org.jpedal.io.ObjectStore Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of OpenViewerFX Show documentation
Show all versions of OpenViewerFX Show documentation
An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2015 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* ObjectStore.java
* ---------------
*/
package org.jpedal.io;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.jpedal.examples.handlers.DefaultImageHelper;
import org.jpedal.utils.LogWriter;
import org.jpedal.utils.Strip;
/**
* set of methods to save/load objects to keep memory
* usage to a minimum by spooling images to disk
* Also includes ancillary method to store a filename -
* LogWriter is my logging class -
* Several methods are very similar and I should recode
* my code to use a common method for the RGB conversion
*
*/
public class ObjectStore {
/** added by MArk to hunt down bug for Adobe - 21832)*/
private static final boolean debugAdobe=false;
/**list of files to delete*/
private static final Map undeletedFiles=new HashMap();
/**do not set unless you know what you are doing*/
@SuppressWarnings({"WeakerAccess"})
public static boolean isMultiThreaded;
/**debug page cache*/
private static final boolean debugCache=false;
/**ensure we check for 'dead' files only once per session*/
private static boolean checkedThisSession;
/**correct separator for platform program running on*/
private static final String separator = System.getProperty("file.separator");
/**file being decoded at present -used byOXbjects and other classes*/
private String currentFilename = "",currentFilePath="";
/**temp storage for the images so they are not held in memory */
@SuppressWarnings({"WeakerAccess"})
public static String temp_dir ="";
@SuppressWarnings({"WeakerAccess"})
public static final String multiThreaded_root_dir=null;
/**temp storage for raw CMYK images*/
private static final String cmyk_dir = temp_dir + "cmyk" + separator;
/**key added to each file to make sure unique to pdf being handled*/
private String key = "jpedal"+Math.random()+ '_';
/** track whether image saved as tif or jpg*/
private final Map image_type = new HashMap();
/**
* map to hold file names
*/
private final Map tempFileNames = new HashMap();
/**parameter stored on cached images*/
public static final Integer IMAGE_WIDTH= 1;
/**parameter stored on cached images*/
public static final Integer IMAGE_HEIGHT= 2;
/**parameter stored on cached images*/
public static final Integer IMAGE_pX= 3;
/**parameter stored on cached images*/
public static final Integer IMAGE_pY= 4;
/**paramter stored on cached images*/
public static final Integer IMAGE_MASKCOL= 5;
/**paramter stored on cached images*/
public static final Integer IMAGE_COLORSPACE= 6;
/**period after which we assumes files must be dead (ie from crashed instance)
* default is four hour image time*/
@SuppressWarnings({"WeakerAccess"})
public static final long time = 14400000 ;
public String fullFileName;
//list of cached pages
private static final Map pagesOnDisk=new HashMap();
private static final Map pagesOnDiskAsBytes=new HashMap();
//list of images on disk
private final Map imagesOnDiskAsBytes=new HashMap();
private final Map imagesOnDiskAsBytesW=new HashMap();
private final Map imagesOnDiskAsBytesH=new HashMap();
private final Map imagesOnDiskAsBytespX=new HashMap();
private final Map imagesOnDiskAsBytespY=new HashMap();
private final Map imagesOnDiskMask=new HashMap();
private final Map imagesOnDiskColSpaceID=new HashMap();
/**
* ObjectStore -
* Converted for Threading purposes -
* To fix any errors please try replacing
* ObjectStore with
* {your instance of PdfDecoder}.getObjectStore() -
*
*/
public ObjectStore(){
init();
}
private static void init() {
try{
//if user has not set static value already, use tempdir
if(temp_dir.isEmpty()) {
temp_dir = System.getProperty("java.io.tmpdir");
}
if(isMultiThreaded){ //public static variable to ensure unique
if(multiThreaded_root_dir!=null) {
temp_dir = multiThreaded_root_dir + separator + "jpedal-" + System.currentTimeMillis() + separator;
} else {
temp_dir = temp_dir + separator + "jpedal-" + System.currentTimeMillis() + separator;
}
}else if(temp_dir.isEmpty()) {
temp_dir = temp_dir + separator + "jpedal" + separator;
} else if(!temp_dir.endsWith(separator)) {
temp_dir += separator;
}
//create temp dir if it does not exist
final File f = new File(temp_dir);
if (!f.exists()) {
f.mkdirs();
}
if(isMultiThreaded) {
f.deleteOnExit();
}
}catch(final Exception e){
LogWriter.writeLog("Unable to create temp dir at " + temp_dir+ ' ' +e);
