| /* ==================================================================== |
| 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.poi.hpsf; |
| |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.poi.util.IOUtils; |
| import org.apache.poi.util.Internal; |
| import org.apache.poi.util.LittleEndian; |
| import org.apache.poi.util.LittleEndianByteArrayInputStream; |
| import org.apache.poi.util.LittleEndianConsts; |
| |
| import static org.apache.logging.log4j.util.Unbox.box; |
| |
| @Internal |
| public class ClipboardData { |
| //arbitrarily selected; may need to increase |
| private static final int MAX_RECORD_LENGTH = 100_000_000; |
| |
| private static final Logger LOG = LogManager.getLogger(ClipboardData.class); |
| |
| private int _format; |
| private byte[] _value; |
| |
| public void read( LittleEndianByteArrayInputStream lei ) { |
| int offset = lei.getReadIndex(); |
| long size = lei.readInt(); |
| |
| if ( size < 4 ) { |
| LOG.atWarn().log("ClipboardData at offset {} size less than 4 bytes (doesn't even have format " + |
| "field!). Setting to format == 0 and hope for the best", box(offset)); |
| _format = 0; |
| _value = new byte[0]; |
| return; |
| } |
| |
| _format = lei.readInt(); |
| _value = IOUtils.safelyAllocate(size - LittleEndianConsts.INT_SIZE, MAX_RECORD_LENGTH); |
| lei.readFully(_value); |
| } |
| |
| public byte[] getValue() { |
| return _value; |
| } |
| |
| public byte[] toByteArray() { |
| byte[] result = new byte[LittleEndianConsts.INT_SIZE*2+_value.length]; |
| LittleEndian.putInt(result, 0, LittleEndianConsts.INT_SIZE + _value.length); |
| LittleEndian.putInt(result, 4, _format); |
| System.arraycopy(_value, 0, result, 8, _value.length); |
| return result; |
| } |
| |
| public void setValue( byte[] value ) { |
| _value = value.clone(); |
| } |
| } |