+++ /dev/null
-// URLConnection.java - Superclass of all communications links between
-// an application and a URL.
-
-/* Copyright (C) 1999, 2000 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. */
-
-package java.net;
-
-import java.io.*;
-import java.text.ParsePosition;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.Locale;
-import java.util.Hashtable;
-import java.util.StringTokenizer;
-import gnu.gcj.io.MimeTypes;
-
-/**
- * @author Warren Levy <warrenl@cygnus.com>
- * @date March 5, 1999.
- */
-
-/**
- * Written using on-line Java Platform 1.2 API Specification, as well
- * as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998).
- * Status: One guessContentTypeFrom... methods not implemented.
- * getContent method assumes content type from response; see comment there.
- */
-
-public abstract class URLConnection
-{
- protected URL url;
- protected boolean doInput = true;
- protected boolean doOutput = false;
- protected boolean allowUserInteraction;
- protected boolean useCaches;
- protected long ifModifiedSince = 0L;
- protected boolean connected = false;
- private static boolean defaultAllowUserInteraction = false;
- private static boolean defaultUseCaches = true;
- private static FileNameMap fileNameMap; // Set by the URLConnection subclass.
- private static ContentHandlerFactory factory;
- private static ContentHandler contentHandler;
- private static Hashtable handlers = new Hashtable();
- private static Locale locale;
- private static SimpleDateFormat dateFormat1, dateFormat2, dateFormat3;
- private static boolean dateformats_initialized = false;
-
- protected URLConnection(URL url)
- {
- this.url = url;
- allowUserInteraction = defaultAllowUserInteraction;
- useCaches = defaultUseCaches;
- }
-
- public abstract void connect() throws IOException;
-
- public URL getURL()
- {
- return url;
- }
-
- public int getContentLength()
- {
- return getHeaderFieldInt("content-length", -1);
- }
-
- public String getContentType()
- {
- return getHeaderField("content-type");
- }
-
- public String getContentEncoding()
- {
- return getHeaderField("content-encoding");
- }
-
- public long getExpiration()
- {
- return getHeaderFieldDate("expiration", 0L);
- }
-
- public long getDate()
- {
- return getHeaderFieldDate("date", 0L);
- }
-
- public long getLastModified()
- {
- return getHeaderFieldDate("last-modified", 0L);
- }
-
- public String getHeaderField(int n)
- {
- // Subclasses for specific protocols override this.
- return null;
- }
-
- public String getHeaderField(String name)
- {
- // Subclasses for specific protocols override this.
- return null;
- }
-
- public int getHeaderFieldInt(String name, int val)
- {
- String str = getHeaderField(name);
- try
- {
- if (str != null)
- val = Integer.parseInt(str);
- }
- catch (NumberFormatException e)
- {
- ; // Do nothing; val is the default.
- }
- return val;
- }
-
- public long getHeaderFieldDate(String name, long val)
- {
- if (! dateformats_initialized)
- initializeDateFormats();
- String str = getHeaderField(name);
- if (str != null)
- {
- Date date;
- if ((date = dateFormat1.parse(str, new ParsePosition(0))) != null)
- val = date.getTime();
- else if ((date = dateFormat2.parse(str, new ParsePosition(0))) != null)
- val = date.getTime();
- else if ((date = dateFormat3.parse(str, new ParsePosition(0))) != null)
- val = date.getTime();
- }
- return val;
- }
-
- public String getHeaderFieldKey(int n)
- {
- // Subclasses for specific protocols override this.
- return null;
- }
-
- public Object getContent() throws IOException
- {
- // FIXME: Doc indicates that other criteria should be applied as
- // heuristics to determine the true content type, e.g. see
- // guessContentTypeFromName() and guessContentTypeFromStream methods
- // as well as FileNameMap class & fileNameMap field & get/set methods.
- String cType = getContentType();
- contentHandler = setContentHandler(cType);
- if (contentHandler == null)
- return getInputStream();
-
- return contentHandler.getContent(this);
- }
-
-// TODO12: public Permission getPermission() throws IOException
-// {
-// // Subclasses may override this.
-// return java.security.AllPermission;
-// }
-
- public InputStream getInputStream() throws IOException
- {
- // Subclasses for specific protocols override this.
- throw new UnknownServiceException("Protocol " + url.getProtocol() +
- " does not support input.");
- }
-
- public OutputStream getOutputStream() throws IOException
- {
- // Subclasses for specific protocols override this.
- throw new UnknownServiceException("Protocol " + url.getProtocol() +
- " does not support output.");
- }
-
- public String toString()
- {
- return this.getClass().getName() + ":" + url.toString();
- }
-
- public void setDoInput(boolean doinput)
- {
- if (connected)
- throw new IllegalAccessError("Already connected");
-
- doInput = doinput;
- }
-
- public boolean getDoInput()
- {
- return doInput;
- }
-
- public void setDoOutput(boolean dooutput)
- {
- if (connected)
- throw new IllegalAccessError("Already connected");
-
- doOutput = dooutput;
- }
-
- public boolean getDoOutput()
- {
- return doOutput;
- }
-
- public void setAllowUserInteraction(boolean allowuserinteraction)
- {
- if (connected)
- throw new IllegalAccessError("Already connected");
-
- allowUserInteraction = allowuserinteraction;
- }
-
- public boolean getAllowUserInteraction()
- {
- return allowUserInteraction;
- }
-
- public static void
- setDefaultAllowUserInteraction(boolean defaultallowuserinteraction)
- {
- defaultAllowUserInteraction = defaultallowuserinteraction;
- }
-
- public static boolean getDefaultAllowUserInteraction()
- {
- return defaultAllowUserInteraction;
- }
-
- public void setUseCaches(boolean usecaches)
- {
- if (connected)
- throw new IllegalAccessError("Already connected");
-
- useCaches = usecaches;
- }
-
- public boolean getUseCaches()
- {
- return useCaches;
- }
-
- public void setIfModifiedSince(long ifmodifiedsince)
- {
- if (connected)
- throw new IllegalAccessError("Already connected");
-
- ifModifiedSince = ifmodifiedsince;
- }
-
- public long getIfModifiedSince()
- {
- return ifModifiedSince;
- }
-
- public boolean getDefaultUseCaches()
- {
- return defaultUseCaches;
- }
-
- public void setDefaultUseCaches(boolean defaultusecaches)
- {
- defaultUseCaches = defaultusecaches;
- }
-
- public void setRequestProperty(String key, String value)
- {
- // Do nothing unless overridden by subclasses that support setting
- // header fields in the request.