}
}
/**
* Get the file name - we use this as a get in our file repository -
*
* Note this method is not part of the API and is not guaranteed to
* be in future versions of JPedal -
*
* @return String
*/
public String getCurrentFilename() {
return currentFilename;
}
/**
* Get the file path for current PDF
*
* Note this method is not part of the API and is not guaranteed to
* be in future versions of JPedal -
*
* @return String
*/
public String getCurrentFilepath() {
return currentFilePath;
}
/**
* store filename as a key we can use to differentiate images,etc -
* Note this method is not part of the API and is not guaranteed to
* be in future versions of JPedal -
*
* @param name is of type String
*/
public final void storeFileName(String name) {
//System.err.println("7");
//name = removeIllegalFileNameCharacters(name);
fullFileName=name;
//get path
int ptr=fullFileName.lastIndexOf('/');
final int ptr2=fullFileName.lastIndexOf('\\');
if(ptr2>ptr) {
ptr = ptr2;
}
if(ptr>0) {
currentFilePath = fullFileName.substring(0, ptr + 1);
} else {
currentFilePath = "";
}
/**
* work through to get last / or \
* first we make sure there is one in the name.
* We could use the properties to get the correct value but the
* user can still use the Windows format under Unix
*/
int temp_pointer = name.indexOf('\\');
if (temp_pointer == -1) //runs on either Unix or Windows!!!
{
temp_pointer = name.indexOf('/');
}
while (temp_pointer != -1) {
name = name.substring(temp_pointer + 1);
temp_pointer = name.indexOf('\\');
if (temp_pointer == -1) //runs on either Unix or Windows!!!
{
temp_pointer = name.indexOf('/');
}
}
/**strip any ending from name*/
final int pointer = name.lastIndexOf('.');
if (pointer != -1) {
name = name.substring(0, pointer);
}
/**remove any spaces using my own class and enforce lower case*/
name = Strip.stripAllSpaces(name);
currentFilename = name.toLowerCase();
//System.err.println("8");
}
/**
* save raw CMYK data in CMYK directory - We extract the DCT encoded image
* stream and save as a file with a .jpeg ending so we have the raw image -
* This works for DeviceCMYK -
*
* @param image_data is of type byte[]
* @param name is of type String
* @return boolean
*/
public boolean saveRawCMYKImage(final byte[] image_data, String name) {
//assume successful
boolean isSuccessful=true;
name = removeIllegalFileNameCharacters(name);
/**create/check directories exists*/
final File cmyk_d = new File(cmyk_dir);
if (!cmyk_d.exists()) {
cmyk_d.mkdirs();
}
/**stream the data out - not currently Buffered*/
try {
final FileOutputStream a =new FileOutputStream(cmyk_dir + name + ".jpg");
tempFileNames.put(cmyk_dir + name + ".jpg","#");
a.write(image_data);
a.flush();
a.close();
} catch (final Exception e) {
LogWriter.writeLog("Unable to save CMYK jpeg " + name+ ' ' +e);
isSuccessful=false;
}
return isSuccessful;
}
/**
* save buffered image as JPEG or tif
*
* @param current_image is of type String
* @param image is of type BufferedImage
* @param file_name_is_path is of type boolean
* @param save_unclipped is of type boolean
* @param type is of type String
* @return boolean
*/
public final synchronized boolean saveStoredImage(
String current_image,
BufferedImage image,
final boolean file_name_is_path,
final boolean save_unclipped,
final String type) {
boolean was_error = false;
if(debugAdobe){
System.out.println("Save "+current_image);
}
current_image = removeIllegalFileNameCharacters(current_image);
//if(image.getType()==1)
//image=stripAlpha(image);
final int type_id = image.getType();
//make sure temp directory exists
final File checkDir = new File(temp_dir);
if (!checkDir.exists()) {
checkDir.mkdirs();
}
//save image and id so we can reload
if (type.contains("tif")) {
if (((type_id == 1 || type_id == 2))&&(!current_image.contains("HIRES_"))) {
image = ColorSpaceConvertor.convertColorspace(image, BufferedImage.TYPE_3BYTE_BGR);
}
if (!file_name_is_path) {
image_type.put(current_image, "tif");
}
was_error =saveStoredImage( "TIFF", ".tif", ".tiff", current_image, image, file_name_is_path, save_unclipped);
} else if (type.contains("jpg")) {
if (!file_name_is_path) {
image_type.put(current_image, "jpg");
}
was_error =saveStoredJPEGImage( current_image, image, file_name_is_path, save_unclipped);
} else if (type.contains("png")) {
if (!file_name_is_path) {
image_type.put(current_image, "png");
}
was_error = saveStoredImage( "PNG", ".png", ".png", current_image, image, file_name_is_path, save_unclipped);
}
return was_error;
}
/**
* get type of image used to store graphic.
