Abstracted the HTTP server with TCP Network classes and added an SSDP service

This commit is contained in:
Ziver Koc 2010-01-31 18:10:00 +00:00
parent b3ad292ff9
commit 45f514fc27
25 changed files with 1645 additions and 688 deletions

View file

@ -0,0 +1,237 @@
package zutil.network.http;
import java.io.BufferedReader;
import java.io.IOException;
import java.util.HashMap;
import java.util.Scanner;
import java.util.regex.Pattern;
public class HTTPHeaderParser {
// Some Cached regexes
private static final Pattern colonPattern = Pattern.compile(":");
private static final Pattern equalPattern = Pattern.compile("=");
private static final Pattern andPattern = Pattern.compile("&");
private static final Pattern semiColonPattern = Pattern.compile(";");
// HTTP info
private String type;
private String url;
private HashMap<String, String> url_attr;
private float version;
// params
private HashMap<String, String> attributes;
private HashMap<String, String> cookies;
/**
* Parses the HTTP header information from the stream
*
* @param in is the stream
* @throws IOException
*/
public HTTPHeaderParser(BufferedReader in) throws IOException{
url_attr = new HashMap<String, String>();
attributes = new HashMap<String, String>();
cookies = new HashMap<String, String>();
String tmp = null;
if( (tmp=in.readLine()) != null && !tmp.isEmpty() ){
parseStartLine( tmp );
while( (tmp=in.readLine()) != null && !tmp.isEmpty() ){
parseLine( tmp );
}
}
parseCookies();
}
/**
* Parses the HTTP header information from an String
*
* @param in is the string
*/
public HTTPHeaderParser(String in){
url_attr = new HashMap<String, String>();
attributes = new HashMap<String, String>();
cookies = new HashMap<String, String>();
Scanner sc = new Scanner(in);
sc.useDelimiter("\n");
String tmp = null;
if( sc.hasNext() && !(tmp=sc.next()).isEmpty() ){
parseStartLine( tmp );
while( sc.hasNext() && !(tmp=sc.next()).isEmpty() ){
parseLine( tmp );
}
}
parseCookies();
}
/**
* Parses the first header line and ads the values to
* the map and returns the file name and path
*
* @param header The header String
* @param map The HashMap to put the variables to
* @return The path and file name as a String
*/
protected void parseStartLine(String line){
type = (line.substring(0, line.indexOf(" "))).trim();
version = Float.parseFloat( line.substring(line.lastIndexOf("HTTP/")+5 , line.length()).trim() );
line = (line.substring(type.length()+1, line.lastIndexOf("HTTP/"))).trim();
// parse URL and attributes
if(line.indexOf('?') > -1){
url = line.substring(0, line.indexOf('?'));
line = line.substring(line.indexOf('?')+1, line.length());
parseUrlAttributes(line, url_attr);
}
else{
url = line;
}
}
/**
* Parses a String with variables from a get or post
* that was sent from a client and puts the data into a HashMap
*
* @param header is the String containing all the attributes
* @param map is the HashMap to put all the values into
*/
public static void parseUrlAttributes(String attributes, HashMap<String, String> map){
String[] tmp;
// get the variables
String[] data = andPattern.split( attributes );
for(String element : data){
tmp = equalPattern.split(element, 2);
map.put(
tmp[0].trim(), // Key
(tmp.length>1 ? tmp[1] : "").trim()); //Value
}
}
/**
* Parses the rest of the header
*
* @param line is the next line in the header
*/
protected void parseLine(String line){
String[] data = colonPattern.split( line, 2 );
attributes.put(
data[0].trim().toUpperCase(), // Key
(data.length>1 ? data[1] : "").trim()); //Value
}
/**
* Parses the attribute "Cookie" and returns a HashMap
* with the values
*
* @return a HashMap with cookie values
*/
protected void parseCookies(){
if( attributes.containsKey("COOKIE") ){
String[] tmp = semiColonPattern.split( attributes.get("COOKIE") );
String[] tmp2;
for(String cookie : tmp){
tmp2 = equalPattern.split(cookie, 2);
cookies.put(
tmp2[0].trim(), // Key
(tmp2.length>1 ? tmp2[1] : "").trim()); //Value
}
}
}
/**
* @return the HTTP message type( ex. GET,POST...)
