]> git.argeo.org Git - gpl/argeo-slc.git/blobdiff - org.argeo.slc.agent/src/main/java/org/argeo/slc/ant/SlcProjectHelper.java
Introduce agent project
[gpl/argeo-slc.git] / org.argeo.slc.agent / src / main / java / org / argeo / slc / ant / SlcProjectHelper.java
diff --git a/org.argeo.slc.agent/src/main/java/org/argeo/slc/ant/SlcProjectHelper.java b/org.argeo.slc.agent/src/main/java/org/argeo/slc/ant/SlcProjectHelper.java
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+package org.argeo.slc.ant;\r
+\r
+import java.io.File;\r
+import java.io.IOException;\r
+import java.io.InputStream;\r
+import java.net.InetAddress;\r
+import java.net.UnknownHostException;\r
+import java.util.List;\r
+import java.util.Map;\r
+import java.util.Properties;\r
+import java.util.UUID;\r
+import java.util.Vector;\r
+\r
+import org.springframework.beans.factory.ListableBeanFactory;\r
+import org.springframework.context.ApplicationContext;\r
+import org.springframework.context.support.AbstractApplicationContext;\r
+import org.springframework.context.support.FileSystemXmlApplicationContext;\r
+\r
+import org.apache.commons.logging.Log;\r
+import org.apache.commons.logging.LogFactory;\r
+import org.apache.log4j.LogManager;\r
+import org.apache.tools.ant.BuildException;\r
+import org.apache.tools.ant.BuildListener;\r
+import org.apache.tools.ant.Project;\r
+import org.apache.tools.ant.helper.ProjectHelper2;\r
+\r
+import org.argeo.slc.core.process.SlcExecution;\r
+import org.argeo.slc.core.process.SlcExecutionNotifier;\r
+import org.argeo.slc.core.structure.DefaultSRegistry;\r
+import org.argeo.slc.core.structure.SimpleSElement;\r
+import org.argeo.slc.core.structure.StructureRegistry;\r
+import org.argeo.slc.core.structure.tree.TreeSPath;\r
+\r
+/**\r
+ * Custom implementation of an Ant <code>ProjectHelper</code> binding a Spring\r
+ * application context and a structure registry with the Ant project.\r
+ */\r
+public class SlcProjectHelper extends ProjectHelper2 {\r
+       private static Log log;\r
+\r
+       /** The Ant reference to the Spring application context used. */\r
+       public static String REF_ROOT_CONTEXT = "slcApplicationContext";\r
+       /** The Ant reference to the SLC structure registry used. */\r
+       public static String REF_STRUCTURE_REGISTRY = "slcStructureRegistry";\r
+       /** The Ant reference to the <code>TreePath</code> of the current project */\r
+       public static String REF_PROJECT_PATH = "slcProjectPath";\r
+       /**\r
+        * Resource path to the property file listing the SLC specific Ant tasks:\r
+        * /org/argeo/slc/ant/taskdefs.properties\r
+        */\r
+       private static String SLC_TASKDEFS_RESOURCE_PATH = "/org/argeo/slc/ant/taskdefs.properties";\r
+       private static String SLC_TYPEDEFS_RESOURCE_PATH = "/org/argeo/slc/ant/typedefs.properties";\r
+\r
+       protected SlcAntConfig slcAntConfig = null;\r
+\r
+       @Override\r
+       public void parse(Project project, Object source) throws BuildException {\r
+\r
+               if (source instanceof File) {\r
+                       File sourceFile = (File) source;\r
+                       // Reset basedir property, in order to avoid base dir override when\r
+                       // running in Maven\r
+                       project.setProperty("basedir", sourceFile.getParentFile()\r
+                                       .getAbsolutePath());\r
+               }\r
+\r
+               if (slcAntConfig != null) {\r
+                       // Config already initialized (probably import), only parse\r
+                       super.parse(project, source);\r
+                       return;\r
+               }\r
+\r
+               // Initialize config\r
+               slcAntConfig = new SlcAntConfig();\r
+\r
+               if (!slcAntConfig.initProject(project)) {\r
+                       // not SLC compatible, do normal Ant\r
+                       super.parse(project, source);\r
+                       return;\r
+               }\r
+\r
+               if (log == null) {\r
+                       // log4j is initialized only now\r
+                       log = LogFactory.getLog(SlcProjectHelper.class);\r
+               }\r
+\r
+               if (log.isDebugEnabled())\r
+                       log.debug("SLC properties are set, starting initialization for "\r
+                                       + source + " (projectHelper=" + this + ")");\r
+\r
+               beforeParsing(project);\r
+\r
