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EndpointI.java

// **********************************************************************
//
// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************

package IceSSL;

final class EndpointI extends IceInternal.EndpointI
{
    final static short TYPE = 2;

    public
    EndpointI(Instance instance, String ho, int po, int ti, String conId, boolean co, boolean pub)
    {
      _instance = instance;
      _host = ho;
      _port = po;
      _timeout = ti;
      _connectionId = conId;
      _compress = co;
      _publish = pub;
      calcHashValue();
    }

    public
    EndpointI(Instance instance, String str)
    {
      _instance = instance;
      _host = null;
      _port = 0;
      _timeout = -1;
      _compress = false;
      _publish = true;

      String[] arr = str.split("[ \t\n\r]+");

      int i = 0;
      while(i < arr.length)
      {
          if(arr[i].length() == 0)
          {
            i++;
            continue;
          }

          String option = arr[i++];
          if(option.length() != 2 || option.charAt(0) != '-')
          {
            throw new Ice.EndpointParseException("ssl " + str);
          }

          String argument = null;
          if(i < arr.length && arr[i].charAt(0) != '-')
          {
            argument = arr[i++];
          }

          switch(option.charAt(1))
          {
            case 'h':
            {
                if(argument == null)
                {
                  throw new Ice.EndpointParseException("ssl " + str);
                }

                _host = argument;
                break;
            }

            case 'p':
            {
                if(argument == null)
                {
                  throw new Ice.EndpointParseException("ssl " + str);
                }

                try
                {
                  _port = Integer.parseInt(argument);
                }
                catch(NumberFormatException ex)
                {
                  throw new Ice.EndpointParseException("ssl " + str);
                }

                if(_port < 0 || _port > 65535)
                {
                  throw new Ice.EndpointParseException("ssl " + str);
                }

                break;
            }

            case 't':
            {
                if(argument == null)
                {
                  throw new Ice.EndpointParseException("ssl " + str);
                }

                try
                {
                  _timeout = Integer.parseInt(argument);
                }
                catch(NumberFormatException ex)
                {
                  throw new Ice.EndpointParseException("ssl " + str);
                }

                break;
            }

            case 'z':
            {
                if(argument != null)
                {
                  throw new Ice.EndpointParseException("ssl " + str);
                }

                _compress = true;
                break;
            }

            default:
            {
                throw new Ice.EndpointParseException("ssl " + str);
            }
          }
      }

      if(_host == null)
      {
          _host = _instance.defaultHost();
            if(_host == null)
            {
            _host = "0.0.0.0";
            }
      }
      else if(_host.equals("*"))
      {
          _host = "0.0.0.0";
      }

      calcHashValue();
    }

    public
    EndpointI(Instance instance, IceInternal.BasicStream s)
    {
      _instance = instance;
      s.startReadEncaps();
      _host = s.readString();
      _port = s.readInt();
      _timeout = s.readInt();
      _compress = s.readBool();
      s.endReadEncaps();
      _publish = true;
      calcHashValue();
    }

    //
    // Marshal the endpoint
    //
    public void
    streamWrite(IceInternal.BasicStream s)
    {
      s.writeShort(TYPE);
      s.startWriteEncaps();
      s.writeString(_host);
      s.writeInt(_port);
      s.writeInt(_timeout);
      s.writeBool(_compress);
      s.endWriteEncaps();
    }

    //
    // Convert the endpoint to its string form
    //
    public String
    _toString()
    {
      //
      // WARNING: Certain features, such as proxy validation in Glacier2,
      // depend on the format of proxy strings. Changes to toString() and
      // methods called to generate parts of the reference string could break
      // these features. Please review for all features that depend on the
      // format of proxyToString() before changing this and related code.
      //
      String s = "ssl -h " + _host + " -p " + _port;
      if(_timeout != -1)
      {
          s += " -t " + _timeout;
      }
      if(_compress)
      {
          s += " -z";
      }
      return s;
    }

