JsonExamplesForMethod.java

/**
 * Copyright © 2006-2016 Web Cohesion (info@webcohesion.com)
 *
 * 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.webcohesion.enunciate.modules.swagger;

import com.webcohesion.enunciate.api.datatype.BaseType;
import com.webcohesion.enunciate.api.datatype.DataType;
import com.webcohesion.enunciate.api.datatype.DataTypeReference;
import com.webcohesion.enunciate.api.datatype.Example;
import com.webcohesion.enunciate.api.resources.Entity;
import com.webcohesion.enunciate.api.resources.MediaTypeDescriptor;
import freemarker.ext.beans.BeansWrapperBuilder;
import freemarker.template.Configuration;
import freemarker.template.TemplateMethodModelEx;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;

import java.util.HashMap;
import java.util.List;

/**
 * Template method used to determine the objective-c "simple name" of an accessor.
 *
 * @author Ryan Heaton
 */
public class JsonExamplesForMethod implements TemplateMethodModelEx {

  public Object exec(List list) throws TemplateModelException {
    if (list.size() < 1) {
      throw new TemplateModelException("The uniqueMediaTypesFor method must have a parameter.");
    }

    TemplateModel from = (TemplateModel) list.get(0);
    Object unwrapped = new BeansWrapperBuilder(Configuration.DEFAULT_INCOMPATIBLE_IMPROVEMENTS).build().unwrap(from);
    HashMap<String, String> uniqueMediaTypes = new HashMap<String, String>();
    if (unwrapped instanceof Entity) {
      Entity entity = (Entity) unwrapped;
      List<? extends MediaTypeDescriptor> mts = entity.getMediaTypes();
      if (mts != null) {
        for (MediaTypeDescriptor mt : mts) {
          if (mt.getMediaType().endsWith("json")) {
            DataTypeReference dataType = mt.getDataType();
            if (dataType != null && dataType.getBaseType() == BaseType.object) {
              DataType value = dataType.getValue();
              if (value != null) {
                Example example = value.getExample();
                if (example != null) {
                  String body = example.getBody();
                  if (body != null) {
                    uniqueMediaTypes.put(mt.getMediaType(), body);
                  }
                }
              }
            }
          }
        }
      }
    }
    return uniqueMediaTypes;
  }
}