接口作用

支持主线的excel、sql、db等类型外的数据集接入bi公共数据

接口内容

@API(level = CustomDatasetProvider.CURRENT_LEVEL)
public abstract class AbstractCustomDatasetProvider implements CustomDatasetProvider {

    @Override
    public int currentAPILevel() {
        return CustomDatasetProvider.CURRENT_LEVEL;
    }

    @Override
    public String mark4Provider() {
        return getClass().getName();
    }
}
 

接口接入

    <extra-core>
        <CustomDatasetProvider class="继承AbstractCustomDatasetProvider的子类路径"/>
    </extra-core>

提供给插件的抽象类

统筹接口功能抽象类

public abstract class AbstractCustomDatasetGenerator implements CustomDatasetGenerator, Serializable {

    @Override
    public boolean match(String name) {
        return CompareUtils.isEqual(name, getName());
    }
}

取数功能抽象类

• 不支持sql取数

  public abstract class AbstractDefaultDatasourceGenerator implements CustomDatasetDatasourceGenerator { @Override public final boolean isSupportedSql() { return false; } @Override public final RowIterator getRowIterator(List<String> jsonContexts, List<CustomDatasetContext> datasetContexts, String sql, List<ColumnInformation[]> columnInfos) { throw new UnsupportedOperationException("getRowIterator with sql not supported."); } @Override public final Dialect getDialect(String jsonContext, CustomDatasetContext datasetContext) { throw new UnsupportedOperationException("getDialect with sql not supported."); } // 子类继承时只需要实现不支持 SQL 相关方法 }

  
  

• 支持sql取数

  public abstract class AbstractSqlSupportedDatasourceGenerator implements CustomDatasetDatasourceGenerator { @Override public final boolean isSupportedSql() { return true; } @Override public final RowIterator getRowIterator(String jsonContext, CustomDatasetContext datasetContext, ColumnInformation[] columnInfos) { throw new UnsupportedOperationException("getRowIterator without sql not supported."); } // 子类继承时只需要实现 SQL 相关方法 }

  
  

前端页面

@Open
public interface CustomDatasetPageGenerator {

    /**
     * 获取图标
     */
    String getIcon(CustomDatasetContext datasetContext);

    /**
     * 获取html
     */
    String getEditPageHTML(CustomDatasetContext datasetContext);

    /**
     * 获取Component
     */
    AssembleComponent getComponent(CustomDatasetContext datasetContext);

}