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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.
*/
/* $Id$ */
package org.apache.fop.fonts.apps;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import java.util.Map;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.fop.util.CommandLineLogger;
/**
* Abstract base class for the PFM and TTF Reader command-line applications.
*/
public abstract class AbstractFontReader {
/** Logger instance */
protected static Log log;
/**
* Main constructor.
*/
protected AbstractFontReader() {
// Create logger if necessary here to allow embedding of TTFReader in
// other applications. There is a possible but harmless synchronization
// issue.
if (log == null) {
log = LogFactory.getLog(AbstractFontReader.class);
}
}
/**
* Parse commandline arguments. put options in the HashMap and return
* arguments in the String array
* the arguments: -fn Perpetua,Bold -cn PerpetuaBold per.ttf Perpetua.xml
* returns a String[] with the per.ttf and Perpetua.xml. The hash
* will have the (key, value) pairs: (-fn, Perpetua) and (-cn, PerpetuaBold)
* @param options Map that will receive options
* @param args the command-line arguments
* @return the arguments
*/
protected static String[] parseArguments(Map options, String[] args) {
List arguments = new java.util.ArrayList();
for (int i = 0; i < args.length; i++) {
if (args[i].startsWith("-")) {
if ("-t".equals(args[i]) || "-d".equals(args[i]) || "-q".equals(args[i])) {
options.put(args[i], "");
} else if ((i + 1) < args.length && !args[i + 1].startsWith("-")) {
options.put(args[i], args[i + 1]);
i++;
} else {
options.put(args[i], "");
}
} else {
arguments.add(args[i]);
}
}
return (String[])arguments.toArray(new String[0]);
}
/**
* Sets the logging level.
* @param level the logging level ("debug", "info", "error" etc., see Jakarta Commons Logging)
*/
protected static void setLogLevel(String level) {
// Set the evel for future loggers.
LogFactory.getFactory().setAttribute("level", level);
if (log instanceof CommandLineLogger) {
// Set the level for the logger creates already.
((CommandLineLogger) log).setLogLevel(level);
}
}
/**
* Determines the log level based of the options from the command-line.
* @param options the command-line options
*/
protected static void determineLogLevel(Map options) {
//Determine log level
if (options.get("-t") != null) {
setLogLevel("trace");
} else if (options.get("-d") != null) {
setLogLevel("debug");
} else if (options.get("-q") != null) {
setLogLevel("error");
} else {
setLogLevel("info");
}
}
/**
* Writes the generated DOM Document to a file.
*
* @param doc The DOM Document to save.
* @param target The target filename for the XML file.
* @throws TransformerException if an error occurs during serialization
*/
public void writeFontXML(org.w3c.dom.Document doc, String target) throws TransformerException {
writeFontXML(doc, new File(target));
}
/**
* Writes the generated DOM Document to a file.
*
* @param doc The DOM Document to save.
* @param target The target file for the XML file.
* @throws TransformerException if an error occurs during serialization
*/
public void writeFontXML(org.w3c.dom.Document doc, File target) throws TransformerException {
log.info("Writing xml font file " + target + "...");
try {
OutputStream out = new java.io.FileOutputStream(target);
out = new java.io.BufferedOutputStream(out);
try {
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer();
transformer.transform(
new javax.xml.transform.dom.DOMSource(doc),
new javax.xml.transform.stream.StreamResult(out));
} finally {
out.close();
}
} catch (IOException ioe) {
throw new TransformerException("Error writing the output file", ioe);
}
}
}
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