Script in docs for reindexing scripted fields needs updating for Jira 8 API

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.index.IssueIndexingService
import com.atlassian.jira.issue.search.SearchProvider
import com.atlassian.jira.issue.search.SearchProviderFactory
import com.atlassian.jira.issue.util.IssueIdsIssueIterable
import com.atlassian.jira.jql.builder.JqlQueryBuilder
import com.atlassian.jira.jql.query.IssueIdCollector
import com.atlassian.jira.task.context.LoggingContextSink
import com.atlassian.jira.task.context.PercentageContext
import com.onresolve.scriptrunner.runner.ScriptFieldManager
import com.atlassian.jira.issue.search.SearchQuery
import org.apache.log4j.Level

def customFieldManager = ComponentAccessor.getCustomFieldManager()
def searchProvider = ComponentAccessor.getComponent(SearchProvider)
def user = ComponentAccessor.jiraAuthenticationContext.getLoggedInUser()
def issueIndexingService = ComponentAccessor.getComponent(IssueIndexingService)
def searchProviderFactory = ComponentAccessor.getComponent(SearchProviderFactory)
def issueManager = ComponentAccessor.getIssueManager()

/*
 Loop through all script fields and get their contexts
 Create a query and execute it
 Reindex all results
*/

def builder = JqlQueryBuilder.newBuilder().where().defaultOr()

def scriptFields = customFieldManager.getCustomFieldObjects().findAll {
    it.customFieldType.descriptor.completeKey == ScriptFieldManager.SCRIPT_FIELD_TYPE
}

if (scriptFields.find {
    it.allProjects && it.allIssueTypes
}) {
    log.warn("A full background reindex is required at least one script field has global scope")
} else {
    scriptFields.each {
        def clauseBuilder = JqlQueryBuilder.newClauseBuilder().defaultAnd()

        if (!it.allProjects) {
            clauseBuilder.project(*it.associatedProjectObjects*.id).buildClause()
        }
        if (!it.allIssueTypes) {
            clauseBuilder.issueType(*it.associatedIssueTypes*.id).buildClause()
        }

        builder.addClause(clauseBuilder.buildClause())
    }
}

def query = builder.buildQuery()

def issueIdCollector = new IssueIdCollector()

searchProvider.search(SearchQuery.create(query, user), issueIdCollector)

def total = issueIdCollector.issueIds.size()
def issuesIdsIterable = new IssueIdsIssueIterable(issueIdCollector.issueIds*.toLong(), issueManager)
def loggingContextSink = new LoggingContextSink(log, "Indexing script field issues {0}% ($total total)", Level.DEBUG)
issueIndexingService.reIndexIssues(issuesIdsIterable, new PercentageContext(total, loggingContextSink))