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   /*
    * Copyright 2012 The Netty Project
    *
    * The Netty Project 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:
    *
    *   https://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 io.netty.handler.codec.socksx.v5;
  
  import static io.netty.util.internal.ObjectUtil.checkNonEmpty;
  
  import io.netty.handler.codec.DecoderResult;
  import io.netty.util.internal.ObjectUtil;
  import io.netty.util.internal.StringUtil;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  /**
   * The default {@link Socks5InitialRequest}.
   */
  public class DefaultSocks5InitialRequest extends AbstractSocks5Message implements Socks5InitialRequest {
  
      private final List<Socks5AuthMethod> authMethods;
  
      public DefaultSocks5InitialRequest(Socks5AuthMethod... authMethods) {
          ObjectUtil.checkNotNull(authMethods, "authMethods");
  
          List<Socks5AuthMethod> list = new ArrayList<Socks5AuthMethod>(authMethods.length);
          for (Socks5AuthMethod m: authMethods) {
              if (m == null) {
                  break;
              }
              list.add(m);
          }
  
          this.authMethods = Collections.unmodifiableList(checkNonEmpty(list, "list"));
      }
  
      public DefaultSocks5InitialRequest(Iterable<Socks5AuthMethod> authMethods) {
          ObjectUtil.checkNotNull(authMethods, "authSchemes");
  
          List<Socks5AuthMethod> list = new ArrayList<Socks5AuthMethod>();
          for (Socks5AuthMethod m: authMethods) {
              if (m == null) {
                  break;
              }
              list.add(m);
          }
  
          this.authMethods = Collections.unmodifiableList(checkNonEmpty(list, "list"));
      }
  
      @Override
      public List<Socks5AuthMethod> authMethods() {
          return authMethods;
      }
  
      @Override
      public String toString() {
          StringBuilder buf = new StringBuilder(StringUtil.simpleClassName(this));
  
          DecoderResult decoderResult = decoderResult();
          if (!decoderResult.isSuccess()) {
              buf.append("(decoderResult: ");
              buf.append(decoderResult);
              buf.append(", authMethods: ");
          } else {
              buf.append("(authMethods: ");
          }
          buf.append(authMethods());
          buf.append(')');
  
          return buf.toString();
      }
  }