<!--
  - SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  - SPDX-License-Identifier: AGPL-3.0-or-later
-->
<template>
	<span />
</template>

<script lang="ts">
/**
 * This component is used to render custom
 * elements provided by an API. Vue doesn't allow
 * to directly render an HTMLElement, so we can do
 * this magic here.
 */
export default {
	name: 'CustomElementRender',
	props: {
		source: {
			type: Object,
			required: true,
		},
		currentView: {
			type: Object,
			required: true,
		},
		render: {
			type: Function,
			required: true,
		},
	},
	watch: {
		source() {
			this.updateRootElement()
		},
		currentView() {
			this.updateRootElement()
		},
	},
	mounted() {
		this.updateRootElement()
	},
	methods: {
		async updateRootElement() {
			const element = await this.render(this.source, this.currentView)
			if (element) {
				this.$el.replaceChildren(element)
			} else {
				this.$el.replaceChildren()
			}
		},
	},
}
</script>
on value='#405'>#405</option>
<option value='#520'>#520</option>
<option value='#526'>#526</option>
<option value='#576'>#576</option>
<option value='2.x'>2.x</option>
<option value='async'>async</option>
<option value='coverage'>coverage</option>
<option value='file_to_path'>file_to_path</option>
<option value='master' selected='selected'>master</option>
<option value='org'>org</option>
<option value='pf4j-tests-jar'>pf4j-tests-jar</option>
<option value='pf4j_3'>pf4j_3</option>
<option value='plugin_context'>plugin_context</option>
<option value='plugin_loaded_classes'>plugin_loaded_classes</option>
<option value='remove_travis'>remove_travis</option>
<option value='resolve_recovery_strategy'>resolve_recovery_strategy</option>
<option value='slf4j_2.x'>slf4j_2.x</option>
<option value='sonar'>sonar</option>
<option value='test_class_gen'>test_class_gen</option>
<option value='version_manager'>version_manager</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Plugin Framework for Java (PF4J): https://github.com/pf4j/pf4j</td><td class='sub right'>www-data</td></tr></table>
<table class='tabs'><tr><td>
<a href='/pf4j.git/about/'>about</a><a href='/pf4j.git/'>summary</a><a href='/pf4j.git/refs/?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>refs</a><a href='/pf4j.git/log/pf4j/src/main/java/org/pf4j/DependencyResolver.java'>log</a><a class='active' href='/pf4j.git/tree/pf4j/src/main/java/org/pf4j/DependencyResolver.java?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>tree</a><a href='/pf4j.git/commit/pf4j/src/main/java/org/pf4j/DependencyResolver.java?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>commit</a><a href='/pf4j.git/diff/pf4j/src/main/java/org/pf4j/DependencyResolver.java?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>diff</a><a href='/pf4j.git/stats/pf4j/src/main/java/org/pf4j/DependencyResolver.java'>stats</a></td><td class='form'><form class='right' method='get' action='/pf4j.git/log/pf4j/src/main/java/org/pf4j/DependencyResolver.java'>
<input type='hidden' name='id' value='05d9ebcfafbb057ed070cbc85800368fe4288952'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/pf4j.git/tree/?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>root</a>/<a href='/pf4j.git/tree/pf4j?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>pf4j</a>/<a href='/pf4j.git/tree/pf4j/src?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>src</a>/<a href='/pf4j.git/tree/pf4j/src/main?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>main</a>/<a href='/pf4j.git/tree/pf4j/src/main/java?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>java</a>/<a href='/pf4j.git/tree/pf4j/src/main/java/org?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>org</a>/<a href='/pf4j.git/tree/pf4j/src/main/java/org/pf4j?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>pf4j</a>/<a href='/pf4j.git/tree/pf4j/src/main/java/org/pf4j/DependencyResolver.java?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>DependencyResolver.java</a></div><div class='content'>blob: 45005e2db8755f0651c0c746a2f9264066e3d175 (<a href='/pf4j.git/plain/pf4j/src/main/java/org/pf4j/DependencyResolver.java?id=05d9ebcfafbb057ed070cbc85800368fe4288952'>plain</a>)
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</pre></td>
<td class='lines'><pre><code><style>pre { line-height: 125%; }
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td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span><span class="cm">/*</span>
<span class="cm"> * Copyright (C) 2012-present the original author or authors.</span>
<span class="cm"> *</span>
<span class="cm"> * Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span>
<span class="cm"> * you may not use this file except in compliance with the License.</span>
<span class="cm"> * You may obtain a copy of the License at</span>
<span class="cm"> *</span>
<span class="cm"> *     http://www.apache.org/licenses/LICENSE-2.0</span>
<span class="cm"> *</span>
<span class="cm"> * Unless required by applicable law or agreed to in writing, software</span>
<span class="cm"> * distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span>
<span class="cm"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<span class="cm"> * See the License for the specific language governing permissions and</span>
<span class="cm"> * limitations under the License.</span>
<span class="cm"> */</span>
<span class="kn">package</span><span class="w"> </span><span class="nn">org.pf4j</span><span class="p">;</span>

