llvm-gcc-4.0/libjava/gnu/java/net/protocol/http/Headers.java - llvm-archive - Git at Google

 /* Headers.java --
    Copyright (C) 2004 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.http;

 import gnu.java.net.LineInputStream;

 import java.io.InputStream;
 import java.io.IOException;
 import java.text.DateFormat;
 import java.text.ParseException;
 import java.util.Collection;
 import java.util.Date;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
 import java.util.Map;
 import java.util.Set;

 /**
  * A collection of HTTP header names and associated values.
  * Retrieval of values is case insensitive. An iteration over the keys
  * returns the header names in the order they were received.
  *
  * @author Chris Burdess (dog@gnu.org)
  */
 public class Headers
   implements Map
 {

   static final DateFormat dateFormat = new HTTPDateFormat();

   static class Header
   {

     final String name;

     Header(String name)
     {
       if (name == null || name.length() == 0)
         {
           throw new IllegalArgumentException(name);
         }
       this.name = name;
     }

     public int hashCode()
     {
       return name.toLowerCase().hashCode();
     }

     public boolean equals(Object other)
     {
       if (other instanceof Header)
         {
           return ((Header) other).name.equalsIgnoreCase(name);
         }
       return false;
     }

     public String toString()
     {
       return name;
     }

   }

   static class HeaderEntry
     implements Map.Entry
   {

     final Map.Entry entry;

     HeaderEntry(Map.Entry entry)
     {
       this.entry = entry;
     }

     public Object getKey()
     {
       return ((Header) entry.getKey()).name;
     }

     public Object getValue()
     {
       return entry.getValue();
     }

     public Object setValue(Object value)
     {
       return entry.setValue(value);
     }

     public int hashCode()
     {
       return entry.hashCode();
     }

     public boolean equals(Object other)
     {
       return entry.equals(other);
     }

     public String toString()
     {
       return getKey().toString() + "=" + getValue();
     }

   }

   private LinkedHashMap headers;

   public Headers()
   {
     headers = new LinkedHashMap();
   }

   public int size()
   {
     return headers.size();
   }

   public boolean isEmpty()
   {
     return headers.isEmpty();
   }

   public boolean containsKey(Object key)
   {
     return headers.containsKey(new Header((String) key));
   }

   public boolean containsValue(Object value)
   {
     return headers.containsValue(value);
   }

   public Object get(Object key)
   {
     return headers.get(new Header((String) key));
   }

   /**
    * Returns the value of the specified header as a string.
    */
   public String getValue(String header)
   {
     return (String) headers.get(new Header(header));
   }

   /**
    * Returns the value of the specified header as an integer,
    * or -1 if the header is not present or not an integer.
    */
   public int getIntValue(String header)
   {
     String val = getValue(header);
     if (val == null)
       {
         return -1;
       }
     try
       {
         return Integer.parseInt(val);
       }
     catch (NumberFormatException e)
       {
       }
     return -1;
   }

   /**
    * Returns the value of the specified header as a date,
    * or <code>null</code> if the header is not present or not a date.
    */
   public Date getDateValue(String header)
   {
     String val = getValue(header);
     if (val == null)
       {
         return null;
       }
     try
       {
         return dateFormat.parse(val);
       }
     catch (ParseException e)
       {
         return null;
       }
   }

   public Object put(Object key, Object value)
   {
     return headers.put(new Header((String) key), value);
   }

   public Object remove(Object key)
   {
     return headers.remove(new Header((String) key));
   }

   public void putAll(Map t)
   {
     for (Iterator i = t.keySet().iterator(); i.hasNext(); )
       {
         String key = (String) i.next();
         String value = (String) t.get(key);
         headers.put(new Header(key), value);
       }
   }

   public void clear()
   {
     headers.clear();
   }

   public Set keySet()
   {
     Set keys = headers.keySet();
     Set ret = new LinkedHashSet();
     for (Iterator i = keys.iterator(); i.hasNext(); )
       {
         ret.add(((Header) i.next()).name);
       }
     return ret;
   }

