Script to test Apache Sling Repoinit with many operations

repoinit.esp

<%
/*
Demo script for my adaptTo 2021 talk, on Apache Sling repoinit:
https://adapt.to/2021/en/schedule/repoinit-a-mini-language-for-content-repository-initialization.html

Generate and execute a number (see "limit" below) of repoinit statements.

To use this, save this script as repoinit.esp, create
a node with a unique resource type that points to it
and request that node with the appropriate extension:

    curl -u admin:admin -F sling:resourceType=repoinit http://localhost:8080/content/repoinit
    curl -X MKCOL -u admin:admin http://localhost:8080/apps/repoinit
    curl -u admin:admin -T repoinit.esp http://localhost:8080/apps/repoinit/repoinit.esp
    curl http://localhost:8080/content/repoinit.repoinit

Results on my 2018 macbook pro with Java 11, running the default Sling Starter
setup with Oak/tar persistence:

with limit = 999:
3996 repoinit operations executed successfully.
999 paths should have been created under /tmp/repoinit-one.
Elapsed time for script generation: 3 msec.
Elapsed time for repoinit parsing: 13 msec.
Elapsed time for repoinit operations execution: 4685 msec.

with limit = 2500:
10000 repoinit operations executed successfully.
2500 paths should have been created under /tmp/repoinit-two.
Elapsed time for script generation: 9 msec.
Elapsed time for repoinit parsing: 34 msec.
Elapsed time for repoinit operations execution: 11862 msec.

second execution with limit = 2500, paths already created:
10000 repoinit operations executed successfully.
2500 paths should have been created under /tmp/repoinit-two.
Elapsed time for script generation: 10 msec.
Elapsed time for repoinit parsing: 31 msec.
Elapsed time for repoinit operations execution: 4863 msec.

with limit = 5000:
20000 repoinit operations executed successfully.
5000 paths should have been created under /tmp/repoinit-three.
Elapsed time for script generation: 16 msec.
Elapsed time for repoinit parsing: 127 msec.
Elapsed time for repoinit operations execution: 23868 msec.

second execution with limit = 5000, paths already created:
20000 repoinit operations executed successfully.
5000 paths should have been created under /tmp/repoinit-three.
Elapsed time for script generation: 16 msec.
Elapsed time for repoinit parsing: 60 msec.
Elapsed time for repoinit operations execution: 9941 msec.

*/

var scriptStart = new Date();
var base = "/tmp/repoinit-three";
var limit = 5000;
var script = "";
for(i=1 ; i <= limit; i++) {
    var user = "LU-" + i;
    var path = base + "/mod-" + i % 256 + "/lu-" + i;
    var EOL = "\n";
    script += "create service user " + user + EOL
        + "create path " + path + EOL
        + "set ACL for " + user + EOL + "allow jcr:all on " + path + EOL + "end" + EOL
        + "set ACL on " + path + EOL + "deny jcr:read for everyone" + EOL + "end" + EOL
    ;
}

var parsingStart = new Date();
var parser = sling.getService(Packages.org.apache.sling.repoinit.parser.RepoInitParser);
var ops = parser.parse(new Packages.java.io.StringReader(script));

var processingStart = new Date();
var processor = sling.getService(Packages.org.apache.sling.jcr.repoinit.JcrRepoInitOpsProcessor);
var repository = sling.getService(Packages.org.apache.sling.jcr.api.SlingRepository);
var admin = new Packages.java.lang.String("admin");
var creds = new Packages.javax.jcr.SimpleCredentials(admin, admin.toCharArray());
var session = repository.login(creds);

processor.apply(session, ops);
session.save();
var processingDone = new Date();
%>
<%= ops.size() %> repoinit operations executed successfully.
<%= limit %> paths should have been created under <%= base %>.
Elapsed time for script generation: <%= parsingStart - scriptStart %> msec.
Elapsed time for repoinit parsing: <%= processingStart - parsingStart %> msec.
Elapsed time for repoinit operations execution: <%= processingDone - processingStart %> msec.