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URL.java: Removed.
2007-01-10 Gary Benson <gbenson@redhat.com> * java/net/URL.java: Removed. * sources.am, Makefile.in: Rebuilt. From-SVN: r120644
This commit is contained in:
parent
2326ba44e4
commit
143f796e57
@ -1,3 +1,8 @@
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2007-01-10 Gary Benson <gbenson@redhat.com>
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* java/net/URL.java: Removed.
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* sources.am, Makefile.in: Rebuilt.
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2007-01-10 Matthias Klose <doko@debian.org>
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* Makefile.am (install-exec-hook): Support $(DESTDIR).
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@ -4395,7 +4395,7 @@ classpath/java/net/SocketPermission.java \
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classpath/java/net/SocketTimeoutException.java \
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classpath/java/net/URI.java \
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classpath/java/net/URISyntaxException.java \
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java/net/URL.java \
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classpath/java/net/URL.java \
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java/net/URLClassLoader.java \
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classpath/java/net/URLConnection.java \
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classpath/java/net/URLDecoder.java \
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@ -34,6 +34,9 @@ public:
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URL(::java::lang::String *);
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URL(::java::net::URL *, ::java::lang::String *);
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URL(::java::net::URL *, ::java::lang::String *, ::java::net::URLStreamHandler *);
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private:
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URL(::java::net::URL *, ::java::lang::String *, ::java::net::URLStreamHandler *, jboolean);
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public:
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jboolean equals(::java::lang::Object *);
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::java::lang::Object * getContent();
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::java::lang::Object * getContent(JArray< ::java::lang::Class * > *);
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@ -1,974 +0,0 @@
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/* URL.java -- Uniform Resource Locator Class
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Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2005
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Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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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
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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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
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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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
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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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
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conditions of the GNU General Public License cover the whole
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combination.
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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
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executable, regardless of the license terms of these independent
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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
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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
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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
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.net;
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import gnu.java.net.URLParseError;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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import java.security.AccessController;
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import java.security.PrivilegedAction;
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import java.util.HashMap;
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import java.util.StringTokenizer;
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/*
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* Written using on-line Java Platform 1.2 API Specification, as well
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* as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998).
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* Status: Believed complete and correct.
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*/
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/**
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* This final class represents an Internet Uniform Resource Locator (URL).
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* For details on the syntax of URL's and what they can be used for,
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* refer to RFC 1738, available from <a
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* href="http://ds.internic.net/rfcs/rfc1738.txt">
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* http://ds.internic.net/rfcs/rfc1738.txt</a>
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* <p>
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* There are a great many protocols supported by URL's such as "http",
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* "ftp", and "file". This object can handle any arbitrary URL for which
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* a URLStreamHandler object can be written. Default protocol handlers
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* are provided for the "http" and "ftp" protocols. Additional protocols
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* handler implementations may be provided in the future. In any case,
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* an application or applet can install its own protocol handlers that
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* can be "chained" with other protocol hanlders in the system to extend
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* the base functionality provided with this class. (Note, however, that
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* unsigned applets cannot access properties by default or install their
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* own protocol handlers).
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* <p>
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* This chaining is done via the system property java.protocol.handler.pkgs
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* If this property is set, it is assumed to be a "|" separated list of
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* package names in which to attempt locating protocol handlers. The
|
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* protocol handler is searched for by appending the string
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* ".<protocol>.Handler" to each packed in the list until a hander is
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* found. If a protocol handler is not found in this list of packages, or if
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* the property does not exist, then the default protocol handler of
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* "gnu.java.net.<protocol>.Handler" is tried. If this is
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* unsuccessful, a MalformedURLException is thrown.
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* <p>
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* All of the constructor methods of URL attempt to load a protocol
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* handler and so any needed protocol handlers must be installed when
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* the URL is constructed.
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* <p>
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* Here is an example of how URL searches for protocol handlers. Assume
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* the value of java.protocol.handler.pkgs is "com.foo|com.bar" and the
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* URL is "news://comp.lang.java.programmer". URL would looking the
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* following places for protocol handlers:
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* <p><pre>
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* com.foo.news.Handler
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* com.bar.news.Handler
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* gnu.java.net.news.Handler
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* </pre><p>
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* If the protocol handler is not found in any of those locations, a
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* MalformedURLException would be thrown.
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* <p>
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* Please note that a protocol handler must be a subclass of
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* URLStreamHandler.
