/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, Red Hat, Inc. and individual contributors
 * 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.
 */
package org.richfaces.request;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;

import com.google.common.base.Strings;

/**
 * @author Nick Belaevski
 *
 */
abstract class FileUploadResource implements FileUploadParam {
    private String name;
    private String uploadLocation;

    public FileUploadResource(String name, String uploadLocation) {
        super();

        this.name = name;
        this.uploadLocation = uploadLocation;
    }

    protected String getUploadLocation() {
        return uploadLocation;
    }

    protected File getOutputFile(String name) {
        if (Strings.isNullOrEmpty(name)) {
            return new File(uploadLocation);
        }

        return new File(uploadLocation, name);
    }

    public abstract InputStream getInputStream() throws IOException;

    public abstract long getSize();

    public abstract void write(String fileName) throws IOException;

    public abstract void delete() throws IOException;

    public String getName() {
        return name;
    }

    public boolean isFileParam() {
        return true;
    }

    public String getValue() {
        return null;
    }

    public FileUploadResource getResource() {
        return this;
    }
}
