| /** |
| * Copyright (c) 2018 TypeFox and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| package org.eclipse.lsp4j.adapters; |
| |
| import com.google.common.base.Objects; |
| import com.google.gson.Gson; |
| import com.google.gson.JsonElement; |
| import com.google.gson.JsonObject; |
| import com.google.gson.JsonParser; |
| import com.google.gson.TypeAdapter; |
| import com.google.gson.TypeAdapterFactory; |
| import com.google.gson.reflect.TypeToken; |
| import com.google.gson.stream.JsonReader; |
| import com.google.gson.stream.JsonToken; |
| import com.google.gson.stream.JsonWriter; |
| import java.io.IOException; |
| import java.util.List; |
| import org.eclipse.lsp4j.Hover; |
| import org.eclipse.lsp4j.MarkedString; |
| import org.eclipse.lsp4j.MarkupContent; |
| import org.eclipse.lsp4j.Range; |
| import org.eclipse.lsp4j.generator.TypeAdapterImpl; |
| import org.eclipse.lsp4j.jsonrpc.messages.Either; |
| import org.eclipse.xtext.xbase.lib.CollectionLiterals; |
| |
| /** |
| * A type adapter for the Hover protocol type. |
| */ |
| @TypeAdapterImpl(Hover.class) |
| @SuppressWarnings("all") |
| public class HoverTypeAdapter extends TypeAdapter<Hover> { |
| public static class Factory implements TypeAdapterFactory { |
| public <T> TypeAdapter<T> create(final Gson gson, final TypeToken<T> typeToken) { |
| if (!Hover.class.isAssignableFrom(typeToken.getRawType())) { |
| return null; |
| } |
| return (TypeAdapter<T>) new HoverTypeAdapter(gson); |
| } |
| } |
| |
| private static final TypeToken<List<Either<String, MarkedString>>> LIST_STRING_MARKEDSTRING = new TypeToken<List<Either<String, MarkedString>>>() { |
| }; |
| |
| private static final TypeToken<Either<String, MarkedString>> STRING_MARKEDSTRING = new TypeToken<Either<String, MarkedString>>() { |
| }; |
| |
| protected Either<List<Either<String, MarkedString>>, MarkupContent> readContents(final JsonReader in) throws IOException { |
| final JsonToken nextToken = in.peek(); |
| boolean _equals = Objects.equal(nextToken, JsonToken.STRING); |
| if (_equals) { |
| final List<Either<String, MarkedString>> value = CollectionLiterals.<Either<String, MarkedString>>newArrayList(Either.<String, MarkedString>forLeft(in.nextString())); |
| return Either.<List<Either<String, MarkedString>>, MarkupContent>forLeft(value); |
| } else { |
| boolean _equals_1 = Objects.equal(nextToken, JsonToken.BEGIN_ARRAY); |
| if (_equals_1) { |
| final List<Either<String, MarkedString>> value_1 = this.gson.<List<Either<String, MarkedString>>>fromJson(in, HoverTypeAdapter.LIST_STRING_MARKEDSTRING.getType()); |
| return Either.<List<Either<String, MarkedString>>, MarkupContent>forLeft(value_1); |
| } else { |
| JsonElement _parseReader = JsonParser.parseReader(in); |
| final JsonObject object = ((JsonObject) _parseReader); |
| boolean _has = object.has("language"); |
| if (_has) { |
| final List<Either<String, MarkedString>> value_2 = CollectionLiterals.<Either<String, MarkedString>>newArrayList(Either.<String, MarkedString>forRight(this.gson.<MarkedString>fromJson(object, MarkedString.class))); |
| return Either.<List<Either<String, MarkedString>>, MarkupContent>forLeft(value_2); |
| } else { |
| return Either.<List<Either<String, MarkedString>>, MarkupContent>forRight(this.gson.<MarkupContent>fromJson(object, MarkupContent.class)); |
| } |
| } |
| } |
| } |
| |
| protected void writeContents(final JsonWriter out, final Either<List<Either<String, MarkedString>>, MarkupContent> contents) throws IOException { |
| boolean _isLeft = contents.isLeft(); |
| if (_isLeft) { |
| final List<Either<String, MarkedString>> list = contents.getLeft(); |
| int _size = list.size(); |
| boolean _equals = (_size == 1); |
| if (_equals) { |
| this.gson.toJson(list.get(0), HoverTypeAdapter.STRING_MARKEDSTRING.getType(), out); |
| } else { |
| this.gson.toJson(list, HoverTypeAdapter.LIST_STRING_MARKEDSTRING.getType(), out); |
| } |
| } else { |
| this.gson.toJson(contents.getRight(), MarkupContent.class, out); |
| } |
| } |
| |
| private static final TypeToken<Either<List<Either<String, MarkedString>>, MarkupContent>> CONTENTS_TYPE_TOKEN = new TypeToken<Either<List<Either<String, MarkedString>>, MarkupContent>>() {}; |
| |
| private final Gson gson; |
| |
| public HoverTypeAdapter(final Gson gson) { |
| this.gson = gson; |
| } |
| |
| public Hover read(final JsonReader in) throws IOException { |
| JsonToken nextToken = in.peek(); |
| if (nextToken == JsonToken.NULL) { |
| return null; |
| } |
| |
| Hover result = new Hover(); |
| in.beginObject(); |
| while (in.hasNext()) { |
| String name = in.nextName(); |
| switch (name) { |
| case "contents": |
| result.setContents(readContents(in)); |
| break; |
| case "range": |
| result.setRange(readRange(in)); |
| break; |
| default: |
| in.skipValue(); |
| } |
| } |
| in.endObject(); |
| return result; |
| } |
| |
| protected Range readRange(final JsonReader in) throws IOException { |
| return gson.fromJson(in, Range.class); |
| } |
| |
| public void write(final JsonWriter out, final Hover value) throws IOException { |
| if (value == null) { |
| out.nullValue(); |
| return; |
| } |
| |
| out.beginObject(); |
| out.name("contents"); |
| writeContents(out, value.getContents()); |
| out.name("range"); |
| writeRange(out, value.getRange()); |
| out.endObject(); |
| } |
| |
| protected void writeRange(final JsonWriter out, final Range value) throws IOException { |
| gson.toJson(value, Range.class, out); |
| } |
| } |