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* <p>
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* Normally, this class caches protocol handlers. Once it finds a handler
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* for a particular protocol, it never tries to look up a new handler
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* again. However, if the system property
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* gnu.java.net.nocache_protocol_handlers is set, then this
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* caching behavior is disabled. This property is specific to this
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* implementation. Sun's JDK may or may not do protocol caching, but it
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* almost certainly does not examine this property.
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* <p>
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* Please also note that an application can install its own factory for
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* loading protocol handlers (see setURLStreamHandlerFactory). If this is
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* done, then the above information is superseded and the behavior of this
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* class in loading protocol handlers is dependent on that factory.
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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* @author Warren Levy (warrenl@cygnus.com)
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*
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* @see URLStreamHandler
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*/
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public final class URL implements Serializable
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{
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private static final String DEFAULT_SEARCH_PATH =
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"gnu.java.net.protocol|gnu.inet";
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// Cached System ClassLoader
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private static ClassLoader systemClassLoader;
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/**
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* The name of the protocol for this URL.
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* The protocol is always stored in lower case.
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*/
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private String protocol;
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/**
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* The "authority" portion of the URL.
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*/
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private String authority;
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/**
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* The hostname or IP address of this protocol.
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* This includes a possible user. For example <code>joe@some.host.net</code>.
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*/
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private String host;
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/**
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* The user information necessary to establish the connection.
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*/
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private String userInfo;
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/**
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* The port number of this protocol or -1 if the port number used is
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* the default for this protocol.
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*/
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private int port = -1; // Initialize for constructor using context.
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/**
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* The "file" portion of the URL. It is defined as <code>path[?query]</code>.
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*/
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private String file;
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/**
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* The anchor portion of the URL.
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*/
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private String ref;
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/**
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* This is the hashCode for this URL
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*/
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private int hashCode;
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/**
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* The protocol handler in use for this URL
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*/
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transient URLStreamHandler ph;
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/**
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* If an application installs its own protocol handler factory, this is
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* where we keep track of it.
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*/
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private static URLStreamHandlerFactory factory;
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private static final long serialVersionUID = -7627629688361524110L;
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/**
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* This a table where we cache protocol handlers to avoid the overhead
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* of looking them up each time.
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*/
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private static HashMap ph_cache = new HashMap();
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/**
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* Whether or not to cache protocol handlers.
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*/
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private static boolean cache_handlers;
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static
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{
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String s = System.getProperty("gnu.java.net.nocache_protocol_handlers");
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if (s == null)
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cache_handlers = true;
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else
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cache_handlers = false;
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}
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/**
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* Constructs a URL and loads a protocol handler for the values passed as
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* arguments.
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*
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* @param protocol The protocol for this URL ("http", "ftp", etc)
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* @param host The hostname or IP address to connect to
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* @param port The port number to use, or -1 to use the protocol's
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* default port
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* @param file The "file" portion of the URL.
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*
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* @exception MalformedURLException If a protocol handler cannot be loaded or
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* a parse error occurs.
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*/
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public URL(String protocol, String host, int port, String file)
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throws MalformedURLException
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{
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this(protocol, host, port, file, null);
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}
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/**
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* Constructs a URL and loads a protocol handler for the values passed in
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* as arugments. Uses the default port for the protocol.
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*
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* @param protocol The protocol for this URL ("http", "ftp", etc)
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* @param host The hostname or IP address for this URL
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* @param file The "file" portion of this URL.
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*
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* @exception MalformedURLException If a protocol handler cannot be loaded or
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* a parse error occurs.
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*/
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public URL(String protocol, String host, String file)
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throws MalformedURLException
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{
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this(protocol, host, -1, file, null);
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}
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/**
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* This method initializes a new instance of <code>URL</code> with the
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* specified protocol, host, port, and file. Additionally, this method
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* allows the caller to specify a protocol handler to use instead of
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* the default. If this handler is specified, the caller must have
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* the "specifyStreamHandler" permission (see <code>NetPermission</code>)
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* or a <code>SecurityException</code> will be thrown.
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*
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* @param protocol The protocol for this URL ("http", "ftp", etc)
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* @param host The hostname or IP address to connect to
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* @param port The port number to use, or -1 to use the protocol's default
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* port
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* @param file The "file" portion of the URL.
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* @param ph The protocol handler to use with this URL.
