diff options
Diffstat (limited to 'libjava/gnu/java/net/protocol/file/Connection.java')
| -rw-r--r-- | libjava/gnu/java/net/protocol/file/Connection.java | 106 |
1 files changed, 73 insertions, 33 deletions
diff --git a/libjava/gnu/java/net/protocol/file/Connection.java b/libjava/gnu/java/net/protocol/file/Connection.java index 3bddd0ffe13..1df5c487c88 100644 --- a/libjava/gnu/java/net/protocol/file/Connection.java +++ b/libjava/gnu/java/net/protocol/file/Connection.java @@ -1,15 +1,45 @@ -// Connection.java - Implementation of URLConnection for file protocol. - -/* Copyright (C) 1999 Free Software Foundation - - This file is part of libgcj. - -This software is copyrighted work licensed under the terms of the -Libgcj License. Please consult the file "LIBGCJ_LICENSE" for -details. */ - +/* + FileURLConnection.java -- URLConnection class for "file" protocol + Copyright (C) 1998, 1999, 2003 Free Software Foundation, Inc. + + This file is part of GNU Classpath. + + GNU Classpath is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + GNU Classpath 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 + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with GNU Classpath; see the file COPYING. If not, write to the + Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. + + Linking this library statically or dynamically with other modules is + making a combined work based on this library. Thus, the terms and + conditions of the GNU General Public License cover the whole + combination. + + As a special exception, the copyright holders of this library give you + permission to link this library with independent modules to produce an + executable, regardless of the license terms of these independent + modules, and to copy and distribute the resulting executable under + terms of your choice, provided that you also meet, for each linked + independent module, the terms and conditions of the license of that + module. An independent module is a module which is not derived from + or based on this library. If you modify this library, you may extend + this exception to your version of the library, but you are not + obligated to do so. If you do not wish to do so, delete this + exception statement from your version. +*/ package gnu.java.net.protocol.file; +import java.net.URL; +import java.net.URLConnection; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; @@ -19,8 +49,6 @@ import java.io.InputStream; import java.io.IOException; import java.io.OutputStream; import java.net.ProtocolException; -import java.net.URL; -import java.net.URLConnection; import java.util.Map; import java.util.Vector; import java.util.Hashtable; @@ -30,14 +58,7 @@ import java.util.Enumeration; * @author Warren Levy <warrenl@cygnus.com> * @date April 13, 1999. */ - -/** - * Written using on-line Java Platform 1.2 API Specification, as well - * as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998). - * Status: Minimal subset of functionality. - */ - -class Connection extends URLConnection +public class Connection extends URLConnection { private Hashtable hdrHash = new Hashtable(); private Vector hdrVec = new Vector(); @@ -48,16 +69,18 @@ class Connection extends URLConnection public Connection(URL url) { - super(url); + super (url); } - - // Implementation of abstract method. + + /** + * "Connects" to the file by opening it. + */ public void connect() throws IOException { // Call is ignored if already connected. if (connected) return; - + // If not connected, then file needs to be openned. String fname = url.getFile(); fileIn = new File(fname); @@ -65,21 +88,37 @@ class Connection extends URLConnection inputStream = new BufferedInputStream(new FileInputStream(fileIn)); if (doOutput) outputStream = new BufferedOutputStream(new FileOutputStream(fileIn)); + connected = true; } - - public InputStream getInputStream() throws IOException + + /** + * Opens the file for reading and returns a stream for it. + * + * @return An InputStream for this connection. + * + * @exception IOException If an error occurs + */ + public InputStream getInputStream() + throws IOException { if (! doInput) throw new ProtocolException("Can't open InputStream if doInput is false"); if (!connected) connect(); - + return inputStream; } - // Override default method in URLConnection. - public OutputStream getOutputStream() throws IOException + /** + * Opens the file for writing and returns a stream for it. + * + * @return An OutputStream for this connection. + * + * @exception IOException If an error occurs. + */ + public OutputStream getOutputStream() + throws IOException { if (! doOutput) throw new @@ -87,7 +126,7 @@ class Connection extends URLConnection if (!connected) connect(); - + return outputStream; } @@ -98,7 +137,7 @@ class Connection extends URLConnection { getHeaders(); } - catch (IOException x) + catch (IOException e) { return null; } @@ -112,7 +151,7 @@ class Connection extends URLConnection { getHeaders(); } - catch (IOException x) + catch (IOException e) { return null; } @@ -198,4 +237,5 @@ class Connection extends URLConnection String key = getKey(line); hdrHash.put(key.toLowerCase(), Long.toString(len)); } -} + +} // class FileURLConnection |