*/
public String getRequestType(){
return type;
}
/**
* @return the HTTP version of this header
*/
public float getHTTPVersion(){
return version;
}
/**
* @return the URL that the client sent the server
*/
public String getRequestURL(){
return url;
}
/**
* Returns the URL attribute value of the given name,
* returns null if there is no such attribute
*/
public String getURLAttribute(String name){
return url_attr.get( name );
}
/**
* Returns the HTTP attribute value of the given name,
* returns null if there is no such attribute
*/
public String getHTTPAttribute(String name){
return attributes.get( name.toUpperCase() );
}
/**
* Returns the cookie value of the given name,
* returns null if there is no such attribute
*/
public String getCookie(String name){
return cookies.get( name );
}
/**
* @return athe parsed cookies
*/
public HashMap<String, String> getCookies(){
return cookies;
}
/**
* @return the parsed URL values
*/
public HashMap<String, String> getURLAttributes(){
return url_attr;
}
/**
* @return the parsed header attributes
*/
public HashMap<String, String> getAttributes(){
return attributes;
}
public String toString(){
StringBuffer tmp = new StringBuffer();
tmp.append("\nType: ");
tmp.append(type);
tmp.append("\nHTTP Version: HTTP/");
tmp.append(version);
tmp.append("\nURL: ");
tmp.append(url);
for( String key : url_attr.keySet() ){
tmp.append("\nURL Attr: ");
tmp.append(key);
tmp.append("=");
tmp.append( url_attr.get(key) );
}
for( String key : attributes.keySet() ){
tmp.append("\nHTTP Attr: ");
tmp.append(key);
tmp.append("=");
tmp.append( attributes.get(key) );
}
for( String key : cookies.keySet() ){
tmp.append("\nCookie: ");
tmp.append(key);
tmp.append("=");
tmp.append( cookies.get(key) );
}
return tmp.toString();
}
}

View file

@ -11,17 +11,51 @@ import java.util.HashMap;
* @author Ziver
*
*/
public class HttpPrintStream extends PrintStream{
private Integer status_code;
private HashMap<String, String> header;
private HashMap<String, String> cookie;
private StringBuffer buffer;
private boolean buffer_enabled;
public class HttpPrintStream extends PrintStream{
// Defines the type of message
public enum HTTPMessageType{
REQUEST,
RESPONSE
}
// This defines the type of message that will be generated
private HTTPMessageType message_type;
// The status code of the message, ONLY for response
private Integer res_status_code;
// The request type of the message ONLY for request
private String req_type;
// The requesting url ONLY for request
private String req_url;
// An Map of all the header values
private HashMap<String, String> header;
// An Map of all the cookies
private HashMap<String, String> cookie;
// The buffered header
private StringBuffer buffer;
// If the header buffering is enabled
private boolean buffer_enabled;
/**
* Creates an new instance of HttpPrintStream with
* message type of RESPONSE and buffering disabled.
*
* @param out is the OutputStream to send the message
*/
public HttpPrintStream(OutputStream out) {
this( out, HTTPMessageType.RESPONSE );
}
/**
* Creates an new instance of HttpPrintStream with
* message type buffering disabled.
*
* @param out is the OutputStream to send the message
* @param type is the type of message
*/
public HttpPrintStream(OutputStream out, HTTPMessageType type) {
super(out);
status_code = 0;
this.message_type = type;
res_status_code = 0;
header = new HashMap<String, String>();
cookie = new HashMap<String, String>();
buffer = new StringBuffer();
@ -49,9 +83,9 @@ public class HttpPrintStream extends PrintStream{
* @param value is the value of the cookie
* @throws Exception Throws exception if the header has already been sent
*/
public void setCookie(String key, String value) throws Exception{
public void setCookie(String key, String value) throws RuntimeException{
if(cookie == null)
throw new Exception("Header already sent!!!");
throw new RuntimeException("Header already sent!!!");
cookie.put(key, value);
}
@ -62,22 +96,51 @@ public class HttpPrintStream extends PrintStream{
* @param value is the value of the header
* @throws Exception Throws exception if the header has already been sent
*/
public void setHeader(String key, String value) throws Exception{
public void setHeader(String key, String value) throws RuntimeException{
if(header == null)
throw new Exception("Header already sent!!!");
throw new RuntimeException("Header already sent!!!");
header.put(key, value);
}
/**
* Sets the return status code
* Sets the status code of the message, ONLY available in HTTP RESPONSE
*
* @param code the code from 100 up to 599
* @throws Exception Throws exception if the header has already been sent
* @throws RuntimeException if the header has already been sent or the message type is wrong
*/
public void setStatusCode(int code) throws Exception{
if(status_code == null)
throw new Exception("Header already sent!!!");
status_code = code;
public void setStatusCode(int code) throws RuntimeException{
if( res_status_code == null )
throw new RuntimeException("Header already sent!!!");
if( message_type != HTTPMessageType.RESPONSE )
throw new RuntimeException("Status Code is only available in HTTP RESPONSE!!!");
res_status_code = code;
}
/**
* Sets the request type of the message, ONLY available in HTTP REQUEST
*
* @param req_type is the type of the message, e.g. GET, POST...
