| <?xml version="1.0" encoding="UTF-8"?> |
| <!-- |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| --> |
| <!DOCTYPE api-answers PUBLIC "-//NetBeans//DTD Arch Answers//EN" "../../nbbuild/antsrc/org/netbeans/nbbuild/Arch.dtd" [ |
| <!ENTITY api-questions SYSTEM "../../nbbuild/antsrc/org/netbeans/nbbuild/Arch-api-questions.xml"> |
| ]> |
| |
| <!-- XXX need to remove obsolete info from Execution API split --> |
| |
| <api-answers |
| question-version="1.12" |
| author="dstrupl@netbeans.org" |
| > |
| |
| &api-questions; |
| |
| |
| <!-- |
| <question id="arch-what"> |
| What is this project good for? |
| <hint> |
| Please provide here few lines describing the the project, |
| what problem it should solve, provide links to documentation, |
| specifications, etc. |
| </hint> |
| </question> |
| --> |
| <answer id="arch-what"> |
| The IDE uses a small interface to describe the execution of Java-based |
| classes together with arguments. The |
| <api name="ExecutionAPI" url="@org-openide-execution@/org/openide/execution/doc-files/api.html" |
| type="export" category="official" |
| group="java" /> |
| controls the execution |
| of user-level classes. The system may have several different types |
| of executors simultaneously installed. By default we provide so called |
| External Execution for running a user code by an external process and |
| Internal Execution for running the user code in the same virtual machine |
| as the IDE. |
| |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="compat-i18n"> |
| Is your module correctly internationalized? |
| <hint> |
| Correct internationalization means that it obeys instuctions |
| at <a href="http://www.netbeans.org/devhome/docs/i18n/index.html"> |
| NetBeans I18N pages</a>. |
| </hint> |
| </question> |
| --> |
| <answer id="compat-i18n"> |
| Yes. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="compat-standards"> |
| Does the module implement or define any standards? Is the |
| implementation exact or does it deviate somehow? |
| </question> |
| --> |
| <answer id="compat-standards"> |
| No. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="compat-version"> |
| Can your module coexist with earlier and future |
| versions? Can you correctly read all old settings? Will future |
| versions be able to read your current settings? Can you read |
| or politely ignore settings stored by a future version? |
| |
| <hint> |
| Very helpful for reading settings is to store version number |
| there, so future versions can decide whether how to read/convert |
| the settings and older versions can ignore the new ones. |
| </hint> |
| </question> |
| --> |
| <answer id="compat-version"> |
| Yes. It uses the settings API to store its settings. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="dep-jre"> |
| Which version of JRE do you need (1.2, 1.3, 1.4, etc.)? |
| <hint> |
| It is expected that if your module runs on 1.x that it will run |
| on 1.x+1 if no, state that please. Also describe here cases where |
| you run different code on different versions of JRE and why. |
| </hint> |
| </question> |
| --> |
| <answer id="dep-jre"> |
| 1.3. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="dep-jrejdk"> |
| Do you require the JDK or is the JRE enough? |
| </question> |
| --> |
| <answer id="dep-jrejdk"> |
| JRE is enough. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="dep-nb"> |
| What other NetBeans projects does this one depend on? |
| <hint> |
| If you want, describe such projects as imported API using |
| the <code><api name="identification" type="import or export" category="stable" url="where is the description" /></code> |
| </hint> |
| </question> |
| --> |
| <answer id="dep-nb"> |
| <api name="OptionsAPI" group="java" type="import" category="official" url="@org-openide-options@/org/openide/options/doc-files/api.html"/>; |
| <api group="java" name="WindowSystemAPI" type="import" category="official" url="@org-openide-windows@/org/openide/windows/doc-files/api.html"/> |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="dep-non-nb"> |
| What other projects outside NetBeans does this one depend on? |
| |
| <hint> |
| Some non-NetBeans projects are packaged as NetBeans modules |
| (see <a href="http://libs.netbeans.org">libraries</a>) and |
| it is prefered to use this approach when more modules may |
| depend on such third-party library. |
| </hint> |
| </question> |
| --> |
| <answer id="dep-non-nb"> |
| Execution does not depend on any external library. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="dep-platform"> |
| On which platforms does your module run? Does it run in the same |
| way on each? |
| <hint> |
