Document.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;

// for javadoc
using IndexReader = Lucene.Net.Index.IndexReader;
using ScoreDoc = Lucene.Net.Search.ScoreDoc;
using Searcher = Lucene.Net.Search.Searcher;

namespace Lucene.Net.Documents
{
    
    
    [Serializable]
    public sealed class Document
    {
        private class AnonymousClassEnumeration : System.Collections.IEnumerator
        {
            public AnonymousClassEnumeration(Document enclosingInstance)
            {
                InitBlock(enclosingInstance);
            }
            private void  InitBlock(Document enclosingInstance)
            {
                this.enclosingInstance = enclosingInstance;
                iter = Enclosing_Instance.fields.GetEnumerator();
            }
            private System.Object tempAuxObj;
            public bool MoveNext()
            {
                bool result = HasMoreElements();
                if (result)
                {
                    tempAuxObj = NextElement();
                }
                return result;
            }
            public void  Reset()
            {
                tempAuxObj = null;
            }
            public System.Object Current
            {
                get
                {
                    return tempAuxObj;
                }
                
            }
            private Document enclosingInstance;
            public Document Enclosing_Instance
            {
                get
                {
                    return enclosingInstance;
                }
                
            }
            internal System.Collections.IEnumerator iter;
            public bool HasMoreElements()
            {
                return iter.MoveNext();
            }
            public System.Object NextElement()
            {
                return iter.Current;
            }
        }
        internal System.Collections.Generic.IList<IFieldable> fields = new System.Collections.Generic.List<IFieldable>();
        private float boost = 1.0f;
        
        public Document()
        {
        }


        public float Boost
        {
            get { return boost; }
            set { this.boost = value; }
        }

        public void  Add(IFieldable field)
        {
            fields.Add(field);
        }
        
        public void  RemoveField(System.String name)
        {
            System.Collections.Generic.IEnumerator<IFieldable> it = fields.GetEnumerator();
            while (it.MoveNext())
            {
                IFieldable field = it.Current;
                if (field.Name.Equals(name))
                {
                    fields.Remove(field);
                    return ;
                }
            }
        }
        
        public void  RemoveFields(System.String name)
        {
            for (int i = fields.Count - 1; i >= 0; i--)
            {
                IFieldable field = fields[i];
                if (field.Name.Equals(name))
                {
                    fields.RemoveAt(i);
                }
            }
        }
        
        public Field GetField(System.String name)
        {
            return (Field) GetFieldable(name);
        }
        
        
        public IFieldable GetFieldable(System.String name)
        {
            foreach(IFieldable field in fields)
            {
                if (field.Name.Equals(name))
                    return field;
            }
            return null;
        }
        
        public System.String Get(System.String name)
        {
            foreach(IFieldable field in fields)
            {
                if (field.Name.Equals(name) && (!field.IsBinary))
                    return field.StringValue;
            }
            return null;
        }
        
        public System.Collections.Generic.IList<IFieldable> GetFields()
        {
            return fields;
        }
        
        private static readonly Field[] NO_FIELDS = new Field[0];
        
        public Field[] GetFields(System.String name)
        {
            var result = new System.Collections.Generic.List<Field>();
            foreach(IFieldable field in fields)
            {
                if (field.Name.Equals(name))
                {
                    result.Add((Field)field);
                }
            }
            
            if (result.Count == 0)
                return NO_FIELDS;
            
            return result.ToArray();
        }
        
        
        private static readonly IFieldable[] NO_FIELDABLES = new IFieldable[0];
        
        public IFieldable[] GetFieldables(System.String name)
        {
            var result = new System.Collections.Generic.List<IFieldable>();
            foreach(IFieldable field in fields)
            {
                if (field.Name.Equals(name))
                {
                    result.Add(field);
                }
            }
            
            if (result.Count == 0)
                return NO_FIELDABLES;
            
            return result.ToArray();
        }
        
        
        private static readonly System.String[] NO_STRINGS = new System.String[0];
        
        public System.String[] GetValues(System.String name)
        {
            var result = new System.Collections.Generic.List<string>();
            foreach(IFieldable field in fields)
            {
                if (field.Name.Equals(name) && (!field.IsBinary))
                    result.Add(field.StringValue);
            }
            
            if (result.Count == 0)
                return NO_STRINGS;
            
            return result.ToArray();
        }
        
        private static readonly byte[][] NO_BYTES = new byte[0][];
        
        public byte[][] GetBinaryValues(System.String name)
        {
            var result = new System.Collections.Generic.List<byte[]>();
            foreach(IFieldable field in fields)
            {
                if (field.Name.Equals(name) && (field.IsBinary))
                    result.Add(field.GetBinaryValue());
            }
            
            if (result.Count == 0)
                return NO_BYTES;

            return result.ToArray();
        }
        
        public byte[] GetBinaryValue(System.String name)
        {
            foreach(IFieldable field in fields)
            {
                if (field.Name.Equals(name) && (field.IsBinary))
                    return field.GetBinaryValue();
            }
            return null;
        }
        
        public override System.String ToString()
        {
            System.Text.StringBuilder buffer = new System.Text.StringBuilder();
            buffer.Append("Document<");
            for (int i = 0; i < fields.Count; i++)
            {
                IFieldable field = fields[i];
                buffer.Append(field.ToString());
                if (i != fields.Count - 1)
                    buffer.Append(" ");
            }
            buffer.Append(">");
            return buffer.ToString();
        }

        public System.Collections.Generic.IList<IFieldable> fields_ForNUnit
        {
            get { return fields; }
        }
    }
}