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*
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* @exception MalformedURLException If no protocol handler can be loaded
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* for the specified protocol.
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* @exception SecurityException If the <code>SecurityManager</code> exists
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* and does not allow the caller to specify its own protocol handler.
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*
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* @since 1.2
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*/
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public URL(String protocol, String host, int port, String file,
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URLStreamHandler ph) throws MalformedURLException
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{
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if (protocol == null)
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throw new MalformedURLException("null protocol");
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protocol = protocol.toLowerCase();
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this.protocol = protocol;
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if (ph != null)
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{
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SecurityManager s = System.getSecurityManager();
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if (s != null)
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s.checkPermission(new NetPermission("specifyStreamHandler"));
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this.ph = ph;
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}
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else
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this.ph = getURLStreamHandler(protocol);
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|
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if (this.ph == null)
|
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throw new MalformedURLException("Protocol handler not found: "
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+ protocol);
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this.host = host;
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this.port = port;
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this.authority = (host != null) ? host : "";
|
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if (port >= 0 && host != null)
|
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this.authority += ":" + port;
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|
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int hashAt = file.indexOf('#');
|
||||
if (hashAt < 0)
|
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{
|
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this.file = file;
|
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this.ref = null;
|
||||
}
|
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else
|
||||
{
|
||||
this.file = file.substring(0, hashAt);
|
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this.ref = file.substring(hashAt + 1);
|
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}
|
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hashCode = hashCode(); // Used for serialization.
|
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}
|
||||
|
||||
/**
|
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* Initializes a URL from a complete string specification such as
|
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* "http://www.urbanophile.com/arenn/". First the protocol name is parsed
|
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* out of the string. Then a handler is located for that protocol and
|
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* the parseURL() method of that protocol handler is used to parse the
|
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* remaining fields.
|
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*
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* @param spec The complete String representation of a URL
|
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*
|
||||
* @exception MalformedURLException If a protocol handler cannot be found
|
||||
* or the URL cannot be parsed
|
||||
*/
|
||||
public URL(String spec) throws MalformedURLException
|
||||
{
|
||||
this((URL) null, spec != null ? spec : "", (URLStreamHandler) null);
|
||||
}
|
||||
|
||||
/**
|
||||
* This method parses a String representation of a URL within the
|
||||
* context of an existing URL. Principally this means that any
|
||||
* fields not present the URL are inheritied from the context URL.
|
||||
* This allows relative URL's to be easily constructed. If the
|
||||
* context argument is null, then a complete URL must be specified
|
||||
* in the URL string. If the protocol parsed out of the URL is
|
||||
* different from the context URL's protocol, then then URL String
|
||||
* is also expected to be a complete URL.
|
||||
*
|
||||
* @param context The context on which to parse the specification
|
||||
* @param spec The string to parse an URL
|
||||
*
|
||||
* @exception MalformedURLException If a protocol handler cannot be found
|
||||
* for the URL cannot be parsed
|
||||
*/
|
||||
public URL(URL context, String spec) throws MalformedURLException
|
||||
{
|
||||
this(context, spec, (URLStreamHandler) null);
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates an URL from given arguments
|
||||
* This method parses a String representation of a URL within the
|
||||
* context of an existing URL. Principally this means that any fields
|
||||
* not present the URL are inheritied from the context URL. This allows
|
||||
* relative URL's to be easily constructed. If the context argument is
|
||||
* null, then a complete URL must be specified in the URL string.
|
||||
* If the protocol parsed out of the URL is different
|
||||
* from the context URL's protocol, then then URL String is also
|
||||
* expected to be a complete URL.
|
||||
* <p>
|
||||
* Additionally, this method allows the caller to specify a protocol handler
|
||||
* to use instead of the default. If this handler is specified, the caller
|
||||
* must have the "specifyStreamHandler" permission
|
||||
* (see <code>NetPermission</code>) or a <code>SecurityException</code>
|
||||
* will be thrown.
|
||||
*
|
||||
* @param context The context in which to parse the specification
|
||||
* @param spec The string to parse as an URL
|
||||
* @param ph The stream handler for the URL
|
||||
*
|
||||
* @exception MalformedURLException If a protocol handler cannot be found
|
||||
* or the URL cannot be parsed
|
||||
* @exception SecurityException If the <code>SecurityManager</code> exists
|
||||
* and does not allow the caller to specify its own protocol handler.