   public Collection values()
   {
     return headers.values();
   }

   public Set entrySet()
   {
     Set entries = headers.entrySet();
     Set ret = new LinkedHashSet();
     for (Iterator i = entries.iterator(); i.hasNext(); )
       {
         Map.Entry entry = (Map.Entry) i.next();
         ret.add(new HeaderEntry(entry));
       }
     return ret;
   }

   public boolean equals(Object other)
   {
     return headers.equals(other);
   }

   public int hashCode()
   {
     return headers.hashCode();
   }

   /**
    * Parse the specified input stream, adding headers to this collection.
    */
   public void parse(InputStream in)
     throws IOException
   {
     LineInputStream lin = (in instanceof LineInputStream) ?
       (LineInputStream) in : new LineInputStream(in);

     String name = null;
     StringBuffer value = new StringBuffer();
     while (true)
       {
         String line = lin.readLine();
         if (line == null)
           {
             if (name != null)
               {
                 addValue(name, value.toString());
               }
             break;
           }
         int len = line.length();
         if (len < 2)
           {
             if (name != null)
               {
                 addValue(name, value.toString());
               }
             break;
           }
         char c1 = line.charAt(0);
         if (c1 == ' ' || c1 == '\t')
           {
             // Continuation
 	    int last = len - 1;
 	    if (line.charAt(last) != '\r')
 	      ++last;
             value.append(line.substring(0, last));
           }
         else
           {
             if (name != null)
               {
                 addValue(name, value.toString());
               }

             int di = line.indexOf(':');
             name = line.substring(0, di);
             value.setLength(0);
             do
               {
                 di++;
               }
             while (di < len && line.charAt(di) == ' ');
 	    int last = len - 1;
 	    if (line.charAt(last) != '\r')
 	      ++last;
             value.append(line.substring(di, last));
           }
       }
   }

   private void addValue(String name, String value)
   {
     Header key = new Header(name);
     String old = (String) headers.get(key);
     if (old == null)
       {
         headers.put(key, value);
       }
     else
       {
         headers.put(key, old + ", " + value);
       }
   }

 }
	/* Headers.java --
	Copyright (C) 2004 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.http;

	import gnu.java.net.LineInputStream;

	import java.io.InputStream;
	import java.io.IOException;
	import java.text.DateFormat;
	import java.text.ParseException;
	import java.util.Collection;
	import java.util.Date;
	import java.util.Iterator;
	import java.util.LinkedHashMap;
	import java.util.LinkedHashSet;
	import java.util.Map;
	import java.util.Set;

	/**
	* A collection of HTTP header names and associated values.
	* Retrieval of values is case insensitive. An iteration over the keys
	* returns the header names in the order they were received.
	*
	* @author Chris Burdess (dog@gnu.org)
	*/
	public class Headers
	implements Map
	{

	static final DateFormat dateFormat = new HTTPDateFormat();

	static class Header
	{

	final String name;

	Header(String name)
	{
	if (name == null \|\| name.length() == 0)
	{
	throw new IllegalArgumentException(name);
	}
	this.name = name;
	}

	public int hashCode()
	{
	return name.toLowerCase().hashCode();
	}

	public boolean equals(Object other)
	{
	if (other instanceof Header)
	{
	return ((Header) other).name.equalsIgnoreCase(name);
	}
	return false;
	}

	public String toString()
	{
	return name;
	}

	}

	static class HeaderEntry
	implements Map.Entry
	{

	final Map.Entry entry;

	HeaderEntry(Map.Entry entry)
	{
	this.entry = entry;
	}

	public Object getKey()
	{
	return ((Header) entry.getKey()).name;
	}

	public Object getValue()
	{
	return entry.getValue();
	}

	public Object setValue(Object value)
	{
	return entry.setValue(value);
	}

	public int hashCode()
	{
	return entry.hashCode();
	}

	public boolean equals(Object other)
	{
	return entry.equals(other);
	}

	public String toString()
	{
	return getKey().toString() + "=" + getValue();
	}

	}

	private LinkedHashMap headers;

	public Headers()
	{
	headers = new LinkedHashMap();
	}

	public int size()
	{
	return headers.size();
	}

	public boolean isEmpty()
	{
	return headers.isEmpty();
	}

	public boolean containsKey(Object key)
	{
	return headers.containsKey(new Header((String) key));
	}

	public boolean containsValue(Object value)
	{
	return headers.containsValue(value);
	}

	public Object get(Object key)
	{
	return headers.get(new Header((String) key));
	}

