| // $Id$ |
| // |
| // 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.Generic; |
| using System.Text; |
| |
| namespace Org.Apache.Etch.Bindings.Csharp.Msg |
| { |
| |
| ///A typed map of key/value pairs, where the type is a Type, each key is a Field, |
| ///and each value is of arbitrary type chosen from the basic java types boolean, byte, |
| ///short, int, long, float, double, String, an array of those, the extended types ArrayValue |
| ///and StructValue, and specific types supported by ValueFactory. |
| ///StructValue is not protected against concurrent access. |
| public class StructValue |
| { |
| ///<summary>Constructs the StructValue with default length.</summary> |
| ///<param name="type">the type of the struct (or the action or event if |
| ///this is a message).</param> |
| ///<param name="vf">the value factory for this struct</param> |
| public StructValue(XType type, ValueFactory vf) |
| : this(type, vf, 0) |
| { |
| // nothing to do. |
| } |
| |
| ///<summary>Constructs the StructValue.</summary> |
| ///<param name="type">the type of the struct (or the action or event if |
| ///this is a message).</param> |
| ///<param name="length">the expected number of name/value pairs.</param> |
| public StructValue(XType type, ValueFactory vf, int length) |
| { |
| if (type == null) |
| throw new ArgumentNullException("type == null"); |
| |
| if (vf == null) |
| throw new ArgumentNullException("vf == null"); |
| |
| this.type = type; |
| this.fields = new Dictionary<Field, Object>(length > 0 ? (length * 4 + 2) / 3 : DEFAULT_SIZE); |
| this.level = vf.GetLevel(); |
| } |
| |
| private const int DEFAULT_SIZE = 8; |
| |
| private readonly XType type; |
| |
| private readonly Dictionary<Field, Object> fields; |
| |
| private readonly Validator.Level level; |
| |
| /// <summary> |
| /// The struct type, or message action or event. |
| /// </summary> |
| public XType GetXType |
| { |
| get |
| { |
| return type; |
| } |
| } |
| |
| /// <summary> |
| /// The validation level. |
| /// </summary> |
| public Validator.Level Level |
| { |
| get |
| { |
| return level; |
| } |
| } |
| |
| /// <summary>Compares the type of this struct to another type.</summary> |
| /// <param name="otherType">otherType the type to compare this type to.</param> |
| /// <returns>true if this struct is of the specified type.</returns> |
| public bool IsType(XType otherType) |
| { |
| return type.Equals(otherType); |
| } |
| |
| /// <summary>Checks a struct for having the expected type.</summary> |
| /// <param name="expectedType">expectedType the expected type of this struct.</param> |
| /// Exception: |
| /// throws IllegalArgumentException if the type is not as expected. |
| public void CheckType(XType expectedType) |
| { |
| if(!IsType(expectedType)) |
| throw new ArgumentException(); |
| } |
| |
| public Dictionary<Field, Object>.Enumerator GetEnumerator() |
| { |
| return fields.GetEnumerator(); |
| } |
| |
| public Dictionary<Field, Object>.KeyCollection Keys |
| { |
| get |
| { |
| return fields.Keys; |
| } |
| } |
| |
| public bool ContainsKey(Field key) |
| { |
| return fields.ContainsKey(key); |
| } |
| |
| /// <summary>Defined to get the Object return type</summary> |
| /// <param name="key"></param> |
| /// <returns></returns> |
| public Object Get(Field key) |
| { |
| object value; |
| return fields.TryGetValue(key, out value) ? value : null; |
| } |
| |
| /// <summary> |
| /// Overriding Dictionary's Add(key, value) function |
| /// </summary> |
| /// <param name="key"></param> |
| /// <param name="value"></param> |
| public void Add(Field key, Object value) |
| { |
| if (value == null) |
| { |
| fields.Remove(key); |
| return; |
| } |
| |
| if (level != Validator.Level.NONE) |
| { |
| Validator v = type.GetValidator(key); |
| |
| if (v == null && level == Validator.Level.FULL) |
| throw new ArgumentException(String.Format( |
| "validator missing for type {0} field {1}", type, key)); |
| |
| if (v != null && !v.Validate(value)) |
| throw new ArgumentException(String.Format( |
| "validator {0} failed for type {1} field {2} : value {3}", |
| v, type, key, value)); |
| } |
| |
| fields[key] = value; |
| } |
| |
| public Object this[Field key] |
| { |
| get |
| { |
| return Get(key); |
| } |
| set |
| { |
| Add(key, value); |
| } |
| } |
| |
| public void Remove(Field key) |
| { |
| fields.Remove(key); |
| } |
| |
| public int Count |
| { |
| get |
| { |
| return fields.Count; |
| } |
| } |
| |
| /// Override |
| public override string ToString() |
| { |
| return string.Format( "{0}: {1}", type, PrintElementsOfMap() ); |
| } |
| |
| /// <summary> |
| /// Utility function to print the elements of a |
| /// map like the way Java does (for hashmap). |
| /// </summary> |
| /// <returns></returns> |
| private string PrintElementsOfMap() |
| { |
| StringBuilder sb = new StringBuilder(); |
| sb.Append( "{" ); |
| int i = 0; |
| foreach ( KeyValuePair<Field, Object> me in this ) |
| { |
| if ( i != 0 ) |
| sb.Append( ", " ); |
| sb.Append( me.Key ); |
| sb.Append( "=" ); |
| sb.Append( me.Value ); |
| i++; |
| } |
| |
| sb.Append( "}" ); |
| |
| return sb.ToString(); |
| } |
| |
| } |
| } |