|
||||
*
|
||||
* @since 1.2
|
||||
*/
|
||||
public URL(URL context, String spec, URLStreamHandler ph)
|
||||
throws MalformedURLException
|
||||
{
|
||||
/* A protocol is defined by the doc as the substring before a ':'
|
||||
* as long as the ':' occurs before any '/'.
|
||||
*
|
||||
* If context is null, then spec must be an absolute URL.
|
||||
*
|
||||
* The relative URL need not specify all the components of a URL.
|
||||
* If the protocol, host name, or port number is missing, the value
|
||||
* is inherited from the context. A bare file component is appended
|
||||
* to the context's file. The optional anchor is not inherited.
|
||||
*/
|
||||
|
||||
// If this is an absolute URL, then ignore context completely.
|
||||
// An absolute URL must have chars prior to "://" but cannot have a colon
|
||||
// right after the "://". The second colon is for an optional port value
|
||||
// and implies that the host from the context is used if available.
|
||||
int colon;
|
||||
int slash = spec.indexOf('/');
|
||||
if ((colon = spec.indexOf("://", 1)) > 0
|
||||
&& ((colon < slash || slash < 0))
|
||||
&& ! spec.regionMatches(colon, "://:", 0, 4))
|
||||
context = null;
|
||||
|
||||
if ((colon = spec.indexOf(':')) > 0
|
||||
&& (colon < slash || slash < 0))
|
||||
{
|
||||
// Protocol specified in spec string.
|
||||
protocol = spec.substring(0, colon).toLowerCase();
|
||||
if (context != null && context.protocol.equals(protocol))
|
||||
{
|
||||
// The 1.2 doc specifically says these are copied to the new URL.
|
||||
host = context.host;
|
||||
port = context.port;
|
||||
userInfo = context.userInfo;
|
||||
authority = context.authority;
|
||||
}
|
||||
}
|
||||
else if (context != null)
|
||||
{
|
||||
// Protocol NOT specified in spec string.
|
||||
// Use context fields (except ref) as a foundation for relative URLs.
|
||||
colon = -1;
|
||||
protocol = context.protocol;
|
||||
host = context.host;
|
||||
port = context.port;
|
||||
userInfo = context.userInfo;
|
||||
if (spec.indexOf(":/", 1) < 0)
|
||||
{
|
||||
file = context.file;
|
||||
if (file == null || file.length() == 0)
|
||||
file = "/";
|
||||
}
|
||||
authority = context.authority;
|
||||
}
|
||||
else // Protocol NOT specified in spec. and no context available.
|
||||
throw new MalformedURLException("Absolute URL required with null"
|
||||
+ " context: " + spec);
|
||||
|
||||
protocol = protocol.trim();
|
||||
|
||||
if (ph != null)
|
||||
{
|
||||
SecurityManager s = System.getSecurityManager();
|
||||
if (s != null)
|
||||
s.checkPermission(new NetPermission("specifyStreamHandler"));
|
||||
|
||||
this.ph = ph;
|
||||
}
|
||||
else
|
||||
this.ph = getURLStreamHandler(protocol);
|
||||
|
||||
if (this.ph == null)
|
||||
throw new MalformedURLException("Protocol handler not found: "
|
||||
+ protocol);
|
||||
|
||||
// JDK 1.2 doc for parseURL specifically states that any '#' ref
|
||||
// is to be excluded by passing the 'limit' as the indexOf the '#'
|
||||
// if one exists, otherwise pass the end of the string.
|
||||
int hashAt = spec.indexOf('#', colon + 1);
|
||||
|
||||
try
|
||||
{
|
||||
this.ph.parseURL(this, spec, colon + 1,
|
||||
hashAt < 0 ? spec.length() : hashAt);
|
||||
}
|
||||
catch (URLParseError e)
|
||||
{
|
||||
throw new MalformedURLException(e.getMessage());
|
||||
}
|
||||
|
||||
if (hashAt >= 0)
|
||||
ref = spec.substring(hashAt + 1);
|
||||
|
||||
hashCode = hashCode(); // Used for serialization.
|
||||
}
|
||||
|
||||
/**
|
||||
* Test another URL for equality with this one. This will be true only if
|
||||
* the argument is non-null and all of the fields in the URL's match
|
||||
* exactly (ie, protocol, host, port, file, and ref). Overrides
|
||||
* Object.equals(), implemented by calling the equals method of the handler.
