com.organization.projectname.exception.ErrorRestController.java Source code

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Here is the source code for com.organization.projectname.exception.ErrorRestController.java

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/*
 * The MIT License
 *
 * Copyright 2017 Muhamad Ridwan - muhamadridwan.id.
 *
 * 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.organization.projectname.exception;

import io.jsonwebtoken.lang.Assert;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.web.ErrorAttributes;
import org.springframework.boot.autoconfigure.web.ErrorController;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.ServletRequestAttributes;

/**
 *
 * @author Muhamad Ridwan <me@muhamadridwan.id>
 * url : http://stackoverflow.com/questions/25356781/spring-boot-remove-whitelabel-error-page
 */
@RestController
@RequestMapping("/error")
public class ErrorRestController implements ErrorController {

    private final ErrorAttributes errorAttributes;

    @Autowired
    public ErrorRestController(ErrorAttributes errorAttributes) {
        Assert.notNull(errorAttributes, "ErrorAttributes must not be null");
        this.errorAttributes = errorAttributes;
    }

    @Override
    public String getErrorPath() {
        return "/error";
    }

    @RequestMapping
    public Map<String, Object> error(HttpServletRequest aRequest) {
        Map<String, Object> body = getErrorAttributes(aRequest, getTraceParameter(aRequest));
        String trace = (String) body.get("trace");
        if (trace != null) {
            String[] lines = trace.split("\n\t");
            body.put("trace", lines);
        }
        return body;
    }

    private boolean getTraceParameter(HttpServletRequest request) {
        String parameter = request.getParameter("trace");
        if (parameter == null) {
            return false;
        }
        return !"false".equals(parameter.toLowerCase());
    }

    private Map<String, Object> getErrorAttributes(HttpServletRequest aRequest, boolean includeStackTrace) {
        RequestAttributes requestAttributes = new ServletRequestAttributes(aRequest);
        return errorAttributes.getErrorAttributes(requestAttributes, includeStackTrace);
    }
}