/* * Copyright (c) 1996, 1998, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *//*- * netdoc urls point either into the local filesystem or externally * through an http url, with network documents being preferred. Useful for * FAQs & other documents which are likely to be changing over time at the * central site, and where the user will want the most recent edition. * * @author Steven B. Byrne */package sun.net.www.protocol.netdoc;import java.net.URL;import java.net.URLConnection;import java.net.MalformedURLException;import java.net.URLStreamHandler;import java.io.InputStream;import java.io.IOException;public class Handler extends URLStreamHandler { static URL base; /* * Attempt to find a load the given url using the default (network) * documentation location. If that fails, use the local copy */ public synchronized URLConnection openConnection(URL u) throws IOException { URLConnection uc = null; URL ru; Boolean tmp = java.security.AccessController.doPrivileged( new sun.security.action.GetBooleanAction("newdoc.localonly")); boolean localonly = tmp.booleanValue(); String docurl = java.security.AccessController.doPrivileged( new sun.security.action.GetPropertyAction("doc.url")); String file = u.getFile(); if (!localonly) { try { if (base == null) { base = new URL(docurl); } ru = new URL(base, file); } catch (MalformedURLException e) { ru = null; } if (ru != null) { uc = ru.openConnection(); } } if (uc == null) { try { ru = new URL("file", "~", file); uc = ru.openConnection(); InputStream is = uc.getInputStream(); // Check for success. } catch (MalformedURLException e) { uc = null; } catch (IOException e) { uc = null; } } if (uc == null) { throw new IOException("Can't find file for URL: " +u.toExternalForm()); } return uc; }}
/*
* Copyright (c) 1996, 1998, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*-
* netdoc urls point either into the local filesystem or externally
* through an http url, with network documents being preferred. Useful for
* FAQs & other documents which are likely to be changing over time at the
* central site, and where the user will want the most recent edition.
*
* @author Steven B. Byrne
*/
package sun.net.www.protocol.netdoc;
import java.net.URL;
import java.net.URLConnection;
import java.net.MalformedURLException;
import java.net.URLStreamHandler;
import java.io.InputStream;
import java.io.IOException;
public class Handler extends URLStreamHandler {
static URL base;
/*
* Attempt to find a load the given url using the default (network)
* documentation location. If that fails, use the local copy
*/
public synchronized URLConnection openConnection(URL u)
throws IOException
{
URLConnection uc = null;
URL ru;
Boolean tmp = java.security.AccessController.doPrivileged(
new sun.security.action.GetBooleanAction("newdoc.localonly"));
boolean localonly = tmp.booleanValue();
String docurl = java.security.AccessController.doPrivileged(
new sun.security.action.GetPropertyAction("doc.url"));
String file = u.getFile();
if (!localonly) {
try {
if (base == null) {
base = new URL(docurl);
}
ru = new URL(base, file);
} catch (MalformedURLException e) {
ru = null;
}
if (ru != null) {
uc = ru.openConnection();
}
}
if (uc == null) {
try {
ru = new URL("file", "~", file);
uc = ru.openConnection();
InputStream is = uc.getInputStream(); // Check for success.
} catch (MalformedURLException e) {
uc = null;
} catch (IOException e) {
uc = null;
}
}
if (uc == null) {
throw new IOException("Can't find file for URL: "
+u.toExternalForm());
}
return uc;
}
}