Bloomreach Experience Manager Groovy updater script to change the namespace of documents

UpdateNamespace.groovy

package org.hippoecm.frontend.plugins.cms.admin.updater

import org.onehippo.repository.update.BaseNodeUpdateVisitor
import javax.jcr.Node
import javax.jcr.RepositoryException
import javax.jcr.Session

class UpdaterNamespace extends BaseNodeUpdateVisitor {

    String findNamespace;
    String replaceNamespace;

    @Override
    public void setParametersMap(Map<String, Object> parametersMap) {
        super.setParametersMap(parametersMap)
        findNamespace = parametersMap["findNamespace"];
        replaceNamespace = parametersMap["replaceNamespace"];
        log.info("Changing nodes of namespace '${findNamespace}' to '${replaceNamespace}'");
    }

    boolean doUpdate(Node node) {
        log.trace("Found node at '${node.path}'");
        if (findNamespace == node.getPrimaryNodeType().getName()) {
            node.setPrimaryType(replaceNamespace);
            log.debug "Reaplaced namespace on node ${node.path}";
            return true;
        }
        log.trace("Skipped node at '${node.path}'")
        return false;
    }

    boolean undoUpdate(Node node) {
        throw new UnsupportedOperationException('Updater does not implement undoUpdate method')
    }
}