pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/tls/SslKeyStore.java

   1 /*
   2  * Copyright (c) 2015 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 package org.opendaylight.protocol.pcep.impl.tls;
   9
  10 import java.io.File;
  11 import java.io.FileInputStream;
  12 import java.io.FileNotFoundException;
  13 import java.io.InputStream;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.impl.rev130627.PathType;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 public final class SslKeyStore {
  19
  20     private static final Logger LOG = LoggerFactory.getLogger(SslKeyStore.class);
  21
  22     private SslKeyStore() {
  23         throw new UnsupportedOperationException("Utility class shouldn't be instantiated");
  24     }
  25
  26     /**
  27      * InputStream instance of key - key location is on classpath or specific path
  28      *
  29      * @param filename
  30      *          keystore location
  31      * @param pathType
  32      *          keystore location type - "classpath" or "path"
  33      *
  34      * @return key as InputStream
  35      */
  36     public static InputStream asInputStream(final String filename, final PathType pathType) {
  37         InputStream in;
  38         switch (pathType) {
  39         case CLASSPATH:
  40             in = SslKeyStore.class.getResourceAsStream(filename);
  41             if (in == null) {
  42                 throw new IllegalStateException("KeyStore file not found: "
  43                         + filename);
  44             }
  45             break;
  46         case PATH:
  47             LOG.debug("Current dir using System: {}", System.getProperty("user.dir"));
  48             final File keystorefile = new File(filename);
  49             try {
  50                 in = new FileInputStream(keystorefile);
  51             } catch (FileNotFoundException e) {
  52                 throw new IllegalStateException("KeyStore file not found: "
  53                         + filename,e);
  54             }
  55             break;
  56         default:
  57             throw new IllegalArgumentException("Unknown path type: " + pathType);
  58         }
  59         return in;
  60     }
  61 }
  62