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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 - 2016 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,
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package org.scijava;
import java.util.ArrayList;
import java.util.Collection;
/**
* A path in a hierarchical menu structure, for use with {@link UIDetails}.
*
* @author Curtis Rueden
*/
public class MenuPath extends ArrayList {
private static final long serialVersionUID = 1L;
/** The separator between elements of a menu path string. */
public static final String PATH_SEPARATOR = ">";
/** Creates an empty menu path. */
public MenuPath() {
// default constructor
}
/**
* Creates a menu path with the given entries. Passing a {@link MenuPath} as
* the argument will make a copy.
*/
public MenuPath(final Collection menuEntries) {
if (menuEntries != null) addAll(menuEntries);
}
/**
* Creates a menu path with entries parsed from the given string. Assumes
* ">" as the separator (e.g., "File>New>Image").
*
* @see #PATH_SEPARATOR
*/
public MenuPath(final String path) {
this(path, PATH_SEPARATOR);
}
/**
* Creates a menu path with entries parsed from the given string, splitting on
* the specified separator.
*/
public MenuPath(final String path, final String separator) {
if (path != null && !path.isEmpty()) {
final String[] tokens = path.split(separator);
for (final String token : tokens) {
add(new MenuEntry(token.trim()));
}
}
}
/** Gets the final element of the menu path. */
public MenuEntry getLeaf() {
if (size() == 0) return null;
return get(size() - 1);
}
/** Gets the menu path as a string. */
public String getMenuString() {
return getMenuString(true);
}
/** Gets the menu path as a string, with or without the final element. */
public String getMenuString(final boolean includeLeaf) {
final StringBuilder sb = new StringBuilder();
final int size = size();
final int last = includeLeaf ? size : size - 1;
for (int i = 0; i < last; i++) {
final MenuEntry menu = get(i);
if (i > 0) sb.append(" " + PATH_SEPARATOR + " ");
sb.append(menu);
}
return sb.toString();
}
}