AssignedToOnCallFunction.groovy

package com.onresolve.jira.groovy.jql

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.jql.parser.JqlQueryParser
import com.atlassian.jira.jql.query.LuceneQueryBuilder
import com.atlassian.jira.jql.query.QueryCreationContext
import com.atlassian.jira.user.ApplicationUser
import com.atlassian.jira.util.MessageSet
import com.atlassian.query.clause.TerminalClause
import com.atlassian.query.operand.FunctionOperand
import groovyx.net.http.ContentType
import groovyx.net.http.HTTPBuilder
import groovyx.net.http.Method
import org.apache.lucene.search.Query

class AssignedToOnCallFunction extends AbstractScriptedJqlFunction implements JqlQueryFunction {

    def queryParser = ComponentAccessor.getComponent(JqlQueryParser)
    def luceneQueryBuilder = ComponentAccessor.getComponent(LuceneQueryBuilder)

    @Override
    String getDescription() {
        "Create release notes"
    }

    @Override
    MessageSet validate(ApplicationUser user, FunctionOperand operand, TerminalClause terminalClause) {
        // could add validation if you want
        null
    }

    @Override
    List<Map> getArguments() {
        []
    }

    @Override
    String getFunctionName() {
        "assignedToOnCall"
    }

    @Override
    Query getQuery(QueryCreationContext queryCreationContext, FunctionOperand operand, TerminalClause terminalClause) {

        // I'm using the rest api with hard-coded credentials just for testing... replace with whatever rest api you have
        def httpBuilder = new HTTPBuilder('http://localhost:8080/jira/')
        def response = httpBuilder.request(Method.GET, ContentType.JSON) {
            uri.query = ['os_username': 'admin', 'os_password': 'admin']
            uri.path = 'rest/auth/1/session'
        }

        def username = response.name

        def query = queryParser.parseQuery("assignee = $username")
        luceneQueryBuilder.createLuceneQuery(queryCreationContext, query.whereClause)
    }
}