[minor](*): remove redundant log and unused code. (#11620)

fe/fe-common/src/main/java/org/apache/doris/common/io/OutputBuffer.java

@@ -1,113 +0,0 @@
-// 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.doris.common.io;
-
-import java.io.ByteArrayOutputStream;
-import java.io.FilterOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-
-/**
- * A reusable {@link OutputStream} implementation that writes to an in-memory
- * buffer.
- *
- * <p>
- * This saves memory over creating a new OutputStream and ByteArrayOutputStream
- * each time data is written.
- *
- * <p>
- * Typical usage is something like the following:
- *
- * <pre>
- *
- * OutputBuffer buffer = new OutputBuffer();
- * while (... loop condition ...) {
- *   buffer.reset();
- *   ... write buffer using OutputStream methods ...
- *   byte[] data = buffer.getData();
- *   int dataLength = buffer.getLength();
- *   ... write data to its ultimate destination ...
- * }
- * </pre>
- *
- * @see DataOutputBuffer
- * @see InputBuffer
- */
-public class OutputBuffer extends FilterOutputStream {
-
-    private static class Buffer extends ByteArrayOutputStream {
-        public byte[] getData() {
-            return buf;
-        }
-
-        public int getLength() {
-            return count;
-        }
-
-        public void reset() {
-            count = 0;
-        }
-
-        public void write(InputStream in, int len) throws IOException {
-            int newcount = count + len;
-            if (newcount > buf.length) {
-                byte[] newbuf = new byte[Math.max(buf.length << 1, newcount)];
-                System.arraycopy(buf, 0, newbuf, 0, count);
-                buf = newbuf;
-            }
-            IOUtils.readFully(in, buf, count, len);
-            count = newcount;
-        }
-    }
-
-    private Buffer buffer;
-
-    /** Constructs a new empty buffer. */
-    public OutputBuffer() {
-        this(new Buffer());
-    }
-
-    private OutputBuffer(Buffer buffer) {
-        super(buffer);
-        this.buffer = buffer;
-    }
-
-    /**
-     * Returns the current contents of the buffer. Data is only valid to
-     * {@link #getLength()}.
-     */
-    public byte[] getData() {
-        return buffer.getData();
-    }
-
-    /** Returns the length of the valid data currently in the buffer. */
-    public int getLength() {
-        return buffer.getLength();
-    }
-
-    /** Resets the buffer to empty. */
-    public OutputBuffer reset() {
-        buffer.reset();
-        return this;
-    }
-
-    /** Writes bytes from a InputStream directly into the buffer. */
-    public void write(InputStream in, int length) throws IOException {
-        buffer.write(in, length);
-    }
-}