JarCastingPageStatic
A java utility program to retrieve content of remote web page and rsync to multiple hosts.
- when given page url links, PageStatic will reuse http connections by HttpClient.
- the rsync upload will triggered automatically by the content file max num or timeout.
- rsync will be checked on timeout and exit-value to ensure its success.
- all remote hosts will required password-less to use rsync (rsync -az localdir user@remotehost:remotedir).
- because of PageStatic's own concurrency, only one PageStatic instance is enough.
How to make rsync-over-ssh-without-password
- generate key on the PageStatic running host
user1@10.142.195.61 $ssh-keygen
- copy the key to the remotes
user1@10.142.195.61 $ssh-copy-id -i ~/.ssh/id_rsa.pub user2@10.142.195.62
- check whether it is ssh ok without password
ssh user2@10.142.195.62
Create PageStatic with same upload path
PageStatic pageStatic = new PageStaticBuilder()
.addRsyncRemote("10.142.151.1", "mall")
.addRsyncRemote("10.142.151.2", "mall")
.addRsyncRemote("10.142.151.3", "mall")
.addRsyncRemote("10.142.151.4", "mall")
.addRsyncDir("/home/mall/pagestatic/pagehtml/", "/app/pagestatic/")
// optional
.httpSocketTimeoutSeconds(60) // default 30 seconds
.triggerUploadWhenMaxFiles(100) // default 100
.triggerUploadWhenMaxSeconds(60) // default 120
.deleteLocalDirAfterRsync(true) // default true
.maxUrlContentGeneratingThreads(10) // default 1
.rsyncTimeoutSeconds(60) // default 30 seconds
.rsyncRetryTimes(3) // default 3
.build();
Create PageStatic with different upload path
PageStatic pageStatic = new PageStaticBuilder(
.addRsyncRemote("10.142.151.1", "mall")
.addRsyncRemote("10.142.151.2", "mall")
.addRsyncRemote("10.142.151.3", "mall")
.addRsyncRemote("10.142.151.4", "mall")
.addRsyncDir("/home/mall/pagestatic/pagehtml/", "10.142.151.1:/app/pagestatic1/")
.addRsyncDir("/home/mall/pagestatic/pagehtml/", "10.142.151.2:/app/pagestatic2/")
.addRsyncDir("/home/mall/pagestatic/pagehtml/", "10.142.151.3:/app/pagestatic3/")
.addRsyncDir("/home/mall/pagestatic/pagehtml/", "10.142.151.4:/app/pagestatic4/")
// optional
.httpSocketTimeoutSeconds(60) // default 30 seconds
.triggerUploadWhenMaxFiles(100) // default 100
.triggerUploadWhenMaxSeconds(60) // default 120
.deleteLocalDirAfterRsync(true) // default true
.maxUrlContentGeneratingThreads(10) // default 1
.rsyncTimeoutSeconds(60) // default 30 seconds
.rsyncRetryTimes(3) // default 3
.build();
Create PageStatic by config file
addRsyncRemote(10.142.151.1, mall)
addRsyncRemote(10.142.151.2, mall)
addRsyncRemote(10.142.151.3, mall)
addRsyncRemote(10.142.151.4, mall)
addRsyncDir(/home/mall/pagestatic/pagehtml/, /app/pagestatic/)
// optional
httpSocketTimeoutSeconds(60) // default 30 seconds
triggerUploadWhenMaxFiles(100) // default 100
triggerUploadWhenMaxSeconds(60) // default 120
deleteLocalDirAfterRsync(true) // default true
maxUrlContentGeneratingThreads(10) // default 1
rsyncTimeoutSeconds(60) // default 30 seconds
rsyncRetryTimes(3) // default 3
And then build PageStatic from config like:
PageStatic pageStatic = new PageStaticBuilder().fromSpec("DEMO").build();
Use PageStatic
pageStatic.startupBatch();
// batch process
for (…) {
…
// use web url, and local responding file name
pageStatic.urlStaticAndUpload(url, localFile);
// or given the direct content and upload
String content = "<html>I am static html</html>";
pageStatic.directContentUpload(content, localFile);
}
pageStatic.finishBatch();