| /* |
| * Copyright 2011 Google Inc. |
| * |
| * 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.google.gwt.dev.codeserver; |
| |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.dev.json.JsonArray; |
| import com.google.gwt.dev.json.JsonObject; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FilenameFilter; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URL; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| /** |
| * Contains everything that the code server knows about a GWT app (module), including how |
| * to recompile it and where the compiler output is. |
| */ |
| class ModuleState { |
| private final AtomicReference<CompileDir> current = new AtomicReference<CompileDir>(); |
| private final Recompiler recompiler; |
| private final TreeLogger logger; |
| |
| ModuleState(Recompiler recompiler, TreeLogger logger, boolean noPrecompile) |
| throws UnableToCompleteException { |
| this.recompiler = recompiler; |
| this.logger = logger; |
| |
| CompileDir compileDir; |
| if (noPrecompile) { |
| compileDir = recompiler.noCompile(); |
| } else { |
| Map<String, String> defaultProps = new HashMap<String, String>(); |
| defaultProps.put("user.agent", "safari"); |
| defaultProps.put("locale", "en"); |
| defaultProps.put("compiler.useSourceMaps", "true"); |
| compileDir = recompiler.compile(defaultProps); |
| } |
| current.set(compileDir); |
| } |
| |
| /** |
| * Recompiles the module with the given binding properties. If successful, this changes the |
| * location of the output directory. (The log file changes both on success and on failure. |
| * |
| * @param bindingProperties The properties used to compile. (Chooses the permutation.) |
| * @return true if the compile finished successfully. |
| */ |
| boolean recompile(Map<String, String> bindingProperties) { |
| try { |
| current.set(recompiler.compile(bindingProperties)); |
| return true; |
| } catch (UnableToCompleteException e) { |
| logger.log(TreeLogger.Type.WARN, "continuing to serve previous version"); |
| return false; |
| } |
| } |
| |
| /** |
| * Returns the name of this module (after renaming). |
| */ |
| String getModuleName() { |
| return recompiler.getModuleName(); |
| } |
| |
| /** |
| * Returns the source map file from the most recent recompile. |
| * @throws RuntimeException if unable |
| */ |
| File findSourceMap() { |
| String moduleName = recompiler.getModuleName(); |
| File symbolMapsDir = current.get().findSymbolMapDir(moduleName); |
| if (symbolMapsDir == null) { |
| throw new RuntimeException("Can't find symbolMaps dir for " + moduleName); |
| } |
| |
| File[] sourceMapFiles = symbolMapsDir.listFiles(new FilenameFilter() { |
| @Override |
| public boolean accept(File dir, String name) { |
| return name.matches(".*_sourceMap0.json"); |
| } |
| }); |
| |
| if (sourceMapFiles == null) { |
| throw new RuntimeException("Can't list contents of symbolMaps dir: " + symbolMapsDir); |
| } |
| |
| if (sourceMapFiles.length > 1) { |
| throw new RuntimeException("Multiple fragment 0 sourcemaps found. Too many permutations."); |
| } |
| |
| if (sourceMapFiles.length == 0) { |
| throw new RuntimeException("No sourcemaps found. Not enabled?"); |
| } |
| |
| return new File(symbolMapsDir, sourceMapFiles[0].getName()); |
| } |
| |
| /** |
| * Finds a source file (or other resource) that's either in this module's source path, or |
| * is a generated file. |
| * @param path location of the file relative to its directory in the classpath, or (if |
| * it starts with "gen/"), a generated file. |
| * @return bytes in the file, or null if there's no such source file. |
| */ |
| InputStream openSourceFile(String path) throws IOException { |
| |
| if (path.startsWith("gen/")) { |
| // generated file? |
| String rest = path.substring("gen/".length()); |
| File fileInGenDir = new File(getGenDir(), rest); |
| if (!fileInGenDir.isFile()) { |
| return null; |
| } |
| return new BufferedInputStream(new FileInputStream(fileInGenDir)); |
| } else { |
| // regular source file? |
| URL resource = recompiler.getResourceLoader().getResource(path); |
| if (resource == null) { |
| return null; |
| } |
| return resource.openStream(); |
| } |
| } |
| |
| /** |
| * Returns the location of a file in the compiler's output directory from the |
| * last time this module was recompiled. The location will change after a successful |
| * recompile. |
| * @param urlPath The path to the file. This should be a relative path beginning |
| * with the module name (after renaming). |
| * @return The location of the file, which might not actually exist. |
| */ |
| File getOutputFile(String urlPath) { |
| return new File(current.get().getWarDir(), urlPath); |
| } |
| |
| /** |
| * Returns the log file from the last time this module was recompiled. This changes |
| * after every call to {@link #recompile}. |
| */ |
| File getCompileLog() { |
| return recompiler.getLastLog(); |
| } |
| |
| File getGenDir() { |
| return current.get().getGenDir(); |
| } |
| |
| File getWarDir() { |
| return current.get().getWarDir(); |
| } |
| |
| /** |
| * Returns a file out of the "extras" directory. |
| * @param path relative path of the file, not including the module name. |
| * @return The location of the file, which might not actually exist. |
| */ |
| File getExtraFile(String path) { |
| File prefix = new File(current.get().getExtraDir(), getModuleName()); |
| return new File(prefix, path); |
| } |
| |
| JsonObject getTemplateVariables() { |
| JsonObject result = new JsonObject(); |
| result.put("moduleName", getModuleName()); |
| result.put("files", listModuleFiles()); |
| return result; |
| } |
| |
| private JsonArray listModuleFiles() { |
| File[] files = new File(getWarDir(), getModuleName()).listFiles(); |
| if (files == null) { |
| return new JsonArray(); |
| } |
| Arrays.sort(files); |
| |
| JsonArray result = new JsonArray(); |
| for (File file : files) { |
| if (file.isFile()) { |
| JsonObject map = new JsonObject(); |
| map.put("name", file.getName()); |
| map.put("link", file.getName()); |
| result.add(map); |
| } |
| } |
| return result; |
| } |
| } |