/**
* The MIT License (MIT)
*
* Copyright (c) 2014-2017 Yegor Bugayenko
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.takes.http;
/**
* HTTP front exit.
*
* <p>All implementations of this interface must be immutable and thread-safe.
*
* @author Yegor Bugayenko (yegor256@gmail.com)
* @version $Id: 7df8393f534574985210753e5acfac7fde04a95e $
* @since 0.1
*/
public interface Exit {
/**
* Never exit.
*/
Exit NEVER = new Exit() {
@Override
public boolean ready() {
return false;
}
};
/**
* Ready to exit?
* @return TRUE if Front should stop
*/
boolean ready();
/**
* OR.
* @since 0.28
*/
final class Or implements Exit {
/**
* Left.
*/
private final Exit left;
/**
* Right.
*/
private final Exit right;
/**
* Ctor.
* @param lft Left
* @param rht Right
*/
public Or(final Exit lft, final Exit rht) {
this.left = lft;
this.right = rht;
}
@Override
public boolean ready() {
return this.left.ready() || this.right.ready();
}
}
/**
* AND.
* @since 0.28
*/
final class And implements Exit {
/**
* Left.
*/
private final Exit left;
/**
* Right.
*/
private final Exit right;
/**
* Ctor.
* @param lft Left
* @param rht Right
*/
public And(final Exit lft, final Exit rht) {
this.left = lft;
this.right = rht;
}
@Override
public boolean ready() {
return this.left.ready() && this.right.ready();
}
}
/**
* NOT.
* @since 0.28
*/
final class Not implements Exit {
/**
* Origin.
*/
private final Exit origin;
/**
* Ctor.
* @param exit Original
*/
public Not(final Exit exit) {
this.origin = exit;
}
@Override
public boolean ready() {
return !this.origin.ready();
}
}
}