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* #%L

* SciJava Common shared library for SciJava software.

* %%

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions are met:

* 1. Redistributions of source code must retain the above copyright notice,

* this list of conditions and the following disclaimer.

* 2. 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.

* 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 THE COPYRIGHT HOLDERS OR CONTRIBUTORS 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.

* #L%

package org.scijava.command;

import java.util.List;

import java.util.Map;

import java.util.concurrent.ExecutionException;

import org.scijava.Context;

import org.scijava.module.process.PreprocessorPlugin;

/**

* A way to build a dynamic set of inputs, whose values are then harvested by

* the preprocessing framework.

* <p>

* The {@link #run()} method of this command does nothing. If you want something

* custom to happen during execution, use a normal {@link Command} instead:

* either implement {@link Command directly}, or extend {@link ContextCommand}

* or {@link DynamicCommand}.

* </p>

* <p>

* Here is are some examples of usage:

* </p>

* <pre>

* {@code

* // Single input, no configuration.

* Inputs inputs = new Inputs(context);

* inputs.addInput("sigma", Double.class);

* Double sigma = (Double) inputs.harvest().get("sigma");

* // Two inputs, no configuration.

* Inputs inputs = new Inputs(context);

* inputs.addInput("name", String.class);

* inputs.addInput("age", Integer.class);

* Map<String, Object> values = inputs.harvest();

* String name = (String) values.get("name");

* Integer age = (Integer) values.get("age");

* // Inputs with configuration.

* Inputs inputs = new Inputs(context);

* MutableModuleItem<String> wordInput = inputs.addInput("word", String.class);

* wordInput.setLabel("Favorite word");

* wordInput.setChoices(Arrays.asList("quick", "brown", "fox"));

* wordInput.setDefaultValue("fox");

* MutableModuleItem<Double> opacityInput = inputs.addInput("opacity", Double.class);

* opacityInput.setMinimumValue(0.0);

* opacityInput.setMaximumValue(1.0);

* opacityInput.setDefaultValue(0.5);

* opacityInput.setWidgetStyle(NumberWidget.SCROLL_BAR_STYLE);

* inputs.harvest();

* String word = wordInput.getValue(inputs);

* Double opacity = opacityInput.getValue(inputs);

* }

* </pre>

* @author Curtis Rueden

public final class Inputs extends DynamicCommand {

public Inputs(final Context context) {

context.inject(this);

}

public Map<String, Object> harvest() {

try {

final List<PreprocessorPlugin> pre = //

pluginService.createInstancesOfType(PreprocessorPlugin.class);

return moduleService.run(this, pre, null).get().getInputs();

}

catch (final InterruptedException | ExecutionException exc) {

throw new RuntimeException(exc);

}