<span class="kn">import</span><span class="w"> </span><span class="nn">org.slf4j.Logger</span><span class="p">;</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">org.slf4j.LoggerFactory</span><span class="p">;</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">org.pf4j.util.DirectedGraph</span><span class="p">;</span>

<span class="kn">import</span><span class="w"> </span><span class="nn">java.util.ArrayList</span><span class="p">;</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">java.util.Collections</span><span class="p">;</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">java.util.HashMap</span><span class="p">;</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">java.util.List</span><span class="p">;</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">java.util.Map</span><span class="p">;</span>

<span class="cm">/**</span>
<span class="cm"> * This class builds a dependency graph for a list of plugins (descriptors).</span>
<span class="cm"> * The entry point is the {@link #resolve(List)} method, method that returns a {@link Result} object.</span>
<span class="cm"> * The {@code Result} class contains nice information about the result of resolve operation (if it&#39;s a cyclic dependency,</span>
<span class="cm"> * they are not found dependencies, they are dependencies with wrong version).</span>
<span class="cm"> * This class is very useful for if-else scenarios.</span>
<span class="cm"> *</span>
<span class="cm"> * Only some attributes (pluginId, dependencies and pluginVersion) from {@link PluginDescriptor} are used in</span>
<span class="cm"> * the process of {@code resolve} operation.</span>
<span class="cm"> *</span>
<span class="cm"> * @author Decebal Suiu</span>
<span class="cm"> */</span>
<span class="kd">public</span><span class="w"> </span><span class="kd">class</span> <span class="nc">DependencyResolver</span><span class="w"> </span><span class="p">{</span>

<span class="w">    </span><span class="kd">private</span><span class="w"> </span><span class="kd">static</span><span class="w"> </span><span class="kd">final</span><span class="w"> </span><span class="n">Logger</span><span class="w"> </span><span class="n">log</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">LoggerFactory</span><span class="p">.</span><span class="na">getLogger</span><span class="p">(</span><span class="n">DependencyResolver</span><span class="p">.</span><span class="na">class</span><span class="p">);</span>

<span class="w">    </span><span class="kd">private</span><span class="w"> </span><span class="n">VersionManager</span><span class="w"> </span><span class="n">versionManager</span><span class="p">;</span>

<span class="w">    </span><span class="kd">private</span><span class="w"> </span><span class="n">DirectedGraph</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="n">dependenciesGraph</span><span class="p">;</span><span class="w"> </span><span class="c1">// the value is &#39;pluginId&#39;</span>
<span class="w">    </span><span class="kd">private</span><span class="w"> </span><span class="n">DirectedGraph</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="n">dependentsGraph</span><span class="p">;</span><span class="w"> </span><span class="c1">// the value is &#39;pluginId&#39;</span>
<span class="w">    </span><span class="kd">private</span><span class="w"> </span><span class="kt">boolean</span><span class="w"> </span><span class="n">resolved</span><span class="p">;</span>

