DistributedSearcher.cs

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using System;
using System.Collections;
using System.Configuration;
using System.IO;
using System.Xml;
using Lucene.Net.Distributed;

namespace Lucene.Net.Distributed.Configuration
{
    public class DistributedSearcher
    {
        private int _id;
        private SearchMethod _eSearchMethod;
        private string _strLocation;

        public DistributedSearcher(XmlNode xSection)
        {
            
            XmlAttributeCollection attributeCollection = xSection.Attributes;
            if (attributeCollection == null)
                throw new ConfigurationErrorsException("xSection.Attributes invalid: " + Environment.NewLine + xSection.OuterXml);

            try
            {
                this._id = Convert.ToInt32(attributeCollection["id"].Value);
            }
            catch (Exception e)
            {
                throw new ConfigurationErrorsException("DistributedSearcher.id invalid: " + Environment.NewLine + xSection.OuterXml + Environment.NewLine + e.Message);
            }

            try
            {
                this._eSearchMethod = (SearchMethod)Enum.Parse(typeof(SearchMethod), attributeCollection["SearchMethod"].Value);
            }
            catch (Exception)
            {
                throw new ConfigurationErrorsException("DistributedSearcher.SearchMethod invalid: " + Environment.NewLine + xSection.OuterXml);
            }

            try
            {
                this._strLocation = attributeCollection["Location"].Value;
            }
            catch (Exception)
            {
                throw new ConfigurationErrorsException("DistributedSearcher.Location invalid: " + Environment.NewLine + xSection.OuterXml);
            }

            if (this.SearchMethod == SearchMethod.Local)
            {
                //check for file-system existence
                if (!Lucene.Net.Index.IndexReader.IndexExists(this.Location))
                    throw new ConfigurationErrorsException("DistributedSearcher.Location not an index: " + Environment.NewLine + this.Location);
            }
            else if (this.SearchMethod == SearchMethod.Distributed)
            {
                //exec ping check if needed
            }

        }

        public int Id
        {
            get { return this._id; }
        }

        public SearchMethod SearchMethod
        {
            get {return this._eSearchMethod;}
        }
        public string Location
        {
            get {return this._strLocation;}
        }
    }
}