org.apache.sanselan.formats.tiff.TiffField Maven / Gradle / Ivy
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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.sanselan.formats.tiff;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import org.apache.sanselan.ImageReadException;
import org.apache.sanselan.common.byteSources.ByteSource;
import org.apache.sanselan.formats.tiff.constants.TagInfo;
import org.apache.sanselan.formats.tiff.constants.TiffConstants;
import org.apache.sanselan.formats.tiff.fieldtypes.FieldType;
public class TiffField implements TiffConstants
{
public final TagInfo tagInfo;
public final FieldType fieldType;
public final int tag;
public final int directoryType;
public final int type;
public final int length;
public final int valueOffset;
public final byte valueOffsetBytes[];
public byte oversizeValue[] = null;
public final int byteOrder;
public TiffField(int tag, int directoryType, int type, int Length,
int ValueOffset, byte ValueOffsetBytes[], int byteOrder)
{
this.tag = tag;
this.directoryType = directoryType;
this.type = type;
this.length = Length;
this.valueOffset = ValueOffset;
this.valueOffsetBytes = ValueOffsetBytes;
this.byteOrder = byteOrder;
fieldType = getFieldType(type);
tagInfo = getTag(directoryType, tag);
}
private int sortHint = -1;
public boolean isLocalValue()
{
return fieldType.isLocalValue(this);
}
public int getBytesLength() throws ImageReadException
{
return fieldType.getBytesLength(this);
}
public final class OversizeValueElement extends TiffElement
{
public OversizeValueElement(int offset, int length)
{
super(offset, length);
}
public String getElementDescription(boolean verbose)
{
if (verbose)
return null;
return "OversizeValueElement, tag: " + tagInfo.name
+ ", fieldType: " + fieldType.name;
}
}
public TiffElement getOversizeValueElement()
{
if (fieldType.isLocalValue(this))
return null;
return new OversizeValueElement(valueOffset, oversizeValue.length);
}
public void setOversizeValue(byte bytes[])
{
this.oversizeValue = bytes;
}
private static FieldType getFieldType(int value)
{
for (int i = 0; i < FIELD_TYPES.length; i++)
{
FieldType fieldType = FIELD_TYPES[i];
if (fieldType.type == value)
return fieldType;
}
return FIELD_TYPE_UNKNOWN;
}
private static TagInfo getTag(int directoryType, int tag,
List possibleMatches)
{
if (possibleMatches.size() < 1)
return null;
// else if (possibleMatches.size() == 1)
// {
// TagInfo tagInfo = (TagInfo) possibleMatches.get(0);
// return tagInfo;
// }
// first search for exact match.
for (int i = 0; i < possibleMatches.size(); i++)
{
TagInfo tagInfo = (TagInfo) possibleMatches.get(i);
if (tagInfo.directoryType == EXIF_DIRECTORY_UNKNOWN)
// pass
continue;
else if (directoryType == DIRECTORY_TYPE_EXIF
&& tagInfo.directoryType == EXIF_DIRECTORY_EXIF_IFD)
return tagInfo;
else if (directoryType == DIRECTORY_TYPE_INTEROPERABILITY
&& tagInfo.directoryType == EXIF_DIRECTORY_INTEROP_IFD)
return tagInfo;
else if (directoryType == DIRECTORY_TYPE_GPS
&& tagInfo.directoryType == EXIF_DIRECTORY_GPS)
return tagInfo;
else if (directoryType == DIRECTORY_TYPE_MAKER_NOTES
&& tagInfo.directoryType == EXIF_DIRECTORY_MAKER_NOTES)
return tagInfo;
else if (directoryType == DIRECTORY_TYPE_DIR_0
&& tagInfo.directoryType == TIFF_DIRECTORY_IFD0)
return tagInfo;
else if (directoryType == DIRECTORY_TYPE_DIR_1
&& tagInfo.directoryType == TIFF_DIRECTORY_IFD1)
return tagInfo;
else if (directoryType == DIRECTORY_TYPE_DIR_2
&& tagInfo.directoryType == TIFF_DIRECTORY_IFD2)
return tagInfo;
else if (directoryType == DIRECTORY_TYPE_DIR_3
&& tagInfo.directoryType == TIFF_DIRECTORY_IFD3)
return tagInfo;
}
// accept an inexact match.
