org.openmrs.module.bahmniexports.example.domain.trade.internal.GeneratingTradeItemReader.java Source code

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Here is the source code for org.openmrs.module.bahmniexports.example.domain.trade.internal.GeneratingTradeItemReader.java

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/*
 * 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 org.openmrs.module.bahmniexports.example.domain.trade.internal;

import java.math.BigDecimal;

import org.springframework.batch.item.ItemReader;
import org.openmrs.module.bahmniexports.example.domain.trade.Trade;

/**
 * Generates configurable number of {@link Trade} items.
 * 
 * @author Robert Kasanicky
 */
public class GeneratingTradeItemReader implements ItemReader<Trade> {

    private int limit = 1;

    private int counter = 0;

    @Override
    public Trade read() throws Exception {
        if (counter < limit) {
            counter++;
            return new Trade("isin" + counter, counter, new BigDecimal(counter), "customer" + counter);
        }
        return null;
    }

    /**
     * @param limit number of items that will be generated
     * (null returned on consecutive calls).
     */
    public void setLimit(int limit) {
        this.limit = limit;
    }

    public int getCounter() {
        return counter;
    }

    public int getLimit() {
        return limit;
    }

    public void resetCounter() {
        this.counter = 0;
    }
}