jdk-24/make/langtools/tools/javacserver/options/Options.java
Magnus Ihse Bursie 4527dc67be 8297041: Remove the last remnants of sjavac
Reviewed-by: cstein, erikj, jjg
2022-11-17 09:20:22 +00:00

122 lines
4.0 KiB
Java

/*
* Copyright (c) 2014, 2022, 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 javacserver.options;
import java.util.List;
/**
* Instances of this class represent values for sjavac command line options.
*
* <p><b>This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own risk.
* This code and its internal interfaces are subject to change or
* deletion without notice.</b>
*/
public class Options {
private String logLevel = "info";
private boolean startServer = false;
// Server configuration string
private String serverConf;
/** Get the log level. */
public String getLogLevel() {
return logLevel;
}
/** Return true iff a new server should be started */
public boolean startServerFlag() {
return startServer;
}
/** Return the server configuration string. */
public String getServerConf() {
return serverConf;
}
/**
* Parses the given argument array and returns a corresponding Options
* instance.
*/
public static Options parseArgs(String... args) {
Options options = new Options();
options.new ArgDecoderOptionHelper().traverse(args);
return options;
}
// OptionHelper that records the traversed options in this Options instance.
public class ArgDecoderOptionHelper {
public void reportError(String msg) {
throw new IllegalArgumentException(msg);
}
public void serverConf(String conf) {
if (serverConf != null)
reportError("Can not specify more than one server configuration.");
else
serverConf = conf;
}
public void startServerConf(String conf) {
if (serverConf != null)
reportError("Can not specify more than one server configuration.");
else {
startServer = true;
serverConf = conf;
}
}
/**
* Traverses an array of arguments and performs the appropriate callbacks.
*
* @param args the arguments to traverse.
*/
void traverse(String[] args) {
Iterable<String> allArgs;
try {
allArgs = CommandLine.parse(List.of(args)); // Detect @file and load it as a command line.
} catch (java.io.IOException e) {
throw new IllegalArgumentException("Problem reading @"+e.getMessage());
}
ArgumentIterator argIter = new ArgumentIterator(allArgs);
nextArg:
while (argIter.hasNext()) {
String arg = argIter.next();
if (arg.startsWith("-")) {
for (Option opt : Option.values()) {
if (opt.processCurrent(argIter, this))
continue nextArg;
}
}
}
}
}
}