com.opengamma.util.StringListFactoryBean.java Source code

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Here is the source code for com.opengamma.util.StringListFactoryBean.java

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/**
 * Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
 *
 * Please see distribution for license.
 */
package com.opengamma.util;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.List;

import org.apache.commons.io.FileUtils;

import com.opengamma.OpenGammaRuntimeException;

/**
 * Creates a list of strings from a file.
 */
public class StringListFactoryBean extends SingletonFactoryBean<List<String>> {

    /**
     * The file.
     */
    private File _file;

    /**
     * Gets the file
     * 
     * @return the file
     */
    public File getFile() {
        return _file;
    }

    /**
     * Sets the file.
     * 
     * @param file  the file
     */
    public void setFile(File file) {
        _file = file;
    }

    //-------------------------------------------------------------------------

    @Override
    protected List<String> createObject() {
        if (getFile() == null) {
            throw new IllegalArgumentException("file must be set");
        }
        try {
            return FileUtils.readLines(getFile());
        } catch (FileNotFoundException e) {
            throw new IllegalArgumentException("File not found: " + getFile(), e);
        } catch (IOException e) {
            throw new OpenGammaRuntimeException("Error while reading file: " + getFile(), e);
        }
    }

}