com.epam.ta.reportportal.ws.resolver.JsonViewSupportFactoryBean.java Source code

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Here is the source code for com.epam.ta.reportportal.ws.resolver.JsonViewSupportFactoryBean.java

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/*
 * Copyright 2016 EPAM Systems
 * 
 * 
 * This file is part of EPAM Report Portal.
 * https://github.com/reportportal/service-api
 * 
 * Report Portal is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Report Portal 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Report Portal.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.epam.ta.reportportal.ws.resolver;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
import org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor;

/**
 * Initializing bean for wrapping {@link HandlerMethodReturnValueHandler} with
 * JSON view decorators
 * 
 * @author Andrei Varabyeu
 * 
 */
public class JsonViewSupportFactoryBean implements InitializingBean {

    @Autowired
    private RequestMappingHandlerAdapter adapter;

    @Override
    public void afterPropertiesSet() throws Exception {
        List<HandlerMethodReturnValueHandler> handlers = adapter.getReturnValueHandlers();
        adapter.setReturnValueHandlers(decorateHandlers(handlers));
    }

    private List<HandlerMethodReturnValueHandler> decorateHandlers(List<HandlerMethodReturnValueHandler> handlers) {

        /*
         * We have to create new collection here, because initial list is
         * unmodifiable
         */
        List<HandlerMethodReturnValueHandler> updatedHandlers = new ArrayList<>(handlers.size());
        for (HandlerMethodReturnValueHandler handler : handlers) {
            if (handler instanceof RequestResponseBodyMethodProcessor) {
                updatedHandlers.add(new JacksonViewReturnValueHandler(handler));
            } else {
                updatedHandlers.add(handler);
            }
        }
        return Collections.unmodifiableList(updatedHandlers);
    }
}