com.bendb.thrifty.schema.Schema Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of thrifty-schema Show documentation
A simple Thrift IDL parser and validator
There is a newer version: 3.1.0
/*
 * Copyright (C) 2015-2016 Benjamin Bader
 *
 * 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.bendb.thrifty.schema;

import com.google.common.collect.ImmutableList;

import java.util.NoSuchElementException;

/**
 * Encapsulates all types, values, and services defined in a set of Thrift
 * files.
 *
 * Strictly speaking, this is a lossy representation - the original filesystem
 * structure of the source Programs is not preserved.  As such, this isn't a
 * suitable representation from which to generate C++ code, or any other
 * module-based language for the matter.  But as we're only concerned with Java
 * here, it's perfectly convenient.
 */
public class Schema {
    private final ImmutableList structs;
    private final ImmutableList unions;
    private final ImmutableList exceptions;
    private final ImmutableList enums;
    private final ImmutableList constants;
    private final ImmutableList typedefs;
    private final ImmutableList services;

    Schema(Iterable programs) {
        ImmutableList.Builder structs    = ImmutableList.builder();
        ImmutableList.Builder unions     = ImmutableList.builder();
        ImmutableList.Builder exceptions = ImmutableList.builder();
        ImmutableList.Builder   enums      = ImmutableList.builder();
        ImmutableList.Builder   constants  = ImmutableList.builder();
        ImmutableList.Builder    typedefs   = ImmutableList.builder();
        ImmutableList.Builder    services   = ImmutableList.builder();

        for (Program program : programs) {
            structs.addAll(program.structs());
            unions.addAll(program.unions());
            exceptions.addAll(program.exceptions());
            enums.addAll(program.enums());
            constants.addAll(program.constants());
            typedefs.addAll(program.typedefs());
            services.addAll(program.services());
        }

        this.structs = structs.build();
        this.unions = unions.build();
        this.exceptions = exceptions.build();
        this.enums = enums.build();
        this.constants = constants.build();
        this.typedefs = typedefs.build();
        this.services = services.build();
    }

    public ImmutableList structs() {
        return structs;
    }

    public ImmutableList unions() {
        return unions;
    }

    public ImmutableList exceptions() {
        return exceptions;
    }

    public ImmutableList enums() {
        return enums;
    }

    public ImmutableList constants() {
        return constants;
    }

    public ImmutableList typedefs() {
        return typedefs;
    }

    public ImmutableList services() {
        return services;
    }

    public EnumType findEnumByType(ThriftType type) {
        for (EnumType enumType : enums) {
            if (enumType.type().equals(type)) {
                return enumType;
            }
        }
        throw new NoSuchElementException("No enum type matching " + type.name());
    }
}