| /* |
| * 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.analytics.util.valuesource; |
| |
| import java.io.IOException; |
| import java.text.ParseException; |
| import java.util.Date; |
| import java.util.Map; |
| |
| import org.apache.lucene.index.AtomicReaderContext; |
| import org.apache.lucene.queries.function.FunctionValues; |
| import org.apache.lucene.queries.function.docvalues.LongDocValues; |
| import org.apache.lucene.queries.function.valuesource.LongFieldSource; |
| import org.apache.lucene.search.FieldCache; |
| import org.apache.lucene.util.Bits; |
| import org.apache.lucene.util.BytesRef; |
| import org.apache.lucene.util.mutable.MutableValue; |
| import org.apache.lucene.util.mutable.MutableValueDate; |
| import org.apache.solr.schema.TrieDateField; |
| |
| /** |
| * Extends {@link LongFieldSource} to have a field source that takes in |
| * and returns {@link Date} values while working with long values internally. |
| */ |
| public class DateFieldSource extends LongFieldSource { |
| |
| public DateFieldSource(String field) throws ParseException { |
| super(field, null); |
| } |
| |
| public DateFieldSource(String field, FieldCache.LongParser parser) { |
| super(field, parser); |
| } |
| |
| public long externalToLong(String extVal) { |
| return parser.parseLong(new BytesRef(extVal)); |
| } |
| |
| public Object longToObject(long val) { |
| return new Date(val); |
| } |
| |
| @SuppressWarnings("deprecation") |
| public String longToString(long val) { |
| return TrieDateField.formatExternal((Date)longToObject(val)); |
| } |
| |
| @Override |
| public FunctionValues getValues(Map context, AtomicReaderContext readerContext) throws IOException { |
| final FieldCache.Longs arr = cache.getLongs(readerContext.reader(), field, parser, true); |
| final Bits valid = cache.getDocsWithField(readerContext.reader(), field); |
| return new LongDocValues(this) { |
| @Override |
| public long longVal(int doc) { |
| return arr.get(doc); |
| } |
| |
| @Override |
| public boolean exists(int doc) { |
| return valid.get(doc); |
| } |
| |
| @Override |
| public Object objectVal(int doc) { |
| return exists(doc) ? longToObject(arr.get(doc)) : null; |
| } |
| |
| @Override |
| public String strVal(int doc) { |
| return exists(doc) ? longToString(arr.get(doc)) : null; |
| } |
| |
| @Override |
| public ValueFiller getValueFiller() { |
| return new ValueFiller() { |
| private final MutableValueDate mval = new MutableValueDate(); |
| |
| @Override |
| public MutableValue getValue() { |
| return mval; |
| } |
| |
| @Override |
| public void fillValue(int doc) { |
| mval.value = arr.get(doc); |
| mval.exists = exists(doc); |
| } |
| }; |
| } |
| |
| }; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (o.getClass() != this.getClass()) return false; |
| DateFieldSource other = (DateFieldSource) o; |
| if (parser==null) { |
| return field.equals(other.field); |
| } else { |
| return field.equals(other.field) && parser.equals(other.parser); |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| int h = parser == null ? this.getClass().hashCode() : parser.getClass().hashCode(); |
| h += super.hashCode(); |
| return h; |
| } |
| |
| } |