HttpHeaderBuilder.java

/*
** Module   : HttpHeaderBuilder.java
** Abstract : Implementation of the builtin class.
**
** Copyright (c) 2019-2023, Golden Code Development Corporation.
**
** -#- -I- --Date-- -------------------------------Description--------------------------------
** 001 CA  20190526 First version, stubs taken by converting the skeleton using FWD.
** 002 CA  20191024 Added method support levels and updated the class support level.
** 003 ME  20200512 Add missing methods as of OE 11.7.4.
** 004 CA  20210216 Fixed getRegistry() - the static var must be assigned, and not re-initialized.
** 005 CA  20210221 Fixed 'qualified', 'extent' and 'returns' annotations at the legacy
**                  signature.
** 006 ME  20210519 Fix registry lazy loading.
** 007 CA  20231031 Fixed object var def, which requires TypeFactory to have its OO type set. 
** 008 CA  20231113 The 'execute' method must be annotated with LegacySignature Type.Execute, and also can be
**                  dropped if is a no-op.
*/

/*
** 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.
** 
**   0. Attribution Requirement.
** 
**     You must preserve all legal notices or author attributions in the covered
**     work or Appropriate Legal Notices displayed by works containing the covered
**     work.  You may not remove from the covered work any author or developer
**     credit already included within the covered work.
** 
**   1. No License To Use Trademarks.
** 
**     This license does not grant any license or rights to use the trademarks
**     Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
**     of Golden Code Development Corporation. You are not authorized to use the
**     name Golden Code, FWD, or the names of any author or contributor, for
**     publicity purposes without written authorization.
** 
**   2. No Misrepresentation of Affiliation.
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**     You may not represent yourself as Golden Code Development Corporation or FWD.
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**     You may not represent yourself for publicity purposes as associated with
**     Golden Code Development Corporation, FWD, or any author or contributor to
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**     versions of the covered work must be marked in a reasonable way to make it
**     clear that the modified work is not originating from Golden Code Development
**     Corporation or FWD.  All modified versions must contain the notices of
**     attribution required in this license.
*/

package com.goldencode.p2j.oo.net.http;

import com.goldencode.p2j.util.*;
import com.goldencode.p2j.util.BlockManager.Action;
import com.goldencode.p2j.util.BlockManager.Condition;
import com.goldencode.p2j.oo.core.*;
import com.goldencode.p2j.oo.lang.*;
import com.goldencode.p2j.security.*;

import static com.goldencode.p2j.util.BlockManager.*;
import static com.goldencode.p2j.report.ReportConstants.*;
import static com.goldencode.p2j.util.InternalEntry.Type;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;

/**
 * Business logic (converted to Java from the 4GL source code
 * in OpenEdge/Net/HTTP/HttpHeaderBuilder.cls).
 */
@LegacyResource(resource = "OpenEdge.Net.HTTP.HttpHeaderBuilder")
@LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
public abstract class HttpHeaderBuilder
extends ConfigBuilder
{
   private static final String SEMICOLON_PARAM_HEADER_BUILDER = "OpenEdge.Net.HTTP.SemicolonParamHeaderBuilder";
   private static final String CONTENT_TYPE_HEADER_BUILDER = "OpenEdge.Net.HTTP.ContentTypeHeaderBuilder";
   private static final String CONTENT_DISPOSITION_HEADER_BUILDER = "OpenEdge.Net.HTTP.ContentDispositionHeaderBuilder";
   private static final String DEFAULT_HEADER_BUILDER = "OpenEdge.Net.HTTP.DefaultHeaderBuilder";
   private static final String AUTORIZATION_HEADER_BUILDER = "OpenEdge.Net.HTTP.AuthorizationHeaderBuilder";
   protected static final String HTTP_BUILDERREGISTRY = "openedge.net.http.builderregistry";
   protected static final String HTTP_HTTPHEADERBUILDER = "openedge.net.http.httpheaderbuilder";

   /** Header name. */
   private final character headerName = UndoableFactory.character();
   /** Header. */
   protected final object<? extends HttpHeader> header = TypeFactory.object(HttpHeader.class);
   
   private HashMap<character, character> parameters;

   /** Registry */
   private static ContextLocal<object<? extends BuilderRegistry>> REGISTRY = 
         new ContextLocal<object<? extends BuilderRegistry>>()
   {
      /**
       * Initial value.
       */
      @Override
      protected object<? extends BuilderRegistry> initialValue()
      {
         return TypeFactory.object(BuilderRegistry.class);
      }
   };

