XCommonImpl.java

/*
** Module   : XCommonImpl
** Abstract : SAX attributes, reader, writer common fatures iplementation.
**
** Copyright (c) 2013-2023, Golden Code Development Corporation.
**
** -#- -I- --Date-- ---------------------------------------Description---------------------------------------
** 001 EVL 20130214 Created initial version. Implementation is limited to the stubs to get the
**                  converted java code compiled.
** 002 CA  20130221 Added Deletable support. This resource doesn't have NEXT/PREV-SIBLING support. 
** 003 OM  20130304 Refactored isValid and isUnknown of WrappedResource to valid and unknown.
** 004 CA  20130603 resourceDelete must return a boolean value.
** 005 EVK 20130903 Made class abstract and move some methods to children. Cosmetic refactoring.
** 006 EVK 20131001 Moved from XEntityImpl next methods:
**                  invalidArgumentError, invalidArgumentAssignError.
** 007 EVK 20140113 Added method valid and resourceDelete to properly remove the object.
** 008 OM  20201030 Invalid attribute API support for getters/setters.
** 009 VVT 20221003 CommonHandle.getResourceType() method renamed to resourceType() to prevent conflicts
**                  with namesakes in DMO. See #6694.
** 010 CA  20230215 Improved other cases to reduce BDT usage from within FWD runtime.
*/

/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero General Public License as
** published by the Free Software Foundation, either version 3 of the
** License, or (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
** 
** Additional terms under GNU Affero GPL version 3 section 7:
** 
**   Under Section 7 of the GNU Affero GPL version 3, the following additional
**   terms apply to the works covered under the License.  These additional terms
**   are non-permissive additional terms allowed under Section 7 of the GNU
**   Affero GPL version 3 and may not be removed by you.
** 
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** 
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**     work or Appropriate Legal Notices displayed by works containing the covered
**     work.  You may not remove from the covered work any author or developer
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*/

package com.goldencode.p2j.xml;

import com.goldencode.p2j.util.*;

/**
 * Implementation the common features for XML related Progress objects.
 */
public abstract class XCommonImpl
extends HandleChain
implements XCommon
{
   /** Validation flag. */
   protected boolean isValid = true;

   // Attributes
   /**
    * Gets the value of the XML schema file for elements with no namespaces.
    *
    * @return   The value of the nonamespace-schema-location attribute.
    *           Default value is ""
    */
   @Override
   public character getNonamespaceSchemaLocation()
   {
      invalidAttribute("NONAMESPACE-SCHEMA-LOCATION", false);
      return new character();
   }
   
   /**
    * Setting the new value for the nonamespace-schema-location attribute.
    * 
    * @param    location
    *           New value of the nonamespace-schema-location attribute to set.
    */
   @Override
   public void setNonamespaceSchemaLocation(character location)
   {
      invalidAttribute("NONAMESPACE-SCHEMA-LOCATION", true);
   }
   
   /**
    * Setting the new value for the nonamespace-schema-location attribute.
    * 
    * @param    location
    *           New value of the nonamespace-schema-location attribute to set.
    */
   @Override
   public void setNonamespaceSchemaLocation(String location)
   {
      setNonamespaceSchemaLocation(new character(location));
   }
   
   // Methods
   /**
    * Adding new match pair for namespace schema and physical file location.
    *
    * @param    namespace
    *           Target namespace of the schema or am empty string or Unknown value.
    * @param    location
    *           Location of the XML schema file.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical addSchemaLocation(String namespace, character location)
   {
      return addSchemaLocation(new character(namespace), location);
   }

   /**
    * Adding new match pair for namespace schema and physical file location.
    *
    * @param    namespace
    *           Target namespace of the schema or am empty string or Unknown value.
    * @param    location
    *           Location of the XML schema file.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical addSchemaLocation(character namespace, String location)
   {
      return addSchemaLocation(namespace, new character(location));
   }

   /**
    * Adding new match pair for namespace schema and physical file location.
    *
    * @param    namespace
    *           Target namespace of the schema or am empty string or Unknown value.
    * @param    location
    *           Location of the XML schema file.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical addSchemaLocation(String namespace, String location)
   {
      return addSchemaLocation(new character(namespace), new character(location));
   }

   /**
    * Adding new match pair for namespace schema and physical file location.
    *
    * @param    namespace
    *           Target namespace of the schema or am empty string or Unknown value.
    * @param    location
    *           Location of the XML schema file.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical addSchemaLocation(character namespace, character location)
   {
      invalidAttribute("ADD-SCHEMA-LOCATION", false);
      return new logical(true);
   }

