content: /*
   * Copyright 2021-2022 Alibaba Group Holding Ltd.
   *
   *    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 com.aliyun.fastmodel.ide.open.extension.command;
  
  import java.io.ByteArrayOutputStream;
  
  import com.aliyun.fastmodel.core.tree.expr.Identifier;
  import com.aliyun.fastmodel.core.tree.statement.command.ExportSql;
  import com.aliyun.fastmodel.ide.spi.command.BaseIdeCommand;
  import com.aliyun.fastmodel.ide.spi.invoker.InvokeResult;
  import com.aliyun.fastmodel.transform.api.dialect.DialectMeta;
  import com.aliyun.fastmodel.transform.api.dialect.DialectName;
  import com.aliyun.fastmodel.transform.plantuml.diagram.DiagramGenerator;
  import org.springframework.stereotype.Component;
  
  /**
   * EngineTransformCommand
   *
   * @author panguanjing
   * @date 2021/10/3
   */
  @Component
  public class RenderPlantUmlIdeCommand extends BaseIdeCommand<byte[], ExportSql> {
  
      @Override
      public InvokeResult<byte[]> execute(ExportSql renderFml) {
          Identifier dialect = renderFml.getDialect();
          DialectName byCode = DialectName.getByCode(dialect.getValue());
          DialectMeta dialectMeta = DialectMeta.getByName(byCode);
          String result = getIdePlatform().getToolService().exportSql(renderFml.getFml().get(), dialectMeta);
          ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
          DiagramGenerator.exportPNG(result, outputStream);
          byte[] bytes = outputStream.toByteArray();
          return InvokeResult.success(bytes);
      }
  
      @Override
      public boolean isMatch(ExportSql baseStatement) {
          Identifier mode = baseStatement.getDialect();
          DialectName byCode = DialectName.getByCode(mode.getValue());
          return byCode == DialectName.PLANTUML;
      }
  }
  