/*
 * Copyright 2002-2015 Drew Noakes
 *
 *    Licensed 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.
 *
 * More information about this project is available at:
 *
 *    https://drewnoakes.com/code/exif/
 *    https://github.com/drewnoakes/metadata-extractor
 */
package com.drew.imaging.tiff;

import com.drew.lang.RandomAccessFileReader;
import com.drew.lang.RandomAccessStreamReader;
import com.drew.lang.annotations.NotNull;
import com.drew.metadata.Metadata;
import com.drew.metadata.exif.ExifReader;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;

/**
 * Obtains all available metadata from TIFF formatted files.  Note that TIFF files include many digital camera RAW
 * formats, including Canon (CRW, CR2), Nikon (NEF), Olympus (ORF) and Panasonic (RW2).
 *
 * @author Darren Salomons, Drew Noakes https://drewnoakes.com
 */
public class TiffMetadataReader
{
    @NotNull
    public static Metadata readMetadata(@NotNull File file) throws IOException
    {
        Metadata metadata = new Metadata();
        RandomAccessFile randomAccessFile = new RandomAccessFile(file, "r");

        try {
            new ExifReader().extractTiff(new RandomAccessFileReader(randomAccessFile), metadata);
        } finally {
            randomAccessFile.close();
        }

        return metadata;
    }

    @NotNull
    public static Metadata readMetadata(@NotNull InputStream inputStream)
    {
        // TIFF processing requires random access, as directories can be scattered throughout the byte sequence.
        // InputStream does not support seeking backwards, and so is not a viable option for TIFF processing.
        // We use RandomAccessStreamReader, which buffers data from the stream as we seek forward.

        Metadata metadata = new Metadata();
        new ExifReader().extractTiff(new RandomAccessStreamReader(inputStream), metadata);
        return metadata;
    }
}

@@ -1012,20 +1012,25 @@
 xif.Exif
-Read
+TiffHandl
 er;%0A%0Aimp
@@ -1373,17 +1373,27 @@
 Salomons
-,
+%0A * @author
  Drew No
@@ -1549,16 +1549,41 @@
 xception
+, TiffProcessingException
 %0A    %7B%0A 
@@ -1721,39 +1721,115 @@
 y %7B%0A            
-new Exi
+ExifTiffHandler handler = new ExifTiffHandler(metadata, false);%0A            new Tif
 fReader().extrac
@@ -1814,39 +1814,39 @@
 ew TiffReader().
-extract
+process
 Tiff(new RandomA
@@ -1880,24 +1880,26 @@
 sFile), 
-metadata
+handler, 0
 );%0A     
@@ -2080,16 +2080,60 @@
 tStream)
+ throws IOException, TiffProcessingException
 %0A    %7B%0A 
@@ -2307,76 +2307,26 @@
 ds, 
-and so is not a viable option for TIFF processing.%0A        // We use
+so we wrap it with
  Ran
@@ -2353,16 +2353,27 @@
 r, which
+%0A        //
  buffers
@@ -2467,23 +2467,95 @@
         
-new Exi
+ExifTiffHandler handler = new ExifTiffHandler(metadata, false);%0A        new Tif
 fReader(
@@ -2556,23 +2556,23 @@
 eader().
-extract
+process
 Tiff(new
@@ -2611,24 +2611,26 @@
 tream), 
-metadata
+handler, 0
 );%0A     

Remove duplicated code from ExifReader by reusing TiffReader (#26).