    //
    // Return the endpoint type
    //
    public short
    type()
    {
      return TYPE;
    }

    //
    // Return the timeout for the endpoint in milliseconds. 0 means
    // non-blocking, -1 means no timeout.
    //
    public int
    timeout()
    {
      return _timeout;
    }

    //
    // Return a new endpoint with a different timeout value, provided
    // that timeouts are supported by the endpoint. Otherwise the same
    // endpoint is returned.
    //
    public IceInternal.EndpointI
    timeout(int timeout)
    {
      if(timeout == _timeout)
      {
          return this;
      }
      else
      {
          return new EndpointI(_instance, _host, _port, timeout, _connectionId, _compress, _publish);
      }
    }

    //
    // Return a new endpoint with a different connection id.
    //
    public IceInternal.EndpointI
    connectionId(String connectionId)
    {
      if(connectionId == _connectionId)
      {
          return this;
      }
      else
      {
          return new EndpointI(_instance, _host, _port, _timeout, connectionId, _compress, _publish);
      }
    }

    //
    // Return true if the endpoints support bzip2 compress, or false
    // otherwise.
    //
    public boolean
    compress()
    {
      return _compress;
    }

    //
    // Return a new endpoint with a different compression value,
    // provided that compression is supported by the
    // endpoint. Otherwise the same endpoint is returned.
    //
    public IceInternal.EndpointI
    compress(boolean compress)
    {
      if(compress == _compress)
      {
          return this;
      }
      else
      {
          return new EndpointI(_instance, _host, _port, _timeout, _connectionId, compress, _publish);
      }
    }

    //
    // Return true if the endpoint is datagram-based.
    //
    public boolean
    datagram()
    {
      return false;
    }

    //
    // Return true if the endpoint is secure.
    //
    public boolean
    secure()
    {
      return true;
    }

    //
    // Return true if the endpoint type is unknown.
    //
    public boolean
    unknown()
    {
      return false;
    }

    //
    // Return a client side transceiver for this endpoint, or null if a
    // transceiver can only be created by a connector.
    //
    public IceInternal.Transceiver
    clientTransceiver()
    {
      return null;
    }

    //
    // Return a server side transceiver for this endpoint, or null if a
    // transceiver can only be created by an acceptor. In case a
    // transceiver is created, this operation also returns a new
    // "effective" endpoint, which might differ from this endpoint,
    // for example, if a dynamic port number is assigned.
    //
    public IceInternal.Transceiver
    serverTransceiver(IceInternal.EndpointIHolder endpoint)
    {
      endpoint.value = this;
      return null;
    }

    //
    // Return a connector for this endpoint, or null if no connector
    // is available.
    //
    public IceInternal.Connector
    connector()
    {
      return new ConnectorI(_instance, _host, _port);
    }

    //
    // Return an acceptor for this endpoint, or null if no acceptors
    // is available. In case an acceptor is created, this operation
    // also returns a new "effective" endpoint, which might differ
    // from this endpoint, for example, if a dynamic port number is
    // assigned.
    //
    public IceInternal.Acceptor
    acceptor(IceInternal.EndpointIHolder endpoint, String adapterName)
    {
      AcceptorI p = new AcceptorI(_instance, adapterName, _host, _port);
      endpoint.value = new EndpointI(_instance, _host, p.effectivePort(), _timeout, _connectionId, _compress,
                               _publish);
      return p;
    }

    //
    // Expand endpoint out in to separate endpoints for each local
    // host if endpoint was configured with no host set. This
    // only applies for ObjectAdapter endpoints.
    //
    public java.util.ArrayList
    expand(boolean includeLoopback)
    {
        java.util.ArrayList<EndpointI> endps = new java.util.ArrayList<EndpointI>();
        if(_host.equals("0.0.0.0"))
        {
            java.util.ArrayList hosts = IceInternal.Network.getLocalHosts();
            java.util.Iterator iter = hosts.iterator();
            while(iter.hasNext())
            {
                String host = (String)iter.next();
            if(includeLoopback || hosts.size() == 1 || !host.equals("127.0.0.1"))
            {
                    endps.add(new EndpointI(_instance, host, _port, _timeout, _connectionId, _compress,
                                     hosts.size() == 1 || !host.equals("127.0.0.1")));
            }
            }
        }
        else
        {
            endps.add(this);
        }
        return endps;
    }

