lcn.module.batch.web.guide.service.TradeProcessor.java Source code

Introduction

Here is the source code for lcn.module.batch.web.guide.service.TradeProcessor.java

Source

/*
 * Copyright 2006-2007 the original author or authors.
 *
 * 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 lcn.module.batch.web.guide.service;

import lcn.module.batch.web.guide.model.Trade;

import org.springframework.batch.item.ItemProcessor;
import org.springframework.batch.item.validator.ValidationException;

/**
 * TradeProcessor
 * 
 * @author 
 * @since 2012. 07.25
 * @version 1.0
 * @see <pre>
 *      ?(Modification Information)
 *   
 *   ?      ?           
 *  ------- -------- ---------------------------
 *  2012. 07.25        ?
 *  </pre>
 */

public class TradeProcessor implements ItemProcessor<Trade, Trade> {

    private int failure = -1;

    private int index = 0;

    private Trade failedItem = null;

    /**
     * Public setter for the the index on which failure should occur.
     * 
     * @param failure the failure to set
     */
    public void setValidationFailure(int failure) {
        this.failure = failure;
    }

    public Trade process(Trade item) throws Exception {
        if ((failedItem == null && index++ == failure) || (failedItem != null && failedItem.equals(item))) {
            failedItem = item;
            throw new ValidationException("Some bad data for " + failedItem);
        }
        return item;
    }
}