| /* |
| * Copyright 2012 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.dev.json.JsonArray; |
| import com.google.gwt.dev.json.JsonException; |
| import com.google.gwt.dev.json.JsonObject; |
| import com.google.gwt.dev.util.Util; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * In-memory representation of a SourceMap. |
| * |
| * @author skybrian@google.com (Brian Slesinsky) |
| */ |
| class SourceMap { |
| private final JsonObject json; |
| |
| /** @see #load */ |
| private SourceMap(JsonObject json) { |
| this.json = json; |
| } |
| |
| static SourceMap load(File file) { |
| String sourceMapJson = Util.readFileAsString(file); |
| |
| JsonObject json; |
| try { |
| json = JsonObject.parse(new StringReader(sourceMapJson)); |
| } catch (JsonException e) { |
| throw new RuntimeException("can't parse sourcemap as json", e); |
| } catch (IOException e) { |
| throw new RuntimeException("can't parse sourcemap as json", e); |
| } |
| |
| return new SourceMap(json); |
| } |
| |
| /** |
| * Adds the given prefix to each source filename in the source map. |
| */ |
| void addPrefixToEachSourceFile(String serverPrefix) { |
| JsonArray sources = (JsonArray) json.get("sources"); |
| JsonArray newSources = new JsonArray(); |
| for (int i = 0; i < sources.getLength(); i++) { |
| String filename = sources.get(i).asString().getString(); |
| newSources.add(serverPrefix + filename); |
| } |
| json.put("sources", newSources); |
| } |
| |
| /** |
| * Returns a sorted list of all the directories containing at least one filename |
| * in the source map. |
| */ |
| List<String> getSourceDirectories() { |
| JsonArray sources = (JsonArray) json.get("sources"); |
| Set<String> directories = new HashSet<String>(); |
| for (int i = 0; i < sources.getLength(); i++) { |
| String filename = sources.get(i).asString().getString(); |
| int lastSlashPos = filename.lastIndexOf('/'); |
| directories.add(lastSlashPos < 0 ? "" : filename.substring(0, lastSlashPos)); |
| } |
| |
| List<String> result = new ArrayList<String>(); |
| result.addAll(directories); |
| Collections.sort(result); |
| return result; |
| } |
| |
| /** |
| * Returns a sorted list of all filenames in the given directory. |
| */ |
| List<String> getSourceFilesInDirectory(String parent) { |
| if (!parent.endsWith("/")) { |
| throw new IllegalArgumentException("unexpected: " + parent); |
| } |
| |
| JsonArray sources = (JsonArray) json.get("sources"); |
| |
| List<String> result = new ArrayList<String>(); |
| for (int i = 0; i < sources.getLength(); i++) { |
| String candidate = sources.get(i).asString().getString(); |
| if (!candidate.startsWith(parent)) { |
| continue; |
| } |
| int nameStart = candidate.lastIndexOf('/') + 1; |
| if (nameStart == parent.length()) { |
| result.add(candidate.substring(nameStart)); |
| } |
| } |
| |
| return result; |
| } |
| |
| String serialize() { |
| StringWriter buffer = new StringWriter(); |
| try { |
| json.write(buffer); |
| } catch (IOException e) { |
| throw new RuntimeException("can't convert sourcemap to json"); |
| } |
| return buffer.toString(); |
| } |
| } |