| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed 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. |
| */ |
| |
| package com.maddyhome.idea.copyright.pattern; |
| |
| import com.intellij.openapi.application.PathManager; |
| import com.intellij.openapi.module.Module; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.util.PsiUtilCore; |
| import com.maddyhome.idea.copyright.CopyrightManager; |
| import org.apache.commons.collections.ExtendedProperties; |
| import org.apache.velocity.VelocityContext; |
| import org.apache.velocity.app.VelocityEngine; |
| import org.apache.velocity.runtime.RuntimeConstants; |
| import org.apache.velocity.runtime.log.SimpleLog4JLogSystem; |
| |
| import java.io.StringWriter; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class VelocityHelper |
| { |
| public static String evaluate(PsiFile file, Project project, Module module, String template) |
| { |
| VelocityEngine engine = getEngine(); |
| |
| VelocityContext vc = new VelocityContext(); |
| vc.put("today", new DateInfo()); |
| if (file != null) vc.put("file", new FileInfo(file)); |
| if (project != null) vc.put("project", new ProjectInfo(project)); |
| if (module != null) vc.put("module", new ModuleInfo(module)); |
| vc.put("username", System.getProperty("user.name")); |
| |
| if (file != null) { |
| final VirtualFile virtualFile = PsiUtilCore.getVirtualFile(file); |
| if (virtualFile != null) { |
| final CopyrightVariablesProvider variablesProvider = CopyrightVariablesProviders.INSTANCE.forFileType(virtualFile.getFileType()); |
| if (variablesProvider != null) { |
| final Map<String, Object> context = new HashMap<String, Object>(); |
| variablesProvider.collectVariables(context, project, module, file); |
| for (Map.Entry<String, Object> entry : context.entrySet()) { |
| vc.put(entry.getKey(), entry.getValue()); |
| } |
| } |
| } |
| } |
| |
| |
| try |
| { |
| StringWriter sw = new StringWriter(); |
| boolean stripLineBreak = false; |
| if (template.endsWith("$")) { |
| template += getVelocitySuffix(); |
| stripLineBreak = true; |
| } |
| engine.evaluate(vc, sw, CopyrightManager.class.getName(), template); |
| final String result = sw.getBuffer().toString(); |
| return stripLineBreak ? StringUtil.trimEnd(result, getVelocitySuffix()) : result; |
| } |
| catch (Exception e) |
| { |
| return ""; |
| } |
| } |
| |
| private static String getVelocitySuffix() { |
| return "\n"; |
| } |
| |
| public static void verify(String text) throws Exception |
| { |
| VelocityEngine engine = getEngine(); |
| |
| VelocityContext vc = new VelocityContext(); |
| vc.put("today", new DateInfo()); |
| StringWriter sw = new StringWriter(); |
| if (text.endsWith("$")) { |
| text += getVelocitySuffix(); |
| } |
| engine.evaluate(vc, sw, CopyrightManager.class.getName(), text); |
| } |
| |
| private static synchronized VelocityEngine getEngine() |
| { |
| if (instance == null) |
| { |
| try |
| { |
| VelocityEngine engine = new VelocityEngine(); |
| ExtendedProperties extendedProperties = new ExtendedProperties(); |
| |
| extendedProperties.addProperty(RuntimeConstants.RESOURCE_LOADER, "file"); |
| extendedProperties.addProperty(RuntimeConstants.PARSER_POOL_SIZE, "1"); |
| |
| extendedProperties.addProperty("file.resource.loader.class", "org.apache.velocity.runtime.resource.loader.FileResourceLoader"); |
| extendedProperties.addProperty("file.resource.loader.path", PathManager.getPluginsPath() + "/Copyright/resources"); |
| |
| extendedProperties.addProperty(RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS, |
| SimpleLog4JLogSystem.class.getName()); |
| extendedProperties |
| .addProperty("runtime.log.logsystem.log4j.category", CopyrightManager.class.getName()); |
| |
| engine.setExtendedProperties(extendedProperties); |
| engine.init(); |
| |
| instance = engine; |
| } |
| catch (Exception ignored) |
| { |
| } |
| } |
| |
| return instance; |
| } |
| |
| private VelocityHelper() |
| { |
| } |
| |
| private static VelocityEngine instance; |
| } |