Remove AgentPluginFeatures as they are undocumented
The current implementation is undocumented so it's not clear exactly what it's intended to do. It also appears to overreach as, for example, it affects every JavaExec task in a project. We may need to reinstate something that's somewhat equivalent, but I'd like to do that armed with more information about the intent of the functionality and some specific problems that need to be solved.pull/8686/merge
Andy Wilkinson
8 years ago
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/*
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* Copyright 2012-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.boot.gradle.agent;
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import org.gradle.api.Project;
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import org.springframework.boot.gradle.PluginFeatures;
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/**
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* {@link PluginFeatures} to add Java Agent support.
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*
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* @author Phillip Webb
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*/
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public class AgentPluginFeatures implements PluginFeatures {
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@Override
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public void apply(Project project) {
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project.afterEvaluate(new AgentTasksEnhancer());
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}
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}
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/*
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* Copyright 2012-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.boot.gradle.agent;
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import java.io.File;
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import java.net.URISyntaxException;
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import java.security.CodeSource;
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import org.gradle.api.Action;
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import org.gradle.api.Project;
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import org.gradle.api.Task;
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import org.gradle.api.tasks.JavaExec;
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import org.springframework.boot.gradle.SpringBootPluginExtension;
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/**
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* Add a java agent to the "run" task if configured. You can add an agent in 3 ways (4 if
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* you want to use native gradle features as well):
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*
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* <ol>
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* <li>Use "-Prun.agent=[path-to-jar]" on the gradle command line</li>
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* <li>Add an "agent" property (jar file) to the "springBoot" extension in build.gradle
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* </li>
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* <li>As a special case springloaded is detected as a build script dependency</li>
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* </ol>
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*
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* @author Dave Syer
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* @author Phillip Webb
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*/
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public class AgentTasksEnhancer implements Action<Project> {
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private static final String SPRING_LOADED_AGENT_CLASS_NAME = "org.springsource.loaded.agent.SpringLoadedAgent";
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private File agent;
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private Boolean noverify;
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@Override
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public void execute(Project project) {
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setup(project);
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if (this.agent != null) {
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for (Task task : project.getTasks()) {
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addAgent(project, task);
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}
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}
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}
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private void setup(Project project) {
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project.getLogger().info("Configuring agent");
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SpringBootPluginExtension extension = project.getExtensions()
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.getByType(SpringBootPluginExtension.class);
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this.noverify = extension.getNoverify();
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this.agent = getAgent(project, extension);
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if (this.agent == null) {
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this.agent = getSpringLoadedAgent();
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if (this.noverify == null) {
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this.noverify = true;
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}
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}
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project.getLogger().debug("Agent: " + this.agent);
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}
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private File getAgent(Project project, SpringBootPluginExtension extension) {
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if (project.hasProperty("run.agent")) {
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return project.file(project.property("run.agent"));
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}
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return extension.getAgent();
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}
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private File getSpringLoadedAgent() {
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try {
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Class<?> loaded = Class.forName(SPRING_LOADED_AGENT_CLASS_NAME);
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if (loaded != null) {
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CodeSource source = loaded.getProtectionDomain().getCodeSource();
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if (source != null) {
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try {
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return new File(source.getLocation().toURI());
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}
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catch (URISyntaxException ex) {
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return new File(source.getLocation().getPath());
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}
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}
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}
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}
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catch (ClassNotFoundException ex) {
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// ignore;
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}
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return null;
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}
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private void addAgent(Project project, Task task) {
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if (task instanceof JavaExec) {
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addAgent(project, (JavaExec) task);
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}
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}
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private void addAgent(Project project, JavaExec exec) {
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project.getLogger().debug("Attaching to: " + exec);
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if (this.agent != null) {
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project.getLogger().info("Attaching agent: " + this.agent);
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exec.jvmArgs("-javaagent:" + this.agent.getAbsolutePath());
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if (this.noverify != null && this.noverify) {
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exec.jvmArgs("-noverify");
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}
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Iterable<?> defaultJvmArgs = exec.getConventionMapping()
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.getConventionValue(null, "jvmArgs", false);
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if (defaultJvmArgs != null) {
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exec.jvmArgs(defaultJvmArgs);
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}
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}
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}
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}
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