/*
    * Copyright 2012-2013 smartics, Kronseder & Reiner GmbH
    *
    * Licensed 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.
   */
  package de.smartics.properties.tutorial.property.custom;
  
  import java.io.Serializable;
  
  import org.apache.commons.lang.ObjectUtils;
  import org.apache.commons.lang.StringUtils;
  
  import de.smartics.util.lang.Arg;
  
  /**
   * Sample to show how to construct instances of custom types.
   */
  public final class CredentialsProperty implements Serializable
  {
    // ********************************* Fields *********************************
  
    // --- constants ------------------------------------------------------------
  
    /**
     * The class version identifier.
     */
    private static final long serialVersionUID = 1L;
  
    // --- members --------------------------------------------------------------
  
    private final String userId;
  
    private final String password;
  
    // ****************************** Initializer *******************************
  
    // ****************************** Constructors ******************************
  
    /**
     * Default constructor.
     */
    private CredentialsProperty(final Builder builder)
    {
      this.userId = builder.userId;
      this.password = builder.password;
    }
  
    // ****************************** Inner Classes *****************************
  
    private static final class Builder
    {
      private String userId;
  
      private String password;
  
      Builder withUserId(final String userId)
      {
        this.userId = userId;
        return this;
      }
  
      Builder withPassword(final String password)
      {
        this.password = password;
        return this;
      }
  
      CredentialsProperty build()
      {
        return new CredentialsProperty(this);
      }
    }
  
    // ********************************* Methods ********************************
  
    // --- init -----------------------------------------------------------------
  
    // --- factory --------------------------------------------------------------
  
    public static CredentialsProperty fromString(final String string)
      throws IllegalArgumentException
    {
      Arg.checkNotBlank("string", string);
  
      final CredentialsProperty.Builder builder =
          new CredentialsProperty.Builder();
  
      final int splitIndex = string.indexOf(':');
      if (splitIndex == -1 || splitIndex == string.length() - 1)
     {
       builder.withUserId(string);
     }
     else
     {
       final String userId = string.substring(0, splitIndex);
       final String password = string.substring(splitIndex + 1);
       builder.withUserId(userId);
       builder.withPassword(password);
     }
 
     final CredentialsProperty property = builder.build();
     return property;
   }
 
   // --- get&set --------------------------------------------------------------
 
   public String getUserId()
   {
     return userId;
   }
 
   public String getPassword()
   {
     return password;
   }
 
   // --- business -------------------------------------------------------------
 
   // --- object basics --------------------------------------------------------
 
   /**
    * Returns the hash code of the object.
    *
    * @return the hash code.
    */
   @Override
   public int hashCode()
   {
     return userId.hashCode();
   }
 
   /**
    * Returns <code>true</code> if the given object is semantically equal to the
    * given object, <code>false</code> otherwise.
    *
    * @param object the instance to compare to.
    * @return <code>true</code> if the given object is semantically equal to the
    *         given object, <code>false</code> otherwise.
    */
   @Override
   public boolean equals(final Object object)
   {
     if (this == object)
     {
       return true;
     }
     else if (object == null || getClass() != object.getClass())
     {
       return false;
     }
 
     final CredentialsProperty other = (CredentialsProperty) object;
 
     return (userId.equals(other.userId) && ObjectUtils.equals(password,
         other.password));
   }
 
   /**
    * Returns the string representation of the object.
    *
    * @return the string representation of the object.
    */
   @Override
   public String toString()
   {
     final StringBuilder buffer = new StringBuilder();
 
     buffer.append(userId);
 
     if (StringUtils.isNotBlank(password))
     {
       buffer.append(':').append(password);
     }
 
     return buffer.toString();
   }
 }