Solrj Date request

Question

How to request by date using SolrJ?

I get as a parameter a date in this format '01/10/2014' . Then I convert this format to a Date object and convert the object to a UTC format. Here is a code example of what I am doing :

public class DateHelper {
    public static final String DD_MM_YYYY_FORMAT = "dd/MM/yyyy";
    public static final String SOLR_DATE_FORMAT = "yyyy-MM-dd'T'HH:mm:ss'Z'";

    public static Date getDateFromString(String date, String format) {
        if (StringUtils.isNotEmpty(date)) {
            try {
                return FastDateFormat.getInstance(format).parse(date);
            } catch (ParseException e) {
                LOGGER.error(e.getMessage());
            }
        }
        return null;
    }

    public static String getStringFromDate(Date date, String format) {
        if (date != null) {
            try {
                return FastDateFormat.getInstance(format).format(date);
            } catch (Exception e) {
                LOGGER.error(e.getMessage());
            }
        }
        return "";
    }        

    public static void main(String...args){
        Date dateFromString = DateHelper.getDateFromString('01/10/2014', DateHelper.DD_MM_YYYY_FORMAT);
        String date = DateHelper.getStringFromDate(dateFromString, DateHelper.SOLR_DATE_FORMAT);
        System.out.println(date);
    }
}

This small program displays ' 2014-10-01T00:00:00Z '. When I try to submit this date in Solr using a filter query, I receive this error from Sorl :

org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException: Invalid Date String:'2014-10-01T00'

Here is my Solr query :

SolrQuery solrQuery = new SolrQuery("*:*");
String date = String.format( "date:%s",dateInput);
query.addFilterQuery(date);

getSolrServer().query(solrQuery, METHOD.POST);

How can I solve this problem? THx for your help.

PS : The class FastDateFormat is from Apache Commons Lang 3. I am using solr version 4.8.1.

Answer 1

This happens because of the way filterQuery is created:

String date = String.format( "date:%s",dateInput);
query.addFilterQuery(date);

That way the solr gets:

date:2014-10-01T00:00:00Z

And the exception is thrown because of the multiple : symbols that the Query Parser cannot parse correctly.

---

In order to fix it the special characters that are part of Query Syntax should be escaped.

From the java side it can be done this way (using ClientUtils.escapeQueryChars from SolrJ):

String date = String.format( "date:%s", ClientUtils.escapeQueryChars(dateInput));
query.addFilterQuery(date);

Answer 2

查询Solr日期字段的语法- Date:[YYYY-MM-DDTHH:mm:ssZ]