com.mobileman.kuravis.core.util.ErrorUtils.java Source code

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Here is the source code for com.mobileman.kuravis.core.util.ErrorUtils.java

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/*******************************************************************************
 * Copyright 2015 MobileMan GmbH
 * www.mobileman.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.mobileman.kuravis.core.util;

import org.springframework.http.HttpStatus;
import org.springframework.util.StringUtils;

import com.mobileman.kuravis.core.exception.ErrorCodes;
import com.mobileman.kuravis.core.exception.HealtPlatformException;
import com.mobileman.kuravis.core.domain.util.EntityUtils;
import com.mongodb.BasicDBObjectBuilder;
import com.mongodb.DBObject;
import com.mongodb.WriteResult;

/**
 * @author MobileMan GmbH
 *
 */
public class ErrorUtils {

    /**
     * 
     */
    public static final String ERROR = "error";

    /**
     * 
     */
    public static final String ATTR_MESSAGE = "message";

    /**
     * 
     */
    public static final String ATTR_CODE = "code";

    /**
     * 
     */
    public static final String ATTR_RESULT = "result";

    /**
     * 
     */
    public static final String ATTR_STATUS = "status";

    /**
     * 
     */
    public static final String OK = "ok";

    /**
     * @param result
     * @return if given dataholder contains error result
     */
    public static boolean isError(DBObject result) {
        return result != null && result.get(EntityUtils.ATTR_RESULT) != null
                && result.get(EntityUtils.ATTR_RESULT).equals(ErrorUtils.ERROR);
    }

    /**
     * @param code
     * @return json error result with given message
     */
    public static DBObject error(ErrorCodes code) {
        return error(null, code);
    }

    /**
     * @param message
     * @return json error result with given message
     */
    public static DBObject error(String message) {
        return error(message, ErrorCodes.INTERNAL_ERROR);
    }

    /**
     * @param message error message
     * @param code 
     * @return json error result with given message
     */
    public static DBObject error(String message, ErrorCodes code) {
        return BasicDBObjectBuilder.start().add(EntityUtils.ATTR_RESULT, ErrorUtils.ERROR)
                .add(ATTR_MESSAGE, message).add(ATTR_CODE, code.getValue()).add(ATTR_STATUS, code.getCode()).get();
    }

    /**
     * @return json success result
     */
    public static DBObject success() {
        return success(HttpStatus.OK);
    }

    /**
     * @param result
     * @return HttpStatus from result
     */
    public static HttpStatus getStatus(DBObject result) {
        if (result == null) {
            return HttpStatus.INTERNAL_SERVER_ERROR;
        }

        if (result.get(ATTR_STATUS) == null) {
            return HttpStatus.OK;
        }

        return HttpStatus.valueOf((int) result.get(ATTR_STATUS));
    }

    /**
     * @param e
     * @return DBObject
     */
    public static DBObject createErrorResult(Exception e) {
        return BasicDBObjectBuilder.start().add(EntityUtils.ATTR_RESULT, ErrorUtils.ERROR)
                .add(ATTR_MESSAGE, e.getMessage()).add(ATTR_CODE, ErrorCodes.INTERNAL_ERROR.getValue())
                .add(ATTR_STATUS, ErrorCodes.INTERNAL_ERROR.getCode()).get();
    }

    /**
     * @param result
     * @return ATTR_MESSAGE content
     */
    public static String getMessage(DBObject result) {
        return (String) result.get(ATTR_MESSAGE);
    }

    /**
     * @param status
     * @return DBObject
     */
    public static DBObject success(HttpStatus status) {
        return BasicDBObjectBuilder.start().add(EntityUtils.ATTR_RESULT, ErrorCodes.OK.getValue())
                .add(ATTR_CODE, status.getReasonPhrase()).add(ATTR_STATUS, status.value()).get();
    }

    /**
     * @param result
     * @return INTERNAL_ERROR
     */
    public static DBObject error(WriteResult result) {
        return error(result.getError(), ErrorCodes.INTERNAL_ERROR);
    }

    /**
     * @param result
     * @return true if result has finished with error
     */
    public static boolean isError(WriteResult result) {
        return !StringUtils.isEmpty(result.getError());
    }

    /**
     * @param code
     * @return HealtPlatformException
     */
    public static HealtPlatformException exception(ErrorCodes code) {
        return new HealtPlatformException(error(code));
    }

    /**
     * @param message
     * @param code
     * @return HealtPlatformException
     */
    public static HealtPlatformException exception(String message, ErrorCodes code) {
        return new HealtPlatformException(error(message, code));
    }

    /**
     * @param message
     * @return HealtPlatformException
     */
    public static HealtPlatformException exception(String message) {
        return new HealtPlatformException(error(message));
    }

    /**
     * @param message
     * @param e 
     * @return HealtPlatformException
     */
    public static HealtPlatformException exception(String message, Throwable e) {
        return new HealtPlatformException(error(message), e);
    }

    /**
     * @param result
     * @return HealtPlatformException
     */
    public static HealtPlatformException exception(WriteResult result) {
        Integer code = (Integer) result.getField(ATTR_CODE);
        if (code.equals(new Integer(11000))) {
            throw new com.mongodb.MongoException.DuplicateKey(result.getLastError());
        }

        return new HealtPlatformException(error(result));
    }
}