| If your module is using JNI or deals with special differences of |
| OSes like filesystems, etc. please describe here what they are. |
| </hint> |
| </question> |
| --> |
| <answer id="dep-platform"> |
| For running with so called external execution the java process is |
| spawned. The module tries to find the java executable. It uses the |
| same executable as the whole NetBeans IDE. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="deploy-jar"> |
| Do you deploy just module JAR file(s) or other files as well? |
| <hint> |
| If your module consist just from one module JAR file, just confirm that. |
| If it uses more than one JAR, describe where there are located, how |
| they refer to each other. |
| If it consist of module JAR(s) and other files, please describe |
| what is their purpose, why other files are necessary. Please |
| make sure that installation/deinstallation leaves the system |
| in state as it was before installation. |
| </hint> |
| </question> |
| --> |
| <answer id="deploy-jar"> |
| The module creates openide-execution.jar and core-execution.jar. Both of them |
| are autoload modules. The openide-execution.jar contains the public APIs |
| and the core-execution.jar contains private implementation. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="deploy-nbm"> |
| Can you deploy an NBM via the Update Center? |
| <hint> |
| If not why? |
| </hint> |
| </question> |
| --> |
| <answer id="deploy-nbm"> |
| Yes. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="deploy-packages"> |
| Are packages of your module made inaccessible by not declaring them |
| public? |
| |
| <hint> |
| NetBeans module system allows restriction of access rights to |
| public classes of your module from other modules. This prevents |
| unwanted dependencies of others on your code and should be used |
| whenever possible (<a href="http://www.netbeans.org/download/apis/org/openide/doc-files/upgrade.html#3.4-public-packages"> |
| public packages |
| </a>). |
| </hint> |
| </question> |
| --> |
| <answer id="deploy-packages"> |
| core-execution.jar does not define any public packages. So the public classes |
| in this jar are made inaccessible by the NetBeans module system. |
| openide-execution.jar contains publicly accessible classes (no protection |
| by the module system needed in this case). |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="deploy-shared"> |
| Do you need to be installed in the shared location only, or in the user directory only, |
| or can your module be installed anywhere? |
| <hint> |
| Installation location shall not matter, if it does explain why. |
| Consider also whether <code>InstalledFileLocator</code> can help. |
| </hint> |
| </question> |
| --> |
| <answer id="deploy-shared"> |
| No answer |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="exec-classloader"> |
| Does your code create its own class loader(s)? |
| <hint> |
| A bit unusual. Please explain why and what for. |
| </hint> |
| </question> |
| --> |
| <answer id="exec-classloader"> |
| Yes --- this module creates its own class loader. NbClassLoader is in the |
| public API and it is a class loader which is capable of loading classes |
| from the Repository (a user defined dynamic class path). |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="exec-component"> |
| Is execution of your code influenced by any (string) property |
| of any of your components? |
| |
| <hint> |
| Often <code>JComponent.getClientProperty</code>, <code>Action.getValue</code> |
| or <code>PropertyDescriptor.getValue</code>, etc. are used to influence |
| a behaviour of some code. This of course forms an interface that should |
| be documented. Also if one depends on some interface that an object |
| implements (<code>component instanceof Runnable</code>) that forms an |
| API as well. |
| </hint> |
| </question> |
| --> |
| <answer id="exec-component"> |
| File attributes accessible via calls to |
| org.openide.filesystems.FileObject.getAttribute(name) |
| org.openide.filesystems.FileObject.setAttribute(name, value) |
| They can also be stored in the module layer. Please see filesystems |
| for more information about this. |
| |
| <api type="export" group="property" name="NetBeansAttrExecutor" category="private" /> |
| |
| <api type="export" group="property" name="NetBeansAttrArguments" category="private" /> |
| |
| <api type="export" group="property" name="readOnlyAttrs" category="private" /> |
| |
| |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="exec-privateaccess"> |
| Are you aware of any other parts of the system calling some of |
| your methods by reflection? |
| <hint> |