* @throws RuntimeException if the header has already been sent or the message type is wrong
*/
public void setRequestType(String req_type) throws RuntimeException{
if( req_type == null )
throw new RuntimeException("Header already sent!!!");
if( message_type != HTTPMessageType.REQUEST )
throw new RuntimeException("Request Message Type is only available in HTTP REQUEST!!!");
this.req_type = req_type;
}
/**
* Sets the requesting URL of the message, ONLY available in HTTP REQUEST
*
* @param req_url is the URL
* @throws RuntimeException if the header has already been sent or the message type is wrong
*/
public void setRequestURL(String req_url) throws RuntimeException{
if( req_url == null )
throw new RuntimeException("Header already sent!!!");
if( message_type != HTTPMessageType.REQUEST )
throw new RuntimeException("Request URL is only available in HTTP REQUEST!!!");
this.req_url = req_url;
}
/**
@ -102,10 +165,15 @@ public class HttpPrintStream extends PrintStream{
buffer.append(s);
}
else{
if(status_code != null){
super.print("HTTP/1.0 "+status_code+" "+getStatusString(status_code));
if(res_status_code != null){
if( message_type==HTTPMessageType.REQUEST )
super.print(req_type+" "+req_url+" HTTP/1.1");
else
super.print("HTTP/1.1 "+res_status_code+" "+getStatusString(res_status_code));
super.println();
status_code = null;
res_status_code = null;
req_type = null;
req_url = null;
}
if(header != null){
for(String key : header.keySet()){
@ -115,9 +183,20 @@ public class HttpPrintStream extends PrintStream{
header = null;
}
if(cookie != null){
for(String key : cookie.keySet()){
super.print("Set-Cookie: "+key+"="+cookie.get(key)+";");
super.println();
if( !cookie.isEmpty() ){
if( message_type==HTTPMessageType.REQUEST ){
super.print("Cookie: ");
for(String key : cookie.keySet()){
super.print(key+"="+cookie.get(key)+"; ");
}
super.println();
}
else{
for(String key : cookie.keySet()){
super.print("Set-Cookie: "+key+"="+cookie.get(key)+";");
super.println();
}
}
}
super.println();
cookie = null;
@ -136,7 +215,7 @@ public class HttpPrintStream extends PrintStream{
buffer.delete(0, buffer.length());
buffer_enabled = true;
}
else if(status_code != null || header != null || cookie != null){
else if(res_status_code != null || header != null || cookie != null){
printOrBuffer("");
}
super.flush();
@ -165,7 +244,7 @@ public class HttpPrintStream extends PrintStream{
public void print(int x){ printOrBuffer(String.valueOf(x));}
public void print(long x){ printOrBuffer(String.valueOf(x));}
public void print(Object x){ printOrBuffer(String.valueOf(x));}
/*
public void write(int b) { print((char)b);}
public void write(byte buf[], int off, int len){

View file

@ -4,22 +4,16 @@ import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.cert.CertificateException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Timer;
import java.util.TimerTask;
import java.util.regex.Pattern;
import javax.net.ssl.SSLServerSocketFactory;
import zutil.MultiPrintStream;
import zutil.network.threaded.ThreadedTCPNetworkServer;
import zutil.network.threaded.ThreadedTCPNetworkServerThread;
/**
@ -28,7 +22,7 @@ import zutil.MultiPrintStream;
*
* @author Ziver
*/
public class HttpServer extends Thread{
public class HttpServer extends ThreadedTCPNetworkServer{
public static final boolean DEBUG = false;
public static final String SERVER_VERSION = "StaticInt HttpServer 1.0";
public static final int COOKIE_TTL = 200;
@ -36,8 +30,6 @@ public class HttpServer extends Thread{
public final String server_url;
public final int server_port;
private File keyStore;
private String keyStorePass;
private HashMap<String,HttpPage> pages;
private HttpPage defaultPage;
@ -64,10 +56,9 @@ public class HttpServer extends Thread{
