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/* Copyright 2008 Aaron Porter
 *
 * 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 net.sourceforge.stripes.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Resolution for sending HTTP error messages back to the client. errorCode is
 * the HTTP status code to be sent. errorMessage is a descriptive message.
 *
 * @author Aaron Porter
 * @since Stripes 1.5
 */
public class ErrorResolution implements Resolution {

    private int errorCode;
    private String errorMessage;

    /**
     * Sends an error response to the client using the specified status code and
     * clears the buffer.
     *
     * @param errorCode the HTTP status code
     */
    public ErrorResolution(int errorCode) {
        this.errorCode = errorCode;
    }

    /**
     * Sends an error response to the client using the specified status code and
     * message and clears the buffer.
     *
     * @param errorCode the HTTP status code
     * @param errorMessage a descriptive message
     */
    public ErrorResolution(int errorCode, String errorMessage) {
        this.errorCode = errorCode;
        this.errorMessage = errorMessage;
    }

    public void execute(HttpServletRequest request, HttpServletResponse response) throws Exception {
        if (errorMessage != null) {
            response.sendError(errorCode, errorMessage);
        } else {
            response.sendError(errorCode);
        }
    }

    /**
     * Accessor for the HTTP status code.
     * 
     * @return the HTTP status code associated with this error resolution.
     */
    public int getErrorCode() {
        return errorCode;
    }

    /**
     * Setter for the HTTP status code.
     * 
     * @param errorCode - The HTTP status code associated with this resolution.
     */
    public void setErrorCode(int errorCode) {
        this.errorCode = errorCode;
    }

    /**
     * Accessor for the descriptive error message.
     * 
     * @return Descriptive error message associated with this error resolution.
     */
    public String getErrorMessage() {
        return errorMessage;
    }

    /**
     * Setter for the descriptive error message.
     * 
     * @param errorMessage Descriptive error message for this resolution.
     */
    public void setErrorMessage(String errorMessage) {
        this.errorMessage = errorMessage;
    }
}




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