HtmlBodyWriter.java

/*
** Module   : HtmlBodyWriter.java
** Abstract : Implementation of the builtin class.
**
** Copyright (c) 2019-2023, Golden Code Development Corporation.
**
** -#- -I- --Date-- -------------------------------Description--------------------------------
** 001 IAS  20190923 First version.
** 002 MP   20200709 Complete methods with code just like legacy class
**     ME   20210205 Fix file extension check, clean-up.
** 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.filter.payload;

import static com.goldencode.p2j.util.BlockManager.externalProcedure;
import static com.goldencode.p2j.report.ReportConstants.*;
import static com.goldencode.p2j.util.BlockManager.function;
import static com.goldencode.p2j.util.BlockManager.internalProcedure;
import static com.goldencode.p2j.util.BlockManager.onBlockLevel;
import static com.goldencode.p2j.util.BlockManager.returnNormal;
import static com.goldencode.p2j.util.BlockManager.undoThrow;

import org.apache.commons.lang3.StringUtils;

import com.goldencode.p2j.oo.common.support.IcharacterHolder;
import com.goldencode.p2j.oo.common.support.IlongcharHolder;
import com.goldencode.p2j.oo.core.*;
import com.goldencode.p2j.oo.core.collections.IStringStringMap;
import com.goldencode.p2j.oo.io.FileInputStream;
import com.goldencode.p2j.oo.lang.*;
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.*;

/**
 * 
 * Write text/html body.
 *
 */
@LegacyResource(resource = "OpenEdge.Net.HTTP.Filter.Payload.HtmlBodyWriter")
@LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
public class HtmlBodyWriter 
extends MessageWriter
{
   /**
    * Execute method
    */
   @LegacySignature(type = Type.EXECUTE)
   public void __net_http_filter_payload_HtmlBodyWriter_execute__()
   {
      onBlockLevel(Condition.ERROR, Action.THROW);
   }

   /**
    * Constructor
    */
   @LegacySignature(type = Type.CONSTRUCTOR)
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   public void __net_http_filter_payload_HtmlBodyWriter_constructor__()
   {
      internalProcedure(this, "__net_http_filter_payload_HtmlBodyWriter_constructor__", 
            new Block((Body) () -> 
      {
         __net_http_filter_payload_MessageWriter_constructor__(
               ObjectOps.getLegacyClass(ByteBucket.class)
         );
      }));
   }

   /**
    * Opens the writer for output.
    */
   @LegacySignature(type = Type.METHOD, name = "Open")
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   @Override
   public void open() 
   {
      internalProcedure(this, "Open", new Block((Body) () -> 
      {
         if (!entity._isValid())
         {
            entity.assign(ByteBucket.instance());
         }
         super.open();
      }));
   }

   /**
    * Write data to/from the entity
    * 
    * @param _poData data to be written
    * 
    * @return number of bytes written
    */
   @LegacySignature(returns = "INT64", type = Type.METHOD, name = "Write", parameters = 
   {
      @LegacyParameter(name = "poData", type = "OBJECT",
            qualified = "progress.lang.object", mode = "INPUT")
   })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   @Override
   public int64 write(final object<? extends _BaseObject_> _poData)
   {
      object<? extends _BaseObject_> poData = TypeFactory.initInput(_poData);
      return function(this, "Write", int64.class, new Block((Body) () -> 
      {
         if (!poData._isValid())
         {
            returnNormal(new int64(0));
         }
         
         if (ObjectOps.typeOf(poData, IlongcharHolder.class).booleanValue())
         {
            returnNormal(write(ObjectOps.cast(poData, IlongcharHolder.class).ref().getValue()));
         }
         else if (ObjectOps.typeOf(poData, IcharacterHolder.class).booleanValue())
         {
            returnNormal(write(new longchar(ObjectOps.cast(poData, IcharacterHolder.class).ref().getValue())));
         }
         else if (ObjectOps.typeOf(poData, FileInputStream.class).booleanValue())
         {
            object<? extends FileInputStream> fileStr = ObjectOps.cast(poData, FileInputStream.class);
            
            String[] fileNameParts = StringUtils.split(fileStr.ref().getFileName().getValue(), ".");
            String fileExt = fileNameParts[fileNameParts.length - 1];
            
            if (fileExt.equalsIgnoreCase("html") || fileExt.equalsIgnoreCase("htm"))
            {
               returnNormal(writeFileStream(fileStr));
            }
            else
            {
               String msg = String.format("Unsupported file extension .%s for HTML", fileExt);
               undoThrow(AppError.newInstance(msg, 0));
            }
         }
            
         unsupported(poData);
      }));
   }
   
   @LegacySignature(returns = "INT64", type = Type.METHOD, name = "Write", parameters = 
   {
      @LegacyParameter(name = "poData", type = "LONGCHAR", mode = "INPUT")
   })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   @Override
   public int64 write(final longchar _pcData)
   {
      longchar pcData = TypeFactory.initInput(_pcData);
      return function(this, "Write", int64.class, new Block((Body) () -> 
      {
         bucket().putString(pcData);
         returnNormal(new int64(TextOps.byteLength(pcData)));
      }));
   }
   
   @LegacySignature(returns = "INT64", type = Type.METHOD, name = "Write", parameters = 
   {
      @LegacyParameter(name = "poData", type = "MEMPTR", mode = "INPUT")
   })
   @LegacyResourceSupport(supportLvl = CVT_LVL_FULL|RT_LVL_FULL)
   @Override
   public int64 write(final memptr _pData)
   {
      memptr pData = TypeFactory.initInput(_pData);
      return function(this, "Write", int64.class, new Block((Body) () -> 
      {
         bucket().putBytes(pData.getPointerValue(), pData.length());
         returnNormal(pData.length());
      }));
   }
}