com.appslandia.plum.base.ActionInvoker Maven / Gradle / Ivy

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// The MIT License (MIT)
// Copyright © 2015 AppsLandia. All rights reserved.

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package com.appslandia.plum.base;

import java.lang.reflect.InvocationTargetException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;

import com.appslandia.common.base.Out;
import com.appslandia.common.converters.Converter;
import com.appslandia.common.converters.ConverterProvider;
import com.appslandia.common.json.JsonProcessor;
import com.appslandia.common.utils.Asserts;
import com.appslandia.common.utils.ExceptionUtils;
import com.appslandia.common.utils.StringUtils;
import com.appslandia.plum.utils.ServletUtils;

import jakarta.enterprise.context.ApplicationScoped;
import jakarta.inject.Inject;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.validation.ConstraintViolation;
import jakarta.validation.ConstraintViolationException;
import jakarta.validation.ElementKind;
import jakarta.validation.Path;

/**
 *
 * @author Loc Ha
 *
 */
@ApplicationScoped
public class ActionInvoker {

  @Inject
  protected ConverterProvider converterProvider;

  @Inject
  protected ModelBinder modelBinder;

  @Inject
  protected JsonProcessor jsonProcessor;

  public Object invokeAction(HttpServletRequest request, HttpServletResponse response, RequestContext requestContext,
      Object controller) throws Exception {
    // actionArgs
    List paramDescs = requestContext.getActionDesc().getParamDescs();
    Object[] actionArgs = new Object[paramDescs.size()];

    for (int index = 0; index < actionArgs.length; index++) {
      ParamDesc paramDesc = paramDescs.get(index);

      if (paramDesc.getParameter().getType() == HttpServletRequest.class) {
        actionArgs[index] = request;
        continue;
      }
      if (paramDesc.getParameter().getType() == HttpServletResponse.class) {
        actionArgs[index] = response;
        continue;
      }
      if (paramDesc.getParameter().getType() == RequestWrapper.class) {
        actionArgs[index] = (RequestWrapper) request;
        continue;
      }
      if (paramDesc.getParameter().getType() == RequestContext.class) {
        actionArgs[index] = requestContext;
        continue;
      }
      if (paramDesc.getParameter().getType() == ModelState.class) {
        actionArgs[index] = ServletUtils.getModelState(request);
        continue;
      }

      // @Model
      if (paramDesc.getModel() != null) {
        Object model = null;
        if (paramDesc.getModel().value() == Model.Source.PARAM) {
          model = paramDesc.getParameter().getType().getDeclaredConstructor().newInstance();

          String[] excludes = paramDesc.getModel().excludes();
          if (excludes.length == 0) {
            this.modelBinder.bindModel(request, model);
          } else {
            this.modelBinder.bindModel(request, model, p -> Arrays.stream(excludes).anyMatch(path -> p.equals(path)));
          }

        } else {
          model = this.jsonProcessor.read(request.getReader(), paramDesc.getParameter().getType());
          if (model != null) {
            this.modelBinder.validateModel(model, ServletUtils.getModelState(request), requestContext.getResources());
          }
        }
        actionArgs[index] = model;
        continue;
      }

      // Converter
      Class valueType = ModelBinder.getValueType(paramDesc.getParameter());
      Converter