|
||||
*
|
||||
* @param obj The URL to compare with
|
||||
*
|
||||
* @return true if the URL is equal, false otherwise
|
||||
*/
|
||||
public boolean equals(Object obj)
|
||||
{
|
||||
if (! (obj instanceof URL))
|
||||
return false;
|
||||
|
||||
return ph.equals(this, (URL) obj);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the contents of this URL as an object by first opening a
|
||||
* connection, then calling the getContent() method against the connection
|
||||
*
|
||||
* @return A content object for this URL
|
||||
* @exception IOException If opening the connection or getting the
|
||||
* content fails.
|
||||
*
|
||||
* @since 1.3
|
||||
*/
|
||||
public Object getContent() throws IOException
|
||||
{
|
||||
return openConnection().getContent();
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the contents of this URL
|
||||
*
|
||||
* @param classes The allow classes for the content object.
|
||||
*
|
||||
* @return a context object for this URL.
|
||||
*
|
||||
* @exception IOException If an error occurs
|
||||
*/
|
||||
public Object getContent(Class[] classes) throws IOException
|
||||
{
|
||||
// FIXME: implement this
|
||||
return getContent();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the file portion of the URL.
|
||||
* Defined as <code>path[?query]</code>.
|
||||
* Returns the empty string if there is no file portion.
|
||||
*
|
||||
* @return The filename specified in this URL, or an empty string if empty.
|
||||
*/
|
||||
public String getFile()
|
||||
{
|
||||
return file == null ? "" : file;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the path of the URL. This is the part of the file before any '?'
|
||||
* character.
|
||||
*
|
||||
* @return The path specified in this URL, or null if empty.
|
||||
*
|
||||
* @since 1.3
|
||||
*/
|
||||
public String getPath()
|
||||
{
|
||||
// The spec says we need to return an empty string, but some
|
||||
// applications depends on receiving null when the path is empty.
|
||||
if (file == null)
|
||||
return null;
|
||||
int quest = file.indexOf('?');
|
||||
return quest < 0 ? getFile() : file.substring(0, quest);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the authority of the URL
|
||||
*
|
||||
* @return The authority specified in this URL.
|
||||
*
|
||||
* @since 1.3
|
||||
*/
|
||||
public String getAuthority()
|
||||
{
|
||||
return authority;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the host of the URL
|
||||
*
|
||||
* @return The host specified in this URL.
|
||||
*/
|
||||
public String getHost()
|
||||
{
|
||||
int at = (host == null) ? -1 : host.indexOf('@');
|
||||
return at < 0 ? host : host.substring(at + 1, host.length());
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the port number of this URL or -1 if the default port number is
|
||||
* being used.
|
||||
*
|
||||
* @return The port number
|
||||
*
|
||||
* @see #getDefaultPort()
|
||||
*/
|
||||
public int getPort()
|
||||
{
|
||||
return port;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the default port of the URL. If the StreamHandler for the URL
|
||||
* protocol does not define a default port it returns -1.
|
||||
*
|
||||
* @return The default port of the current protocol.
|
||||
*/
|
||||
public int getDefaultPort()
|
||||
{
|
||||
return ph.getDefaultPort();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the protocol of the URL
|
||||
*
|
||||
* @return The specified protocol.
|
||||
*/
|
||||
public String getProtocol()
|
||||
{
|
||||
return protocol;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ref (sometimes called the "# reference" or "anchor") portion
|
||||
* of the URL.
|
||||
*
|
||||
* @return The ref
|
||||
*/
|
||||
public String getRef()
|
||||
{
|
||||
return ref;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the user information of the URL. This is the part of the host
|
||||
* name before the '@'.
|
||||
*
|
||||
* @return the user at a particular host or null when no user defined.
|
||||
*/
|
||||
public String getUserInfo()
|
||||
{
|
||||
if (userInfo != null)
|
||||
return userInfo;
|
||||
int at = (host == null) ? -1 : host.indexOf('@');
|
||||
return at < 0 ? null : host.substring(0, at);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the query of the URL. This is the part of the file before the
|
||||
* '?'.
|
||||
*
|
||||
* @return the query part of the file, or null when there is no query part.
