Write the entire contents of the supplied string to the given writer. This method always flushes and closes the writer when finished. : Writer « File Input Output « Java

1. Java
2. File Input Output
3. Writer

Write the entire contents of the supplied string to the given writer. This method always flushes and closes the writer when finished.

   
/*
 * 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;
              }
          }
      }
  }
}

   
    
    
  

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