/*
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  * Copyright 2005, JBoss Inc., and individual contributors as indicated
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * This is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
  * published by the Free Software Foundation; either version 2.1 of
  * the License, or (at your option) any later version.
  *
  * This software is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this software; if not, write to the Free
  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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package org.jboss.tutorial.spring;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.core.io.Resource;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

/**
 * @author <a href="mailto:ales.justin@genera-lynx.com">Ales Justin</a>
 */
public class FileLineReader extends StaticWordsCreator implements InitializingBean {

    private Resource resource;
    protected List<String> words;

    public Resource getResource() {
        return resource;
    }

    public void setResource(Resource resource) {
        this.resource = resource;
    }

    public void afterPropertiesSet() throws Exception {
        if (getResource() == null) {
            throw new IllegalArgumentException("Resource must be set!");
        }
        BufferedReader reader = new BufferedReader(new InputStreamReader(getResource().getInputStream()));
        try {
            words = new ArrayList<String>();
            String line;
            while((line = reader.readLine()) != null) {
                words.add(line);
            }
        } finally {
            reader.close();
        }
    }

    protected String[] getArray() {
        return words.toArray(new String[words.size()]);
    }

}
