| /* ==================================================================== |
| 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.poi.util.Internal; |
| import org.apache.poi.util.LittleEndianByteArrayInputStream; |
| |
| @Internal |
| public class Array |
| { |
| static class ArrayDimension { |
| private long _size; |
| @SuppressWarnings("unused") |
| private int _indexOffset; |
| |
| void read( LittleEndianByteArrayInputStream lei ) { |
| _size = lei.readUInt(); |
| _indexOffset = lei.readInt(); |
| } |
| } |
| |
| static class ArrayHeader |
| { |
| private ArrayDimension[] _dimensions; |
| private int _type; |
| |
| void read( LittleEndianByteArrayInputStream lei ) { |
| _type = lei.readInt(); |
| |
| long numDimensionsUnsigned = lei.readUInt(); |
| |
| if ( !( 1 <= numDimensionsUnsigned && numDimensionsUnsigned <= 31 ) ) { |
| String msg = "Array dimension number "+numDimensionsUnsigned+" is not in [1; 31] range"; |
| throw new IllegalPropertySetDataException(msg); |
| } |
| |
| int numDimensions = (int) numDimensionsUnsigned; |
| |
| _dimensions = new ArrayDimension[numDimensions]; |
| for ( int i = 0; i < numDimensions; i++ ) { |
| ArrayDimension ad = new ArrayDimension(); |
| ad.read(lei); |
| _dimensions[i] = ad; |
| } |
| } |
| |
| long getNumberOfScalarValues() { |
| long result = 1; |
| for ( ArrayDimension dimension : _dimensions ) { |
| result *= dimension._size; |
| } |
| return result; |
| } |
| |
| int getType() { |
| return _type; |
| } |
| } |
| |
| private final ArrayHeader _header = new ArrayHeader(); |
| private TypedPropertyValue[] _values; |
| |
| public void read( LittleEndianByteArrayInputStream lei ) { |
| _header.read(lei); |
| |
| long numberOfScalarsLong = _header.getNumberOfScalarValues(); |
| if ( numberOfScalarsLong > Integer.MAX_VALUE ) { |
| String msg = |
| "Sorry, but POI can't store array of properties with size of " + |
| numberOfScalarsLong + " in memory"; |
| throw new UnsupportedOperationException(msg); |
| } |
| int numberOfScalars = (int) numberOfScalarsLong; |
| |
| _values = new TypedPropertyValue[numberOfScalars]; |
| int paddedType = (_header._type == Variant.VT_VARIANT) ? 0 : _header._type; |
| for ( int i = 0; i < numberOfScalars; i++ ) { |
| TypedPropertyValue typedPropertyValue = new TypedPropertyValue(paddedType, null); |
| typedPropertyValue.read(lei); |
| _values[i] = typedPropertyValue; |
| if (paddedType != 0) { |
| TypedPropertyValue.skipPadding(lei); |
| } |
| } |
| } |
| |
| public TypedPropertyValue[] getValues(){ |
| return _values; |
| } |
| } |