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/* FileURLConnection.java -- URLConnection class for "file" protocol |
/* |
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Copyright (C) 1998 Free Software Foundation, Inc. |
FileURLConnection.java -- URLConnection class for "file" protocol |
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Copyright (C) 1998 Free Software Foundation, Inc. |
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This file is part of GNU Classpath. |
This file is part of GNU Classpath. |
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GNU Classpath is free software; you can redistribute it and/or modify |
GNU Classpath is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2, or (at your option) |
the Free Software Foundation; either version 2, or (at your option) |
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any later version. |
any later version. |
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GNU Classpath is distributed in the hope that it will be useful, but |
GNU Classpath is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
General Public License for more details. |
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You should have received a copy of the GNU General Public License |
You should have received a copy of the GNU General Public License |
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along with GNU Classpath; see the file COPYING. If not, write to the |
along with GNU Classpath; see the file COPYING. If not, write to the |
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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02111-1307 USA. |
02111-1307 USA. |
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Linking this library statically or dynamically with other modules is |
Linking this library statically or dynamically with other modules is |
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making a combined work based on this library. Thus, the terms and |
making a combined work based on this library. Thus, the terms and |
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conditions of the GNU General Public License cover the whole |
conditions of the GNU General Public License cover the whole |
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combination. |
combination. |
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As a special exception, the copyright holders of this library give you |
As a special exception, the copyright holders of this library give you |
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permission to link this library with independent modules to produce an |
permission to link this library with independent modules to produce an |
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executable, regardless of the license terms of these independent |
executable, regardless of the license terms of these independent |
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modules, and to copy and distribute the resulting executable under |
modules, and to copy and distribute the resulting executable under |
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terms of your choice, provided that you also meet, for each linked |
terms of your choice, provided that you also meet, for each linked |
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independent module, the terms and conditions of the license of that |
independent module, the terms and conditions of the license of that |
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module. An independent module is a module which is not derived from |
module. An independent module is a module which is not derived from |
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or based on this library. If you modify this library, you may extend |
or based on this library. If you modify this library, you may extend |
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this exception to your version of the library, but you are not |
this exception to your version of the library, but you are not |
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obligated to do so. If you do not wish to do so, delete this |
obligated to do so. If you do not wish to do so, delete this |
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exception statement from your version. */ |
exception statement from your version. |
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*/ |
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package gnu.java.net.protocol.file; |
package gnu.java.net.protocol.file; |
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/** |
/** |
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* This subclass of java.net.URLConnection models a URLConnection via |
* This subclass of java.net.URLConnection models a URLConnection via |
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* the "file" protocol. |
* the "file" protocol. |
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public class FileURLConnection extends java.net.URLConnection |
public class FileURLConnection extends java.net.URLConnection |
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{ |
{ |
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/* |
/** |
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* Instance Variables |
* This is a File object for this connection |
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*/ |
*/ |
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private java.io.File file; |
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/** |
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* This is a File object for this connection |
/** |
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*/ |
* InputStream if we are reading from the file |
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private java.io.File file; |
*/ |
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private java.io.FileInputStream in_stream; |
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/** |
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* InputStream if we are reading from the file |
/** |
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*/ |
* OutputStream if we are writing to the file |
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private java.io.FileInputStream in_stream; |
*/ |
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private java.io.FileOutputStream out_stream; |
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/** |
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* OutputStream if we are writing to the file |
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*/ |
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private java.io.FileOutputStream out_stream; |
/** |
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* Calls superclass constructor to initialize. |
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/*************************************************************************/ |
*/ |
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protected FileURLConnection (java.net.URL url) |
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/* |
{ |
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* Constructors |
super(url); |
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*/ |
/* Set up some variables */ |
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doOutput = false; |
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/** |
} |
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* Calls superclass constructor to initialize |
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*/ |
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protected |
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FileURLConnection(java.net.URL url) |
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{ |
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super(url); |
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/* Set up some variables */ |
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doOutput = false; |
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} |
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/*************************************************************************/ |
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/* |
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* Instance Methods |
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*/ |
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/** |
/** |
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* "Connects" to the file by opening it. |
* "Connects" to the file by opening it. |
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*/ |
*/ |
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public void |
public void connect () |
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connect() throws java.io.IOException |
throws java.io.IOException |
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if (!connected) |
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{ |
{ |
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file = new java.io.File(getURL().getFile()); |
file = new java.io.File(getURL().getFile()); |
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connected = true; |
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} |
} |
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} |
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/*************************************************************************/ |
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/** |
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* Opens the file for reading and returns a stream for it. |
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* |
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* @return An InputStream for this connection. |
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* |
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* @exception IOException If an error occurs |
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*/ |
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public java.io.InputStream |
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getInputStream() throws java.io.IOException |
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{ |
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if (!connected) |
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connect(); |
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in_stream = new java.io.FileInputStream(file); |
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return(in_stream); |
/** |
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} |
* Opens the file for reading and returns a stream for it. |
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* |
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/*************************************************************************/ |
* @return An InputStream for this connection. |
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* |
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/** |
* @exception IOException If an error occurs |
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* Opens the file for writing and returns a stream for it. |
*/ |
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* |
public java.io.InputStream getInputStream () |
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* @return An OutputStream for this connection. |
throws java.io.IOException |
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* |
{ |
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* @exception IOException If an error occurs. |
if (!connected) |
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*/ |
connect(); |
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public java.io.OutputStream |
in_stream = new java.io.FileInputStream(file); |
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getOutputStream() throws java.io.IOException |
return(in_stream); |
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{ |
} |
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if (!connected) |
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connect(); |
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out_stream = new java.io.FileOutputStream(file); |
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return(out_stream); |
/** |
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} |
* Opens the file for writing and returns a stream for it. |
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* |
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* @return An OutputStream for this connection. |
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* |
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* @exception IOException If an error occurs. |
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*/ |
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public java.io.OutputStream getOutputStream () |
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throws java.io.IOException |
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{ |
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if (!connected) |
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connect(); |
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out_stream = new java.io.FileOutputStream(file); |
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return(out_stream); |
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} |
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} // class FileURLConnection |
} // class FileURLConnection |
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