ContentTypeHeader.java

/*
** Module   : ContentTypeHeader.java
** Abstract : Implementation of the builtin class.
**
** Copyright (c) 2019-2023, Golden Code Development Corporation.
**
** -#- -I- --Date-- -------------------------------Description--------------------------------
** 001 IAS  20190923 First version.
** 002 ME   20201127 Log info for invalid media types (no error).
**          20201204 Use internalProcedure block for error handling.
** 003 CA   20210221 Fixed 'qualified', 'extent' and 'returns' annotations at the legacy
**                   signature.
**     VVT  20210917 Javadoc fixed. 
** 004 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.
** 
**     You may not represent yourself as Golden Code Development Corporation or FWD.
** 
**     You may not represent yourself for publicity purposes as associated with
**     Golden Code Development Corporation, FWD, or any author or contributor to
**     the covered work, without written authorization.
** 
**   3. No Misrepresentation of Source or Origin.
** 
**     You may not represent the covered work as solely your work.  All modified
**     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 java.util.Collections;
import java.util.HashSet;
import java.util.Set;

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

import com.goldencode.p2j.oo.lang.AppError;
import com.goldencode.p2j.oo.logging.IlogWriter;
import com.goldencode.p2j.oo.logging.VoidLogger;
import com.goldencode.p2j.util.*;
import com.goldencode.p2j.util.BlockManager.Action;
import com.goldencode.p2j.util.BlockManager.Condition;
import com.goldencode.p2j.util.InternalEntry.*;

/**
 * 
 * Content-Type header 
 *
 */
@LegacyResource(resource = "OpenEdge.Net.HTTP.ContentTypeHeader")
@LegacyResourceSupport(supportLvl = CVT_LVL_FULL| RT_LVL_FULL)
public class ContentTypeHeader extends HttpHeader
{
   /** Valid Content-Type values */
   private static final Set<String> VALID_TYPES = Collections.unmodifiableSet(
         new HashSet<String>()
         {{
           add("application"); 
           add("audio"); 
           add("image"); 
           // add("font");
           // add("example");
           add("message"); 
           //add("model");
           add("multipart"); 
           add("text"); 
           add("video"); 
         }}
   );
   
   /** Header name. */
   @LegacySignature(type = Type.PROPERTY, name = "Logger")
   protected object<? extends IlogWriter> logger = TypeFactory.object(IlogWriter.class);

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

   /**
    * Constructor.
    * @param name header name.
    */
   @LegacySignature(type = Type.CONSTRUCTOR, parameters = {
            @LegacyParameter(name = "name", type = "CHARACTER", mode = "INPUT") })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL | RT_LVL_FULL)
   public void __net_http_ContentTypeHeader_constructor__(final character name)
   {
      internalProcedure(ContentTypeHeader.class, this, "__net_http_ContentTypeHeader_constructor__", new Block((Body) () -> 
      {
         __net_http_HttpHeader_constructor__(name);
         this.paramDelimiter.assign(new character(";"));
      }));
   }

   /**
    * Constructor.
    * 
    * @param name header name.
    * @param val header value.
    */
   @LegacySignature(type = Type.CONSTRUCTOR, parameters = {
            @LegacyParameter(name = "name", type = "CHARACTER", mode = "INPUT"),
            @LegacyParameter(name = "val", type = "CHARACTER", mode = "INPUT") })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL | RT_LVL_FULL)
   public void __net_http_ContentTypeHeader_constructor__(final character name,
            final character val)
   {
      internalProcedure(ContentTypeHeader.class, this, "__net_http_ContentTypeHeader_constructor__", new Block((Body) () -> 
      {
         __net_http_HttpHeader_constructor__(name, val);
      }));
   }

   /**
    * Validates a header value
    * 
    * @param val header value to be validated.
    */
   @LegacySignature(type = Type.METHOD, name = "Validate", parameters = {
            @LegacyParameter(name = "val", type = "CHARACTER", mode = "INPUT") })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL | RT_LVL_FULL)
   @Override
   protected void validate(final character val)
   {
      internalProcedure(ContentTypeHeader.class, this, "Validate", new Block((Body) () -> {

         super.validate(val);
         String sval = val.getValue();

         if (sval != null && !sval.trim().isEmpty())
         {
            sval = TextOps.entries(sval, this.paramDelimiter.getValue())[0];
            int sTypeIdx = sval.indexOf('/');

            if (sTypeIdx == -1)
            {
               String msg = String.format(
                        "Header value must have at least 2 \"/\"-delimited parts: %s", sval);
               undoThrow(AppError.newInstance(msg, 0));
            }

            String type = sval.substring(0, sTypeIdx);

            if (!VALID_TYPES.contains(type.toLowerCase()))
            {
               getLogger().ref().info(TextOps
                        .substitute("Content-Type header has a non-standard type of &1", type));
            }
         }
      }));
   }

   @LegacySignature(returns = "LOGICAL", type = Type.METHOD, name = "SetParameterValue", parameters = {
            @LegacyParameter(name = "name", type = "CHARACTER", mode = "INPUT"),
            @LegacyParameter(name = "val", type = "CHARACTER", mode = "INPUT") })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL | RT_LVL_FULL)
   @Override
   public logical setParameterValue(character name, character val)
   {
      // boundary value is unquoted (double quote only)
      if ("boundary".equalsIgnoreCase(name.getValue()))
      {
         String sVal = val.getValue();
         if (sVal.startsWith("\"") && sVal.endsWith("\""))
            val.assign(sVal.substring(1, sVal.length() - 1));
      }

      return super.setParameterValue(name, val);
   }

   /**
    * Get the logger.
    * 
    * @return The logger.
    */
   @LegacySignature(returns = "OBJECT", qualified = "OpenEdge.Logging.ILogWriter", type = Type.GETTER, name = "Logger")
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL | RT_LVL_FULL)
   public object<? extends IlogWriter> getLogger()
   {
      if (!this.logger._isValid())
         this.logger.assign(ObjectOps.newInstance(VoidLogger.class));

      return this.logger;
   }

   /**
    * Set the logger.
    * 
    * @param logger the logger instance
    */
   @LegacySignature(type = Type.SETTER, name = "Logger", parameters = {
            @LegacyParameter(qualified = "OpenEdge.Logging.ILogWriter", name = "logger", type = "OBJECT", mode = "INPUT") })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL | RT_LVL_FULL)
   public void setLogger(object<? extends IlogWriter> logger)
   {
      this.logger.assign(logger);
   }

}