opendaylight/netconf/netconf-impl/src/main/java/org/opendaylight/controller/netconf/impl/util/AdditionalHeaderUtil.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.netconf.impl.util;
  10
  11 import java.util.regex.Matcher;
  12 import java.util.regex.Pattern;
  13
  14 import org.opendaylight.controller.netconf.impl.NetconfServerSessionNegotiator.AdditionalHeader;
  15
  16 import com.google.common.base.Preconditions;
  17
  18 public class AdditionalHeaderUtil {
  19
  20     private static final Pattern pattern = Pattern
  21             .compile("\\[(?<username>[^;]+);(?<address>[0-9\\.]+)[:/](?<port>[0-9]+);(?<transport>[a-z]+)[^\\]]+\\]");
  22     private static final Pattern customHeaderPattern = Pattern
  23             .compile("\\[(?<username>[^;]+);(?<address>[0-9\\.]+)[:/](?<port>[0-9]+);(?<transport>[a-z]+);(?<sessionIdentifier>[a-z]+)[^\\]]+\\]");
  24
  25     public static AdditionalHeader fromString(String additionalHeader) {
  26         additionalHeader = additionalHeader.trim();
  27         Matcher matcher = pattern.matcher(additionalHeader);
  28         Matcher matcher2 = customHeaderPattern.matcher(additionalHeader);
  29         Preconditions.checkArgument(matcher.matches(), "Additional header in wrong format %s, expected %s",
  30                 additionalHeader, pattern);
  31         String username = matcher.group("username");
  32         String address = matcher.group("address");
  33         String transport = matcher.group("transport");
  34         String sessionIdentifier = "client";
  35         if (matcher2.matches()) {
  36             sessionIdentifier = matcher2.group("sessionIdentifier");
  37         }
  38         return new AdditionalHeader(username, address, transport, sessionIdentifier);
  39     }
  40
  41 }