Coverage Report - com.jcabi.manifests.ServletMfs
 
Classes in this File Line Coverage Branch Coverage Complexity
ServletMfs
0%
0/9
0%
0/2
1.5
 
 1  
 /**
 2  
  * Copyright (c) 2012-2014, jcabi.com
 3  
  * All rights reserved.
 4  
  *
 5  
  * Redistribution and use in source and binary forms, with or without
 6  
  * modification, are permitted provided that the following conditions
 7  
  * are met: 1) Redistributions of source code must retain the above
 8  
  * copyright notice, this list of conditions and the following
 9  
  * disclaimer. 2) Redistributions in binary form must reproduce the above
 10  
  * copyright notice, this list of conditions and the following
 11  
  * disclaimer in the documentation and/or other materials provided
 12  
  * with the distribution. 3) Neither the name of the jcabi.com nor
 13  
  * the names of its contributors may be used to endorse or promote
 14  
  * products derived from this software without specific prior written
 15  
  * permission.
 16  
  *
 17  
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 18  
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
 19  
  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 20  
  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 21  
  * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 22  
  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 23  
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 24  
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 25  
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 26  
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 27  
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 28  
  * OF THE POSSIBILITY OF SUCH DAMAGE.
 29  
  */
 30  
 package com.jcabi.manifests;
 31  
 
 32  
 import com.jcabi.log.Logger;
 33  
 import java.io.IOException;
 34  
 import java.io.InputStream;
 35  
 import java.net.URL;
 36  
 import java.util.ArrayList;
 37  
 import java.util.Collection;
 38  
 import javax.servlet.ServletContext;
 39  
 
 40  
 /**
 41  
  * Manifests in servlet context.
 42  
  *
 43  
  * Append attributes from the web application {@code MANIFEST.MF}.
 44  
  *
 45  
  * <p>You can use this class in your own
 46  
  * {@link javax.servlet.Filter} or
 47  
  * {@link javax.servlet.ServletContextListener},
 48  
  * in order to inject {@code MANIFEST.MF} attributes to the class:
 49  
  *
 50  
  * <pre> Manifests.append(new ServletMfs(context));</pre>
 51  
  *
 52  
  * <p>The class is thread-safe.
 53  
  *
 54  
  * @author Yegor Bugayenko (yegor@tpc2.com)
 55  
  * @version $Id$
 56  
  * @since 1.0
 57  
  */
 58  
 public final class ServletMfs implements Mfs {
 59  
 
 60  
     /**
 61  
      * Servlet context.
 62  
      */
 63  
     private final transient ServletContext ctx;
 64  
 
 65  
     /**
 66  
      * Ctor.
 67  
      * @param context Context
 68  
      */
 69  0
     public ServletMfs(final ServletContext context) {
 70  0
         this.ctx = context;
 71  0
     }
 72  
 
 73  
     @Override
 74  
     public Collection<InputStream> fetch() throws IOException {
 75  0
         final URL main = this.ctx.getResource("/META-INF/MANIFEST.MF");
 76  0
         final Collection<InputStream> streams = new ArrayList<InputStream>(1);
 77  0
         if (main == null) {
 78  0
             Logger.warn(this, "MANIFEST.MF not found in WAR package");
 79  
         } else {
 80  0
             streams.add(main.openStream());
 81  
         }
 82  0
         return streams;
 83  
     }
 84  
 
 85  
 }