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relay.js-compatible GraphQL servlet

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/**
 * Copyright 2016 Yurii Rashkovskii
 *
 * 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
 */
package graphql.servlet;

import graphql.schema.GraphQLSchema;

import javax.servlet.http.HttpServletRequest;

/**
 * @author Andrew Potter
 */
public class DefaultGraphQLSchemaProvider implements GraphQLSchemaProvider {

    private final GraphQLSchema schema;
    private final GraphQLSchema readOnlySchema;

    public DefaultGraphQLSchemaProvider(GraphQLSchema schema) {
        this(schema, GraphQLSchemaProvider.copyReadOnly(schema));
    }

    public DefaultGraphQLSchemaProvider(GraphQLSchema schema, GraphQLSchema readOnlySchema) {
        this.schema = schema;
        this.readOnlySchema = readOnlySchema;
    }


    @Override
    public GraphQLSchema getSchema(HttpServletRequest request) {
        return getSchema();
    }

    @Override
    public GraphQLSchema getSchema() {
        return schema;
    }

    @Override
    public GraphQLSchema getReadOnlySchema(HttpServletRequest request) {
        return readOnlySchema;
    }
}