|
||||
*/
|
||||
public String getQuery()
|
||||
{
|
||||
int quest = (file == null) ? -1 : file.indexOf('?');
|
||||
return quest < 0 ? null : file.substring(quest + 1, file.length());
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a hashcode computed by the URLStreamHandler of this URL
|
||||
*
|
||||
* @return The hashcode for this URL.
|
||||
*/
|
||||
public int hashCode()
|
||||
{
|
||||
if (hashCode != 0)
|
||||
return hashCode; // Use cached value if available.
|
||||
else
|
||||
return ph.hashCode(this);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a URLConnection object that represents a connection to the remote
|
||||
* object referred to by the URL. The URLConnection is created by calling the
|
||||
* openConnection() method of the protocol handler
|
||||
*
|
||||
* @return A URLConnection for this URL
|
||||
*
|
||||
* @exception IOException If an error occurs
|
||||
*/
|
||||
public URLConnection openConnection() throws IOException
|
||||
{
|
||||
return ph.openConnection(this);
|
||||
}
|
||||
|
||||
/**
|
||||
* Opens a connection to this URL and returns an InputStream for reading
|
||||
* from that connection
|
||||
*
|
||||
* @return An <code>InputStream</code> for this URL.
|
||||
*
|
||||
* @exception IOException If an error occurs
|
||||
*/
|
||||
public InputStream openStream() throws IOException
|
||||
{
|
||||
return openConnection().getInputStream();
|
||||
}
|
||||
|
||||
/**
|
||||
* Tests whether or not another URL refers to the same "file" as this one.
|
||||
* This will be true if and only if the passed object is not null, is a
|
||||
* URL, and matches all fields but the ref (ie, protocol, host, port,
|
||||
* and file);
|
||||
*
|
||||
* @param url The URL object to test with
|
||||
*
|
||||
* @return true if URL matches this URL's file, false otherwise
|
||||
*/
|
||||
public boolean sameFile(URL url)
|
||||
{
|
||||
return ph.sameFile(this, url);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the specified fields of the URL. This is not a public method so
|
||||
* that only URLStreamHandlers can modify URL fields. This might be called
|
||||
* by the <code>parseURL()</code> method in that class. URLs are otherwise
|
||||
* constant. If the given protocol does not exist, it will keep the previously
|
||||
* set protocol.
|
||||
*
|
||||
* @param protocol The protocol name for this URL
|
||||
* @param host The hostname or IP address for this URL
|
||||
* @param port The port number of this URL
|
||||
* @param file The "file" portion of this URL.
|
||||
* @param ref The anchor portion of this URL.
|
||||
*/
|
||||
protected void set(String protocol, String host, int port, String file,
|
||||
String ref)
|
||||
{
|
||||
URLStreamHandler protocolHandler = null;
|
||||
protocol = protocol.toLowerCase();
|
||||
if (! this.protocol.equals(protocol))
|
||||
protocolHandler = getURLStreamHandler(protocol);
|
||||
|
||||
// It is an hidden feature of the JDK. If the protocol does not exist,
|
||||
// we keep the previously initialized protocol.
|
||||
if (protocolHandler != null)
|
||||
{
|
||||
this.ph = protocolHandler;
|
||||
this.protocol = protocol;
|
||||
}
|
||||
this.authority = "";
|
||||
this.port = port;
|
||||
this.host = host;
|
||||
this.file = file;
|
||||
this.ref = ref;
|
||||
|
||||
if (host != null)
|
||||
this.authority += host;
|
||||
if (port >= 0)
|
||||
this.authority += ":" + port;
|
||||
|
||||
hashCode = hashCode(); // Used for serialization.
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the specified fields of the URL. This is not a public method so
|
||||
* that only URLStreamHandlers can modify URL fields. URLs are otherwise
|
||||
* constant. If the given protocol does not exist, it will keep the previously
|
||||
* set protocol.
|
||||
*
|
||||
* @param protocol The protocol name for this URL.
|
||||
* @param host The hostname or IP address for this URL.
|
||||
* @param port The port number of this URL.
|
||||
* @param authority The authority of this URL.
|
||||
* @param userInfo The user and password (if needed) of this URL.
|
||||
* @param path The "path" portion of this URL.
|
||||
* @param query The query of this URL.
|
||||
* @param ref The anchor portion of this URL.
