package?cn.adtex.common.kwm.util;

import?java.io.File;
import?java.io.FileNotFoundException;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.io.OutputStream;
import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.Comparator;

import?javax.media.jai.JAI;
import?javax.media.jai.PlanarImage;

import?cn.adtex.common.component.exception.ErrCodes;
import?cn.adtex.common.component.exception.TxnException;
import?cn.adtex.common.kwm.CommonErrCodes;

import?com.sun.media.jai.codec.FileSeekableStream;
import?com.sun.media.jai.codec.ImageCodec;
import?com.sun.media.jai.codec.ImageEncoder;
import?com.sun.media.jai.codec.TIFFEncodeParam;

/**
?*?
?*?@author?maojk
?*
?*/
public?class?TifUtil?{
	/**
	?*?@param?tzsPath
	?*?@throws?TxnException
	?*/
	public?static?final?void?processTifFile（String?workPath）?throws?TxnException?{
		String?inWorkPath?=?workPath;
		if（!inWorkPath.endsWith（“/“））?{
			inWorkPath?=?inWorkPath?+?“/“;
		}
		File?workFile?=?new?File（inWorkPath）;
		File[]?fileList?=?workFile.listFiles（）;
		ArrayList?tifFiles?=?new?ArrayList（）;
		for?（File?file?:?fileList）?{
			if?（file.isDirectory（））?{
				TifUtil.processTifFile（file.getAbsolutePath（））;
			}?else?{
				String?fileName?=?file.getName（）;
				if?（fileName.endsWith（“.tif“）?||?fileName.endsWith（“.tiff“））?{
					tifFiles.add（fileName）;
				}
			}
		}

		if?（!tifFiles.isEmpty（））?{
			Collections.sort（tifFiles?new?TifUtil.TifFileNameComparator（））;
			PlanarImage?firstPage?=?null;
			OutputStream?os?=?null;
			ArrayList?pages?=?new?ArrayList（）;
			ArrayList?streams?=?new?ArrayList（）;
			String?tifFile?=?null;
			try?{
				for?（int?i?=?0;?i?					tifFile?=?tifFiles.get（i）;
					FileSeekableStream?stream?=?new?FileSeekableStream（
							inWorkPath?+?tifFile）;
					streams.add（stream）;
					if?（i?==?0）?{
						firstPage?=?JAI.create（“stream“?stream）;
					}?else?{
						PlanarImage?page?=?JAI.create（“stream“?stream）;
						pages.add（page）;
					}
				}

				TIFFEncodeParam?param?=?new?TIFFEncodeParam（）;
				param.setCompression（TIFFEncodeParam.COMPRESSION_GROUP4）;//增加壓縮屬性，防止文件生成過大
				os?=?new?FileOutputStream（inWorkPath?+?“merge.tiff“）;
				ImageEncoder?enc?=?ImageCodec.createImageEncoder（“tiff“?os
						param）;
				param.setExtraImages（pages.iterator（））;
				enc.encode（firstPage）;
			}?catch?（FileN