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GeezerVison is showing github.com — scijava-common/src/main/java/org/scijava/Gateway.java at main · scijava/scijava-common Expand file tree/ Copy pathGateway.javaMore file actions 384 lines (343 loc) · 11.3 KB / Copy pathGateway.javaFile metadata and controls384 lines (343 loc) · 11.3 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 /* * #%L * SciJava Common shared library for SciJava software. * %% * Copyright (C) 2009 - 2026 SciJava developers. * %% * 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; import org.scijava.app.App; import org.scijava.app.AppService; import org.scijava.app.StatusService; import org.scijava.command.CommandService; import org.scijava.console.ConsoleService; import org.scijava.display.DisplayService; import org.scijava.event.EventHistory; import org.scijava.event.EventService; import org.scijava.input.InputService; import org.scijava.io.IOService; import org.scijava.io.RecentFileService; import org.scijava.io.location.LocationService; import org.scijava.log.LogService; import org.scijava.main.MainService; import org.scijava.menu.MenuService; import org.scijava.module.ModuleService; import org.scijava.object.ObjectService; import org.scijava.options.OptionsService; import org.scijava.platform.AppEventService; import org.scijava.platform.PlatformService; import org.scijava.plugin.Plugin; import org.scijava.plugin.PluginService; import org.scijava.plugin.RichPlugin; import org.scijava.script.ScriptService; import org.scijava.service.Service; import org.scijava.startup.StartupService; import org.scijava.text.TextService; import org.scijava.thread.ThreadService; import org.scijava.tool.IconService; import org.scijava.tool.ToolService; import org.scijava.ui.UIService; import org.scijava.widget.WidgetService; /** * Interface for convenience classes that wrap a {@link Context} to provide * one-line access to a suite of {@link Service}s. * <p> * The {@link #get} methods provide consistent {@link Service} instantiation, * while throwing {@link NoSuchServiceException} if the requested * {@link Service} is not found. * </p> * <h3>Sample implementation</h3> * <p> * Let's say we have a {@code Kraken} service and a {@code Cow} service. Using * the {@code Context} directly, the code would look like: * </p> * <pre> * Context context = new Context(); * context.getService(Cow.class).feedToKraken(); * context.getService(Kraken.class).burp();</pre> * <p> * To perform these actions, you have to know <em>a priori</em> to ask for a * {@code Cow} and a {@code Kraken}; i.e., your IDE's code completion will not * give you a hint. Further, if either service is unavailable, a * {@link NullPointerException} is thrown. * </p> * <p> * But if we create a {@code Gateway} class called {@code Animals} with the * following signatures: * </p> * <pre> * public Cow cow() { return get(Cow.class); } * public Kraken kraken() { return get(Kraken.class); }</pre> * <p> * We can now access our services through the new {@code Animals} gateway: * </p> * <pre> * Animals animals = new Animals(); * animals.cow().feedToKraken(); * animals.kraken().burp();</pre> * <p> * This provides succinct yet explicit access to the {@code Cow} and * {@code Kraken} services; it is a simple two-layer access to functionality, * which an IDE can auto-complete. And if one of the services is not available, * a {@link NoSuchServiceException} is thrown, which facilitates appropriate * (but optional) handling of missing services. * </p> * <p> * Gateways discoverable at runtime must implement this interface and be * annotated with @{@link Gateway} with attribute {@link Plugin#type()} = * {@link Gateway}.class. While it possible to create a gateway merely by * implementing this interface, it is encouraged to instead extend * {@link AbstractGateway}, for convenience. * </p> * * @see Context * @author Mark Hiner * @author Curtis Rueden */ public interface Gateway extends RichPlugin, Disposable { /** * Perform launch operations associated with this gateway. * <p> * Typical operations might include: * </p> * <ul> * <li>Handle the given command line arguments using the * {@link ConsoleService}.</li> * <li>Execute registered main classes of the {@link MainService}.</li> * <li>Display the default user interface using the {@link UIService}.</li> * <li>In some circumstances (e.g., when running headless), dispose the * context after launch operations are complete.