+               // Calls the underlying implementation to do the actual work\r
+               super.parse(project, source);\r
+\r
+               afterParsing(project);\r
+       }\r
+\r
+       /**\r
+        * Performs operations after config initialization and before Ant file\r
+        * parsing. Performed only once when the main project file is parsed. Should\r
+        * be called by overriding methods.\r
+        */\r
+       protected void beforeParsing(Project project) {\r
+               // Init Spring application context\r
+               initSpringContext(project);\r
+\r
+               // Init structure registry\r
+               DefaultSRegistry registry = new DefaultSRegistry();\r
+               project.addReference(REF_STRUCTURE_REGISTRY, registry);\r
+       }\r
+\r
+       /**\r
+        * Performs operations after parsing of the main file. Called only once (not\r
+        * for imports).\r
+        */\r
+       protected void afterParsing(Project project) {\r
+               // Creates structure root\r
+               registerProjectAndParents(project, slcAntConfig);\r
+               addCustomTaskAndTypes(project);\r
+       }\r
+\r
+       /** Creates the tree-based structure for this project. */\r
+       private void registerProjectAndParents(Project project,\r
+                       SlcAntConfig slcAntConfig) {\r
+               StructureRegistry<TreeSPath> registry = (StructureRegistry<TreeSPath>) project\r
+                               .getReference(REF_STRUCTURE_REGISTRY);\r
+               File rootDir = new File(project\r
+                               .getUserProperty(SlcAntConfig.ROOT_DIR_PROPERTY))\r
+                               .getAbsoluteFile();\r
+               File baseDir = project.getBaseDir().getAbsoluteFile();\r
+               List<File> dirs = new Vector<File>();\r
+               File currentDir = baseDir;\r
+               do {\r
+                       dirs.add(currentDir);\r
+                       currentDir = currentDir.getParentFile();\r
+                       if (log.isTraceEnabled())\r
+                               log.trace("List " + currentDir);\r
+               } while (!currentDir.equals(rootDir.getParentFile()));\r
+\r
+               // first path is root dir (because of previous algorithm)\r
+               TreeSPath currPath = TreeSPath.createRootPath(rootDir.getName());\r
+               for (int i = dirs.size() - 1; i >= 0; i--) {\r
+                       File dir = dirs.get(i);\r
+\r
+                       // retrieves description for this path\r
+                       final String description;\r
+                       if (i == 0) {// project itself\r
+                               description = project.getDescription() != null\r
+                                               && !project.getDescription().equals("") ? project\r
+                                               .getDescription() : project.getName() != null ? project\r
+                                               .getName() : slcAntConfig.getDescriptionForDir(dir);\r
+                       } else {\r
+                               description = slcAntConfig.getDescriptionForDir(dir);\r
+                               if (log.isTraceEnabled())\r
+                                       log.trace("Dir desc " + i + "/" + dirs.size() + ": "\r
+                                                       + description);\r
+                       }\r
+                       SimpleSElement element = new SimpleSElement(description);\r
+\r
+                       // creates and register path\r
+                       if (!dir.equals(rootDir)) {// already set\r
+                               currPath = currPath.createChild(dir.getName());\r
+                       }\r
+                       registry.register(currPath, element);\r
+               }\r
+               project.addReference(REF_PROJECT_PATH, currPath);\r
+       }\r
+\r
+       /** Gets the path of a project (root). */\r
+       // private static TreeSPath getProjectPath(Project project) {\r
+       // return (TreeSPath) project.getReference(REF_PROJECT_PATH);\r
+       // }\r
+       /** Initializes the Spring application context. */\r
+       private void initSpringContext(Project project) {\r
+               System.getProperties().putAll((Map<?, ?>) project.getProperties());\r
+               String acPath = project\r
+                               .getUserProperty(SlcAntConfig.APPLICATION_CONTEXT_PROPERTY);\r
+               if (log.isDebugEnabled())\r