- }
-
- public String getRequestProperty(String key)
- {
- // Overridden by subclasses that support reading header fields from the
- // request.
- return null;
- }
-
- public static void setDefaultRequestProperty(String key, String value)
- {
- // Do nothing unless overridden by subclasses that support setting
- // default request properties.
- }
-
- public static String getDefaultRequestProperty(String key)
- {
- // Overridden by subclasses that support default request properties.
- return null;
- }
-
- public static void setContentHandlerFactory(ContentHandlerFactory fac)
- {
- if (factory != null)
- throw new Error("ContentHandlerFactory 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;
- }
-
- protected static String guessContentTypeFromName(String fname)
- {
- int dot = fname.lastIndexOf (".");
-
- if (dot != -1)
- {
- if (dot == fname.length())
- return ("application/octet-stream");
- else
- fname = fname.substring (dot + 1);
- }
-
- String type = MimeTypes.getMimeTypeFromExtension (fname);
-
- if (type == null)
- return("application/octet-stream");
-
- return(type);
- }
-
-// TODO: public static String guessContentTypeFromStream(InputStream is)
-// throws IOException
-// {
-// }
-
-// TODO12: protected void parseURL(URL u, String spec, int start, int limit)
-
- // JDK1.2
- public static FileNameMap getFileNameMap()
- {
- return fileNameMap;
- }
-
- // JDK1.2
- public static void setFileNameMap(FileNameMap map)
- {
- // Throw an exception if an extant security mgr precludes
- // setting the factory.
- SecurityManager s = System.getSecurityManager();
- if (s != null)
- s.checkSetFactory();
-
- fileNameMap = map;
- }
-
- private ContentHandler setContentHandler(String contentType)
- {
- ContentHandler handler;
-
- // No content type so just handle it as the default.
- if (contentType == null || contentType == "")
- return null;
-
- // See if a handler has been cached for this content type.
- // For efficiency, if a content type has been searched for but not
- // found, it will be in the hash table but as the contentType String
- // instead of a ContentHandler.
- if ((handler = (ContentHandler) handlers.get(contentType)) != null)
- if (handler instanceof ContentHandler)
- return handler;
- else
- return null;
-
- // If a non-default factory has been set, use it to find the content type.
- if (factory != null)
- handler = factory.createContentHandler(contentType);
-
- // Non-default factory may have returned null or a factory wasn't set.
- // Use the default search algorithm to find a handler for this content type.
- if (handler == 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 propVal = System.getProperty("java.content.handler.pkgs");
- propVal = (propVal == null) ? "" : (propVal + "|");
- propVal = propVal + "gnu.gcj.content|sun.net.www.content";
-
- // Replace the '/' character in the content type with '.' and
- // all other non-alphabetic, non-numeric characters with '_'.
- StringTokenizer pkgPrefix = new StringTokenizer(propVal, "|");
- char[] cArray = contentType.toCharArray();
- for (int i = 0; i < cArray.length; i++)
- {
- if (cArray[i] == '/')
- cArray[i] = '.';
- else if (! ((cArray[i] >= 'A' && cArray[i] <= 'Z') ||
- (cArray[i] >= 'a' && cArray[i] <= 'z') ||
- (cArray[i] >= '0' && cArray[i] <= '9')))
- cArray[i] = '_';
- }
- String contentClass = new String(cArray);
-
- // See if a class of this content type exists in any of the packages.
- do
- {
- String facName = pkgPrefix.nextToken() + "." + contentClass;
- try
- {
- handler =
- (ContentHandler) Class.forName(facName).newInstance();
- }
- catch (Exception e)
- {
- // Can't instantiate; handler still null, go on to next element.
- }
- } while ((handler == null ||
- ! (handler instanceof ContentHandler)) &&
- pkgPrefix.hasMoreTokens());
- }
-
- // Update the hashtable with the new content handler.
- if (handler != null && handler instanceof ContentHandler)
- {
- handlers.put(contentType, handler);
- return handler;
- }
-
- // For efficiency on subsequent searches, put a dummy entry in the hash
- // table for content types that don't have a non-default ContentHandler.
- handlers.put(contentType, contentType);
- return null;
- }
-
- // We don't put these in a static initializer, because it creates problems
- // with initializer co-dependency: SimpleDateFormat's constructors eventually
- // depend on URLConnection (via the java.text.*Symbols classes).
- private synchronized void initializeDateFormats()
- {
- if (dateformats_initialized)
- return;
- locale = new Locale("En", "Us", "Unix");
- dateFormat1 = new SimpleDateFormat("EEE, dd MMM yyyy hh:mm:ss 'GMT'",
- locale);
- dateFormat2 = new SimpleDateFormat("EEEE, dd-MMM-yy hh:mm:ss 'GMT'",
- locale);
- dateFormat3 = new SimpleDateFormat("EEE MMM d hh:mm:ss yyyy", locale);
- dateformats_initialized = true;
- }
-}
projects / msp430-gcc.git / blobdiff