<span class="w">    </span><span class="kd">public</span><span class="w"> </span><span class="nf">DependencyResolver</span><span class="p">(</span><span class="n">VersionManager</span><span class="w"> </span><span class="n">versionManager</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">        </span><span class="k">this</span><span class="p">.</span><span class="na">versionManager</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">versionManager</span><span class="p">;</span>
<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="kd">public</span><span class="w"> </span><span class="n">Result</span><span class="w"> </span><span class="nf">resolve</span><span class="p">(</span><span class="n">List</span><span class="o">&lt;</span><span class="n">PluginDescriptor</span><span class="o">&gt;</span><span class="w"> </span><span class="n">plugins</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">        </span><span class="c1">// create graphs</span>
<span class="w">        </span><span class="n">dependenciesGraph</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">DirectedGraph</span><span class="o">&lt;&gt;</span><span class="p">();</span>
<span class="w">        </span><span class="n">dependentsGraph</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">DirectedGraph</span><span class="o">&lt;&gt;</span><span class="p">();</span>

<span class="w">        </span><span class="c1">// populate graphs</span>
<span class="w">        </span><span class="n">Map</span><span class="o">&lt;</span><span class="n">String</span><span class="p">,</span><span class="w"> </span><span class="n">PluginDescriptor</span><span class="o">&gt;</span><span class="w"> </span><span class="n">pluginByIds</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">HashMap</span><span class="o">&lt;&gt;</span><span class="p">();</span>
<span class="w">        </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">PluginDescriptor</span><span class="w"> </span><span class="n">plugin</span><span class="w"> </span><span class="p">:</span><span class="w"> </span><span class="n">plugins</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="n">addPlugin</span><span class="p">(</span><span class="n">plugin</span><span class="p">);</span>
<span class="w">            </span><span class="n">pluginByIds</span><span class="p">.</span><span class="na">put</span><span class="p">(</span><span class="n">plugin</span><span class="p">.</span><span class="na">getPluginId</span><span class="p">(),</span><span class="w"> </span><span class="n">plugin</span><span class="p">);</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="n">log</span><span class="p">.</span><span class="na">debug</span><span class="p">(</span><span class="s">&quot;Graph: {}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">dependenciesGraph</span><span class="p">);</span>

<span class="w">        </span><span class="c1">// get a sorted list of dependencies</span>
<span class="w">        </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="n">sortedPlugins</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dependenciesGraph</span><span class="p">.</span><span class="na">reverseTopologicalSort</span><span class="p">();</span>
<span class="w">        </span><span class="n">log</span><span class="p">.</span><span class="na">debug</span><span class="p">(</span><span class="s">&quot;Plugins order: {}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">sortedPlugins</span><span class="p">);</span>

<span class="w">        </span><span class="c1">// create the result object</span>
<span class="w">        </span><span class="n">Result</span><span class="w"> </span><span class="n">result</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">Result</span><span class="p">(</span><span class="n">sortedPlugins</span><span class="p">);</span>

<span class="w">        </span><span class="n">resolved</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">true</span><span class="p">;</span>

<span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">sortedPlugins</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="c1">// no cyclic dependency</span>
<span class="w">            </span><span class="c1">// detect not found dependencies</span>
<span class="w">            </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">String</span><span class="w"> </span><span class="n">pluginId</span><span class="w"> </span><span class="p">:</span><span class="w"> </span><span class="n">sortedPlugins</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">                </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">pluginByIds</span><span class="p">.</span><span class="na">containsKey</span><span class="p">(</span><span class="n">pluginId</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<span class="w">                    </span><span class="n">result</span><span class="p">.</span><span class="na">addNotFoundDependency</span><span class="p">(</span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">                </span><span class="p">}</span>
<span class="w">            </span><span class="p">}</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="c1">// check dependencies versions</span>
<span class="w">        </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">PluginDescriptor</span><span class="w"> </span><span class="n">plugin</span><span class="w"> </span><span class="p">:</span><span class="w"> </span><span class="n">plugins</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="n">String</span><span class="w"> </span><span class="n">pluginId</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">plugin</span><span class="p">.</span><span class="na">getPluginId</span><span class="p">();</span>
<span class="w">            </span><span class="n">String</span><span class="w"> </span><span class="n">existingVersion</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">plugin</span><span class="p">.</span><span class="na">getVersion</span><span class="p">();</span>

