org.apache.solr.schema.BinaryField Maven / Gradle / Ivy
/*
* 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.schema;
import java.io.IOException;
import java.nio.ByteBuffer;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexableField;
import org.apache.lucene.search.SortField;
import org.apache.lucene.util.BytesRef;
import org.apache.solr.common.util.Base64;
import org.apache.solr.response.TextResponseWriter;
public class BinaryField extends FieldType {
private String toBase64String(ByteBuffer buf) {
return Base64.byteArrayToBase64(buf.array(), buf.position(), buf.limit()-buf.position());
}
@Override
public void write(TextResponseWriter writer, String name, IndexableField f) throws IOException {
writer.writeStr(name, toBase64String(toObject(f)), false);
}
@Override
public SortField getSortField(SchemaField field, boolean top) {
throw new RuntimeException("Cannot sort on a Binary field");
}
@Override
public String toExternal(IndexableField f) {
return toBase64String(toObject(f));
}
@Override
public ByteBuffer toObject(IndexableField f) {
BytesRef bytes = f.binaryValue();
return ByteBuffer.wrap(bytes.bytes, bytes.offset, bytes.length);
}
@Override
public IndexableField createField(SchemaField field, Object val, float boost) {
if (val == null) return null;
if (!field.stored()) {
log.trace("Ignoring unstored binary field: " + field);
return null;
}
byte[] buf = null;
int offset = 0, len = 0;
if (val instanceof byte[]) {
buf = (byte[]) val;
len = buf.length;
} else if (val instanceof ByteBuffer && ((ByteBuffer)val).hasArray()) {
ByteBuffer byteBuf = (ByteBuffer) val;
buf = byteBuf.array();
offset = byteBuf.position();
len = byteBuf.limit() - byteBuf.position();
} else {
String strVal = val.toString();
//the string has to be a base64 encoded string
buf = Base64.base64ToByteArray(strVal);
offset = 0;
len = buf.length;
}
Field f = new org.apache.lucene.document.StoredField(field.getName(), buf, offset, len);
f.setBoost(boost);
return f;
}
}