* @param sslCert If this is not null then the server will use a SSL connection with the given certificate
*/
public HttpServer(String url, int port, File keyStore, String keyStorePass){
super( port, keyStore, keyStorePass );
this.server_url = url;
this.server_port = port;
this.keyStorePass = keyStorePass;
this.keyStore = keyStore;
pages = new HashMap<String,HttpPage>();
sessions = Collections.synchronizedMap(new HashMap<String,Map<String,Object>>());
@ -75,6 +66,8 @@ public class HttpServer extends Thread{
Timer timer = new Timer();
timer.schedule(new GarbageCollector(), 0, SESSION_TTL / 2);
MultiPrintStream.out.println("HTTP"+(keyStore==null?"":"S")+" Server ready!");
}
/**
@ -119,49 +112,13 @@ public class HttpServer extends Thread{
defaultPage = page;
}
public void run(){
try{
ServerSocket ss;
if(keyStorePass != null && keyStore != null){
registerCertificate(keyStore, keyStorePass);
ss = initSSL(server_port);
MultiPrintStream.out.println("Https Server Running!!!");
}
else{
ss = new ServerSocket(server_port);
MultiPrintStream.out.println("Http Server Running!!!");
}
while(true){
new HttpServerThread(ss.accept());
}
} catch (Exception e) {
e.printStackTrace();
protected ThreadedTCPNetworkServerThread getThreadInstance( Socket s ){
try {
return new HttpServerThread( s );
} catch (IOException e) {
e.printStackTrace( MultiPrintStream.out );
}
}
/**
* Initiates a SSLServerSocket
*
* @param port The port to listen to
* @return The SSLServerSocket
* @throws IOException
*/
private ServerSocket initSSL(int port) throws IOException{
SSLServerSocketFactory sslserversocketfactory =
(SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
return sslserversocketfactory.createServerSocket(port);
}
/**
* Registers the given cert file to the KeyStore
*
* @param certFile The cert file
*/
protected void registerCertificate(File keyStore, String keyStorePass) throws CertificateException, IOException, KeyStoreException, NoSuchProviderException, NoSuchAlgorithmException{
System.setProperty("javax.net.ssl.keyStore", keyStore.getAbsolutePath());
System.setProperty("javax.net.ssl.keyStorePassword", keyStorePass);
return null;
}
/**
@ -170,7 +127,7 @@ public class HttpServer extends Thread{
* @author Ziver
*
*/
class HttpServerThread extends Thread{
protected class HttpServerThread implements ThreadedTCPNetworkServerThread{
private HttpPrintStream out;
private BufferedReader in;
private Socket socket;
@ -179,16 +136,11 @@ public class HttpServer extends Thread{
out = new HttpPrintStream(socket.getOutputStream());
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
this.socket = socket;
start();
if(DEBUG)MultiPrintStream.out.println("New Connection!!! "+socket.getInetAddress().getHostName());
if(DEBUG) MultiPrintStream.out.println("New Connection!!! "+socket.getInetAddress().getHostName());
}
public void run(){
String tmp = null;
String[] tmpArray, tmpArray2;
Pattern colonPattern = Pattern.compile(":");
Pattern semiColonPattern = Pattern.compile(";");
Pattern equalPattern = Pattern.compile("=");
String page_url = "";
HashMap<String,String> client_info = new HashMap<String,String>();
@ -197,45 +149,19 @@ public class HttpServer extends Thread{
//**************************** REQUEST *********************************
try {
if(DEBUG)MultiPrintStream.out.println("Reciving Http Request!!!");
while((tmp=in.readLine()) != null && !tmp.isEmpty()){
//System.err.println(tmp);
//*********** Handling Get variables
if(tmp.startsWith("GET")){
// Gets the file URL and get values
tmp = (tmp.substring(5, tmp.indexOf("HTTP/"))).trim();
page_url = parseHttpHeader(tmp, request);
}
//********* Handling Post variable data
else if(tmp.startsWith("POST")){
// Gets the file URL and get values