*
* @param current_image is of type String
* @return String
*/
public final String getImageType(final String current_image) {
return (String) image_type.get(current_image);
}
/**
* init method to pass in values for temp directory, unique key,
* etc so program knows where to store files.
*
* @param current_key is of type String
*/
public final void init(final String current_key) {
key = current_key+System.currentTimeMillis();
//create temp dir if it does not exist
final File f = new File(temp_dir);
if (!f.exists()) {
f.mkdirs();
}
}
/**
* load a image when required and remove from store
*
* @param current_image is of type String
* @return BufferedImage
*/
public final synchronized BufferedImage loadStoredImage(String current_image) {
if(current_image==null) {
return null;
}
current_image = removeIllegalFileNameCharacters(current_image);
//see if jpg
final String flag = (String) image_type.get(current_image);
BufferedImage image = null;
if (flag == null) {
return null;
} else if (flag.equals("tif")) {
image = loadStoredImage(current_image, ".tif");
} else if (flag.equals("jpg")) {
image = loadStoredJPEGImage(current_image);
} else if (flag.equals("png")) {
image = loadStoredImage(current_image, ".png");
}
return image;
}
/**
* routine to remove all objects from temp store
*
*/
public final synchronized void flush() {
if(debugAdobe){
System.out.println("Flush files on close");
}
/**
* flush any image data serialized as bytes
*/
Iterator filesTodelete = imagesOnDiskAsBytes.keySet().iterator();
while(filesTodelete.hasNext()) {
final Object file = filesTodelete.next();
if(file!=null){
final File delete_file = new File((String)imagesOnDiskAsBytes.get(file));
if(delete_file.exists()) {
delete_file.delete();
}
}
}
/**/
imagesOnDiskAsBytes.clear();
imagesOnDiskAsBytesW.clear();
imagesOnDiskAsBytesH.clear();
imagesOnDiskAsBytespX.clear();
imagesOnDiskAsBytespY.clear();
imagesOnDiskMask.clear();
imagesOnDiskColSpaceID.clear();
/**/
filesTodelete = tempFileNames.keySet().iterator();
while(filesTodelete.hasNext()) {
final String file = ((String)filesTodelete.next());
if (file.contains(key)) {
//System.out.println("temp_dir="+temp_dir);
final File delete_file = new File(file);
if(debugAdobe){
System.out.println("Delete "+file);
}
//delete_file.delete();
if (delete_file.delete()) {
filesTodelete.remove();
} else //bug in Java stops files being deleted
{
undeletedFiles.put(key, "x");
if(debugAdobe){
System.out.println("Filed to Delete "+file);
}
}
}
}
try{
//if setup then flush temp dir
if (!checkedThisSession && temp_dir.length() > 2) {
checkedThisSession=true;
//get contents
/**/
final File temp_files = new File(temp_dir);
final String[] file_list = temp_files.list();
final File[] to_be_del = temp_files.listFiles();
if (file_list != null) {
for (int ii = 0; ii < file_list.length; ii++) {
if (file_list[ii].contains(key)) {
final File delete_file = new File(temp_dir + file_list[ii]);
delete_file.delete();
}
//can we also delete any file more than 4 hours old here
//its a static variable so user can change
//flag to turn the redundant obj deletion on/off
final boolean delOldFiles = true;
if((delOldFiles) && (!file_list[ii].endsWith(".pdf") && (System.currentTimeMillis()-to_be_del[ii].lastModified() >= time))){
//System.out.println("File time : " + to_be_del[ii].lastModified() );
//System.out.println("Current time: " + System.currentTimeMillis());
//System.out.println("Redundant File Removed : " + to_be_del[ii].getName() );
to_be_del[ii].delete();
}
}
}
/*
//suggested by Manuel to ensure flushes correctly
//System.gc();
Iterator filesTodelete = tempFileNames.keySet().iterator();
while(filesTodelete.hasNext()) {
String file = ((String)filesTodelete.next());
if (file.indexOf(key) != -1) {
File delete_file = new File(file);
//System.out.println("Delete "+file);
