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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.
/*
* #%L
* SciJava Common shared library for SciJava software.
* %%
* Copyright (C) 2009 - 2014 Board of Regents of the University of
* Wisconsin-Madison, Broad Institute of MIT and Harvard, and Max Planck
* Institute of Molecular Cell Biology and Genetics.
* %%
* 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.app;
import java.io.File;
import org.scijava.plugin.Plugin;
import org.scijava.plugin.RichPlugin;
import org.scijava.plugin.SingletonPlugin;
import org.scijava.util.Manifest;
import org.scijava.util.POM;
/**
* Metadata about a SciJava-based application, used by the {@link AppService}.
*
* Applications discoverable at runtime must implement this interface and be
* annotated with @{@link Plugin} with attribute {@link Plugin#type()} =
* {@link App}.class. While it possible to create an application merely by
* implementing this interface, it is encouraged to instead extend
* {@link AbstractApp}, for convenience.
*
*
* @author Curtis Rueden
* @see Plugin
* @see AppService
*/
public interface App extends RichPlugin, SingletonPlugin {
/** Gets the title of the application. */
String getTitle();
/**
* Gets the version of the application.
*
* SciJava conforms to the Semantic
* Versioning specification.
*
*
* @return The application version, in {@code major.minor.micro} format.
*/
String getVersion();
/** The Maven {@code groupId} of the application. */
String getGroupId();
/** The Maven {@code artifactId} of the application. */
String getArtifactId();
/** Gets the Maven POM containing metadata about the application. */
POM getPOM();
/**
* Gets the manifest containing metadata about the application.
*
* NB: This metadata may be null if run in a development environment.
*
*/
Manifest getManifest();
/**
* Gets a string with information about the application.
*
* @param mem If true, memory usage information is included.
*/
String getInfo(boolean mem);
/**
* A system property which, if set, overrides the base directory of the
* application.
*/
String getSystemProperty();
/**
* Gets the application's root directory. If the application's system property
* is set, it is used. Otherwise, we scan up the tree from this class for a
* suitable directory.
*/
File getBaseDirectory();
}