/** * 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.wsp.multipart;import net.sourceforge.jwap.util.Utils;import net.sourceforge.jwap.wsp.header.CodePage;import net.sourceforge.jwap.wsp.header.Encoding;import net.sourceforge.jwap.wsp.header.HeaderParseException;import net.sourceforge.jwap.wsp.header.WAPCodePage;import net.sourceforge.jwap.wsp.pdu.CWSPHeaders;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.util.Enumeration;/** * This class represents a Multipart Entry according to WAP-230-WSP. * * @author Michel Marti * */public class MultiPartEntry {    // Used for content-type encoding    private static WAPCodePage wapCodePage = WAPCodePage.getInstance();    private String contentType;    private byte[] data;    private CWSPHeaders headers;    private MultiPartEntry() {    }    /**     * Construct a Multipart Entry.     * @param contentType the content-type of the Multipart Entry     * @param codePage the codepage to use for header encoding or null to use     *   the default (WAP) codepage     * @param data the payload     */    public MultiPartEntry(String contentType, CodePage codePage, byte[] data) {        headers = (codePage == null) ? new CWSPHeaders()                                     : new CWSPHeaders(codePage);        this.contentType = contentType;        this.data = data;    }    /**     * Construct a Multipart Entry using the WAP codepage for header encoding.     * @param contentType the content-type of the Multipart Entry     * @param data the payload     */    public MultiPartEntry(String contentType, byte[] data) {        this(contentType, null, data);    }    /**     * Add a header to the Multipart Entry.     * @param key the header name     * @param value the header value     */    public void addHeader(String key, String value) {        headers.addHeader(key, value);    }    public Enumeration getHeaderNames() {        return headers.getHeaderNames();    }    public String getHeader(String key) {        return headers.getHeader(key);    }        public Enumeration getHeaders(String key) {        return headers.getHeaders(key);    }        public String getContentType() {        return contentType;    }    public byte[] getPayload() {      return data;      }        public byte[] getBytes() throws IOException, HeaderParseException {        ByteArrayOutputStream out = new ByteArrayOutputStream();        byte[] ct = wapCodePage.encode("content-type", contentType);        byte[] hd = headers.getBytes();        out.write(Encoding.uintVar(ct.length - 1 + hd.length)); // HeadersLen        out.write(Encoding.uintVar(data.length)); // DataLen        out.write(ct, 1, ct.length - 1); // Content-Type (without first octet)        out.write(hd);        out.write(data); // data        return out.toByteArray();    }    public String toString() {        StringBuffer sb = new StringBuffer();        sb.append("MultipartEntry[content-type:").append(contentType).append("]\n");        for (Enumeration e = headers.getHeaderNames(); e.hasMoreElements();) {            String key = (String) e.nextElement();            for (Enumeration e2 = headers.getHeaders(key);                    e2.hasMoreElements();) {                String val = (String) e2.nextElement();                sb.append("   ").append(key).append(':').append(val).append("\n");            }        }        sb.append(Utils.hexDump("   Data: ", data));        return sb.toString();    }}