for (int i = 0; i < possibleMatches.size(); i++)
{
TagInfo tagInfo = (TagInfo) possibleMatches.get(i);
if (tagInfo.directoryType == EXIF_DIRECTORY_UNKNOWN)
// pass
continue;
else if (directoryType >= 0
&& tagInfo.directoryType.isImageDirectory())
return tagInfo;
else if (directoryType < 0
&& !tagInfo.directoryType.isImageDirectory())
return tagInfo;
}
// accept a wildcard match.
for (int i = 0; i < possibleMatches.size(); i++)
{
TagInfo tagInfo = (TagInfo) possibleMatches.get(i);
if (tagInfo.directoryType == EXIF_DIRECTORY_UNKNOWN)
return tagInfo;
}
// // accept a very rough match.
// for (int i = 0; i < possibleMatches.size(); i++)
// {
// TagInfo tagInfo = (TagInfo) possibleMatches.get(i);
// if (tagInfo.exifDirectory == EXIF_DIRECTORY_UNKNOWN)
// return tagInfo;
// else if (directoryType == DIRECTORY_TYPE_EXIF
// && tagInfo.exifDirectory == EXIF_DIRECTORY_EXIF_IFD)
// return tagInfo;
// else if (directoryType == DIRECTORY_TYPE_INTEROPERABILITY
// && tagInfo.exifDirectory == EXIF_DIRECTORY_INTEROP_IFD)
// return tagInfo;
// else if (directoryType == DIRECTORY_TYPE_GPS
// && tagInfo.exifDirectory == EXIF_DIRECTORY_GPS)
// return tagInfo;
// else if (directoryType == DIRECTORY_TYPE_MAKER_NOTES
// && tagInfo.exifDirectory == EXIF_DIRECTORY_MAKER_NOTES)
// return tagInfo;
// else if (directoryType >= 0
// && tagInfo.exifDirectory.isImageDirectory())
// return tagInfo;
// else if (directoryType < 0
// && !tagInfo.exifDirectory.isImageDirectory())
// return tagInfo;
// }
return TIFF_TAG_UNKNOWN;
// if (true)
// throw new Error("Why didn't this algorithm work?");
//
// {
// TagInfo tagInfo = (TagInfo) possibleMatches.get(0);
// return tagInfo;
// }
// Object key = new Integer(tag);
//
// if (directoryType == DIRECTORY_TYPE_EXIF
// || directoryType == DIRECTORY_TYPE_INTEROPERABILITY)
// {
// if (EXIF_TAG_MAP.containsKey(key))
// return (TagInfo) EXIF_TAG_MAP.get(key);
// }
// else if (directoryType == DIRECTORY_TYPE_GPS)
// {
// if (GPS_TAG_MAP.containsKey(key))
// return (TagInfo) GPS_TAG_MAP.get(key);
// }
// else
// {
// if (TIFF_TAG_MAP.containsKey(key))
// return (TagInfo) TIFF_TAG_MAP.get(key);
// }
//
// if (ALL_TAG_MAP.containsKey(key))
// return (TagInfo) ALL_TAG_MAP.get(key);
// public static final int DIRECTORY_TYPE_EXIF = -2;
// // public static final int DIRECTORY_TYPE_SUB = 5;
// public static final int DIRECTORY_TYPE_GPS = -3;
// public static final int DIRECTORY_TYPE_INTEROPERABILITY = -4;
//
// private static final Map GPS_TAG_MAP = makeTagMap(ALL_GPS_TAGS,
// false);
// private static final Map TIFF_TAG_MAP = makeTagMap(ALL_TIFF_TAGS,
// false);
// private static final Map EXIF_TAG_MAP = makeTagMap(ALL_EXIF_TAGS,
// false);
// private static final Map ALL_TAG_MAP = makeTagMap(ALL_TAGS, true);
//
// for (int i = 0; i < ALL_TAGS.length; i++)
// {
// TagInfo2 tag = ALL_TAGS[i];
// if (tag.tag == value)
// return tag;
// }
// return TIFF_TAG_UNKNOWN;
}
private static TagInfo getTag(int directoryType, int tag)
{
Object key = new Integer(tag);
List possibleMatches = (List) EXIF_TAG_MAP.get(key);
if (null == possibleMatches)