   /**
    * Execute method.
    */
   @LegacySignature(type = Type.EXECUTE)
   public void __net_http_HttpHeaderBuilder_execute__()
   {
      onBlockLevel(Condition.ERROR, Action.THROW);
   }

   @LegacySignature(type = Type.CONSTRUCTOR)
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL | RT_LVL_FULL)
   public static void __net_http_HttpHeaderBuilder_constructor__static__()
   {
      externalProcedure(HttpHeaderBuilder.class, new Block((Body) () ->
      {
         onBlockLevel(Condition.ERROR, Action.THROW);
      }));
   }

   @LegacySignature(returns = "OBJECT", type = Type.METHOD, name = "AddParameter", qualified = HTTP_HTTPHEADERBUILDER, parameters = {
            @LegacyParameter(name = "pName", type = "CHARACTER", mode = "INPUT"),
            @LegacyParameter(name = "pValue", type = "CHARACTER", mode = "INPUT") })
   public object<? extends HttpHeaderBuilder> addParameter(final character _pName,
            final character _pValue)
   {
      character pName = TypeFactory.initInput(_pName);
      character pValue = TypeFactory.initInput(_pValue);

      return function(HttpHeaderBuilder.class, this, "AddParameter", object.class, new Block((Body) () -> {
         Assert.notNullOrEmpty(pName, new character("Parameter name"));
         Assert.notNull(pValue, new character("Parameter value"));
         
         // add this as option just to be OE compliant
         setOption(new character("param+" + pName.getValue()), pValue);
         
         if (parameters == null)
            parameters = new HashMap<character, character>();
            
         parameters.put(pName, pValue);
         
         returnNormal(new object(this));
      }));
   }
   
   /**
    * Get created header.
    * 
    * @return created header.
    */
   @LegacySignature(returns = "OBJECT", qualified = "OpenEdge.Net.HTTP.HttpHeader", type = Type.GETTER, name = "Header")
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   public abstract object<? extends HttpHeader> getHeader();

   /**
    * Get header name.
    * @return header name.
    */
   @LegacySignature(returns = "CHARACTER", type = Type.GETTER, name = "HeaderName")
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   protected character getHeaderName()
   {
      return function(this, "HeaderName", character.class, new Block((Body) () -> 
      {
         returnNormal(headerName);
      }));
   }

   /**
    * Get registry.
    * 
    * @return registry.
    */
   @LegacySignature(returns = "OBJECT", qualified = "OpenEdge.Net.HTTP.BuilderRegistry", type = Type.GETTER, name = "Registry")
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL | RT_LVL_FULL)
   public static object<? extends BuilderRegistry> getRegistry()
   {
      return function(HttpHeaderBuilder.class, "Registry", object.class, new Block((Body) () ->
      {
         if (!REGISTRY.get()._isValid())
         {
            REGISTRY.get().assign(ObjectOps.newInstance(BuilderRegistry.class, "I",
                     ObjectOps.getLegacyClass(HttpHeaderBuilder.class)));
            initializeRegistry(REGISTRY.get());
         }
         returnNormal(REGISTRY.get());
      }));
   }


   /**
    * Constructor.
    * 
    * @param _pcHeaderName header name.
    */
   @LegacySignature(type = Type.CONSTRUCTOR, parameters = 
   {
      @LegacyParameter(name = "pcHeaderName", type = "CHARACTER", mode = "INPUT")
   })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   protected void __net_http_HttpHeaderBuilder_constructor__(final character _pcHeaderName)
   {
      character pcHeaderName = TypeFactory.initInput(_pcHeaderName);
      
      internalProcedure(this, "__net_http_HttpHeaderBuilder_constructor__", new Block((Body) () -> 
      {
         __net_http_ConfigBuilder_constructor__();
         Assert.notNullOrEmpty(pcHeaderName, new character("Header name"));
         