<span class="w">            </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="n">dependents</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o">&lt;&gt;</span><span class="p">(</span><span class="n">getDependents</span><span class="p">(</span><span class="n">pluginId</span><span class="p">));</span>
<span class="w">            </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">dependents</span><span class="p">.</span><span class="na">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
<span class="w">                </span><span class="n">String</span><span class="w"> </span><span class="n">dependentId</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dependents</span><span class="p">.</span><span class="na">remove</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span>
<span class="w">                </span><span class="n">PluginDescriptor</span><span class="w"> </span><span class="n">dependent</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">pluginByIds</span><span class="p">.</span><span class="na">get</span><span class="p">(</span><span class="n">dependentId</span><span class="p">);</span>
<span class="w">                </span><span class="n">String</span><span class="w"> </span><span class="n">requiredVersion</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">getDependencyVersionSupport</span><span class="p">(</span><span class="n">dependent</span><span class="p">,</span><span class="w"> </span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">                </span><span class="kt">boolean</span><span class="w"> </span><span class="n">ok</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">checkDependencyVersion</span><span class="p">(</span><span class="n">requiredVersion</span><span class="p">,</span><span class="w"> </span><span class="n">existingVersion</span><span class="p">);</span>
<span class="w">                </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">ok</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">                    </span><span class="n">result</span><span class="p">.</span><span class="na">addWrongDependencyVersion</span><span class="p">(</span><span class="k">new</span><span class="w"> </span><span class="n">WrongDependencyVersion</span><span class="p">(</span><span class="n">pluginId</span><span class="p">,</span><span class="w"> </span><span class="n">dependentId</span><span class="p">,</span><span class="w"> </span><span class="n">existingVersion</span><span class="p">,</span><span class="w"> </span><span class="n">requiredVersion</span><span class="p">));</span>
<span class="w">                </span><span class="p">}</span>
<span class="w">            </span><span class="p">}</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">result</span><span class="p">;</span>
<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="cm">/**</span>
<span class="cm">     * Retrieves the plugins ids that the given plugin id directly depends on.</span>
<span class="cm">     *</span>
<span class="cm">     * @param pluginId the unique plugin identifier, specified in its metadata</span>
<span class="cm">     * @return</span>
<span class="cm">     */</span>
<span class="w">    </span><span class="kd">public</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="nf">getDependencies</span><span class="p">(</span><span class="n">String</span><span class="w"> </span><span class="n">pluginId</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">        </span><span class="n">checkResolved</span><span class="p">();</span>
<span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">dependenciesGraph</span><span class="p">.</span><span class="na">getNeighbors</span><span class="p">(</span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="cm">/**</span>
<span class="cm">     * Retrieves the plugins ids that the given content is a direct dependency of.</span>
<span class="cm">     *</span>
<span class="cm">     * @param pluginId the unique plugin identifier, specified in its metadata</span>
<span class="cm">     * @return</span>
<span class="cm">     */</span>
<span class="w">    </span><span class="kd">public</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="nf">getDependents</span><span class="p">(</span><span class="n">String</span><span class="w"> </span><span class="n">pluginId</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">        </span><span class="n">checkResolved</span><span class="p">();</span>
<span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">dependentsGraph</span><span class="p">.</span><span class="na">getNeighbors</span><span class="p">(</span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="cm">/**</span>
<span class="cm">     * Check if an existing version of dependency is compatible with the required version (from plugin descriptor).</span>
<span class="cm">     *</span>
<span class="cm">     * @param requiredVersion</span>
<span class="cm">     * @param existingVersion</span>
<span class="cm">     * @return</span>
<span class="cm">     */</span>
<span class="w">    </span><span class="kd">protected</span><span class="w"> </span><span class="kt">boolean</span><span class="w"> </span><span class="nf">checkDependencyVersion</span><span class="p">(</span><span class="n">String</span><span class="w"> </span><span class="n">requiredVersion</span><span class="p">,</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="n">existingVersion</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">versionManager</span><span class="p">.</span><span class="na">checkVersionConstraint</span><span class="p">(</span><span class="n">existingVersion</span><span class="p">,</span><span class="w"> </span><span class="n">requiredVersion</span><span class="p">);</span>
<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="kd">private</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">addPlugin</span><span class="p">(</span><span class="n">PluginDescriptor</span><span class="w"> </span><span class="n">descriptor</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">        </span><span class="n">String</span><span class="w"> </span><span class="n">pluginId</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">descriptor</span><span class="p">.</span><span class="na">getPluginId</span><span class="p">();</span>
<span class="w">        </span><span class="n">List</span><span class="o">&lt;</span><span class="n">PluginDependency</span><span class="o">&gt;</span><span class="w"> </span><span class="n">dependencies</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">descriptor</span><span class="p">.</span><span class="na">getDependencies</span><span class="p">();</span>
<span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">dependencies</span><span class="p">.</span><span class="na">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="n">dependenciesGraph</span><span class="p">.</span><span class="na">addVertex</span><span class="p">(</span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">            </span><span class="n">dependentsGraph</span><span class="p">.</span><span class="na">addVertex</span><span class="p">(</span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">        </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="kt">boolean</span><span class="w"> </span><span class="n">edgeAdded</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">false</span><span class="p">;</span>
<span class="w">            </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">PluginDependency</span><span class="w"> </span><span class="n">dependency</span><span class="w"> </span><span class="p">:</span><span class="w"> </span><span class="n">dependencies</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">                </span><span class="c1">// Don&#39;t register optional plugins in the dependency graph to avoid automatic disabling of the plugin,</span>
<span class="w">                </span><span class="c1">// if an optional dependency is missing.</span>
<span class="w">                </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">dependency</span><span class="p">.</span><span class="na">isOptional</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
<span class="w">                    </span><span class="n">edgeAdded</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">true</span><span class="p">;</span>
<span class="w">                    </span><span class="n">dependenciesGraph</span><span class="p">.</span><span class="na">addEdge</span><span class="p">(</span><span class="n">pluginId</span><span class="p">,</span><span class="w"> </span><span class="n">dependency</span><span class="p">.</span><span class="na">getPluginId</span><span class="p">());</span>
<span class="w">                    </span><span class="n">dependentsGraph</span><span class="p">.</span><span class="na">addEdge</span><span class="p">(</span><span class="n">dependency</span><span class="p">.</span><span class="na">getPluginId</span><span class="p">(),</span><span class="w"> </span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">                </span><span class="p">}</span>
<span class="w">            </span><span class="p">}</span>

