| /* |
| * 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.update; |
| |
| import org.apache.solr.common.util.FastOutputStream; |
| |
| import java.io.IOException; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| /** @lucene.internal */ |
| public class MemOutputStream extends FastOutputStream { |
| public List<byte[]> buffers = new LinkedList<>(); |
| public MemOutputStream(byte[] tempBuffer) { |
| super(null, tempBuffer, 0); |
| } |
| |
| @Override |
| public void flush(byte[] arr, int offset, int len) throws IOException { |
| if (arr == buf && offset==0 && len==buf.length) { |
| buffers.add(buf); // steal the buffer |
| buf = new byte[8192]; |
| } else if (len > 0) { |
| byte[] newBuf = new byte[len]; |
| System.arraycopy(arr, offset, newBuf, 0, len); |
| buffers.add(newBuf); |
| } |
| } |
| |
| public void writeAll(FastOutputStream fos) throws IOException { |
| for (byte[] buffer : buffers) { |
| fos.write(buffer); |
| } |
| if (pos > 0) { |
| fos.write(buf, 0, pos); |
| } |
| } |
| } |