolicy(this, id), MaxFieldLength.UNLIMITED, last);

            System.Collections.Generic.IDictionary <string, string> data = new System.Collections.Generic.Dictionary <string, string>();
            data["index"] = "Rolled back to 1-" + id;
            w.Commit(data);
            w.Close();
        }
Example #2
0
 public override IDictionary <string, string> GetUserData()
 {
     return(cp.GetUserData());
 }
Example #3
0
            public virtual void  OnInit(System.Collections.IList commits)
            {
                for (System.Collections.IEnumerator iterator = commits.GetEnumerator(); iterator.MoveNext();)
                {
                    IndexCommit commit = (IndexCommit)iterator.Current;
                    System.Collections.Generic.IDictionary <string, string> userData = commit.GetUserData();
                    if (userData.Count > 0)
                    {
                        // Label for a commit point is "Records 1-30"
                        // This code reads the last id ("30" in this example) and deletes it
                        // if it is after the desired rollback point
                        System.String x       = (System.String)userData["index"];
                        System.String lastVal = x.Substring(x.LastIndexOf("-") + 1);
                        int           last    = System.Int32.Parse(lastVal);
                        if (last > rollbackPoint)
                        {
                            /*
                             * System.out.print("\tRolling back commit point:" +
                             * " UserData="+commit.getUserData() +")  ("+(commits.size()-1)+" commit points left) files=");
                             * Collection files = commit.getFileNames();
                             * for (Iterator iterator2 = files.iterator(); iterator2.hasNext();) {
                             * System.out.print(" "+iterator2.next());
                             * }
                             * System.out.println();
                             */

                            commit.Delete();
                        }
                    }
                }
            }
Example #4
0
 public override System.Collections.Generic.IDictionary <string, string> GetUserData()
 {
     return(cp.GetUserData());
 }