<span class="w">            </span><span class="c1">// Register the plugin without dependencies, if all of its dependencies are optional.</span>
<span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">edgeAdded</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">                </span><span class="n">dependenciesGraph</span><span class="p">.</span><span class="na">addVertex</span><span class="p">(</span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">                </span><span class="n">dependentsGraph</span><span class="p">.</span><span class="na">addVertex</span><span class="p">(</span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">            </span><span class="p">}</span>
<span class="w">        </span><span class="p">}</span>
<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="kd">private</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">checkResolved</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">resolved</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IllegalStateException</span><span class="p">(</span><span class="s">&quot;Call &#39;resolve&#39; method first&quot;</span><span class="p">);</span>
<span class="w">        </span><span class="p">}</span>
<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="kd">private</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="nf">getDependencyVersionSupport</span><span class="p">(</span><span class="n">PluginDescriptor</span><span class="w"> </span><span class="n">dependent</span><span class="p">,</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="n">dependencyId</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">        </span><span class="n">List</span><span class="o">&lt;</span><span class="n">PluginDependency</span><span class="o">&gt;</span><span class="w"> </span><span class="n">dependencies</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dependent</span><span class="p">.</span><span class="na">getDependencies</span><span class="p">();</span>
<span class="w">        </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">PluginDependency</span><span class="w"> </span><span class="n">dependency</span><span class="w"> </span><span class="p">:</span><span class="w"> </span><span class="n">dependencies</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">dependencyId</span><span class="p">.</span><span class="na">equals</span><span class="p">(</span><span class="n">dependency</span><span class="p">.</span><span class="na">getPluginId</span><span class="p">()))</span><span class="w"> </span><span class="p">{</span>
<span class="w">                </span><span class="k">return</span><span class="w"> </span><span class="n">dependency</span><span class="p">.</span><span class="na">getPluginVersionSupport</span><span class="p">();</span>
<span class="w">            </span><span class="p">}</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IllegalStateException</span><span class="p">(</span><span class="s">&quot;Cannot find a dependency with id &#39;&quot;</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">dependencyId</span><span class="w"> </span><span class="o">+</span>
<span class="w">            </span><span class="s">&quot;&#39; for plugin &#39;&quot;</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">dependent</span><span class="p">.</span><span class="na">getPluginId</span><span class="p">()</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="s">&quot;&#39;&quot;</span><span class="p">);</span>
<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="kd">public</span><span class="w"> </span><span class="kd">static</span><span class="w"> </span><span class="kd">class</span> <span class="nc">Result</span><span class="w"> </span><span class="p">{</span>

