/*
* ResourceProviderME.java
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* This was first modified no earlier than May 27, 2008.
*
*/
// Expand to define test define
//#define DNOTEST
// Expand to define logging define
//#define DNOLOGGING
package cz.cacek.ebook.util;
import java.io.InputStream;
import java.io.IOException;
import java.util.Hashtable;
import cz.cacek.ebook.Common;
import com.substanceofcode.utils.CauseException;
import com.substanceofcode.utils.CauseRuntimeException;
import com.substanceofcode.utils.CauseMemoryException;
import com.substanceofcode.utils.StringUtil;
import com.substanceofcode.utils.EncodingUtil;
import com.substanceofcode.utils.EncodingStreamReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
//#ifdef DLOGGING
import net.sf.jlogmicro.util.logging.Logger;
import net.sf.jlogmicro.util.logging.Level;
//#endif
/**
* Holds translations for RSSReader - list of resources is from XML properties
* in packager application.
* @author Josef Cacek [josef.cacek (at) atlas.cz]
* @author $Author: ibuntonjr $
* @version $Revision: 934 $
* @created $Date: 2008-07-15 23:33:20 +0200 (Di, 15 Jul 2008) $
*/
public final class ResourceProviderME {
/**
* Singleton instance of ResourceProvider. Due to problems with MIDP,
* we have to have a initializer method.
*/
public static ResourceProviderME provider = null;
private Hashtable messages;
private Hashtable locMessages;
//#ifdef DLOGGING
private Logger m_logger = Logger.getLogger("ResourceProviderME");
private boolean m_fineLoggable = m_logger.isLoggable(Level.FINE);
private boolean m_finestLoggable = m_logger.isLoggable(Level.FINEST);
//#endif
private ResourceProviderME() {
//#ifdef DTEST
long beginMe = System.currentTimeMillis();
System.gc();
long beginMem = Runtime.getRuntime().freeMemory();
//#endif
final Hashtable tmpMsgs = new Hashtable();
InputStream is = null;
try {
is = getClass().getResourceAsStream(
"/"+Common.DATA_FOLDER+"/" + Common.LANGUAGE_FILE);
if (is == null) {
throw new IOException("Unable to read file " +
"/"+Common.DATA_FOLDER+"/" + Common.LANGUAGE_FILE);
}
EncodingUtil encUtl = new EncodingUtil(is);
EncodingStreamReader esr = encUtl.getEncodingStreamReader();
StringBuffer inputBuffer;
try {
inputBuffer = esr.readFile(Common.LANGUAGE_FILE_LEN);
} catch (IOException ex) {
CauseException cex = new CauseException(
"Error while reading file.", ex);
throw cex;
} finally {
if (is != null) {
try {
is.close();
} catch (Exception e) {
}
}
}
String text;
/* If not UTF-8, treat it as one since we use XSL to create UTF-8.
I couldn't create a file with BOM, so this is the next best
thing. */
final String fileEncoding = esr.getFileEncoding();
if (!esr.isUtfDoc()) {
esr.setUtfDoc(true);
encUtl.getEncoding(fileEncoding, "UTF-8");
}
if (esr.isUtfDoc()) {
if (esr.isUtf16Doc()) {
encUtl.getEncoding(fileEncoding, "UTF-16");
} else {
encUtl.getEncoding(fileEncoding, "UTF-8");
}
final String docEncoding = encUtl.getDocEncoding();
if (docEncoding.length() == 0) {
text = inputBuffer.toString();
} else {
try {
// We read the bytes in as ISO8859_1, so we must get them
// out as that and then encode as they should be.