//delete_file.delete();
//suggested by Manuel to ensure flushes correctly
if (delete_file.delete()) filesTodelete.remove();
}
}
/**/
}
/**flush cmyk directory as well*/
final File cmyk_d = new File(cmyk_dir);
if (cmyk_d.exists()) {
/* boolean filesExist = false;
String[] file_list = cmyk_d.list();
for (int ii = 0; ii < file_list.length; ii++) {
File delete_file = new File(cmyk_dir + file_list[ii]);
delete_file.delete();
//make sure deleted
if (delete_file.exists())
filesExist = true;
}
*/
cmyk_d.delete();
/* if (filesExist)
LogWriter.writeLog("CMYK files not deleted at end");
*/
}
}catch(final Exception e){
LogWriter.writeLog("Exception " + e + " flushing files");
}
}
/**
* copies cmyk raw data from cmyk temp dir to target directory.
*
* @param target_dir is of type String
*/
public static void copyCMYKimages(String target_dir) {
final File cmyk_d = new File(cmyk_dir);
if (cmyk_d.exists()) {
final String[] file_list = cmyk_d.list();
if (file_list.length > 0) {
/**check separator on target dir and exists*/
if (!target_dir.endsWith(separator)) {
target_dir += separator;
}
final File test_d = new File(target_dir);
if (!test_d.exists()) {
test_d.mkdirs();
}
}
for (final String aFile_list : file_list) {
final File source = new File(cmyk_dir + aFile_list);
final File dest = new File(target_dir + aFile_list);
source.renameTo(dest);
}
}
}
/**
* save buffered image as JPEG
*/
private synchronized boolean saveStoredJPEGImage(final String current_image, final BufferedImage image, final boolean file_name_is_path, final boolean save_unclipped) {
final boolean was_error = false;
//generate path name or use
//value supplied by user
String file_name = current_image;
String unclipped_file_name = "";
if (!file_name_is_path) {
file_name = temp_dir + key + current_image;
unclipped_file_name = temp_dir + key + 'R' + current_image;
//log the type in our table so we can lookup
image_type.put('R' + current_image, image_type.get(current_image));
}
//add ending if needed
if ((!file_name.toLowerCase().endsWith(".jpg"))
&& (!file_name.toLowerCase().endsWith(".jpeg"))) {
file_name += ".jpg";
unclipped_file_name += ".jpg";
}
/**
* fudge to write out high quality then try low if failed
*/
try { //write out data to create image in temp dir
DefaultImageHelper.write(image,"jpg",file_name);
tempFileNames.put(file_name,"#");
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " writing image " + image + " as " + file_name);
}
//save unclipped copy or make sure only original
if (save_unclipped){
saveCopy(file_name, unclipped_file_name);
tempFileNames.put(unclipped_file_name,"#");
}
return was_error;
}
public String getFileForCachedImage(final String current_image) {
return temp_dir + key + current_image + '.' +image_type.get(current_image);
}
/**
* load a image when required and remove from store
*/
private synchronized BufferedImage loadStoredImage(
String current_image,
final String ending) {
current_image = removeIllegalFileNameCharacters(current_image);
final String file_name = temp_dir + key + current_image + ending;
//load the image to process
return DefaultImageHelper.read(file_name);
}
/**
* save copy
*/
private static void saveCopy(final String source, final String destination) {
BufferedInputStream from = null;
BufferedOutputStream to = null;
try {
//create streams
from = new BufferedInputStream(new FileInputStream(source));
to = new BufferedOutputStream(new FileOutputStream(destination));
//write
final byte[] buffer = new byte[65535];
int bytes_read;
while ((bytes_read = from.read(buffer)) != -1) {
to.write(buffer, 0, bytes_read);
}
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " copying file");
}
//close streams
try {
to.close();
from.close();
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " closing files");
}
}
/**
* Save a Copy.