| If so, describe the "contract" as an API. Likely private or friend one, but |
| still API and consider rewrite of it. |
| </hint> |
| </question> |
| --> |
| <answer id="exec-privateaccess"> |
| No. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="exec-property"> |
| Is execution of your code influenced by any environment or |
| Java system (<code>System.getProperty</code>) property? |
| |
| <hint> |
| If there is a property that can change the behaviour of your |
| code, somebody will likely use it. You should describe what it does |
| and the stability category of this API. You may use |
| <pre> |
| <property name="id" category="private" > |
| description of the property, where it is used, what it influence, etc. |
| </property> |
| </pre> |
| </hint> |
| </question> |
| --> |
| <answer id="exec-property"> |
| Following is the list of properties used by the Execution module |
| |
| <api type="import" group="property" name="Env-foo" category="private" /> |
| |
| <api type="import" group="property" name="java.home" category="standard" /> |
| |
| <api type="import" group="property" name="jdk.home" category="standard" /> |
| |
| <api type="import" group="property" name="java.class.path" category="standard" /> |
| |
| <api type="import" group="property" name="sun.boot.class.path" category="private" /> |
| |
| <api type="import" group="property" name="java.ext.dirs" category="private" /> |
| |
| <api type="import" group="property" name="line.separator" category="private" /> |
| |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="exec-reflection"> |
| Does your code use Java Reflection to execute other code? |
| <hint> |
| This usually indicates a missing or unsufficient API in the other |
| part of the system. If the other side is not aware of your dependency |
| this contract can be easily broken. |
| </hint> |
| </question> |
| --> |
| <answer id="exec-reflection"> |
| Hack to close windows belonging to a thread group uses method |
| javax.swing.SwingUtilities.getSharedOwnerFrame.<p/> |
| The field |
| java.security.AccessControlContext.context is accessed due |
| to some JDK 1.2.1 hack in org.netbeans.core.execution.AccController.<p/> |
| When you want to execute some object it is first compiled. |
| |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="format-clipboard"> |
| Which data flavors (if any) does your code read from or insert to |
| the clipboard? |
| </question> |
| --> |
| <answer id="format-clipboard"> |
| None. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="format-dnd"> |
| Which protocols (if any) does your code understand during Drag & Drop? |
| </question> |
| --> |
| <answer id="format-dnd"> |
| None. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="format-types"> |
| Which file formats (if any) does your code read or write on disk? |
| </question> |
| --> |
| <answer id="format-types"> |
| No answer |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="lookup-lookup"> |
| Does your module use <code>org.openide.util.Lookup</code> |
| to find any components to communicate with? Which ones? |
| |
| <hint> |
| Please describe the interfaces you are searching for, where |
| are defined, whether you are searching for just one or more of them, |
| if the order is important, etc. Also clasify the stability of such |
| API contract. |
| </hint> |
| </question> |
| --> |
| <answer id="lookup-lookup"> |
| <ul> |
| <li>ClassLoader.class</li> |
| <li>ServiceType.Registry.class</li> |
| <li>ExecutionEngine.class</li> |
| <li>ScriptType.class</li> |
| </ul> |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="lookup-register"> |
| Do you register anything into lookup for other code to find? |
| <hint> |
| Do you register using layer file or using <code>META-INF/services</code>? |
| Who is supposed to find your component? |
| </hint> |
| </question> |
| --> |
| <answer id="lookup-register"> |
| In META-INF/services: |
| <ul> |
| <li>java.net.URLStreamHandlerFactory</li> |
| <li>org.openide.execution.ExecutionEngine</li> |
| </ul> |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="lookup-remove"> |
| Do you remove entries of other modules from lookup? |
| <hint> |
| Why? Of course, that is possible, but it can be dangerous. Is the module |
| your are masking resource from aware of what you are doing? |
| </hint> |
| </question> |
| --> |
| <answer id="lookup-remove"> |
| No. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="perf-exit"> |
| Does your module run any code on exit? |
| </question> |
| --> |
| <answer id="perf-exit"> |
| Yes. It runs a dialog prompting the user to shut down the external |
| processes. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="perf-huge_dialogs"> |
