/** * 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.pdu;import java.net.InetAddress;import java.util.BitSet;import java.util.Vector;import net.sourceforge.jwap.util.BitArrayOutputStream;import net.sourceforge.jwap.wsp.CWSPSocketAddress;public class CWSPRedirect extends CWSPPDU {    /**     * Table 6     * section 8.2.2.3     */    public static final short FLAG_Permanent_Redirect = 0x80;    public static final short FLAG_Reuse_Security_Session = 0x40;    // uint8    private short flags = 0x00;    /**     * Redirect address(es)     * usage of CWSPAddress     */    private Vector addresses = new Vector();    public CWSPRedirect() {        super();        pduType = CWSPPDU.PDU_TYPE_REDIRECT;    }    public byte[] toByteArray() {        BitArrayOutputStream tmp = new BitArrayOutputStream();        BitArrayOutputStream result = new BitArrayOutputStream();        result.write(pduType, 8);        result.write(flags, 8);        if (!addresses.isEmpty()) {            for (int i = 0; i < addresses.size(); i++) {                tmp.reset();                CWSPAddress address = (CWSPAddress) addresses.elementAt(i);                result.write(address.getBytes());            }        }        return result.toByteArray();    }    /**     * set flag according to sect. 8.2.2.3     * @param short option the flag to set     *                     use constants in this class!     * @param boolean on_off switch on/off the flag     */    public void setFlag(short option, boolean on_off) {        if (on_off) {            if (!getFlag(option)) {                flags += option;            }        } else {            if (getFlag(option)) {                flags -= option;            }        }    }    /**     * is flag <code>option</code> set?     */    public boolean getFlag(short option) {        BitSet s = BitArrayOutputStream.getBitSet(getFlags());        return s.get((int) (Math.log(option) / Math.log(2)));    }    /**     * return all flags as an byte     */    public byte getFlags() {        BitArrayOutputStream m = new BitArrayOutputStream();        m.write(flags, 8);        byte[] b = m.toByteArray();        return b[0];    }    public void setFlags(short flags) {        this.flags = flags;    }    //public Vector getAddresses(){    //  return addresses;    //}    public InetAddress[] getInetAddresses() {        InetAddress[] result = new InetAddress[addresses.size()];        for (int i = 0; i < addresses.size(); i++) {            result[i] = ((CWSPAddress) (addresses.elementAt(i))).getInetAddress();        }        return result;    }    public CWSPSocketAddress[] getSocketAddresses() {        CWSPSocketAddress[] result = new CWSPSocketAddress[addresses.size()];        for (int i = 0; i < addresses.size(); i++) {            result[i] = ((CWSPAddress) (addresses.elementAt(i))).getSocketAddress();        }        return result;    }        /**     * adds a redirect address     * @return boolean true = added     *                 false = NOT added (already added)     */    public boolean addAddress(boolean bearerTypeIncluded,        boolean portNumberIncluded, short bearerType, int portNumber,        String bearerAddressToUse) {        CWSPAddress toAdd = new CWSPAddress(bearerTypeIncluded,                portNumberIncluded, bearerType, portNumber, bearerAddressToUse);        for (int i = 0; i < addresses.size(); i++) {            CWSPAddress search = (CWSPAddress) addresses.elementAt(i);            if (search.equals(toAdd)) {                return false;            }        }        addresses.add(toAdd);        return true;    }    /**     * removes a redirect address     * @return boolean true = removed     *                 false = address does not exist     */    public boolean removeAddress(boolean bearerTypeIncluded,        boolean portNumberIncluded, short bearerType, int portNumber,        String bearerAddressToUse) {        CWSPAddress toRemove = new CWSPAddress(bearerTypeIncluded,                portNumberIncluded, bearerType, portNumber, bearerAddressToUse);        for (int i = 0; i < addresses.size(); i++) {            CWSPAddress search = (CWSPAddress) addresses.elementAt(i);            if (search.equals(toRemove)) {                addresses.remove(search);                return true;            }        }        return false;    }    public void setAddresses(Vector v) {        addresses = v;    }}