Esempio n. 1
0
        /// <summary>
        /// Setup this workload manager for the specified spider.
        /// </summary>
        /// <param name="spider">The spider using this workload manager.</param>
        public virtual void Init(Spider spider)
        {
            this.spider    = spider;
            this.addLock   = new Semaphore(1, 1);
            this.workLatch = new AutoResetEvent(false);

            this.connectionString = spider.Options.DbConnectionString;

            this.statements.Add(this.stmtClear    = new RepeatableStatement(this.holder.getSQLClear()));
            this.statements.Add(this.stmtClear2   = new RepeatableStatement(this.holder.getSQLClear2()));
            this.statements.Add(this.stmtAdd      = new RepeatableStatement(this.holder.getSQLAdd()));
            this.statements.Add(this.stmtAdd2     = new RepeatableStatement(this.holder.getSQLAdd2()));
            this.statements.Add(this.stmtGetWork  = new RepeatableStatement(this.holder.getSQLGetWork()));
            this.statements.Add(this.stmtGetWork2 = new RepeatableStatement(this.holder.getSQLGetWork2()));
            this.statements
            .Add(this.stmtWorkloadEmpty = new RepeatableStatement(this.holder.getSQLWorkloadEmpty()));
            this.statements.Add(this.stmtSetWorkloadStatus = new RepeatableStatement(
                                    this.holder.getSQLSetWorkloadStatus()));
            this.statements.Add(this.stmtSetWorkloadStatus2 = new RepeatableStatement(
                                    this.holder.getSQLSetWorkloadStatus2()));
            this.statements.Add(this.stmtGetDepth  = new RepeatableStatement(this.holder.getSQLGetDepth()));
            this.statements.Add(this.stmtGetSource = new RepeatableStatement(this.holder.getSQLGetSource()));
            this.statements.Add(this.stmtResume    = new RepeatableStatement(this.holder.getSQLResume()));
            this.statements.Add(this.stmtResume2   = new RepeatableStatement(this.holder.getSQLResume2()));
            this.statements
            .Add(this.stmtGetWorkloadID              = new RepeatableStatement(this.holder.getSQLGetWorkloadID()));
            this.statements.Add(this.stmtGetHostID   = new RepeatableStatement(this.holder.getSQLGetHostID()));
            this.statements.Add(this.stmtGetNextHost = new RepeatableStatement(this.holder.getSQLGetNextHost()));
            this.statements
            .Add(this.stmtSetHostStatus          = new RepeatableStatement(this.holder.getSQLSetHostStatus()));
            this.statements.Add(this.stmtGetHost = new RepeatableStatement(this.holder.getSQLGetHost()));

            try
            {
                Open();

                this.maxURLSize  = GetColumnSize("spider_workload", "url");
                this.maxHostSize = GetColumnSize("spider_host", "host");
            }
            catch (Exception e)
            {
                throw (new WorkloadException(e));
            }
        }
        /// <summary>
        /// Setup this workload manager for the specified spider.
        /// </summary>
        /// <param name="spider">The spider using this workload manager.</param>
        public virtual void Init(Spider spider)
        {
            this.spider = spider;
            this.addLock = new Semaphore(1, 1);
            this.workLatch = new AutoResetEvent(false);

            this.connectionString = spider.Options.DbConnectionString;

            this.statements.Add(this.stmtClear = new RepeatableStatement(this.holder.getSQLClear()));
            this.statements.Add(this.stmtClear2 = new RepeatableStatement(this.holder.getSQLClear2()));
            this.statements.Add(this.stmtAdd = new RepeatableStatement(this.holder.getSQLAdd()));
            this.statements.Add(this.stmtAdd2 = new RepeatableStatement(this.holder.getSQLAdd2()));
            this.statements.Add(this.stmtGetWork = new RepeatableStatement(this.holder.getSQLGetWork()));
            this.statements.Add(this.stmtGetWork2 = new RepeatableStatement(this.holder.getSQLGetWork2()));
            this.statements
                .Add(this.stmtWorkloadEmpty = new RepeatableStatement(this.holder.getSQLWorkloadEmpty()));
            this.statements.Add(this.stmtSetWorkloadStatus = new RepeatableStatement(
                this.holder.getSQLSetWorkloadStatus()));
            this.statements.Add(this.stmtSetWorkloadStatus2 = new RepeatableStatement(
                this.holder.getSQLSetWorkloadStatus2()));
            this.statements.Add(this.stmtGetDepth = new RepeatableStatement(this.holder.getSQLGetDepth()));
            this.statements.Add(this.stmtGetSource = new RepeatableStatement(this.holder.getSQLGetSource()));
            this.statements.Add(this.stmtResume = new RepeatableStatement(this.holder.getSQLResume()));
            this.statements.Add(this.stmtResume2 = new RepeatableStatement(this.holder.getSQLResume2()));
            this.statements
                .Add(this.stmtGetWorkloadID = new RepeatableStatement(this.holder.getSQLGetWorkloadID()));
            this.statements.Add(this.stmtGetHostID = new RepeatableStatement(this.holder.getSQLGetHostID()));
            this.statements.Add(this.stmtGetNextHost = new RepeatableStatement(this.holder.getSQLGetNextHost()));
            this.statements
                .Add(this.stmtSetHostStatus = new RepeatableStatement(this.holder.getSQLSetHostStatus()));
            this.statements.Add(this.stmtGetHost = new RepeatableStatement(this.holder.getSQLGetHost()));

            try
            {
                Open();

                this.maxURLSize = GetColumnSize("spider_workload", "url");
                this.maxHostSize = GetColumnSize("spider_host", "host");
            }
            catch (Exception e)
            {
                throw (new WorkloadException(e));
            }
        }
 /// <summary>
 /// Construct a Results object.
 /// </summary>
 /// <param name="parent">The parent object, the RepeatableStatement.</param>
 /// <param name="statement">The PreparedStatement for these results.</param>
 /// <param name="resultSet">The ResultSet.</param>
 public Results(RepeatableStatement parent, DbCommand statement, DbDataReader resultSet)
 {
     this.statement = statement;
     this.resultSet = resultSet;
     this.parent    = parent;
 }
 /// <summary>
 /// Construct a Results object.
 /// </summary>
 /// <param name="parent">The parent object, the RepeatableStatement.</param>
 /// <param name="statement">The PreparedStatement for these results.</param>
 /// <param name="resultSet">The ResultSet.</param>
 public Results(RepeatableStatement parent, DbCommand statement, DbDataReader resultSet)
 {
     this.statement = statement;
     this.resultSet = resultSet;
     this.parent = parent;
 }