org.linkedin.util-core/src/main/java/org/linkedin/util/io/resource/JarResource.java
@Override
  public ResourceInfo getInfo() throws IOException
  {
    // represents the root...
    if(_fullPath.equals(""))
    {
      return new StaticInfo(0, // root is a directory...
                            _jarResource.getInfo().getLastModified()); // last modified is the jar file itself!
    }

    JarFile contentJarFile = getContentJarFile();
    try
    {
      JarEntry jarEntry = contentJarFile.getJarEntry(_fullPath);

      if(jarEntry == null)
        throw new ResourceNotFoundException(toURI());

      return new StaticInfo(jarEntry.getSize(),
                            jarEntry.getTime());
    }
    finally
    {
      contentJarFile.close();
    }
  }
@Override
  public ResourceInfo getInfo() throws IOException
  {
    // represents the root...
    if(_fullPath.equals(""))
    {
      return new StaticInfo(0, // root is a directory...
                            _jarResource.getInfo().getLastModified()); // last modified is the jar file itself!
    }

    JarFile contentJarFile = getContentJarFile();
    try
    {
      JarEntry jarEntry = contentJarFile.getJarEntry(_fullPath);

      if(jarEntry == null)
        throw new ResourceNotFoundException(toURI());

      return new StaticInfo(jarEntry.getSize(),
                            jarEntry.getTime());
    }
    finally
    {
      contentJarFile.close();
    }
  }
@ Override public ResourceInfo getInfo ( ) throws IOException { // represents the root... if ( _fullPath . equals ( "" ) ) { return new StaticInfo ( 0 , // root is a directory... _jarResource . getInfo ( ) . getLastModified ( ) ) ; // last modified is the jar file itself! } JarFile contentJarFile = getContentJarFile ( ) ; try { JarEntry jarEntry = contentJarFile . getJarEntry ( _fullPath ) ; if ( jarEntry == null ) throw new ResourceNotFoundException ( toURI ( ) ) ; return new StaticInfo ( jarEntry . getSize ( ) , jarEntry . getTime ( ) ) ; } finally { contentJarFile . close ( ) ; } }
Efficiently returns all information about the resource.

@return information about this resource.
@throws IOException if cannot get information
Efficiently returns all information about the resource .