*
* @param current_image is of type String
* @param destination is of type String
*/
public final void saveAsCopy(
String current_image,
final String destination) {
BufferedInputStream from = null;
BufferedOutputStream to = null;
current_image = removeIllegalFileNameCharacters(current_image);
final String source = temp_dir + key + current_image;
try {
//create streams
from = new BufferedInputStream(new FileInputStream(source));
to = new BufferedOutputStream(new FileOutputStream(destination));
//write
final byte[] buffer = new byte[65535];
int bytes_read;
while ((bytes_read = from.read(buffer)) != -1) {
to.write(buffer, 0, bytes_read);
}
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " copying file");
}
//close streams
try {
to.close();
from.close();
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " closing files");
}
}
/**
* Save Copy.
*
* @param source is of type String.
* @param destination is of type String.
*/
public static void copy(
final String source,
final String destination) {
BufferedInputStream from = null;
BufferedOutputStream to = null;
try {
//create streams
from = new BufferedInputStream(new FileInputStream(source));
to = new BufferedOutputStream(new FileOutputStream(destination));
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " copying file");
}
copy(from, to);
}
public static void copy(final BufferedInputStream from, final BufferedOutputStream to) {
try{
//write
final byte[] buffer = new byte[65535];
int bytes_read;
while ((bytes_read = from.read(buffer)) != -1) {
to.write(buffer, 0, bytes_read);
}
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " copying file");
}
//close streams
try {
to.close();
from.close();
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " closing files");
}
}
/**
* load a image when required and remove from store
*/
private synchronized BufferedImage loadStoredJPEGImage(final String current_image) {
final String file_name = temp_dir + key + current_image + ".jpg";
//load the image to process
BufferedImage image = null;
final File a = new File(file_name);
if (a.exists()) {
try {
image=DefaultImageHelper.read(file_name);
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " loading " + current_image);
}
} else {
image = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
}
return image;
}
/**
* save buffered image
*/
private synchronized boolean saveStoredImage(
final String format,
final String ending1,
final String ending2,
String current_image,
BufferedImage image,
final boolean file_name_is_path,
final boolean save_unclipped) {
boolean was_error = false;
//generate path name or use
//value supplied by user
current_image = removeIllegalFileNameCharacters(current_image);
String file_name = current_image;
String unclipped_file_name = "";
if (!file_name_is_path) {
file_name = temp_dir + key + current_image;
unclipped_file_name = temp_dir + key + 'R' + current_image;
//log the type in our table so we can lookup
image_type.put('R' + current_image, image_type.get(current_image));
}
//add ending if needed
if ((!file_name.toLowerCase().endsWith(ending1))
&& (!file_name.toLowerCase().endsWith(ending2))) {
file_name += ending1;
unclipped_file_name += ending1;
}
try { //write out data to create image in temp dir
if(format.equals("TIFF")) // imageIO has issue in tiffs
{
DefaultImageHelper.write(image, "png", file_name);
} else {
DefaultImageHelper.write(image, format, file_name);
}
//if it failed retry as RGB
final File f=new File(file_name);
if(f.length()==0){
image=ColorSpaceConvertor.convertToRGB(image);
if(format.equals("TIFF")) //imageIO has issue in tiffs
{
DefaultImageHelper.write(image, "png", file_name);
} else {
DefaultImageHelper.write(image, format, file_name);
}
}
tempFileNames.put(file_name,"#");
} catch (final Exception e) {
LogWriter.writeLog(" Exception " + e + " writing image " + image + " with type " + image.getType());
