001/*
002 * Copyright 2015-2018 Ping Identity Corporation
003 *
004 * This program is free software; you can redistribute it and/or modify
005 * it under the terms of the GNU General Public License (GPLv2 only)
006 * or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
007 * as published by the Free Software Foundation.
008 *
009 * This program is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
012 * GNU General Public License for more details.
013 *
014 * You should have received a copy of the GNU General Public License
015 * along with this program; if not, see <http://www.gnu.org/licenses>.
016 */
017
018package com.unboundid.scim2.server.providers;
019
020import com.fasterxml.jackson.core.JsonParseException;
021import com.fasterxml.jackson.core.JsonProcessingException;
022import com.fasterxml.jackson.databind.JsonMappingException;
023import com.unboundid.scim2.common.exceptions.BadRequestException;
024import com.unboundid.scim2.common.exceptions.ScimException;
025import com.unboundid.scim2.common.exceptions.ServerErrorException;
026import com.unboundid.scim2.common.messages.ErrorResponse;
027import com.unboundid.scim2.server.utils.ServerUtils;
028
029import javax.ws.rs.core.Context;
030import javax.ws.rs.core.HttpHeaders;
031import javax.ws.rs.core.Request;
032import javax.ws.rs.core.Response;
033import javax.ws.rs.ext.ExceptionMapper;
034import javax.ws.rs.ext.Provider;
035
036/**
037 * A JAX-RS ExceptionMapper for to convert Jackson JsonProcessingException to
038 * SCIM ErrorResponses.
039 */
040@Provider
041public class JsonProcessingExceptionMapper implements
042    ExceptionMapper<JsonProcessingException>
043{
044  @Context
045  private Request request;
046  @Context
047  private HttpHeaders headers;
048
049  /**
050   * {@inheritDoc}
051   */
052  public Response toResponse(final JsonProcessingException exception)
053  {
054    ErrorResponse errorResponse;
055    if((exception instanceof JsonParseException) ||
056        (exception instanceof JsonMappingException))
057    {
058      StringBuilder builder = new StringBuilder();
059      builder.append("Unable to parse request: ");
060      builder.append(exception.getOriginalMessage());
061      if(exception.getLocation() != null)
062      {
063        builder.append(" at line: ");
064        builder.append(exception.getLocation().getLineNr());
065        builder.append(", column: ");
066        builder.append(exception.getLocation().getColumnNr());
067      }
068      errorResponse =
069          BadRequestException.invalidSyntax(builder.toString()).getScimError();
070    }
071    else
072    {
073      if(exception.getCause() != null &&
074          exception.getCause() instanceof ScimException)
075      {
076        errorResponse = ((ScimException) exception.getCause()).getScimError();
077      }
078      else
079      {
080        errorResponse =
081            new ServerErrorException(exception.getMessage()).getScimError();
082      }
083    }
084
085    return ServerUtils.setAcceptableType(
086        Response.status(errorResponse.getStatus()).entity(errorResponse),
087        headers.getAcceptableMediaTypes()).build();
088  }
089}