org.eclipse.osbp.xtext.table.common/src/org/eclipse/osbp/xtext/table/common/export/DeletingFileInputStream.java

/**
 * Copyright 2011-2019 Jonathan Nash and others
 * 
 * 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.
 * 
 *  Contributors:                                                      
 * 	   Jonathan Nash - initial implementation
 * 	   Compex Systemhaus GmbH - adaptions for OSBP
 */
package org.eclipse.osbp.xtext.table.common.export;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.Serializable;

/**
 * This input stream deletes the given file when the InputStream is closed; intended to be used with
 * temporary files.
 * 
 * Code obtained from: http://vaadin.com/forum/-/message_boards/view_message/159583
 * 
 */
class DeletingFileInputStream extends FileInputStream implements Serializable {

    /** The file. */
    protected File file = null;

    /**
     * Instantiates a new deleting file input stream.
     * 
     * @param file
     *            the file
     * @throws FileNotFoundException
     *             the file not found exception
     */
    public DeletingFileInputStream(final File file) throws FileNotFoundException {
        super(file);
        this.file = file;
    }

    /*
     * (non-Javadoc)
     * 
     * @see java.io.FileInputStream#close()
     */
    @Override
    public void close() throws IOException {
        super.close();
        file.delete();
    }
}