|
||||
*
|
||||
* @since 1.3
|
||||
*/
|
||||
protected void set(String protocol, String host, int port, String authority,
|
||||
String userInfo, String path, String query, String ref)
|
||||
{
|
||||
URLStreamHandler protocolHandler = null;
|
||||
protocol = protocol.toLowerCase();
|
||||
if (! this.protocol.equals(protocol))
|
||||
protocolHandler = getURLStreamHandler(protocol);
|
||||
|
||||
// It is an hidden feature of the JDK. If the protocol does not exist,
|
||||
// we keep the previously initialized protocol.
|
||||
if (protocolHandler != null)
|
||||
{
|
||||
this.ph = protocolHandler;
|
||||
this.protocol = protocol;
|
||||
}
|
||||
this.host = host;
|
||||
this.userInfo = userInfo;
|
||||
this.port = port;
|
||||
this.authority = authority;
|
||||
if (query == null)
|
||||
this.file = path;
|
||||
else
|
||||
this.file = path + "?" + query;
|
||||
this.ref = ref;
|
||||
hashCode = hashCode(); // Used for serialization.
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the URLStreamHandlerFactory for this class. This factory is
|
||||
* responsible for returning the appropriate protocol handler for
|
||||
* a given URL.
|
||||
*
|
||||
* @param fac The URLStreamHandlerFactory class to use
|
||||
*
|
||||
* @exception Error If the factory is alread set.
|
||||
* @exception SecurityException If a security manager exists and its
|
||||
* checkSetFactory method doesn't allow the operation
|
||||
*/
|
||||
public static synchronized void setURLStreamHandlerFactory(URLStreamHandlerFactory fac)
|
||||
{
|
||||
if (factory != null)
|
||||
throw new Error("URLStreamHandlerFactory already set");
|
||||
|
||||
// Throw an exception if an extant security mgr precludes
|
||||
// setting the factory.
|
||||
SecurityManager s = System.getSecurityManager();
|
||||
if (s != null)
|
||||
s.checkSetFactory();
|
||||
factory = fac;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a String representing this URL. The String returned is
|
||||
* created by calling the protocol handler's toExternalForm() method.
|
||||
*
|
||||
* @return A string for this URL
|
||||
*/
|
||||
public String toExternalForm()
|
||||
{
|
||||
// Identical to toString().
|
||||
return ph.toExternalForm(this);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a String representing this URL. Identical to toExternalForm().
|
||||
* The value returned is created by the protocol handler's
|
||||
* toExternalForm method. Overrides Object.toString()
|
||||
*
|
||||
* @return A string for this URL
|
||||
*/
|
||||
public String toString()
|
||||
{
|
||||
// Identical to toExternalForm().
|
||||
return ph.toExternalForm(this);
|
||||
}
|
||||
|
||||
/**
|
||||
* This internal method is used in two different constructors to load
|
||||
* a protocol handler for this URL.
|
||||
*
|
||||
* @param protocol The protocol to load a handler for
|
||||
*
|
||||
* @return A URLStreamHandler for this protocol, or null when not found.
|
||||
*/
|
||||
private static synchronized URLStreamHandler getURLStreamHandler(String protocol)
|
||||
{
|
||||
URLStreamHandler ph = null;
|
||||
|
||||
// First, see if a protocol handler is in our cache.
|
||||
if (cache_handlers)
|
||||
{
|
||||
if ((ph = (URLStreamHandler) ph_cache.get(protocol)) != null)
|
||||
return ph;
|
||||
}
|
||||
|
||||
// If a non-default factory has been set, use it to find the protocol.
|
||||
if (factory != null)
|
||||
{
|
||||
ph = factory.createURLStreamHandler(protocol);
|
||||
}
|
||||
else if (protocol.equals("core"))
|
||||
{
|
||||
ph = new gnu.java.net.protocol.core.Handler();
|
||||
}
|
||||
else if (protocol.equals("file"))
|
||||
{
|
||||
// This is an interesting case. It's tempting to think that we
|
||||
// could call Class.forName ("gnu.java.net.protocol.file.Handler") to
|
||||
// get the appropriate class. Unfortunately, if we do that the
|
||||
// program will never terminate, because getURLStreamHandler is
|
||||
// eventually called by Class.forName.
|
||||
//
|
||||
// Treating "file" as a special case is the minimum that will
|
||||
// fix this problem. If other protocols are required in a
|
||||
// statically linked application they will need to be handled in
|
||||
// the same way as "file".