{
return TIFF_TAG_UNKNOWN;
}
TagInfo result = getTag(directoryType, tag, possibleMatches);
return result;
}
private int getValueLengthInBytes()
{
int unit_length = fieldType.length;
int valueLength = unit_length * length;
// Debug.debug("getValueLengthInBytes unit_length", unit_length);
// Debug.debug("getValueLengthInBytes length", length);
return valueLength;
}
public void fillInValue(ByteSource byteSource) throws ImageReadException,
IOException
{
if (fieldType.isLocalValue(this))
return;
int valueLength = getValueLengthInBytes();
// Debug.debug("fillInValue tag", tag);
// Debug.debug("fillInValue tagInfo", tagInfo);
// Debug.debug("fillInValue valueOffset", valueOffset);
// Debug.debug("fillInValue valueLength", valueLength);
byte bytes[] = byteSource.getBlock(valueOffset, valueLength);
setOversizeValue(bytes);
}
public String getValueDescription()
{
try
{
return getValueDescription(getValue());
} catch (ImageReadException e)
{
return "Invalid value: " + e.getMessage();
}
}
private String getValueDescription(Object o)
{
if (o == null)
return null;
if (o instanceof Number)
{
return o.toString();
} else if (o instanceof String)
{
return "'" + o.toString().trim() + "'";
} else if (o instanceof Date)
{
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
return df.format((Date) o);
} else if (o instanceof Object[])
{
Object objects[] = (Object[]) o;
StringBuffer result = new StringBuffer();
for (int i = 0; i < objects.length; i++)
{
Object object = objects[i];
if (i > 50)
{
result.append("... (" + objects.length + ")");
break;
}
if (i > 0)
result.append(", ");
result.append("" + object);
}
return result.toString();
}
// else if (o instanceof Number[])
// {
// Number numbers[] = (Number[]) o;
// StringBuffer result = new StringBuffer();
//
// for (int i = 0; i < numbers.length; i++)
// {
// Number number = numbers[i];
//
// if (i > 0)
// result.append(", ");
// result.append("" + number);
// }
// return result.toString();
// }
else if (o instanceof int[])
{
int values[] = (int[]) o;
StringBuffer result = new StringBuffer();
for (int i = 0; i < values.length; i++)
{
int value = values[i];
if (i > 50)
{
result.append("... (" + values.length + ")");
break;
}
if (i > 0)
result.append(", ");
result.append("" + value);
}
return result.toString();
} else if (o instanceof long[])
{
long values[] = (long[]) o;
StringBuffer result = new StringBuffer();
for (int i = 0; i < values.length; i++)
{
long value = values[i];
if (i > 50)
{
result.append("... (" + values.length + ")");
break;
}
if (i > 0)
result.append(", ");
result.append("" + value);
}
return result.toString();
} else if (o instanceof double[])
{
double values[] = (double[]) o;
StringBuffer result = new StringBuffer();
for (int i = 0; i < values.length; i++)
{
double value = values[i];
if (i > 50)
{
result.append("... (" + values.length + ")");
break;
}
if (i > 0)
result.append(", ");
result.append("" + value);
}
return result.toString();
} else if (o instanceof byte[])
{
byte values[] = (byte[]) o;
StringBuffer result = new StringBuffer();
