/*
* Copyright (C) 2012 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* 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.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
/*
* Copyright (C) 2012 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* 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.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.crsh.cli.descriptor;
import org.crsh.cli.impl.descriptor.IllegalParameterException;
import org.crsh.cli.impl.descriptor.IllegalValueTypeException;
import org.crsh.cli.impl.Multiplicity;
import org.crsh.cli.impl.ParameterType;
import org.crsh.cli.impl.SyntaxException;
import org.crsh.cli.spi.Completer;
import org.crsh.cli.type.ValueType;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.BitSet;
import java.util.Collections;
import java.util.List;
public class OptionDescriptor extends ParameterDescriptor {
/** . */
private static final BitSet A = new BitSet(256);
/** . */
private static final BitSet B = new BitSet(256);
static {
for (char c = 'a';c <= 'z';c++) {
A.set(c);
A.set(c + 'A' - 'a');
}
B.or(A);
B.set('-');
}
private static void checkChar(String s, int index, BitSet authorized) throws IllegalParameterException {
if (!authorized.get(s.charAt(index))) {
throw new IllegalParameterException("Option name " + s + " cannot contain " + s.charAt(index) + " at position " + index);
}
}
/** . */
private final int arity;
/** . */
private final List<String> names;
public OptionDescriptor(
ParameterType<?> type,
List<String> names,
Description info,
boolean required,
boolean password,
boolean unquote,
Class<? extends Completer> completerType,
Annotation annotation) throws IllegalValueTypeException, IllegalParameterException {
super(
type,
info,
required,
password,
unquote,
completerType,
annotation);
//
if (getMultiplicity() == Multiplicity.MULTI && getType() == ValueType.BOOLEAN) {
throw new IllegalParameterException();
}
//
names = new ArrayList<String>(names);
for (String name : names) {
if (name == null) {
throw new IllegalParameterException("Option name must not be null");
}
int length = name.length();
if (length == 0) {
throw new IllegalParameterException("Option name cannot be empty");
}
if (!A.get(name.charAt(0))) {
throw new IllegalParameterException("Option name " + name + " cannot start with " + name.charAt(0));
}
checkChar(name, 0, A);
checkChar(name, length - 1, A);
for (int i = 1;i < length - 1;i++) {
checkChar(name, i, B);
}
}
//
if (getType() == ValueType.BOOLEAN) {
arity = 0;
} else {
arity = 1;
}
//
this.names = Collections.unmodifiableList(names);
}
public int getArity() {
return arity;
}
public List<String> getNames() {
return names;
}
@Override
public Object parse(List<String> values) throws SyntaxException {
if (arity == 0) {
if (values.size() > 0) {
throw new SyntaxException("Too many values " + values + " for option " + names.get(0));
}
// It's a boolean and it is true
return Boolean.TRUE;
} else {
if (getMultiplicity() == Multiplicity.SINGLE) {
if (values.size() > 1) {
throw new SyntaxException("Too many values " + values + " for option " + names.get(0));
}
if (values.size() == 0) {
throw new SyntaxException("Missing option " + names.get(0) + " value");
}
String value = values.get(0);
try {
return parse(value);
} catch (Exception e) {
throw new SyntaxException("Could not parse value <" + value + "> for option " + names.get(0));
}
} else {
List<Object> v = new ArrayList<Object>(values.size());
for (String value : values) {
try {
v.add(parse(value));
} catch (Exception e) {
throw new SyntaxException("Could not parse value <" + value + "> for option " + names.get(0));
}
}
return v;
}
}
}
/**
* Prints the option names as an alternative of switches surrounded by a square brace,
* for instance: "[-f --foo]"
*
* @param writer the writer to print to
* @throws IOException any io exception
*/
public void printUsage(Appendable writer) throws IOException {
writer.append("[");
boolean a = false;
for (String optionName : names) {
if (a) {
writer.append(" | ");
}
writer.append(optionName.length() == 1 ? "-" : "--").append(optionName);
a = true;
}
writer.append("]");
}
@Override
public String toString() {
return "OptionDescriptor[" + names + "]";
}
}