was_error = true;
}catch (final Error ee) {
LogWriter.writeLog("Error " + ee + " writing image " + image + " with type " + image.getType());
was_error = true;
}
//save unclipped copy
if (save_unclipped){
saveCopy(file_name, unclipped_file_name);
tempFileNames.put(unclipped_file_name,"#");
}
return was_error;
}
/**
* delete all cached pages
*/
public static synchronized void flushPages(){
try{
Iterator filesTodelete = pagesOnDisk.keySet().iterator();
while(filesTodelete.hasNext()) {
final Object file = filesTodelete.next();
if(file!=null){
final File delete_file = new File((String)pagesOnDisk.get(file));
if(delete_file.exists()) {
delete_file.delete();
}
}
}
pagesOnDisk.clear();
/**
* flush any pages serialized as bytes
*/
filesTodelete = pagesOnDiskAsBytes.keySet().iterator();
while(filesTodelete.hasNext()) {
final Object file = filesTodelete.next();
if(file!=null){
final File delete_file = new File((String)pagesOnDiskAsBytes.get(file));
if(delete_file.exists()) {
delete_file.delete();
}
}
}
pagesOnDiskAsBytes.clear();
if(debugCache) {
System.out.println("Flush cache ");
}
}catch(final Exception e){
LogWriter.writeLog("Exception " + e + " flushing files");
}
}
@Override
protected void finalize(){
try {
super.finalize();
} catch (final Throwable e) {
LogWriter.writeLog("Exception: " + e.getMessage());
}
flush();
/**
* try to redelete files again
*/
for (final Object o : undeletedFiles.keySet()) {
final String file = ((String) o);
final File delete_file = new File(file);
if (delete_file.delete()) {
undeletedFiles.remove(file);
}
}
}
public static byte[] getCachedPageAsBytes(final String key) {
byte[] data=null;
final Object cachedFile= pagesOnDiskAsBytes.get(key);
if(cachedFile!=null){
final BufferedInputStream from;
try {
final File fis=new File((String)cachedFile);
from = new BufferedInputStream(new FileInputStream(fis));
data=new byte[(int)fis.length()];
from.read(data);
from.close();
//
} catch (final Exception e) {
LogWriter.writeLog("Exception: " + e.getMessage());
}
}
return data;
}
public static void cachePageAsBytes(final String key, final byte[] bytes) {
try {
//if you already use key, delete it first now
//as will not be removed otherwise
if(pagesOnDiskAsBytes.containsKey(key)){
final File delete_file = new File((String)pagesOnDiskAsBytes.get(key));
if(delete_file.exists()){
delete_file.delete();
}
}
final File ff=File.createTempFile("bytes",".bin", new File(ObjectStore.temp_dir));
//ff.deleteOnExit();
final BufferedOutputStream to = new BufferedOutputStream(new FileOutputStream(ff));
to.write(bytes);
to.flush();
to.close();
//save to delete at end
pagesOnDiskAsBytes.put(key,ff.getAbsolutePath());
if(debugCache) {
System.out.println("save to cache " + key + ' ' + ff.getAbsolutePath());
}
} catch (final Exception e) {
LogWriter.writeLog("Exception: " + e.getMessage());
}
}
public void saveRawImageData(final String pageImgCount, final byte[] bytes, final int w, final int h, final int pX, final int pY, final byte[] maskCol, final int colorSpaceID) {
try {
//System.out.println("ObjectStore.temp_dir="+ObjectStore.temp_dir);
final File ff=File.createTempFile("image",".bin", new File(ObjectStore.temp_dir));
//ff.deleteOnExit();
final BufferedOutputStream to = new BufferedOutputStream(new FileOutputStream(ff));
to.write(bytes);
to.flush();
to.close();
final Integer key=Integer.valueOf(pageImgCount);
imagesOnDiskAsBytes.put(key,ff.getAbsolutePath());
imagesOnDiskAsBytesW.put(key, w);
imagesOnDiskAsBytesH.put(key, h);
imagesOnDiskAsBytespX.put(key, pX);
imagesOnDiskAsBytespY.put(key, pY);
imagesOnDiskMask.put(key,maskCol);
imagesOnDiskColSpaceID.put(key, colorSpaceID);
if(debugCache) {
System.out.println("save to image cache " + pageImgCount + ' ' + ff.getAbsolutePath());
}
} catch (final Exception e) {
LogWriter.writeLog("Exception: " + e.getMessage());
}
}
/**
* see if image data saved.
