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SciJava Common is a shared library for SciJava software. It provides a plugin framework, with an extensible mechanism for service discovery, backed by its own annotation processor, so that plugins can be loaded dynamically. It is used by downstream projects in the SciJava ecosystem, such as ImageJ and SCIFIO.

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package org.scijava.ui;

import org.scijava.module.Module;
import org.scijava.module.ModuleException;
import org.scijava.module.process.PreprocessorPlugin;
import org.scijava.plugin.Parameter;
import org.scijava.widget.AbstractInputHarvester;
import org.scijava.widget.InputHarvester;

/**
 * AbstractInputHarvesterPlugin is an {@link InputHarvester} that implements the
 * {@link PreprocessorPlugin} interface. It is intended to be extended by
 * UI-specific implementations such as {@code SwingInputHarvester}.
 * 

* The input harvester will first check whether the default UI matches that of * its implementation; for example, the Swing-based input harvester plugin will * only harvest inputs if the Swing UI is currently the default one. *

* * @author Curtis Rueden * @author Barry DeZonia * @param

The type of UI component housing the input panel itself. * @param The type of UI component housing each input widget. */ public abstract class AbstractInputHarvesterPlugin extends AbstractInputHarvester implements PreprocessorPlugin { @Parameter(required = false) private UIService uiService; private String cancelReason; // -- ModuleProcessor methods -- @Override public void process(final Module module) { if (uiService == null) return; // no UI service means no input harvesting! // do not harvest if the UI is inactive! if (!uiService.isVisible(getUI())) return; // proceed with input harvesting try { harvest(module); } catch (final ModuleException e) { cancel(e.getMessage()); } } // -- Cancelable methods -- @Override public boolean isCanceled() { return cancelReason != null; } @Override public void cancel(final String reason) { cancelReason = reason == null ? "" : reason; } @Override public String getCancelReason() { return cancelReason; } // -- Internal methods -- /** Gets the name (or class name) of the input harvester's affiliated UI. */ protected abstract String getUI(); }





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