openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/core/SslKeyStore.java

   1 /*
   2  * Copyright (c) 2013 Pantheon Technologies s.r.o. 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.openflowjava.protocol.impl.core;
  10
  11 import java.io.File;
  12 import java.io.FileInputStream;
  13 import java.io.FileNotFoundException;
  14 import java.io.InputStream;
  15
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.config.rev140630.PathType;
  17 import org.slf4j.Logger;
  18 import org.slf4j.LoggerFactory;
  19
  20 /**
  21  * Class for storing keys
  22  *
  23  * @author michal.polkorab
  24  */
  25 public final class SslKeyStore {
  26
  27     private static final Logger LOGGER = LoggerFactory.getLogger(SslKeyStore.class);
  28
  29     private SslKeyStore() {
  30         throw new UnsupportedOperationException("Utility class shouldn't be instantiated");
  31     }
  32
  33     /**
  34      * InputStream instance of key - key location is on classpath
  35      * @param filename keystore location
  36      * @param pathType keystore location type - "classpath" or "path"
  37      *
  38      * @return key as InputStream
  39      */
  40     public static InputStream asInputStream(String filename, PathType pathType) {
  41         InputStream in;
  42         switch (pathType) {
  43         case CLASSPATH:
  44             in = SslKeyStore.class.getResourceAsStream(filename);
  45             if (in == null) {
  46                 throw new IllegalStateException("KeyStore file not found: "
  47                         + filename);
  48             }
  49             break;
  50         case PATH:
  51             LOGGER.debug("Current dir using System:"
  52                     + System.getProperty("user.dir"));
  53             File keystorefile = new File(filename);
  54             try {
  55                 in = new FileInputStream(keystorefile);
  56             } catch (FileNotFoundException e) {
  57                 throw new IllegalStateException("KeyStore file not found: "
  58                         + filename,e);
  59             }
  60             break;
  61         default:
  62             throw new IllegalArgumentException("Unknown path type: " + pathType);
  63         }
  64         return in;
  65     }
  66 }