<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="kt">boolean</span><span class="w"> </span><span class="n">cyclicDependency</span><span class="p">;</span>
<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="n">notFoundDependencies</span><span class="p">;</span><span class="w"> </span><span class="c1">// value is &quot;pluginId&quot;</span>
<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="n">sortedPlugins</span><span class="p">;</span><span class="w"> </span><span class="c1">// value is &quot;pluginId&quot;</span>
<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">WrongDependencyVersion</span><span class="o">&gt;</span><span class="w"> </span><span class="n">wrongVersionDependencies</span><span class="p">;</span>

<span class="w">        </span><span class="n">Result</span><span class="p">(</span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="n">sortedPlugins</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">sortedPlugins</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">                </span><span class="n">cyclicDependency</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">true</span><span class="p">;</span>
<span class="w">                </span><span class="k">this</span><span class="p">.</span><span class="na">sortedPlugins</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Collections</span><span class="p">.</span><span class="na">emptyList</span><span class="p">();</span>
<span class="w">            </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<span class="w">                </span><span class="k">this</span><span class="p">.</span><span class="na">sortedPlugins</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o">&lt;&gt;</span><span class="p">(</span><span class="n">sortedPlugins</span><span class="p">);</span>
<span class="w">            </span><span class="p">}</span>

<span class="w">            </span><span class="n">notFoundDependencies</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o">&lt;&gt;</span><span class="p">();</span>
<span class="w">            </span><span class="n">wrongVersionDependencies</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o">&lt;&gt;</span><span class="p">();</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="cm">/**</span>
<span class="cm">         * Returns true is a cyclic dependency was detected.</span>
<span class="cm">         */</span>
<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="kt">boolean</span><span class="w"> </span><span class="nf">hasCyclicDependency</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">cyclicDependency</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="cm">/**</span>
<span class="cm">         * Returns a list with dependencies required that were not found.</span>
<span class="cm">         */</span>
<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="nf">getNotFoundDependencies</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">notFoundDependencies</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="cm">/**</span>
<span class="cm">         * Returns a list with dependencies with wrong version.</span>
<span class="cm">         */</span>
<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">WrongDependencyVersion</span><span class="o">&gt;</span><span class="w"> </span><span class="nf">getWrongVersionDependencies</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">wrongVersionDependencies</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="cm">/**</span>
<span class="cm">         * Get the list of plugins in dependency sorted order.</span>
<span class="cm">         */</span>
<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="nf">getSortedPlugins</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">sortedPlugins</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="kt">void</span><span class="w"> </span><span class="nf">addNotFoundDependency</span><span class="p">(</span><span class="n">String</span><span class="w"> </span><span class="n">pluginId</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="n">notFoundDependencies</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">pluginId</span><span class="p">);</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="kt">void</span><span class="w"> </span><span class="nf">addWrongDependencyVersion</span><span class="p">(</span><span class="n">WrongDependencyVersion</span><span class="w"> </span><span class="n">wrongDependencyVersion</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="n">wrongVersionDependencies</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">wrongDependencyVersion</span><span class="p">);</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="kd">public</span><span class="w"> </span><span class="kd">static</span><span class="w"> </span><span class="kd">class</span> <span class="nc">WrongDependencyVersion</span><span class="w"> </span><span class="p">{</span>

<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="n">dependencyId</span><span class="p">;</span><span class="w"> </span><span class="c1">// value is &quot;pluginId&quot;</span>
<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="n">dependentId</span><span class="p">;</span><span class="w"> </span><span class="c1">// value is &quot;pluginId&quot;</span>
<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="n">existingVersion</span><span class="p">;</span>
<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="n">requiredVersion</span><span class="p">;</span>

