| /* ==================================================================== |
| 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.poifs.property; |
| |
| import org.apache.commons.math3.util.ArithmeticUtils; |
| import org.apache.poi.poifs.common.POIFSConstants; |
| |
| /** |
| * Root property |
| */ |
| public final class RootProperty extends DirectoryProperty { |
| private static final String NAME = "Root Entry"; |
| |
| RootProperty() |
| { |
| super(NAME); |
| |
| // overrides |
| setNodeColor(_NODE_BLACK); |
| setPropertyType(PropertyConstants.ROOT_TYPE); |
| setStartBlock(POIFSConstants.END_OF_CHAIN); |
| } |
| |
| /** |
| * reader constructor |
| * |
| * @param index index number |
| * @param array byte data |
| * @param offset offset into byte data |
| */ |
| RootProperty(final int index, final byte [] array, final int offset) { |
| super(index, array, offset); |
| } |
| |
| /** |
| * set size |
| * |
| * @param size size in terms of small blocks |
| */ |
| public void setSize(int size) |
| { |
| final int BLOCK_SHIFT = 6; |
| final int _block_size = 1 << BLOCK_SHIFT; |
| super.setSize(ArithmeticUtils.mulAndCheck(size, _block_size)); |
| } |
| |
| /** |
| * Returns the fixed name "Root Entry", as the |
| * raw property doesn't have a real name set |
| */ |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| } |