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/*
* Copyright (c) 2003 The Visigoth Software Society. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowledgement:
* "This product includes software developed by the
* Visigoth Software Society (http://www.visigoths.org/)."
* Alternately, this acknowledgement may appear in the software itself,
* if and wherever such third-party acknowledgements normally appear.
*
* 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the
* project contributors may be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
* nor may "FreeMarker" or "Visigoth" appear in their names
* without prior written permission of the Visigoth Software Society.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Visigoth Software Society. For more
* information on the Visigoth Software Society, please see
* http://www.visigoths.org/
*/
package freemarker.ext.dom;
import java.io.*;
import java.util.*;
import freemarker.template.*;
/**
* A class that contains a main() method for command-line invocation
* of a FreeMarker XML transformation.
*
* $id$
*/
public class Transform {
private File inputFile, ftlFile, outputFile;
private String encoding;
private Locale locale;
private Configuration cfg;
/**
* A convenient main() method for command-line invocation.
*/
static public void main(String[] args) {
try {
Transform proc = transformFromArgs(args);
proc.transform();
} catch (IllegalArgumentException iae) {
System.err.println(iae.getMessage());
usage();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* @param inputFile The file from which to read the XML input
* @param ftlFile The file containing the template
* @param outputFile The file to which to output. If this is null, we use stdout.
* @param locale The locale to use. If this is null, we use the platform default.
* @param encoding The character encoding to use for output, if this is null, we use the platform default
*/
Transform(File inputFile, File ftlFile, File outputFile, Locale locale, String encoding) throws IOException {
if (encoding == null) {
encoding = System.getProperty("file.encoding");
}
if (locale == null) {
locale = Locale.getDefault();
}
this.encoding = encoding;
this.locale = locale;
this.inputFile = inputFile;
this.ftlFile = ftlFile;
this.outputFile = outputFile;
File ftlDirectory = ftlFile.getAbsoluteFile().getParentFile();
cfg = new Configuration();
cfg.setDirectoryForTemplateLoading(ftlDirectory);
}
/**
* Performs the transformation.
*/
void transform() throws Exception {
String templateName = ftlFile.getName();
Template template = cfg.getTemplate(templateName, locale);
NodeModel rootNode = NodeModel.parse(inputFile);
OutputStream outputStream = System.out;
if (outputFile != null) {
outputStream = new FileOutputStream(outputFile);
}
Writer outputWriter = new OutputStreamWriter(outputStream, encoding);
try {
template.process(null, outputWriter, null, rootNode);
} finally {
if (outputFile != null)
outputWriter.close();
}
}
static Transform transformFromArgs(String[] args) throws IOException {
int i=0;
String input = null, output=null, ftl = null, loc = null, enc = null;
while (i=args.length) {
throw new IllegalArgumentException("");
}
String arg = args[i++];
if (dashArg.equals("-in")) {
if (input != null) {
throw new IllegalArgumentException("The input file should only be specified once");
}
input = arg;
} else if (dashArg.equals("-ftl")) {
if (ftl != null) {
throw new IllegalArgumentException("The ftl file should only be specified once");
}
ftl = arg;
} else if (dashArg.equals("-out")) {
if (output != null) {
throw new IllegalArgumentException("The output file should only be specified once");
}
output = arg;
} else if (dashArg.equals("-locale")) {
if (loc != null) {
throw new IllegalArgumentException("The locale should only be specified once");
}
loc = arg;
} else if (dashArg.equals("-encoding")) {
if (enc != null) {
throw new IllegalArgumentException("The encoding should only be specified once");
}
enc = arg;
} else {
throw new IllegalArgumentException("Unknown input argument: " + dashArg);
}
}
if (input == null) {
throw new IllegalArgumentException("No input file specified.");
}
if (ftl == null) {
throw new IllegalArgumentException("No ftl file specified.");
}
File inputFile = new File(input).getAbsoluteFile();
File ftlFile = new File(ftl).getAbsoluteFile();
if (!inputFile.exists()) {
throw new IllegalArgumentException("Input file does not exist: " + input);
}
if (!ftlFile.exists()) {
throw new IllegalArgumentException("FTL file does not exist: " + ftl);
}
if (!inputFile.isFile() || !inputFile.canRead()) {
throw new IllegalArgumentException("Input file must be a readable file: " + input);
}
if (!ftlFile.isFile() || !ftlFile.canRead()) {
throw new IllegalArgumentException("FTL file must be a readable file: " + ftl);
}
File outputFile = null;
if (output != null) {
outputFile = new File(output).getAbsoluteFile();
File outputDirectory = outputFile.getParentFile();
if (!outputDirectory.exists() || !outputDirectory.canWrite()) {
throw new IllegalArgumentException("The output directory must exist and be writable: " + outputDirectory);
}
}
Locale locale = Locale.getDefault();
if (loc != null) {
locale = localeFromString(loc);
}
return new Transform(inputFile, ftlFile, outputFile, locale, enc);
}
static Locale localeFromString(String ls) {
if (ls == null) ls = "";
String lang="", country="", variant="";
StringTokenizer st = new StringTokenizer(ls, "_-,");
if (st.hasMoreTokens()) {
lang = st.nextToken();
if (st.hasMoreTokens()) {
country = st.nextToken();
if (st.hasMoreTokens()) {
variant = st.nextToken();
}
}
return new Locale(lang, country, variant);
} else {
return Locale.getDefault();
}
}
static void usage() {
System.err.println("Usage: java freemarker.ext.dom.Transform -in -ftl [-out ] [-locale ] [-encoding ]");
System.exit(-1);
}
}
