make.langtools.tools.propertiesparser.PropertiesParser Maven / Gradle / Ivy
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/*
* Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package propertiesparser;
import propertiesparser.parser.MessageFile;
import propertiesparser.gen.ClassGenerator;
import java.io.File;
import java.io.PrintStream;
import java.util.TreeMap;
import java.util.Map;
/** Translates a .properties file into a .java file containing an enum-like Java class
* which defines static factory methods for all resource keys in a given resource file.
*
* Usage: java PropertiesParser -compile [path to .properties file] [output folder where .java file will be written]
*
* @author mcimadamore
*/
public class PropertiesParser {
public Logger logger;
public PropertiesParser(Logger logger) {
this.logger = logger;
}
public static void main(String[] args) {
boolean ok = run(args, System.out);
if ( !ok ) {
System.exit(1);
}
}
public static boolean run(String[] args, PrintStream out) {
PropertiesParser pp = new PropertiesParser(out::println);
return pp.run(args);
}
public static interface Logger {
void info(String msg);
}
public void info(String msg) {
logger.info(msg);
}
public boolean run(String[] args) {
Map optionsMap = parseOptions(args);
if (optionsMap.isEmpty()) {
usage();
return false;
}
try {
optionsMap.forEach(this::compilePropertyFile);
return true;
} catch (RuntimeException ex) {
ex.printStackTrace();
return false;
}
}
private void compilePropertyFile(String propertyPath, String outPath) {
try {
File propertyFile = new File(propertyPath);
String prefix = propertyFile.getName().split("\\.")[0];
MessageFile messageFile = new MessageFile(propertyFile, prefix);
new ClassGenerator().generateFactory(messageFile, new File(outPath));
} catch (Throwable ex) {
throw new RuntimeException(ex);
}
}
private Map parseOptions(String args[]) {
/* Use TreeMap to guarantee stable forEach iteration */
Map optionsMap = new TreeMap<>();
for ( int i = 0; i < args.length ; i++ ) {
if ( "-compile".equals(args[i]) && i+2 < args.length ) {
optionsMap.put(args[++i], args[++i]);
} else {
return new TreeMap<>();
}
}
return optionsMap;
}
private void usage() {
info("usage:");
info(" java PropertiesParser {-compile path_to_properties_file path_to_java_output_dir}");
info("");
info("Example:");
info(" java PropertiesParser -compile resources/test.properties resources");
}
}