/*
* Copyright 2012-2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.cli.command;
import java.util.Arrays;
import java.util.Collections;
import java.util.EnumSet;
import java.util.Set;
/**
* Runtime exception wrapper that defines additional {@link Option}s that are understood
* by the {@link CommandRunner}.
*
* @author Phillip Webb
*/
public class CommandException extends RuntimeException {
private static final long serialVersionUID = 0L;
private final EnumSet<Option> options;
/**
* Create a new {@link CommandException} with the specified options.
* @param options the exception options
*/
public CommandException(Option... options) {
this.options = asEnumSet(options);
}
/**
* Create a new {@link CommandException} with the specified options.
* @param message the exception message to display to the user
* @param options the exception options
*/
public CommandException(String message, Option... options) {
super(message);
this.options = asEnumSet(options);
}
/**
* Create a new {@link CommandException} with the specified options.
* @param message the exception message to display to the user
* @param cause the underlying cause
* @param options the exception options
*/
public CommandException(String message, Throwable cause, Option... options) {
super(message, cause);
this.options = asEnumSet(options);
}
/**
* Create a new {@link CommandException} with the specified options.
* @param cause the underlying cause
* @param options the exception options
*/
public CommandException(Throwable cause, Option... options) {
super(cause);
this.options = asEnumSet(options);
}
private EnumSet<Option> asEnumSet(Option[] options) {
if (options == null || options.length == 0) {
return EnumSet.noneOf(Option.class);
}
return EnumSet.copyOf(Arrays.asList(options));
}
/**
* Returns a set of options that are understood by the {@link CommandRunner}.
* @return the options understood by the runner
*/
public Set<Option> getOptions() {
return Collections.unmodifiableSet(this.options);
}
/**
* Specific options understood by the {@link CommandRunner}.
*/
public enum Option {
/**
* Hide the exception message.
*/
HIDE_MESSAGE,
/**
* Print basic CLI usage information.
*/
SHOW_USAGE,
/**
* Print the stack-trace of the exception.
*/
STACK_TRACE,
/**
* Re-throw the exception rather than dealing with it.
*/
RETHROW
}
}