Examples with Bucket org.apache.solr.client.solrj.io.stream.metrics.Bucket used on opensource projects

Example 6 with Bucket

use of org.apache.solr.client.solrj.io.stream.metrics.Bucket in project lucene-solr by apache.

the class FacetStream method toExpression.

@Override
public StreamExpressionParameter toExpression(StreamFactory factory) throws IOException {
    // function name
    StreamExpression expression = new StreamExpression(factory.getFunctionName(this.getClass()));
    // collection
    expression.addParameter(collection);
    // parameters
    ModifiableSolrParams tmpParams = new ModifiableSolrParams(params);
    for (Entry<String, String[]> param : tmpParams.getMap().entrySet()) {
        expression.addParameter(new StreamExpressionNamedParameter(param.getKey(), String.join(",", param.getValue())));
    }
    // buckets
    {
        StringBuilder builder = new StringBuilder();
        for (Bucket bucket : buckets) {
            if (0 != builder.length()) {
                builder.append(",");
            }
            builder.append(bucket.toString());
        }
        expression.addParameter(new StreamExpressionNamedParameter("buckets", builder.toString()));
    }
    // bucketSorts
    {
        StringBuilder builder = new StringBuilder();
        for (FieldComparator sort : bucketSorts) {
            if (0 != builder.length()) {
                builder.append(",");
            }
            builder.append(sort.toExpression(factory));
        }
        expression.addParameter(new StreamExpressionNamedParameter("bucketSorts", builder.toString()));
    }
    // metrics
    for (Metric metric : metrics) {
        expression.addParameter(metric.toExpression(factory));
    }
    // limit
    expression.addParameter(new StreamExpressionNamedParameter("bucketSizeLimit", Integer.toString(bucketSizeLimit)));
    // zkHost
    expression.addParameter(new StreamExpressionNamedParameter("zkHost", zkHost));
    return expression;
}