</li> * </ul> * * @param args The arguments to pass to the application. */ void launch(String... args); /** * Gets a very succinct name for use referring to this gateway, e.g. as a * variable name for scripting. */ String getShortName(); /** * Returns an implementation of the requested {@link Service}, if it exists in * the underlying {@link Context}. * * @param serviceClass the requested {@link Service} * @return The singleton instance of the given class * @throws NullContextException if the application context is not set. * @throws NoSuchServiceException if there is no service of the given class. */ <S extends Service> S get(Class<S> serviceClass); /** * Returns an implementation of the {@link Service} with the given class name, * if it exists in the underlying {@link Context}. * * @param serviceClassName name of the requested {@link Service} * @return The singleton instance of the requested {@link Service} * @throws NullContextException if the application context is not set. * @throws NoSuchServiceException if there is no service matching * {@code serviceClassName}. */ Service get(final String serviceClassName); // -- Gateway methods - services -- /** * Gets this application context's {@link AppEventService}. * * @return The {@link AppEventService} of this application context. */ AppEventService appEvent(); /** * Gets this application context's {@link AppService}. * * @return The {@link AppService} of this application context. */ AppService app(); /** * Gets this application context's {@link CommandService}. * * @return The {@link CommandService} of this application context. */ CommandService command(); /** * Gets this application context's {@link ConsoleService}. * * @return The {@link ConsoleService} of this application context. */ ConsoleService console(); /** * Gets this application context's {@link DisplayService}. * * @return The {@link DisplayService} of this application context. */ DisplayService display(); /** * Gets this application context's {@link EventHistory}. * * @return The {@link EventHistory} of this application context. */ EventHistory eventHistory(); /** * Gets this application context's {@link EventService}. * * @return The {@link EventService} of this application context. */ EventService event(); /** * Gets this application context's {@link IconService}. * * @return The {@link IconService} of this application context. */ IconService icon(); /** * Gets this application context's {@link InputService}. * * @return The {@link InputService} of this application context. */ InputService input(); /** * Gets this application context's {@link IOService}. * * @return The {@link IOService} of this application context. */ IOService io(); /** * Gets this application context's {@link LocationService}. * * @return The {@link LocationService} of this application context. */ LocationService location(); /** * Gets this application context's {@link LogService}. * * @return The {@link LogService} of this application context. */ @Override LogService log(); /** * Gets this application context's {@link MainService}. * * @return The {@link MainService} of this application context. */ MainService main(); /** * Gets this application context's {@link MenuService}. * * @return The {@link MenuService} of this application context. */ MenuService menu(); /** * Gets this application context's {@link ModuleService}. * * @return The {@link ModuleService} of this application context. */ ModuleService module(); /** * Gets this application context's {@link ObjectService}. * * @return The {@link ObjectService} of this application context. */ ObjectService object(); /** * Gets this application context's {@link OptionsService}. * * @return The {@link OptionsService} of this application context. */ OptionsService options(); /** * Gets this application context's {@link PlatformService}. * * @return The {@link PlatformService} of this application context. */ PlatformService platform(); /** * Gets this application context's {@link PluginService}. * * @return The {@link PluginService} of this application context. */ PluginService plugin(); /** * Gets this application context's {@link RecentFileService}. * * @return The {@link RecentFileService} of this application context. */ RecentFileService recentFile(); /** * Gets this application context's {@link ScriptService}. * * @return The {@link ScriptService} of this application context. */ ScriptService script(); /** * Gets this application context's {@link StartupService}. * * @return The {@link StartupService} of this application context. */ StartupService startup(); /** * Gets this application context's {@link StatusService}. * * @return The {@link StatusService} of this application context. */ StatusService status(); /** * Gets this application context's {@link TextService}. * * @return The {@link TextService} of this application context. */ TextService text(); /** * Gets this application context's {@link ThreadService}. * * @return The {@link ThreadService} of this application context. */ ThreadService thread(); /** * Gets this application context's {@link ToolService}. * * @return The {@link ToolService} of this application context. */ ToolService tool(); /** * Gets this application context's {@link UIService}. * * @return The {@link UIService} of this application context. */ UIService ui(); /** * Gets this application context's {@link WidgetService}. * * @return The {@link WidgetService} of this application context. */ WidgetService widget(); // -- Gateway methods - application -- /** @see org.scijava.app.AppService */ App getApp(); /** @see org.scijava.app.App#getTitle() */ String getTitle(); /** @see org.scijava.app.App#getInfo(boolean) */ String getInfo(boolean mem); @Override default void dispose() { context().dispose(); } } |
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