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- /* ====================================================================
- 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.hwpf.model;
-
- import java.util.Arrays;
-
- import org.apache.poi.util.Internal;
-
- /**
- * A data structure used to hold some data we don't
- * understand / can't handle, so we have it available
- * for when we come to write back out again
- */
- @Internal
- public final class UnhandledDataStructure
- {
- private final byte[] _buf;
-
- public UnhandledDataStructure(byte[] buf, int offset, int length)
- {
- // Sanity check the size they've asked for
- int offsetEnd = offset + length;
- if (offsetEnd > buf.length || offsetEnd < 0)
- {
- throw new IndexOutOfBoundsException("Buffer Length is " + buf.length + " " +
- "but code is tried to read " + length + " " +
- "from offset " + offset + " to " + offsetEnd);
- }
- if (offset < 0 || length < 0)
- {
- throw new IndexOutOfBoundsException("Offset and Length must both be >= 0, negative " +
- "indicies are not permitted - code is tried to read " + length + " from offset " + offset);
- }
-
- // Save that requested portion of the data
- _buf = Arrays.copyOfRange(buf, offset, offsetEnd);
-
- }
-
- /*package*/ byte[] getBuf()
- {
- return _buf;
- }
- }
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