org.eclipse.lsp4j.adapters.DocumentSymbolResponseAdapter.java Source code

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Here is the source code for org.eclipse.lsp4j.adapters.DocumentSymbolResponseAdapter.java

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/******************************************************************************
 * 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 java.util.ArrayList;

import org.eclipse.lsp4j.DocumentSymbol;
import org.eclipse.lsp4j.SymbolInformation;
import org.eclipse.lsp4j.jsonrpc.json.adapters.CollectionTypeAdapter;
import org.eclipse.lsp4j.jsonrpc.json.adapters.EitherTypeAdapter;
import org.eclipse.lsp4j.jsonrpc.json.adapters.EitherTypeAdapter.PropertyChecker;
import org.eclipse.lsp4j.jsonrpc.messages.Either;

import com.google.gson.Gson;
import com.google.gson.TypeAdapter;
import com.google.gson.TypeAdapterFactory;
import com.google.gson.reflect.TypeToken;

public class DocumentSymbolResponseAdapter implements TypeAdapterFactory {

    private static final TypeToken<Either<SymbolInformation, DocumentSymbol>> ELEMENT_TYPE = new TypeToken<Either<SymbolInformation, DocumentSymbol>>() {
    };

    @SuppressWarnings("unchecked")
    @Override
    public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
        PropertyChecker leftChecker = new PropertyChecker("location");
        PropertyChecker rightChecker = new PropertyChecker("range");
        TypeAdapter<Either<SymbolInformation, DocumentSymbol>> elementTypeAdapter = new EitherTypeAdapter<>(gson,
                ELEMENT_TYPE, leftChecker, rightChecker);
        return (TypeAdapter<T>) new CollectionTypeAdapter<>(gson, ELEMENT_TYPE.getType(), elementTypeAdapter,
                ArrayList::new);
    }

}