/*
 * 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.springframework.batch.sample.common;

import org.apache.commons.io.FilenameUtils;
import org.springframework.batch.core.StepExecution;
import org.springframework.batch.core.annotation.BeforeStep;
import org.springframework.batch.item.ExecutionContext;

/**
 * @author Dave Syer
 * 
 */
public class OutputFileListener {

	private String outputKeyName = "outputFile";

	private String inputKeyName = "fileName";

	private String path = "file:./build/output/";
	
	public void setPath(String path) {
		this.path = path;
	}

	public void setOutputKeyName(String outputKeyName) {
		this.outputKeyName = outputKeyName;
	}

	public void setInputKeyName(String inputKeyName) {
		this.inputKeyName = inputKeyName;
	}

	@BeforeStep
	public void createOutputNameFromInput(StepExecution stepExecution) {
		ExecutionContext executionContext = stepExecution.getExecutionContext();
		String inputName = stepExecution.getStepName().replace(":", "-");
		if (executionContext.containsKey(inputKeyName)) {
			inputName = executionContext.getString(inputKeyName);
		}
		if (!executionContext.containsKey(outputKeyName)) {
			executionContext.putString(outputKeyName, path + FilenameUtils.getBaseName(inputName)
					+ ".csv");
		}
	}

}