for (int i = 0; i < values.length; i++)
{
byte value = values[i];
if (i > 50)
{
result.append("... (" + values.length + ")");
break;
}
if (i > 0)
result.append(", ");
result.append("" + value);
}
return result.toString();
} else if (o instanceof char[])
{
char values[] = (char[]) o;
StringBuffer result = new StringBuffer();
for (int i = 0; i < values.length; i++)
{
char value = values[i];
if (i > 50)
{
result.append("... (" + values.length + ")");
break;
}
if (i > 0)
result.append(", ");
result.append("" + value);
}
return result.toString();
} else if (o instanceof float[])
{
float values[] = (float[]) o;
StringBuffer result = new StringBuffer();
for (int i = 0; i < values.length; i++)
{
float value = values[i];
if (i > 50)
{
result.append("... (" + values.length + ")");
break;
}
if (i > 0)
result.append(", ");
result.append("" + value);
}
return result.toString();
}
// else if (o instanceof short[])
// {
// short numbers[] = (short[]) o;
// StringBuffer result = new StringBuffer();
//
// for (int i = 0; i < numbers.length; i++)
// {
// short number = numbers[i];
//
// if (i > 0)
// result.append(", ");
// result.append("" + number);
// }
// return result.toString();
// }
return "Unknown: " + o.getClass().getName();
}
public void dump()
{
PrintWriter pw = new PrintWriter(System.out);
dump(pw);
pw.flush();
}
public void dump(PrintWriter pw)
{
dump(pw, null);
}
public void dump(PrintWriter pw, String prefix)
{
if (prefix != null)
pw.print(prefix + ": ");
pw.println(toString());
pw.flush();
}
// private void errorDump()
// {
// Debug.debug("tagInfo", tagInfo);
// Debug.debug("fieldType", fieldType);
// Debug.debug("tag", tag);
// Debug.debug("type", type);
// Debug.debug("length", length);
// Debug.debug("valueOffset", valueOffset);
// Debug.debug("valueOffsetBytes", valueOffsetBytes);
// Debug.debug("oversizeValue", oversizeValue);
// Debug.debug("byteOrder", byteOrder);
// }
public String getDescriptionWithoutValue()
{
return tag + " (0x" + Integer.toHexString(tag) + ": " + tagInfo.name
+ "): ";
}
public String toString()
{
StringBuffer result = new StringBuffer();
result.append(tag + " (0x" + Integer.toHexString(tag) + ": "
+ tagInfo.name + "): ");
result.append(getValueDescription() + " (" + length + " "
+ fieldType.name + ")");
return result.toString();
}
public String getTagName()
{
if (tagInfo == TIFF_TAG_UNKNOWN)
return tagInfo.name + " (0x" + Integer.toHexString(tag) + ")";
return tagInfo.name;
}
public String getFieldTypeName()
{
return fieldType.name;
}
public static final String Attribute_Tag = "Tag";
public Object getValue() throws ImageReadException
{
// System.out.print("getValue");
return tagInfo.getValue(this);
}
public String getStringValue() throws ImageReadException
{
Object o = getValue();
if (o == null)
return null;
if (!(o instanceof String))
throw new ImageReadException("Expected String value("
+ tagInfo.getDescription() + "): " + o);
return (String) o;
}
private static final Map makeTagMap(TagInfo tags[],
boolean ignoreDuplicates, String name)
{
// make sure to use the thread-safe version; this is shared state.