* @param number is of type String
* @return boolean
*/
public boolean isRawImageDataSaved(final String number) {
//System.out.println("isSaved="+imagesOnDiskAsBytes.get(new Integer(number))!=null);
return imagesOnDiskAsBytes.get(Integer.valueOf(number))!=null;
}
/**
* Retrieve byte data on disk.
*
* @param i is of type String
* @return byte[]
*/
public byte[] getRawImageData(final String i) {
byte[] data=null;
final Object cachedFile= imagesOnDiskAsBytes.get(Integer.valueOf(i));
if(cachedFile!=null){
final BufferedInputStream from;
try {
final File fis=new File((String)cachedFile);
from = new BufferedInputStream(new FileInputStream(fis));
data=new byte[(int)fis.length()];
from.read(data);
from.close();
//
} catch (final Exception e) {
LogWriter.writeLog("Exception: " + e.getMessage());
}
}
return data;
}
/**
* Return parameter stored for image or null.
* @param imageID is of type String
* @param key is of type Integer
* @return Object
*/
public Object getRawImageDataParameter(final String imageID, final Integer key) {
if(key.equals(IMAGE_WIDTH)){
return imagesOnDiskAsBytesW.get(Integer.valueOf(imageID));
}else if(key.equals(IMAGE_HEIGHT)){
return imagesOnDiskAsBytesH.get(Integer.valueOf(imageID));
}else if(key.equals(IMAGE_pX)){
return imagesOnDiskAsBytespX.get(Integer.valueOf(imageID));
}else if(key.equals(IMAGE_pY)){
return imagesOnDiskAsBytespY.get(Integer.valueOf(imageID));
}else if(key.equals(IMAGE_MASKCOL)){
return imagesOnDiskMask.get(Integer.valueOf(imageID));
}else if(key.equals(IMAGE_COLORSPACE)){
return imagesOnDiskColSpaceID.get(Integer.valueOf(imageID));
}else {
return null;
}
}
public static File createTempFile(final String filename) throws IOException {
final File tempURLFile;
String suffix;
StringBuilder prefix=new StringBuilder(filename.substring(0, filename.lastIndexOf('.')));
while(prefix.length()<3) {
prefix.append('a');
}
suffix=filename.substring(filename.lastIndexOf('.'));
if(suffix.length()<3) {
suffix = "pdf";
}
tempURLFile = File.createTempFile(prefix.toString(), suffix,new File(ObjectStore.temp_dir));
return tempURLFile;
}
/**
* Remove troublesome characters from temp file names.
*
* @param s is of type String
* @return String
*/
public static String removeIllegalFileNameCharacters(final String s)
{
//Disabled for the time being. See case 9311 case 9316.
// //reduce scope of fix for windows path used as Name of image
// //as it breaks other files
// if(s.indexOf(":")!=-1){//use indexOf!=-1 instead of contains for compatability with JAVAME
// //s = s.replace('\\', '_');
// s = s.replace('/', '_');
// s = s.replace(':', '_');
// s = s.replace('*', '_');
// s = s.replace('?', '_');
// s = s.replace('"','_');
// s = s.replace('<','_');
// s = s.replace('>','_');
// s = s.replace('|','_');
// }
return s;
}
/**
* Add file to list we delete on flush so we can clear any
* temp files we create.
*
* @param rawFileName is of type String
*/
public void setFileToDeleteOnFlush(final String rawFileName) {
tempFileNames.put(rawFileName,"#");
}
public String getKey() {
return key;
}
}