Main.java Source code

Introduction

Here is the source code for Main.java

Source

/*
 * JBoss DNA (http://www.jboss.org/dna)
 * See the COPYRIGHT.txt file distributed with this work for information
 * regarding copyright ownership.  Some portions may be licensed
 * to Red Hat, Inc. under one or more contributor license agreements.
 * See the AUTHORS.txt file in the distribution for a full listing of 
 * individual contributors. 
 *
 * JBoss DNA is free software. Unless otherwise indicated, all code in JBoss DNA
 * is licensed to you 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.
 *
 * JBoss DNA 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.
 */
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;

/**
 * @author Randall Hauch
 */
public class Main {
    /**
     * Write the entire contents of the supplied string to the given writer. This method always flushes and closes the writer when
     * finished.
     * 
     * @param input the content to write to the writer; may be null
     * @param writer the writer to which the content is to be written
     * @throws IOException
     * @throws IllegalArgumentException if the writer is null
     */
    public static void write(Reader input, Writer writer) throws IOException {
        boolean error = false;
        try {
            if (input != null) {
                char[] buffer = new char[1024];
                try {
                    int numRead = 0;
                    while ((numRead = input.read(buffer)) > -1) {
                        writer.write(buffer, 0, numRead);
                    }
                } finally {
                    input.close();
                }
            }
        } catch (IOException e) {
            error = true; // this error should be thrown, even if there is an error flushing/closing writer
            throw e;
        } catch (RuntimeException e) {
            error = true; // this error should be thrown, even if there is an error flushing/closing writer
            throw e;
        } finally {
            try {
                writer.flush();
            } catch (IOException e) {
                if (!error)
                    throw e;
            } finally {
                try {
                    writer.close();
                } catch (IOException e) {
                    if (!error)
                        throw e;
                }
            }
        }
    }
}