|
||||
ph = new gnu.java.net.protocol.file.Handler();
|
||||
}
|
||||
|
||||
// Non-default factory may have returned null or a factory wasn't set.
|
||||
// Use the default search algorithm to find a handler for this protocol.
|
||||
if (ph == null)
|
||||
{
|
||||
// Get the list of packages to check and append our default handler
|
||||
// to it, along with the JDK specified default as a last resort.
|
||||
// Except in very unusual environments the JDK specified one shouldn't
|
||||
// ever be needed (or available).
|
||||
String ph_search_path =
|
||||
System.getProperty("java.protocol.handler.pkgs");
|
||||
|
||||
// Tack our default package on at the ends.
|
||||
if (ph_search_path != null)
|
||||
ph_search_path += "|" + DEFAULT_SEARCH_PATH;
|
||||
else
|
||||
ph_search_path = DEFAULT_SEARCH_PATH;
|
||||
|
||||
// Finally loop through our search path looking for a match.
|
||||
StringTokenizer pkgPrefix = new StringTokenizer(ph_search_path, "|");
|
||||
|
||||
// Cache the systemClassLoader
|
||||
if (systemClassLoader == null)
|
||||
{
|
||||
systemClassLoader = (ClassLoader) AccessController.doPrivileged
|
||||
(new PrivilegedAction() {
|
||||
public Object run()
|
||||
{
|
||||
return ClassLoader.getSystemClassLoader();
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
do
|
||||
{
|
||||
try
|
||||
{
|
||||
// Try to get a class from the system/application
|
||||
// classloader, initialize it, make an instance
|
||||
// and try to cast it to a URLStreamHandler.
|
||||
String clsName =
|
||||
(pkgPrefix.nextToken() + "." + protocol + ".Handler");
|
||||
Class c = Class.forName(clsName, true, systemClassLoader);
|
||||
ph = (URLStreamHandler) c.newInstance();
|
||||
}
|
||||
catch (ThreadDeath death)
|
||||
{
|
||||
throw death;
|
||||
}
|
||||
catch (Throwable t)
|
||||
{
|
||||
// Ignored.
|
||||
}
|
||||
}
|
||||
while (ph == null && pkgPrefix.hasMoreTokens());
|
||||
}
|
||||
|
||||
// Update the hashtable with the new protocol handler.
|
||||
if (ph != null && cache_handlers)
|
||||
ph_cache.put(protocol, ph);
|
||||
else
|
||||
ph = null;
|
||||
|
||||
return ph;
|
||||
}
|
||||
|
||||
private void readObject(ObjectInputStream ois)
|
||||
throws IOException, ClassNotFoundException
|
||||
{
|
||||
ois.defaultReadObject();
|
||||
this.ph = getURLStreamHandler(protocol);
|
||||
if (this.ph == null)
|
||||
throw new IOException("Handler for protocol " + protocol + " not found");
|
||||
}
|
||||
|
||||
private void writeObject(ObjectOutputStream oos) throws IOException
|
||||
{
|
||||
oos.defaultWriteObject();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the equivalent <code>URI</code> object for this <code>URL</code>.
|
||||
* This is the same as calling <code>new URI(this.toString())</code>.
|
||||
* RFC2396-compliant URLs are guaranteed a successful conversion to
|
||||
* a <code>URI</code> instance. However, there are some values which
|
||||
* form valid URLs, but which do not also form RFC2396-compliant URIs.
|
||||
*
|
||||
* @throws URISyntaxException if this URL is not RFC2396-compliant,
|
||||
* and thus can not be successfully converted to a URI.
|
||||
*/
|
||||
public URI toURI()
|
||||
throws URISyntaxException
|
||||
{
|
||||
return new URI(toString());
|
||||
}
|
||||
|
||||
}
|
@ -4845,7 +4845,7 @@ classpath/java/net/SocketPermission.java \
|
||||
classpath/java/net/SocketTimeoutException.java \
|
||||
classpath/java/net/URI.java \
|
||||
classpath/java/net/URISyntaxException.java \
|
||||
java/net/URL.java \
|
||||
classpath/java/net/URL.java \
|
||||
java/net/URLClassLoader.java \
|
||||
classpath/java/net/URLConnection.java \
|
||||
classpath/java/net/URLDecoder.java \
|
||||
|
Loading…
Reference in New Issue
Block a user