lib/go/thrift/ttransport_exception.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package thrift

import (
  "os"
)

/**
 * Transport exceptions.
 *
 */
type TTransportException interface {
  TException
  TypeId() int
}

const (
  UNKNOWN_TRANSPORT_EXCEPTION = 0
  NOT_OPEN                    = 1
  ALREADY_OPEN                = 2
  TIMED_OUT                   = 3
  END_OF_FILE                 = 4
)

type tTransportException struct {
  typeId  int
  message string
}

func (p *tTransportException) TypeId() int {
  return p.typeId
}

func (p *tTransportException) String() string {
  return p.message
}

func NewTTransportExceptionDefault() TTransportException {
  return NewTTransportExceptionDefaultType(UNKNOWN_TRANSPORT_EXCEPTION)
}

func NewTTransportExceptionDefaultType(t int) TTransportException {
  return NewTTransportException(t, "")
}

func NewTTransportExceptionDefaultString(m string) TTransportException {
  return NewTTransportException(UNKNOWN_TRANSPORT_EXCEPTION, m)
}

func NewTTransportException(t int, m string) TTransportException {
  return &tTransportException{typeId: t, message: m}
}

func NewTTransportExceptionFromOsError(e os.Error) TTransportException {
  if e == nil {
    return nil
  }
  t, ok := e.(TTransportException)
  if ok {
    return t
  }
  if e == os.EOF {
    return NewTTransportException(END_OF_FILE, e.String())
  }
  return NewTTransportExceptionDefaultString(e.String())
}