tmp = (tmp.substring(6, tmp.indexOf("HTTP/"))).trim();
page_url = parseHttpHeader(tmp, request);
}
//********* Handling Cookies
else if(tmp.startsWith("Cookie")){
tmp = colonPattern.split(tmp)[1];
tmpArray = semiColonPattern.split(tmp);
for(String e : tmpArray){
tmpArray2 = equalPattern.split(e);
cookie.put(
tmpArray2[0].trim(), // Key
(tmpArray2.length>1 ? tmpArray2[1] : "").trim()); //Value
}
}
//********* Handling Client info
else{
tmpArray = colonPattern.split(tmp);
client_info.put(
tmpArray[0].trim(), // Key
(tmpArray.length>1 ? tmpArray[1] : "").trim()); //Value
}
}
if(DEBUG) MultiPrintStream.out.println("Reciving Http Request!!!");
HTTPHeaderParser parser = new HTTPHeaderParser(in);
if(DEBUG) MultiPrintStream.out.println(parser);
client_info = parser.getAttributes();
request = parser.getURLAttributes();
cookie = parser.getCookies();
//******* Read in the post data if available
if(client_info.containsKey("Content-Length")){
if( parser.getHTTPAttribute("Content-Length")!=null ){
// Reads the post data size
tmp = client_info.get("Content-Length");
tmp = parser.getHTTPAttribute("Content-Length");
int post_data_length = Integer.parseInt( tmp );
// read the data
StringBuffer tmpb = new StringBuffer();
@ -244,19 +170,20 @@ public class HttpServer extends Thread{
tmpb.append((char)in.read());
}
if(client_info.get("Content-Type").contains("application/x-www-form-urlencoded")){
tmp = parser.getHTTPAttribute("Content-Type");
if( tmp.contains("application/x-www-form-urlencoded") ){
// get the variables
parseVariables(tmpb.toString(), request);
HTTPHeaderParser.parseUrlAttributes( tmpb.toString(), request );
}
else if(client_info.get("Content-Type").contains("application/soap+xml") ||
client_info.get("Content-Type").contains("text/xml") ||
client_info.get("Content-Type").contains("text/plain")){
else if( tmp.contains("application/soap+xml" ) ||
tmp.contains("text/xml") ||
tmp.contains("text/plain") ){
// save the variables
request.put("" , tmpb.toString());
request.put( "" , tmpb.toString() );
}
else if(client_info.get("Content-Type").contains("multipart/form-data")){
else if( tmp.contains("multipart/form-data") ){
// TODO: File upload
throw new Exception("\"multipart-form-data\" Not implemented!!!");
throw new Exception( "\"multipart-form-data\" Not implemented!!!" );
}
}
@ -264,118 +191,71 @@ public class HttpServer extends Thread{
// Get the client session or create one
Map<String, Object> client_session;
long ttl_time = System.currentTimeMillis()+SESSION_TTL;
if(cookie.containsKey("session_id") && sessions.containsKey(cookie.get("session_id"))){
client_session = sessions.get(cookie.get("session_id"));
if( cookie.containsKey("session_id") && sessions.containsKey(cookie.get("session_id")) ){
client_session = sessions.get( cookie.get("session_id") );
// Check if session is still valid
if((Long)client_session.get("ttl") < System.currentTimeMillis()){
if( (Long)client_session.get("ttl") < System.currentTimeMillis() ){
int session_id = (Integer)client_session.get("session_id");
client_session = Collections.synchronizedMap(new HashMap<String, Object>());
client_session.put("session_id", session_id);
sessions.put(""+session_id, client_session);
client_session.put( "session_id", session_id);
sessions.put( ""+session_id, client_session);
}
// renew the session TTL
client_session.put("ttl", ttl_time);
client_session.put( "ttl", ttl_time );
}
else{
client_session = Collections.synchronizedMap(new HashMap<String, Object>());
client_session.put("session_id", nextSessionId);
client_session.put("ttl", ttl_time);
sessions.put(""+nextSessionId, client_session);
client_session.put( "session_id", nextSessionId );
client_session.put( "ttl", ttl_time );
sessions.put( ""+nextSessionId, client_session );