| Does your module contain any dialogs or wizards with a large number of |
| GUI controls such as combo boxes, lists, trees, or text areas? |
| </question> |
| --> |
| <answer id="perf-huge_dialogs"> |
| No. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="perf-limit"> |
| Are there any hardcoded or practical limits in the number or size of |
| elements your code can handle? |
| </question> |
| --> |
| <answer id="perf-limit"> |
| No. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="perf-mem"> |
| How much memory does your component consume? Estimate |
| with a relation to the number of windows, etc. |
| </question> |
| --> |
| <answer id="perf-mem"> |
| No answer |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="perf-menus"> |
| Does your module use dynamically updated context menus, or |
| context-sensitive actions with complicated enablement logic? |
| </question> |
| --> |
| <answer id="perf-menus"> |
| No. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="perf-progress"> |
| Does your module execute any long-running tasks? |
| <hint>Typically they are tasks like connecting over |
| network, computing huge amount of data, compilation. |
| Such communication should be done asynchronously (for example |
| using <code>RequestProcessor</code>), definitively it should |
| not block AWT thread. |
| </hint> |
| </question> |
| --> |
| <answer id="perf-progress"> |
| The module executes external processes. It does not block the AWT thread. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="perf-scale"> |
| Which external criteria influence the performance of your |
| program (size of file in editor, number of files in menu, |
| in source directory, etc.) and how well your code scales? |
| Please include some estimates. |
| </question> |
| --> |
| <answer id="perf-scale"> |
| The code should scale linarly with number of running processes. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="perf-startup"> |
| Does your module run any code on startup? |
| </question> |
| --> |
| <answer id="perf-startup"> |
| No. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="perf-wakeup"> |
| Does any piece of your code wake up periodically and do something |
| even when the system is otherwise idle (no user interaction)? |
| </question> |
| --> |
| <answer id="perf-wakeup"> |
| No. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="resources-file"> |
| Does your module use <code>java.io.File</code> directly? |
| |
| <hint> |
| NetBeans provide a logical wrapper over plain files called |
| <code>org.openide.filesystems.FileObject</code> that |
| provides uniform access to such resources and is the prefered |
| way that should be used. But of course there can be situations when |
| this is not suitable. |
| </hint> |
| </question> |
| --> |
| <answer id="resources-file"> |
| Yes. It uses java.io.File representing items on classpath (NbClassPath). |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="resources-layer"> |
| Does your module provide own layer? Does it create any files or |
| folders in it? What it is trying to communicate by that and with which |
| components? |
| |
| <hint> |
| NetBeans allows automatic and declarative installation of resources |
| by module layers. Module register files into appropriate places |
| and other components use that information to perform their task |
| (build menu, toolbar, window layout, list of templates, set of |
| options, etc.). |
| </hint> |
| </question> |
| --> |
| <answer id="resources-layer"> |
| Yes. It provides its own layer. It creates menu items, services, templates |
| and window system components. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="resources-mask"> |
| Does your module mask/hide/override any resources provided by other modules in |
| their layers? |
| |
| <hint> |
| If you mask a file provided by another module, you probably depend |
| on that and do not want the other module to (for example) change |
| the file's name. That module shall thus make that file available as an API |
| of some stability category. |
| </hint> |
| </question> |
| --> |
| <answer id="resources-mask"> |
| No. |
| </answer> |
| |
| |
| |
| <!-- |
| <question id="resources-read"> |
| Does your module read any resources from layers? For what purpose? |
| |
| <hint> |
| As this is some kind of intermodule dependency, it is a kind of API. |
| Please describe it and clasify according to |
| <a href="http://openide.netbeans.org/tutorial/api-design.html#categories"> |
| common stability categories</a>. |
| </hint> |
| </question> |
| --> |
| <answer id="resources-read"> |
| No answer |
| </answer> |
| |
| </api-answers> |