	/**
	* Returns the value of the specified header as a string.
	*/
	public String getValue(String header)
	{
	return (String) headers.get(new Header(header));
	}

	/**
	* Returns the value of the specified header as an integer,
	* or -1 if the header is not present or not an integer.
	*/
	public int getIntValue(String header)
	{
	String val = getValue(header);
	if (val == null)
	{
	return -1;
	}
	try
	{
	return Integer.parseInt(val);
	}
	catch (NumberFormatException e)
	{
	}
	return -1;
	}

	/**
	* Returns the value of the specified header as a date,
	* or <code>null</code> if the header is not present or not a date.
	*/
	public Date getDateValue(String header)
	{
	String val = getValue(header);
	if (val == null)
	{
	return null;
	}
	try
	{
	return dateFormat.parse(val);
	}
	catch (ParseException e)
	{
	return null;
	}
	}

	public Object put(Object key, Object value)
	{
	return headers.put(new Header((String) key), value);
	}

	public Object remove(Object key)
	{
	return headers.remove(new Header((String) key));
	}

	public void putAll(Map t)
	{
	for (Iterator i = t.keySet().iterator(); i.hasNext(); )
	{
	String key = (String) i.next();
	String value = (String) t.get(key);
	headers.put(new Header(key), value);
	}
	}

	public void clear()
	{
	headers.clear();
	}

	public Set keySet()
	{
	Set keys = headers.keySet();
	Set ret = new LinkedHashSet();
	for (Iterator i = keys.iterator(); i.hasNext(); )
	{
	ret.add(((Header) i.next()).name);
	}
	return ret;
	}

	public Collection values()
	{
	return headers.values();
	}

	public Set entrySet()
	{
	Set entries = headers.entrySet();
	Set ret = new LinkedHashSet();
	for (Iterator i = entries.iterator(); i.hasNext(); )
	{
	Map.Entry entry = (Map.Entry) i.next();
	ret.add(new HeaderEntry(entry));
	}
	return ret;
	}

	public boolean equals(Object other)
	{
	return headers.equals(other);
	}

	public int hashCode()
	{
	return headers.hashCode();
	}

	/**
	* Parse the specified input stream, adding headers to this collection.
	*/
	public void parse(InputStream in)
	throws IOException
	{
	LineInputStream lin = (in instanceof LineInputStream) ?
	(LineInputStream) in : new LineInputStream(in);

	String name = null;
	StringBuffer value = new StringBuffer();
	while (true)
	{
	String line = lin.readLine();
	if (line == null)
	{
	if (name != null)
	{
	addValue(name, value.toString());
	}
	break;
	}
	int len = line.length();
	if (len < 2)
	{
	if (name != null)
	{
	addValue(name, value.toString());
	}
	break;
	}
	char c1 = line.charAt(0);
	if (c1 == ' ' \|\| c1 == '\t')
	{
	// Continuation
	int last = len - 1;
	if (line.charAt(last) != '\r')
	++last;
	value.append(line.substring(0, last));
	}
	else
	{
	if (name != null)
	{
	addValue(name, value.toString());
	}

	int di = line.indexOf(':');
	name = line.substring(0, di);
	value.setLength(0);
	do
	{
	di++;
	}
	while (di < len && line.charAt(di) == ' ');
	int last = len - 1;
	if (line.charAt(last) != '\r')
	++last;
	value.append(line.substring(di, last));
	}
	}
	}

	private void addValue(String name, String value)
	{
	Header key = new Header(name);
	String old = (String) headers.get(key);
	if (old == null)
	{
	headers.put(key, value);
	}
	else
	{
	headers.put(key, old + ", " + value);
	}
	}

	}