<span class="w">        </span><span class="n">WrongDependencyVersion</span><span class="p">(</span><span class="n">String</span><span class="w"> </span><span class="n">dependencyId</span><span class="p">,</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="n">dependentId</span><span class="p">,</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="n">existingVersion</span><span class="p">,</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="n">requiredVersion</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">this</span><span class="p">.</span><span class="na">dependencyId</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dependencyId</span><span class="p">;</span>
<span class="w">            </span><span class="k">this</span><span class="p">.</span><span class="na">dependentId</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dependentId</span><span class="p">;</span>
<span class="w">            </span><span class="k">this</span><span class="p">.</span><span class="na">existingVersion</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">existingVersion</span><span class="p">;</span>
<span class="w">            </span><span class="k">this</span><span class="p">.</span><span class="na">requiredVersion</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">requiredVersion</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="nf">getDependencyId</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">dependencyId</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="nf">getDependentId</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">dependentId</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="nf">getExistingVersion</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">existingVersion</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="nf">getRequiredVersion</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">requiredVersion</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="cm">/**</span>
<span class="cm">     * It will be thrown if a cyclic dependency is detected.</span>
<span class="cm">     */</span>
<span class="w">    </span><span class="kd">public</span><span class="w"> </span><span class="kd">static</span><span class="w"> </span><span class="kd">class</span> <span class="nc">CyclicDependencyException</span><span class="w"> </span><span class="kd">extends</span><span class="w"> </span><span class="n">PluginRuntimeException</span><span class="w"> </span><span class="p">{</span>

<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="nf">CyclicDependencyException</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="kd">super</span><span class="p">(</span><span class="s">&quot;Cyclic dependencies&quot;</span><span class="p">);</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="cm">/**</span>
<span class="cm">     * Indicates that the dependencies required were not found.</span>
<span class="cm">     */</span>
<span class="w">    </span><span class="kd">public</span><span class="w"> </span><span class="kd">static</span><span class="w"> </span><span class="kd">class</span> <span class="nc">DependenciesNotFoundException</span><span class="w"> </span><span class="kd">extends</span><span class="w"> </span><span class="n">PluginRuntimeException</span><span class="w"> </span><span class="p">{</span>

<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="n">dependencies</span><span class="p">;</span>

<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="nf">DependenciesNotFoundException</span><span class="p">(</span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="n">dependencies</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="kd">super</span><span class="p">(</span><span class="s">&quot;Dependencies &#39;{}&#39; not found&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">dependencies</span><span class="p">);</span>

<span class="w">            </span><span class="k">this</span><span class="p">.</span><span class="na">dependencies</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dependencies</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">String</span><span class="o">&gt;</span><span class="w"> </span><span class="nf">getDependencies</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">dependencies</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">    </span><span class="p">}</span>

<span class="w">    </span><span class="cm">/**</span>
<span class="cm">     * Indicates that some dependencies have wrong version.</span>
<span class="cm">     */</span>
<span class="w">    </span><span class="kd">public</span><span class="w"> </span><span class="kd">static</span><span class="w"> </span><span class="kd">class</span> <span class="nc">DependenciesWrongVersionException</span><span class="w"> </span><span class="kd">extends</span><span class="w"> </span><span class="n">PluginRuntimeException</span><span class="w"> </span><span class="p">{</span>

<span class="w">        </span><span class="kd">private</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">WrongDependencyVersion</span><span class="o">&gt;</span><span class="w"> </span><span class="n">dependencies</span><span class="p">;</span>

<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="nf">DependenciesWrongVersionException</span><span class="p">(</span><span class="n">List</span><span class="o">&lt;</span><span class="n">WrongDependencyVersion</span><span class="o">&gt;</span><span class="w"> </span><span class="n">dependencies</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="kd">super</span><span class="p">(</span><span class="s">&quot;Dependencies &#39;{}&#39; have wrong version&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">dependencies</span><span class="p">);</span>

<span class="w">            </span><span class="k">this</span><span class="p">.</span><span class="na">dependencies</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dependencies</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">        </span><span class="kd">public</span><span class="w"> </span><span class="n">List</span><span class="o">&lt;</span><span class="n">WrongDependencyVersion</span><span class="o">&gt;</span><span class="w"> </span><span class="nf">getDependencies</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
<span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">dependencies</span><span class="p">;</span>
<span class="w">        </span><span class="p">}</span>

<span class="w">    </span><span class="p">}</span>

<span class="p">}</span>
</pre></div>
