| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.solr.handler.export; |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.index.DocValues; |
| import org.apache.lucene.index.LeafReaderContext; |
| import org.apache.lucene.index.NumericDocValues; |
| |
| public class LongValue implements SortValue { |
| |
| final protected String field; |
| final protected LongComp comp; |
| protected NumericDocValues vals; |
| protected long currentValue; |
| private int lastDocID; |
| private boolean present; |
| |
| public LongValue(String field, LongComp comp) { |
| this.field = field; |
| this.comp = comp; |
| this.currentValue = comp.resetValue(); |
| this.present = false; |
| } |
| |
| public Object getCurrentValue() { |
| assert present == true; |
| return currentValue; |
| } |
| |
| public String getField() { |
| return field; |
| } |
| |
| public LongValue copy() { |
| return new LongValue(field, comp); |
| } |
| |
| public void setNextReader(LeafReaderContext context) throws IOException { |
| this.vals = DocValues.getNumeric(context.reader(), field); |
| lastDocID = 0; |
| } |
| |
| public void setCurrentValue(int docId) throws IOException { |
| if (docId < lastDocID) { |
| throw new AssertionError("docs were sent out-of-order: lastDocID=" + lastDocID + " vs doc=" + docId); |
| } |
| lastDocID = docId; |
| int curDocID = vals.docID(); |
| if (docId > curDocID) { |
| curDocID = vals.advance(docId); |
| } |
| if (docId == curDocID) { |
| present = true; |
| currentValue = vals.longValue(); |
| } else { |
| present = false; |
| currentValue = 0; |
| } |
| } |
| |
| @Override |
| public boolean isPresent() { |
| return present; |
| } |
| |
| public void setCurrentValue(SortValue sv) { |
| LongValue lv = (LongValue)sv; |
| this.currentValue = lv.currentValue; |
| this.present = lv.present; |
| } |
| |
| public int compareTo(SortValue o) { |
| LongValue l = (LongValue)o; |
| return comp.compare(currentValue, l.currentValue); |
| } |
| |
| public void reset() { |
| this.currentValue = comp.resetValue(); |
| this.present = false; |
| } |
| } |