    //
    // Return whether endpoint should be published in proxies
    // created by Object Adapter.
    //
    public boolean
    publish()
    {
        return _publish;
    }

    //
    // Check whether the endpoint is equivalent to a specific
    // Transceiver or Acceptor
    //
    public boolean
    equivalent(IceInternal.Transceiver transceiver)
    {
      return false;
    }

    public boolean
    equivalent(IceInternal.Acceptor acceptor)
    {
      AcceptorI sslAcceptor = null;
      try
      {
          sslAcceptor = (AcceptorI)acceptor;
      }
      catch(ClassCastException ex)
      {
          return false;
      }
      return sslAcceptor.equivalent(_host, _port);
    }

    public int
    hashCode()
    {
      return _hashCode;
    }

    //
    // Compare endpoints for sorting purposes
    //
    public boolean
    equals(java.lang.Object obj)
    {
      return compareTo(obj) == 0;
    }

    public int
    compareTo(java.lang.Object obj) // From java.lang.Comparable
    {
      EndpointI p = null;

      try
      {
          p = (EndpointI)obj;
      }
      catch(ClassCastException ex)
      {
          return 1;
      }

      if(this == p)
      {
          return 0;
      }

      if(_port < p._port)
      {
          return -1;
      }
      else if(p._port < _port)
      {
          return 1;
      }

      if(!_connectionId.equals(p._connectionId))
      {
          return _connectionId.compareTo(p._connectionId);
      }

      if(_timeout < p._timeout)
      {
          return -1;
      }
      else if(p._timeout < _timeout)
      {
          return 1;
      }

      if(!_compress && p._compress)
      {
          return -1;
      }
      else if(!p._compress && _compress)
      {
          return 1;
      }

      if(!_host.equals(p._host))
      {
          //
          // We do the most time-consuming part of the comparison last.
          //
          java.net.InetSocketAddress laddr = null;
          try
          {
            laddr = IceInternal.Network.getAddress(_host, _port);
          }
          catch(Ice.DNSException ex)
          {
          }

          java.net.InetSocketAddress raddr = null;
          try
          {
            raddr = IceInternal.Network.getAddress(p._host, p._port);
          }
          catch(Ice.DNSException ex)
          {
          }

          if(laddr == null && raddr != null)
          {
            return -1;
          }
          else if(raddr == null && laddr != null)
          {
            return 1;
          }
          else if(laddr != null && raddr != null)
          {
            byte[] larr = laddr.getAddress().getAddress();
            byte[] rarr = raddr.getAddress().getAddress();
            assert(larr.length == rarr.length);
            for(int i = 0; i < larr.length; i++)
            {
                if(larr[i] < rarr[i])
                {
                  return -1;
                }
                else if(rarr[i] < larr[i])
                {
                  return 1;
                }
            }
          }
      }

      return 0;
    }

    private void
    calcHashValue()
    {
      try
      {
            java.net.InetAddress addr = java.net.InetAddress.getByName(_host);
          _hashCode = addr.getHostAddress().hashCode();
      }
      catch(java.net.UnknownHostException ex)
      {
          _hashCode = _host.hashCode();
      }
      _hashCode = 5 * _hashCode + _port;
      _hashCode = 5 * _hashCode + _timeout;
        _hashCode = 5 * _hashCode + _connectionId.hashCode();
      _hashCode = 5 * _hashCode + (_compress ? 1 : 0);
    }

    private Instance _instance;
    private String _host;
    private int _port;
    private int _timeout;
    private String _connectionId = "";
    private boolean _compress;
    private boolean _publish;
    private int _hashCode;
}

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