if (fileEncoding.length() == 0) {
text = new String(inputBuffer.toString().getBytes(),
docEncoding);
} else {
text = new String(inputBuffer.toString().getBytes(
fileEncoding), docEncoding);
}
} catch (UnsupportedEncodingException e) {
//#ifdef DLOGGING
m_logger.severe("constructor Could not convert string from,to" + fileEncoding + "," + docEncoding, e);
//#endif
System.out.println("constructor Could not convert string from,to" + fileEncoding + "," + docEncoding);
text = inputBuffer.toString();
} catch (IOException e) {
//#ifdef DLOGGING
m_logger.severe("constructor Could not convert string from,to" + fileEncoding + "," + docEncoding, e);
//#endif
System.out.println("constructor Could not convert string from,to" + fileEncoding + "," + docEncoding);
text = inputBuffer.toString();
}
}
} else {
text = inputBuffer.toString();
}
inputBuffer = null;
// Split buffer string by each new line
text = StringUtil.replace(text, "\r", "");
String[] lines = StringUtil.split(text, '\n');
text = null;
String prevKey = "";
String key;
for (int ic = 0; ic < lines.length; lines[ic] = null, ic++) {
final String line = lines[ic];
if ((line.length() == 0) || (line.charAt(0) == '#')) {
continue;
}
int indexOfeq = line.indexOf("=");
if (indexOfeq < 1) {
if (indexOfeq == -1) {
if (prevKey.length() > 0) {
final String value = (String)tmpMsgs.get(prevKey);
if (value == null) {
continue;
}
tmpMsgs.put(prevKey, value + "\n" + line);
//#ifdef DLOGGING
m_logger.warning("Appending to previous key line=" + line);
//#endif
continue;
}
}
//#ifdef DLOGGING
m_logger.severe("Invalid key no '=' or at beginning of line=" + line);
//#endif
System.out.println("Invalid entry. No key. line=" + line);
continue;
}
key = line.substring(0, indexOfeq);
prevKey = key;
String value = line.substring(indexOfeq + 1);
if (value.length() == 0) {
//#ifdef DLOGGING
m_logger.warning("No value after = or at beginning of line=" + line);
//#endif
System.out.println("Warning entry has no value for " +
key);
}
//#ifdef DLOGGING
if (m_finestLoggable) {m_logger.finest("key,value=" + key + "," + value);}
//#endif
//#ifdef DTEST
if (tmpMsgs.containsKey(key)) {
String msg = "ResourceProviderME constructor " +
"duplicate key=" + key;
System.err.println(msg);
//#ifdef DLOGGING
m_logger.severe(msg);
//#endif
continue;
}
//#endif
tmpMsgs.put(key, value);
}
setMessages(tmpMsgs);
} catch (CauseMemoryException e) {
//#ifdef DLOGGING
m_logger.severe("constructor could not initialize.", e);
//#endif
CauseRuntimeException cex = new CauseRuntimeException(
"Out of memory error loading translation.", e);
throw cex;
} catch (CauseException e) {
//#ifdef DLOGGING
m_logger.severe("constructor could not initialize.", e);
//#endif
CauseRuntimeException cex = new CauseRuntimeException(
"Error loading translation.", e);
throw cex;
} catch (Exception e) {
//#ifdef DLOGGING
m_logger.severe("constructor could not initialize.", e);
//#endif
CauseRuntimeException cex = new CauseRuntimeException(
"Internal error loading translation.", e);
throw cex;
} catch (OutOfMemoryError e) {
//#ifdef DLOGGING
m_logger.severe("constructor could not initialize out of memory.",
e);
//#endif
} catch (Throwable e) {
//#ifdef DLOGGING
m_logger.severe("constructor could not initialize.", e);
//#endif
CauseRuntimeException cex = new CauseRuntimeException(
"Internal error loading translation.", e);
throw cex;
} finally {
if (getMessages() == null) {
setMessages(new Hashtable());
}
//#ifdef DTEST
System.gc();
//#ifdef DLOGGING
if (m_finestLoggable) {m_logger.finest("constructor time=" + (System.currentTimeMillis() - beginMe));}
if (m_finestLoggable) {m_logger.finest("ResourceProviderME size=" + (beginMem - Runtime.getRuntime().freeMemory()));}
//#endif
System.out.println("constructor time=" + (System.currentTimeMillis() - beginMe));
System.out.println("ResourceProviderME size=" + (beginMem - Runtime.getRuntime().freeMemory()));
//#endif
}
}
/**
* Initialize ResourceProviderME.
*
* @author Irv Bunton
*/
final public static void initialize() {
if (provider == null) {
provider = new ResourceProviderME();
}
}
/**
* Returns message identified by given key.
* @param aKey
* @return message identified by given key
*/
public synchronized static String get(final String aKey) {
final String tmpResult = (String)provider.getMessages().get(aKey);
if (tmpResult == null) {
Exception e = new Exception("ResourceProviderME.get no value for " +
"key=" + aKey);
System.err.println(e.getMessage());
e.printStackTrace();
//#ifdef DLOGGING
Logger logger = Logger.getLogger("ResourceProviderME");
logger.severe(e.getMessage(), e);
//#endif
return aKey;
}
return tmpResult;
}
/**
* Returns message identified by given key and with substitutions of
* parameters.
* @param aKey
* @param aParm1
* @return message identified by given key
*/
public synchronized static String get(final String aKey, String aParm1) {
String msg = get(aKey);
return StringUtil.replace(msg, "\\1", aParm1);
}
public Hashtable getMessages() {
synchronized(this) {
return messages;
}
}
private void setMessages(final Hashtable aMsgs) {
synchronized(this) {
messages = aMsgs;
}
}
}