         this.headerName.assign(pcHeaderName);
      }));
   }

   
   /**
    * Builder director method.
    * 
    * @param _hName header name.
    * 
    * @return A builder for the requested type.
    */
   @LegacySignature(returns = "OBJECT", type = Type.METHOD, name = "Build", qualified = HTTP_HTTPHEADERBUILDER, parameters = {
            @LegacyParameter(name = "hName", type = "CHARACTER", mode = "INPUT") })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL | RT_LVL_FULL)
   public static object<? extends HttpHeaderBuilder> build(final character _hName)
   {
      character hName = TypeFactory.initInput(_hName);
      object<? extends HttpHeaderBuilder> builder = TypeFactory.object(HttpHeaderBuilder.class);
      object<? extends LegacyClass> builderType = TypeFactory.object(LegacyClass.class);
      
      return function(HttpHeaderBuilder.class, "Build", object.class, new Block((Body) () ->
      {
         Assert.notNullOrEmpty(hName, new character("Header name"));
         builderType.assign(getRegistry().ref().get(hName));
         if (!builderType._isValid())
         {
            builderType.assign(getRegistry().ref().get(new character("*")));
         }
         Assert.isType(builderType, ObjectOps.getLegacyClass(HttpHeaderBuilder.class));
         builder.assign(ObjectOps.newInstance(builderType.ref().getType(), "I", hName));
         if (ObjectOps.typeOf(builder, ISupportInitialize.class).booleanValue())
         {
            ObjectOps.cast(builder, ISupportInitialize.class).ref().initialize();
         }
         returnNormal(builder);
      }));
   }

   private static void initializeRegistry(final object<? extends BuilderRegistry> _poRegistry)
   {
      internalProcedure(HttpHeaderBuilder.class, "InitializeRegistry", new Block((Body) () ->
      {
         _poRegistry.ref().put(new character("*"),
                  ObjectOps.getLegacyClass(DefaultHeaderBuilder.class));
         _poRegistry.ref().put(new character("Content-Disposition"),
                  ObjectOps.getLegacyClass(ContentDispositionHeaderBuilder.class));
         _poRegistry.ref().put(new character("Content-Type"),
                  ObjectOps.getLegacyClass(ContentTypeHeaderBuilder.class));
         _poRegistry.ref().put(new character("Cookie"),
                  ObjectOps.getLegacyClass(SemicolonParamHeaderBuilder.class));
         _poRegistry.ref().put(new character("WWW-Authentication"),
                  ObjectOps.getLegacyClass(AuthorizationHeaderBuilder.class));
         _poRegistry.ref().put(new character("Authorization"),
                  ObjectOps.getLegacyClass(AuthorizationHeaderBuilder.class));
      }));

   }

   /**
    * Sets the header's parameter delimiter.
    * 
    * @param _delim The delimter to use between parameter.
    * 
    * @return The current builder object.
    */
   @LegacySignature(returns = "OBJECT", type = Type.METHOD, name = "ParametersDelimitedBy", 
         qualified = HTTP_HTTPHEADERBUILDER, parameters = 
   {
      @LegacyParameter(name = "delim", type = "CHARACTER", mode = "INPUT")
   })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   public object<? extends HttpHeaderBuilder> parametersDelimitedBy(final character _delim)
   {
      character delim = TypeFactory.initInput(_delim);
      
      return function(this, "ParametersDelimitedBy", object.class, new Block((Body)() -> 
      {
         Assert.notNull(delim, new character("Parameter delimiter"));
         
         if (StringUtils.isEmpty(delim.getValue()))
            undoThrow(ObjectOps.newInstance(AssertionFailedError.class, "II", "Parameter delimiter cannot be empty", 0));
         
         setOption(new character("paramDelimiter"), delim);
         returnNormal(new object<>(this));
      }));
   }

   /**
    * Sets the header's value.
    * 
    * @param _value The complete (unparsed) header value.
    * 
    * @return The current builder object.
    */
   @LegacySignature(returns = "OBJECT", type = Type.METHOD, name = "Value", 
         qualified = HTTP_HTTPHEADERBUILDER, parameters = 
   {
      @LegacyParameter(name = "value", type = "CHARACTER", mode = "INPUT")
   })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   public object<? extends HttpHeaderBuilder> value(final character _value)
   {
      character value = TypeFactory.initInput(_value);
      
      return function(this, "Value", object.class, new Block((Body)() -> 
      {
         Assert.notNull(value, new character("Header value"));
         setOption(new character("hdrValue"), value);
         returnNormal(new object<>(this));
      }));
   }

   protected Map<character, character> getParameters()
   {
      return parameters != null ? parameters : Collections.emptyMap();
   }
}