001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.imaging.formats.tiff.fieldtypes; 018 019import java.nio.ByteOrder; 020import java.util.Arrays; 021 022import org.apache.commons.imaging.ImagingException; 023import org.apache.commons.imaging.common.Allocator; 024import org.apache.commons.imaging.common.ByteConversions; 025import org.apache.commons.imaging.formats.tiff.TiffField; 026 027public class FieldTypeDouble extends AbstractFieldType { 028 public FieldTypeDouble(final int type, final String name) { 029 super(type, name, 8); 030 } 031 032 @Override 033 public Object getValue(final TiffField entry) { 034 final byte[] bytes = entry.getByteArrayValue(); 035 if (entry.getCount() == 1) { 036 return ByteConversions.toDouble(bytes, entry.getByteOrder()); 037 } 038 return ByteConversions.toDoubles(bytes, entry.getByteOrder()); 039 } 040 041 @Override 042 public byte[] writeData(final Object o, final ByteOrder byteOrder) throws ImagingException { 043 if (o instanceof Double) { 044 return ByteConversions.toBytes(((Double) o).doubleValue(), byteOrder); 045 } 046 if (o instanceof double[]) { 047 return ByteConversions.toBytes((double[]) o, byteOrder); 048 } 049 if (!(o instanceof Double[])) { 050 throw new ImagingException("Invalid data", o); 051 } 052 final double[] values = Allocator.doubleArray(((Double[]) o).length); 053 Arrays.setAll(values, i -> ((Double[]) o)[i].doubleValue()); 054 return ByteConversions.toBytes(values, byteOrder); 055 } 056 057}