com.github.sviperll.tasks.AdditionalClosingActionTask Maven / Gradle / Ivy
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/*
* Copyright (c) 2014, Victor Nazarov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Victor Nazarov nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.github.sviperll.tasks;
/**
* This class represents TaskDefinition that behaves the same as a TaskDefinition passed to the constructor
* but performes additinal cleanup when close method is called.
*
* When #close method runs instance of this class calls #close method of original task
* and than calls Runnable closingAction passed to the constructor
*/
class AdditionalClosingActionTask implements TaskDefinition {
private final TaskDefinition task;
private final Runnable closingAction;
/**
*
* @param task original task to base behaviour on
* @param closingAction aditional action to perform when instance is closed
*/
public AdditionalClosingActionTask(TaskDefinition task, Runnable closingAction) {
this.task = task;
this.closingAction = closingAction;
}
/**
* Calls #run method of the original task @see TaskDefinition#run
*/
@Override
public void run() {
task.run();
}
/**
* Calls #stop method of the original task @see TaskDefinition#stop
*/
@Override
public void stop() {
task.stop();
}
/**
* Calls #close method of the original task (@see TaskDefinition#close)
* and than calls additional closingAction
*/
@Override
public void close() {
try {
task.close();
} finally {
closingAction.run();
}
}
}