nextSessionId++;
}
// Debug
if(DEBUG){
MultiPrintStream.out.println("# page_url: "+page_url);
MultiPrintStream.out.println("# cookie: "+cookie);
MultiPrintStream.out.println("# client_session: "+client_session);
MultiPrintStream.out.println("# client_info: "+client_info);
MultiPrintStream.out.println("# request: "+request);
MultiPrintStream.out.println( "# page_url: "+page_url );
MultiPrintStream.out.println( "# cookie: "+cookie );
MultiPrintStream.out.println( "# client_session: "+client_session );
MultiPrintStream.out.println( "# client_info: "+client_info );
MultiPrintStream.out.println( "# request: "+request );
}
//**************************** RESPONSE ************************************
if(DEBUG)MultiPrintStream.out.println("Sending Http Response!!!");
if(DEBUG) MultiPrintStream.out.println("Sending Http Response!!!");
out.setStatusCode(200);
out.setHeader("Server", SERVER_VERSION);
out.setHeader("Content-Type", "text/html");
out.setCookie("session_id", ""+client_session.get("session_id"));
out.setHeader( "Server", SERVER_VERSION );
out.setHeader( "Content-Type", "text/html" );
out.setCookie( "session_id", ""+client_session.get("session_id") );
if(!page_url.isEmpty() && pages.containsKey(page_url)){
if( !page_url.isEmpty() && pages.containsKey(page_url) ){
pages.get(page_url).respond(out, client_info, client_session, cookie, request);
}
else if(defaultPage != null){
else if( defaultPage != null ){
defaultPage.respond(out, client_info, client_session, cookie, request);
}
else{
out.setStatusCode(404);
out.println("404 Page Not Found");
out.setStatusCode( 404 );
out.println( "404 Page Not Found" );
}
//********************************************************************************
} catch (Exception e) {
e.printStackTrace(MultiPrintStream.out);
e.printStackTrace( MultiPrintStream.out );
try {
out.setStatusCode(500);
out.setStatusCode( 500 );
} catch (Exception e1) {}
if(e.getMessage() != null)
out.println("500 Internal Server Error(Header: "+tmp+"): "+e.getMessage());
out.println( "500 Internal Server Error: "+e.getMessage() );
else{
out.println("500 Internal Server Error(Header: "+tmp+"): "+e.getCause().getMessage());
out.println( "500 Internal Server Error: "+e.getCause().getMessage() );
}
}
try{
if(DEBUG)MultiPrintStream.out.println("Conection Closed!!!");
if(DEBUG) MultiPrintStream.out.println("Conection Closed!!!");
out.close();
in.close();
socket.close();
} catch (Exception e) {
e.printStackTrace(MultiPrintStream.out);
}
}
}
/**
* Parses the first header line and ads the values to
* the map and returns the file name and path
*
* @param header The header String
* @param map The HashMap to put the variables to
* @return The path and file name as a String
*/
private String parseHttpHeader(String header, HashMap<String, String> map){
String page_url = "";
// cut out the page name
if(header.indexOf('?') > -1){
page_url = header.substring(0, header.indexOf('?'));
header = header.substring(header.indexOf('?')+1, header.length());
parseVariables(header, map);
}
else{
page_url = header;
}
return page_url;
}
/**
* Parses a String with variables from a get or post
* from a client and puts the data into a HashMap
*
* @param header A String with all the variables
* @param map The HashMap to put all the variables into
*/
private void parseVariables(String header, HashMap<String, String> map){
int tmp;
// get the variables
String[] data = header.split("&");
for(String element : data){
tmp = element.indexOf('=');
if(tmp > 0){
map.put(
element.substring(0, tmp ).trim(), // Key
element.substring(tmp+1, element.length() ).trim() ); //Value
}
else{
map.put(element, "");
} catch( Exception e ) {
e.printStackTrace( MultiPrintStream.out );
}
}
}