private boolean unzipModule(
final ModuleIdentifier modID, final ModuleZipInfo zipInfo, boolean deleteZip) {
// We synchronize to prevent a race whereby it tries to unzip the same module at the
// same time (e.g. deployModule for the same module name has been called in parallel)
String modName = modID.toString();
synchronized (modName.intern()) {
if (!checkModDirs()) {
return false;
}
File fdest = new File(modRoot, modName);
File sdest = new File(systemModRoot, modName);
if (fdest.exists() || sdest.exists()) {
// This can happen if the same module is requested to be installed
// at around the same time
// It's ok if this happens
log.warn("Module " + modID + " is already installed");
return true;
}
// Unzip into temp dir first
File tdest = unzipIntoTmpDir(zipInfo, deleteZip);
if (tdest == null) {
return false;
}
// Check if it's a system module
JsonObject conf = loadModuleConfig(modID, tdest);
ModuleFields fields = new ModuleFields(conf);
boolean system = fields.isSystem();
// Now copy it to the proper directory
String moveFrom = tdest.getAbsolutePath();
try {
vertx
.fileSystem()
.moveSync(moveFrom, system ? sdest.getAbsolutePath() : fdest.getAbsolutePath());
} catch (Exception e) {
log.error("Failed to move module", e);
return false;
}
log.info("Module " + modID + " successfully installed");
return true;
}
}
public synchronized void uninstallModule(String moduleName) {
log.info("Uninstalling module " + moduleName + " from directory " + modRoot);
File modDir = new File(modRoot, moduleName);
if (!modDir.exists()) {
log.error("Cannot find module to uninstall");
} else {
try {
vertx.fileSystem().deleteSync(modDir.getAbsolutePath(), true);
log.info("Module " + moduleName + " successfully uninstalled");
} catch (Exception e) {
log.error("Failed to delete directory: " + e.getMessage());
}
}
}
// We calculate a path adjustment that can be used by the fileSystem object
// so that the *effective* working directory can be the module directory
// this allows moduleRefs to read and write the file system as if they were
// in the module dir, even though the actual working directory will be
// wherever vertx run or vertx start was called from
private void setPathAdjustment(File modDir) {
Path cwd = Paths.get(".").toAbsolutePath().getParent();
Path pmodDir = Paths.get(modDir.getAbsolutePath());
Path relative = cwd.relativize(pmodDir);
vertx.getContext().setPathAdjustment(relative);
}