Map map = new Hashtable();
for (int i = 0; i < tags.length; i++)
{
TagInfo tag = tags[i];
Object key = new Integer(tag.tag);
List tagList = (List) map.get(key);
if (tagList == null)
{
tagList = new ArrayList();
map.put(key, tagList);
}
tagList.add(tag);
// if (map.get(key) == null)
// map.put(key, tag);
// else if (!ignoreDuplicates)
// {
// System.out.println("Duplicate tag in " + name + ": " + tag.tag
// + " (0x" + Integer.toHexString(tag.tag) + ")");
// System.out.println("\t" + "New name: " + tag.name);
// System.out.println("\t" + "Old name: "
// + ((TagInfo) map.get(key)).name);
// }
}
return map;
}
private static final Map GPS_TAG_MAP = makeTagMap(ALL_GPS_TAGS, false,
"GPS");
private static final Map TIFF_TAG_MAP = makeTagMap(ALL_TIFF_TAGS, false,
"TIFF");
private static final Map EXIF_TAG_MAP = makeTagMap(ALL_EXIF_TAGS, true,
"EXIF");
private static final Map ALL_TAG_MAP = makeTagMap(ALL_TAGS, true, "All");
// static
// {
// Map map = new HashMap();
//
// for (int i = 0; i < ALL_TAGS.length; i++)
// {
// TagInfo2 tag = ALL_TAGS[i];
// Object o = map.get("" + tag.tag);
// if (o == null)
// map.put("" + tag.tag, tag);
// else
// {
// System.out.println("Duplicate tag: " + tag.tag);
// System.out.println("\t" + "New name: " + tag.name);
// System.out.println("\t" + "Old name: " + ((TagInfo2) o).name);
// }
// }
//
// }
// public static final TagInfo2 ALL_TAGS[] = TagConstantsUtils
// .mergeTagLists(new TagInfo2[][]{
// ALL_EXIF_TAGS, ALL_TIFF_TAGS, ALL_GPS_TAGS,
// });
//
//
public int[] getIntArrayValue() throws ImageReadException
{
Object o = getValue();
// if (o == null)
// return null;
if (o instanceof Number)
return new int[] { ((Number) o).intValue() };
else if (o instanceof Number[])
{
Number numbers[] = (Number[]) o;
int result[] = new int[numbers.length];
for (int i = 0; i < numbers.length; i++)
result[i] = numbers[i].intValue();
return result;
} else if (o instanceof int[])
{
int numbers[] = (int[]) o;
int result[] = new int[numbers.length];
for (int i = 0; i < numbers.length; i++)
result[i] = numbers[i];
return result;
}
throw new ImageReadException("Unknown value: " + o + " for: "
+ tagInfo.getDescription());
// return null;
}
public double[] getDoubleArrayValue() throws ImageReadException
{
Object o = getValue();
// if (o == null)
// return null;
if (o instanceof Number)
{
return new double[] { ((Number) o).doubleValue() };
} else if (o instanceof Number[])
{
Number numbers[] = (Number[]) o;
double result[] = new double[numbers.length];
for (int i = 0; i < numbers.length; i++)
result[i] = numbers[i].doubleValue();
return result;
} else if (o instanceof int[])
{
int numbers[] = (int[]) o;
double result[] = new double[numbers.length];
for (int i = 0; i < numbers.length; i++)
result[i] = numbers[i];
return result;
} else if (o instanceof float[])
{
float numbers[] = (float[]) o;
double result[] = new double[numbers.length];
for (int i = 0; i < numbers.length; i++)
result[i] = numbers[i];
return result;
} else if (o instanceof double[])
{
double numbers[] = (double[]) o;
double result[] = new double[numbers.length];
for (int i = 0; i < numbers.length; i++)
result[i] = numbers[i];
return result;
}
throw new ImageReadException("Unknown value: " + o + " for: "
+ tagInfo.getDescription());
// return null;
}
public int getIntValueOrArraySum() throws ImageReadException
{
Object o = getValue();
// if (o == null)
// return -1;
if (o instanceof Number)
return ((Number) o).intValue();
else if (o instanceof Number[])
{
Number numbers[] = (Number[]) o;
int sum = 0;
for (int i = 0; i < numbers.length; i++)
sum += numbers[i].intValue();
return sum;
} else if (o instanceof int[])
{
int numbers[] = (int[]) o;
int sum = 0;
for (int i = 0; i < numbers.length; i++)
sum += numbers[i];
return sum;
}
throw new ImageReadException("Unknown value: " + o + " for: "
+ tagInfo.getDescription());
// return -1;
}
public int getIntValue() throws ImageReadException
{
Object o = getValue();
if (o == null)
throw new ImageReadException("Missing value: "
+ tagInfo.getDescription());
return ((Number) o).intValue();
}
public double getDoubleValue() throws ImageReadException
{
Object o = getValue();
if (o == null)
throw new ImageReadException("Missing value: "
+ tagInfo.getDescription());
return ((Number) o).doubleValue();
}
public byte[] getByteArrayValue() throws ImageReadException
{
return fieldType.getRawBytes(this);
}
public int getSortHint()
{
return sortHint;
}
public void setSortHint(int sortHint)
{
this.sortHint = sortHint;
}
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