/** * JWAP - A Java Implementation of the WAP Protocols * Copyright (C) 2001-2004 Niko Bender * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */package net.sourceforge.jwap;import java.io.ByteArrayInputStream;import java.io.InputStream;import java.util.Enumeration;import java.util.Vector;import net.sourceforge.jwap.util.TransTable;import net.sourceforge.jwap.wsp.CWSPResult;import net.sourceforge.jwap.wsp.pdu.CWSPHeaders;/** * This class represents a Response on a WSP GET or POST request * @see net.sourceforge.jwap.WAPClient#execute(Request) * @author Michel Marti */public class Response{    private static final Enumeration EMPTY_ENUM = new Vector().elements();    private int status;    private byte[] responseBody;    private CWSPHeaders headers;    private String contentType;    private static TransTable codes = TransTable.getTable("http-status-codes");    Response(CWSPResult result) {        status = result.getStatus();        responseBody = result.getPayload();        headers = result.getHeaders();        contentType = result.getContentType();    }    /*     * Returns the HTTP status code     */    public int getStatus() {        return status;    }    /**     * Returns the status-text corresponding to the response-status, e.g.     * for status-code 200 this method returns "OK".     */    public String getStatusText() {        String ret = codes.code2str(getStatus());        if( ret == null ) {            ret = "Unknown";        }        return ret;    }    /**     * Determine if the response status signals success (HTTP 2xx).     */    public boolean isSuccess() {        return ( status >= 200 && status < 300);    }    /*     * Returns the response-body     */    public byte[] getResponseBody() {        return responseBody;    }    /**     * Returns the response-body as input stream     */    public InputStream getResponseBodyAsInputStream() {        return new ByteArrayInputStream(responseBody==null?new byte[0]:responseBody);    }    /**     * Get the value of a response-header     * @param name the header name     * @return the header value or null if not present     */    public String getHeader(String name) {        return headers==null?null:headers.getHeader(name);    }    /**     * Get a list of all header names for this response.     * @return an enumeration of Strings     */    public Enumeration getHeaderNames() {        return headers==null?EMPTY_ENUM:headers.getHeaderNames();    }    /**     * Get a list of all values for a header     * @param header the header name     * @return an enumeration of strings     */    public Enumeration getHeaders(String header) {        return headers==null?EMPTY_ENUM:headers.getHeaders(header);    }    /**     * Get the response content-type     */    public String getContentType() {        return contentType;    }    /**     * Get the response content-length     */    public long getContentLength() {        String cl = getHeader("content-length");        return cl==null?0:Long.parseLong(cl);    }    public String toString() {          StringBuffer buf = new StringBuffer();          buf.append("Status          : ").append(getStatus()).append(" - ").append(getStatusText());          buf.append("\nContentType     : ").append(getContentType());          buf.append("\nContentLength   : ").append(getContentLength());          buf.append("\nHeaders         :");          for (Enumeration enum1=getHeaderNames(); enum1.hasMoreElements(); ){                String key = (String)enum1.nextElement();                buf.append("\n   ").append(key).append(": ").append(getHeader(key));          }          return buf.toString();     }}