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/*
* libbrlapi - A library providing access to braille terminals for applications.
*
* Copyright (C) 2006-2025 by
* Samuel Thibault <Samuel.Thibault@ens-lyon.org>
* Sébastien Hinderer <Sebastien.Hinderer@ens-lyon.org>
*
* libbrlapi comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
package org.a11y.brlapi.commands;
import org.a11y.brlapi.*;
import org.a11y.brlapi.programs.*;
import org.a11y.brlapi.clients.*;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
public class ApiToolCommand extends Program {
private final static KeywordMap<Class<? extends Program>> knownPrograms =
new KeywordMap<>();
private static void addProgram (Class<? extends Program> type) {
String name = type.getSimpleName();
if (isClient(type)) {
name = Strings.replaceAll(name, "Client$", "");
} else {
name = Strings.replaceAll(name, "Program$", "");
}
name = toOperandName(Strings.wordify(name));
knownPrograms.put(name, type);
}
static {
addProgram(ApiErrorClient.class);
addProgram(ApiExceptionClient.class);
addProgram(BoundCommandsClient.class);
addProgram(ComputerBrailleClient.class);
addProgram(DriverKeysClient.class);
addProgram(EchoClient.class);
addProgram(GetDriverClient.class);
addProgram(GetModelClient.class);
addProgram(GetSizeClient.class);
addProgram(ListParametersClient.class);
addProgram(PauseClient.class);
addProgram(SetParameterClient.class);
addProgram(VersionProgram.class);
addProgram(WriteArgumentsClient.class);
addProgram(WriteDotsClient.class);
addProgram(WriteTextClient.class);
}
public ApiToolCommand (String... arguments) {
super(arguments);
addRequiredParameters("program/client");
addRepeatingParameter("argument");
}
@Override
public String getPurpose () {
return "Command line access to the functionality provided by the BrlAPI interface.";
}
@Override
protected final void extendUsageSummary (StringBuilder usage) {
super.extendUsageSummary(usage);
if (knownPrograms.isEmpty()) {
usage.append("\nNo programs or clients have been defined.");
} else {
usage.append("\nThese programs and clients have been defined")
.append(" (each has its own -help option):");
for (String name : knownPrograms.getKeywords()) {
usage.append("\n ").append(name);
}
}
}
private String programName = null;
private Class<? extends Program> programType = null;
private String[] programArguments = null;
@Override
protected final void processParameters (String[] parameters)
throws SyntaxException
{
int count = parameters.length;
if (count == 0) {
throw new SyntaxException("missing program/client name");
}
programName = parameters[0];
programType = knownPrograms.get(programName);
if (programType == null) {
throw new SyntaxException("unknown program/client: %s", programName);
}
count -= 1;
programArguments = new String[count];
System.arraycopy(parameters, 1, programArguments, 0, count);
}
@Override
protected final void runProgram () throws ProgramException {
String objectName = getObjectName();
Program program = null;
try {
Constructor<? extends Program> constructor = programType.getConstructor(
programArguments.getClass()
);
program = (Program)constructor.newInstance((Object)programArguments);
} catch (NoSuchMethodException exception) {
throw new ProgramException(
"constructor not found: %s",
objectName
);
} catch (InstantiationException exception) {
throw new ProgramException(
"instantiation failed: %s: %s",
objectName, exception.getMessage()
);
} catch (IllegalAccessException exception) {
throw new ProgramException(
"access denied: %s: %s",
objectName, exception.getMessage()
);
} catch (InvocationTargetException exception) {
Throwable cause = exception.getCause();
String message = String.format(
"construction failed: %s: %s",
objectName, cause.getClass().getSimpleName()
);
{
String problem = cause.getMessage();
if (problem != null) message += ": " + problem;
}
throw new ProgramException(message);
}
program.setProgramName(programName)
.run();
}
public static void main (String... arguments) {
try {
new ApiToolCommand(arguments)
.setProgramName("apitool")
.run();
} catch (ExitException exception) {
System.exit(exception.getExitCode());
}
}
}
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