/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.apache.pdfbox.examples; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import org.apache.pdfbox.cos.COSDocument; import org.apache.pdfbox.pdmodel.PDDocument; import org.apache.pdfbox.pdfwriter.COSWriter; /** * A simple class which has some methods used by all examples. * * @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a> * @version $Revision: 1.4 $ */ public abstract class AbstractExample { /** * Close the stream. * * @param stream The stream to close. * * @throws IOException If there is an error closing the stream. */ public void close( InputStream stream ) throws IOException { if( stream != null ) { stream.close(); } } /** * Close the stream. * * @param stream The stream to close. * * @throws IOException If there is an error closing the stream. */ public void close( OutputStream stream ) throws IOException { if( stream != null ) { stream.close(); } } /** * Close the document. * * @param doc The doc to close. * * @throws IOException If there is an error closing the document. */ public void close( COSDocument doc ) throws IOException { if( doc != null ) { doc.close(); } } /** * Close the document. * * @param doc The doc to close. * * @throws IOException If there is an error closing the document. */ public void close( PDDocument doc ) throws IOException { if( doc != null ) { doc.close(); } } /** * Close the writer. * * @param writer The writer to close. * * @throws IOException If there is an error closing the writer. */ public static void close( COSWriter writer ) throws IOException { if( writer != null ) { writer.close(); } } }