/**
* Create a canonical name for a webapp temp directory. The form of the name is: <code>
* "Jetty_"+host+"_"+port+"__"+resourceBase+"_"+context+"_"+virtualhost+base36_hashcode_of_whole_string
* </code> host and port uniquely identify the server context and virtual host uniquely identify
* the webapp
*
* @return the canonical name for the webapp temp directory
*/
public static String getCanonicalNameForWebAppTmpDir(WebAppContext context) {
StringBuffer canonicalName = new StringBuffer();
canonicalName.append("jetty-");
// get the host and the port from the first connector
Server server = context.getServer();
if (server != null) {
Connector[] connectors = context.getServer().getConnectors();
if (connectors.length > 0) {
// Get the host
String host = (connectors == null || connectors[0] == null ? "" : connectors[0].getHost());
if (host == null) host = "0.0.0.0";
canonicalName.append(host);
// Get the port
canonicalName.append("-");
// try getting the real port being listened on
int port = (connectors == null || connectors[0] == null ? 0 : connectors[0].getLocalPort());
// if not available (eg no connectors or connector not started),
// try getting one that was configured.
if (port < 0) port = connectors[0].getPort();
canonicalName.append(port);
canonicalName.append("-");
}
}
// Resource base
try {
Resource resource = context.getBaseResource();
if (resource == null) {
if (context.getWar() == null || context.getWar().length() == 0)
resource = context.newResource(context.getResourceBase());
// Set dir or WAR
resource = context.newResource(context.getWar());
}
String tmp = URIUtil.decodePath(resource.getURL().getPath());
if (tmp.endsWith("/")) tmp = tmp.substring(0, tmp.length() - 1);
if (tmp.endsWith("!")) tmp = tmp.substring(0, tmp.length() - 1);
// get just the last part which is the filename
int i = tmp.lastIndexOf("/");
canonicalName.append(tmp.substring(i + 1, tmp.length()));
canonicalName.append("-");
} catch (Exception e) {
LOG.warn("Can't generate resourceBase as part of webapp tmp dir name", e);
}
// Context name
String contextPath = context.getContextPath();
contextPath = contextPath.replace('/', '_');
contextPath = contextPath.replace('\\', '_');
canonicalName.append(contextPath);
// Virtual host (if there is one)
canonicalName.append("-");
String[] vhosts = context.getVirtualHosts();
if (vhosts == null || vhosts.length <= 0) canonicalName.append("any");
else canonicalName.append(vhosts[0]);
// sanitize
for (int i = 0; i < canonicalName.length(); i++) {
char c = canonicalName.charAt(i);
if (!Character.isJavaIdentifierPart(c) && "-.".indexOf(c) < 0)
canonicalName.setCharAt(i, '.');
}
canonicalName.append("-");
return canonicalName.toString();
}