+                       log.debug("Loading Spring application context from " + acPath);\r
+               // FIXME: workaround to the removal of leading '/' by Spring\r
+               // use URL instead?\r
+               AbstractApplicationContext context = new FileSystemXmlApplicationContext(\r
+                               '/' + acPath);\r
+               context.registerShutdownHook();\r
+               project.addReference(REF_ROOT_CONTEXT, context);\r
+\r
+               createAndRegisterSlcExecution(project);\r
+               // Add build listeners declared in Spring context\r
+               // Map<String, BuildListener> listeners = context.getBeansOfType(\r
+               // BuildListener.class, false, true);\r
+               // for (BuildListener listener : listeners.values()) {\r
+               // project.addBuildListener(listener);\r
+               // }\r
+       }\r
+\r
+       /** Loads the SLC specific Ant tasks. */\r
+       protected static void addCustomTaskAndTypes(Project project) {\r
+               Properties taskdefs = getDefs(project, SLC_TASKDEFS_RESOURCE_PATH);\r
+               for (Object o : taskdefs.keySet()) {\r
+                       String name = o.toString();\r
+                       try {\r
+                               project.addTaskDefinition(name, Class.forName(taskdefs\r
+                                               .getProperty(name)));\r
+                       } catch (ClassNotFoundException e) {\r
+                               log.error("Unknown class for task " + name, e);\r
+                       }\r
+               }\r
+               Properties typedefs = getDefs(project, SLC_TYPEDEFS_RESOURCE_PATH);\r
+               for (Object o : typedefs.keySet()) {\r
+                       String name = o.toString();\r
+                       try {\r
+                               project.addDataTypeDefinition(name, Class.forName(typedefs\r
+                                               .getProperty(name)));\r
+                       } catch (ClassNotFoundException e) {\r
+                               log.error("Unknown class for type " + name, e);\r
+                       }\r
+               }\r
+       }\r
+\r
+       private static Properties getDefs(Project project, String path) {\r
+               Properties defs = new Properties();\r
+               try {\r
+                       InputStream in = project.getClass().getResourceAsStream(path);\r
+                       defs.load(in);\r
+                       in.close();\r
+               } catch (IOException e) {\r
+                       throw new SlcAntException("Cannot load task definitions", e);\r
+               }\r
+               return defs;\r
+       }\r
+\r
+       protected static void createAndRegisterSlcExecution(Project project) {\r
+               SlcExecution slcExecution = new SlcExecution();\r
+               slcExecution.setUuid(UUID.randomUUID().toString());\r
+               try {\r
+                       slcExecution.setHost(InetAddress.getLocalHost().getHostName());\r
+               } catch (UnknownHostException e) {\r
+                       slcExecution.setHost(SlcExecution.UNKOWN_HOST);\r
+               }\r
+\r
+               if (project.getReference(SlcProjectHelper.REF_ROOT_CONTEXT) != null) {\r
+                       slcExecution.setType(SlcExecutionBuildListener.SLC_ANT_TYPE);\r
+               } else {\r
+                       slcExecution.setType(SlcExecutionBuildListener.ANT_TYPE);\r
+               }\r
+\r
+               slcExecution.setUser(System.getProperty("user.name"));\r
+               slcExecution.setStatus(SlcExecution.STATUS_RUNNING);\r
+               slcExecution.getAttributes().put("ant.file",\r
+                               project.getProperty("ant.file"));\r
+\r
+               project.addReference(SlcExecutionBuildListener.REF_SLC_EXECUTION,\r
+                               slcExecution);\r
+\r
+               // Add build listeners declared in Spring context\r
+               Map<String, ProjectRelatedBuildListener> listeners = ((ListableBeanFactory) project\r
+                               .getReference(REF_ROOT_CONTEXT)).getBeansOfType(\r
+                               ProjectRelatedBuildListener.class, false, true);\r
+               for (ProjectRelatedBuildListener listener : listeners.values()) {\r
+                       listener.init(project);\r
+                       project.addBuildListener(listener);\r
+               }\r
+\r
+       }\r
+}\r