| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * 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.android.ide.common.blame; |
| |
| import com.google.common.base.Strings; |
| import com.google.gson.TypeAdapter; |
| import com.google.gson.stream.JsonReader; |
| import com.google.gson.stream.JsonWriter; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| /** |
| * JsonSerializer and Deserializer for {@link SourceFile}. |
| * |
| * The JsonDeserialiser accepts either a string of the file path or a json object of the form |
| * <pre>{ |
| * "path":"/path/to/file.java", |
| * "description": "short human-readable description" |
| * }</pre> where both |
| * properties are optionally present, so unknown is represented by the empty object. |
| */ |
| public class SourceFileJsonTypeAdapter extends TypeAdapter<SourceFile> { |
| |
| private static final String PATH = "path"; |
| |
| private static final String DESCRIPTION = "description"; |
| |
| @Override |
| public void write(JsonWriter out, SourceFile src) throws IOException { |
| File file = src.getSourceFile(); |
| String description = src.getDescription(); |
| |
| if (description == null && file != null) { |
| out.value(file.getAbsolutePath()); |
| return; |
| } |
| |
| out.beginObject(); |
| if (description != null) { |
| out.name(DESCRIPTION).value(description); |
| } |
| if (file != null) { |
| out.name(PATH).value(file.getAbsolutePath()); |
| } |
| out.endObject(); |
| } |
| |
| @Override |
| public SourceFile read(JsonReader in) throws IOException { |
| switch (in.peek()) { |
| case BEGIN_OBJECT: |
| in.beginObject(); |
| String filePath = null; |
| String description = null; |
| while (in.hasNext()) { |
| String name = in.nextName(); |
| if (name.equals(PATH)) { |
| filePath = in.nextString(); |
| } else if (DESCRIPTION.equals(name)) { |
| description = in.nextString(); |
| } else { |
| in.skipValue(); |
| } |
| } |
| in.endObject(); |
| if (!Strings.isNullOrEmpty(filePath)) { |
| File file = new File(filePath); |
| if (!Strings.isNullOrEmpty(description)) { |
| return new SourceFile(file, description); |
| } else { |
| return new SourceFile(file); |
| } |
| } else { |
| if (!Strings.isNullOrEmpty(description)) { |
| return new SourceFile(description); |
| } else { |
| return SourceFile.UNKNOWN; |
| } |
| } |
| case STRING: |
| String fileName = in.nextString(); |
| if (Strings.isNullOrEmpty(fileName)) { |
| return SourceFile.UNKNOWN; |
| } |
| return new SourceFile(new File(fileName)); |
| default: |
| return SourceFile.UNKNOWN; |
| } |
| |
| } |
| } |