package org.apache.blur.utils;
/**
* 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.
*/
import static org.apache.blur.utils.BlurConstants.*;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.blur.analysis.FieldManager;
import org.apache.blur.thrift.generated.FetchRecordResult;
import org.apache.blur.thrift.generated.Record;
import org.apache.blur.thrift.generated.Row;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.apache.lucene.document.StringField;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.index.IndexableField;
import org.apache.lucene.index.Term;
public class RowDocumentUtil {
public static FieldType ID_TYPE;
static {
ID_TYPE = new FieldType();
ID_TYPE.setIndexed(true);
ID_TYPE.setTokenized(false);
ID_TYPE.setOmitNorms(true);
ID_TYPE.setStored(true);
ID_TYPE.freeze();
}
public static FetchRecordResult getRecord(Document document) {
FetchRecordResult result = new FetchRecordResult();
BlurThriftRecord record = new BlurThriftRecord();
String rowId = readRecord(document, record);
result.setRecord(record);
result.setRowid(rowId);
return result;
}
public static Row getRow(Iterable<Document> docs) {
Row row = new Row();
boolean empty = true;
if (docs == null) {
return null;
}
for (Document document : docs) {
empty = false;
BlurThriftRecord record = new BlurThriftRecord();
String rowId = readRecord(document, record);
if (record.getColumns() != null) {
row.addToRecords(record);
}
if (row.id == null) {
row.setId(rowId);
}
}
if (empty) {
return null;
}
if (row.records == null) {
row.records = new ArrayList<Record>();
}
return row;
}
public static String readRecord(Document document, ReaderBlurRecord reader) {
String rowId = null;
for (IndexableField field : document.getFields()) {
if (field.name().equals(ROW_ID)) {
rowId = field.stringValue();
} else if (field.name().equals(RECORD_ID)) {
reader.setRecordIdStr(field.stringValue());
} else if (field.name().equals(FAMILY)) {
reader.setFamilyStr(field.stringValue());
} else {
String name = field.name();
int index = name.indexOf(SEP);
if (index < 0) {
continue;
}
name = name.substring(index + 1);
reader.addColumn(name, field.stringValue());
}
}
return rowId;
}
public static List<List<Field>> getDocs(Row row, FieldManager fieldManager) throws IOException {
List<Record> records = row.records;
if (records == null) {
return null;
}
int size = records.size();
if (size == 0) {
return null;
}
final String rowId = row.id;
List<List<Field>> docs = new ArrayList<List<Field>>(size);
for (int i = 0; i < size; i++) {
Record record = records.get(i);
List<Field> fields = getDoc(fieldManager, rowId, record);
docs.add(fields);
}
List<Field> doc = docs.get(0);
doc.add(new StringField(BlurConstants.PRIME_DOC, BlurConstants.PRIME_DOC_VALUE, Store.NO));
return docs;
}
public static List<Field> getDoc(FieldManager fieldManager, final String rowId, Record record) throws IOException {
ShardUtil.validateRowIdAndRecord(rowId, record);
List<Field> fields = fieldManager.getFields(rowId, record);
return fields;
}
public static Term createRowId(String id) {
return new Term(BlurConstants.ROW_ID, id);
}
}