   /**
    * Removes the specified attribute.
    * 
    * @param    name
    *           The name of the attribute to remove.
    * 
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(character name)
   {
      return removeAttribute(name, new character());
   }
   
   /**
    * Removes the specified attribute.
    * 
    * @param    name
    *           The name of the attribute to remove.
    * 
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(String name)
   {
      return removeAttribute(new character(name), new character());
   }
   
   /**
    * Removes the specified attribute.
    *
    * @param    index
    *           The 1-based index of the attribute to remove.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(NumberType index)
   {
      return removeAttribute(index, new character());
   }

   /**
    * Removes the specified attribute.
    *
    * @param    index
    *           The 1-based index of the attribute to remove.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(double index)
   {
      return removeAttribute(new integer(index), new character());
   }

   /**
    * Removes the specified attribute.
    *
    * @param    name
    *           The name of the attribute to remove.
    * @param    uri
    *           The URI of the attribute to remove.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(String name, String uri)
   {
      return removeAttribute(new character(name), new character(uri));
   }

   /**
    * Removes the specified attribute.
    *
    * @param    name
    *           The name of the attribute to remove.
    * @param    uri
    *           The URI of the attribute to remove.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(String name, character uri)
   {
      return removeAttribute(new character(name), uri);
   }

   /**
    * Removes the specified attribute.
    *
    * @param    index
    *           The 1-based index of the attribute to remove.
    * @param    uri
    *           The URI of the attribute to remove.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(double index, character uri)
   {
      return removeAttribute(new integer(index), uri);
   }

   /**
    * Removes the specified attribute.
    *
    * @param    name
    *           The name of the attribute to remove.
    * @param    uri
    *           The URI of the attribute to remove.
    * 
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(character name, String uri)
   {
      return removeAttribute(name, new character(uri));
   }

   /**
    * Removes the specified attribute.
    *
    * @param    index
    *           The 1-based index of the attribute to remove.
    * @param    uri
    *           The URI of the attribute to remove.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(double index, String uri)
   {
      return removeAttribute(new integer(index), new character(uri));
   }

   /**
    * Removes the specified attribute.
    *
    * @param    index
    *           The 1-based index of the attribute to remove.
    * @param    uri
    *           The URI of the attribute to remove.
    *
    * @return   The <code>true</code> in case of success <code>false</code> otherwise.
    */
   @Override
   public logical removeAttribute(NumberType index, String uri)
   {
      return removeAttribute(index, new character(uri));
   }

   /**
    * Process and display invalid node error. It displays appropriate error message.
    *
    * @param    attribute
    *           The read-only attribute.
    */
   protected void invalidArgumentAssignError(String attribute)
   {
      if (attribute == null)
      {
         throw new IllegalArgumentException("The attribute is null !");
      }
      String msg = "Unable to assign UNKNOWN value to attribute %s on %s widget";
      String type = type().toUpperCase();
      String err = String.format(msg, attribute.toUpperCase(), type);
      ErrorManager.recordOrShowError(4083, err, false, true, false);
   }

   /**
    * Process and display invalid node error. It displays appropriate error message.
    *
    * @param    attribute
    *           The read-only attribute.
    */
   protected void invalidArgumentError(String attribute)
   {
      if (attribute == null)
      {
         throw new IllegalArgumentException("The attribute is null !");
      }
      String msg = "The %s attribute on the %s widget has invalid arguments";
      String type = type().toUpperCase();
      String err = String.format(msg, attribute.toUpperCase(), type);
      ErrorManager.recordOrShowError(4065, err, false, true, false);
   }

   /**
    * Reports if this object is valid for use.
    *
    * @return   <code>true</code> if we are valid (can be used).
    */
   @Override
   public boolean valid()
   {
      return isValid;
   }

   /**
    * Delete the resource.
    * 
    * @return   <code>true</code> if the resource was deleted.
    */
   @Override
   protected boolean resourceDelete()
   {
      isValid = false;
      return true;
   }

   /**
    * Check if this resource supports the PREV-SIBLING attribute.
    * 
    * @return   Always <code>false</code>.
    */
   @Override
   protected boolean hasPrevSibling()
   {
      return false;
   }
   
   /**
    * Check if this resource supports the NEXT-SIBLING attribute.
    * 
    * @return   Always <code>false</code>.
    */
   @Override
   protected boolean hasNextSibling()
   {
      return false;
   }
}