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Allow openFileURLStream(URL) to open jars 

This is related to #23020. There are some cases for where this method
might be called with a URL to a file inside a jar. This commit allows
this method to read URLs with a protocol of 'jar:/'.
This commit is contained in:
Tim Brooks 2017-02-07 11:42:27 -06:00
parent 470ad1ae4a
commit ee84ce09d7
1 changed files with 3 additions and 3 deletions
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6
core/src/main/java/org/elasticsearch/common/io/FileSystemUtils.java
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@ -117,12 +117,12 @@ public final class FileSystemUtils {
}
/**
* Returns an InputStream the given url if the url has a protocol of 'file', no host, and no port.
* Returns an InputStream the given url if the url has a protocol of 'file' or 'jar', no host, and no port.
*/
public static InputStream openFileURLStream(URL url) throws IOException {
String protocol = url.getProtocol();
if ("file".equals(protocol) == false) {
throw new IllegalArgumentException("Invalid protocol [" + protocol + "], must be [file]");
if ("file".equals(protocol) == false && "jar".equals(protocol) == false) {
throw new IllegalArgumentException("Invalid protocol [" + protocol + "], must be [file] or [jar]");
}
if (Strings.isEmpty(url.getHost()) == false) {
throw new IllegalArgumentException("URL cannot have host. Found: [" + url.getHost() + ']');