CEnumDescriptor.java

/*
 * Copyright 2016 Providence Authors
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 net.morimekta.providence.reflect.contained;

import net.morimekta.providence.PEnumBuilder;
import net.morimekta.providence.descriptor.PEnumDescriptor;
import net.morimekta.util.collect.UnmodifiableMap;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Supplier;

import static net.morimekta.util.collect.UnmodifiableMap.mapOf;

/**
 * Contained enum descriptor type.
 * <p>
 * Also see {@link CEnumValue}.
 */
public class CEnumDescriptor extends PEnumDescriptor<CEnumValue> implements CAnnotatedDescriptor {
    @Nonnull  private       CEnumValue[]        values;
    @Nonnull  private final Map<String, String> annotations;
    @Nullable private final String              comment;
    private final boolean                       innerType;
    private final boolean                       autoType;

    public CEnumDescriptor(@Nullable String comment,
                           @Nonnull String packageName,
                           @Nonnull String name,
                           @Nullable Map<String, String> annotations) {
        super(packageName, name, new _Factory());

        this.innerType = name.contains(".");
        // TODO: Make better detection of auto-types. Currently only service RQ / RS.
        this.autoType = innerType && name.indexOf(".") != name.lastIndexOf(".");

        this.values = new CEnumValue[0];
        this.comment = comment;
        this.annotations = annotations == null ? mapOf() : UnmodifiableMap.copyOf(annotations);
        ((_Factory) getBuilderSupplier()).setType(this);
    }

    @Override
    public boolean isInnerType() {
        return innerType;
    }

    @Override
    public boolean isAutoType() {
        return autoType;
    }

    public void setValues(@Nonnull List<CEnumValue> values) {
        this.values = new CEnumValue[values.size()];
        Iterator<CEnumValue> iter = values.iterator();
        for (int i = 0; i < this.values.length; ++i) {
            this.values[i] = iter.next();
        }
    }

    @Override
    public final String getDocumentation() {
        return comment;
    }

    @Nonnull
    @Override
    public CEnumValue[] getValues() {
        return Arrays.copyOf(values, values.length);
    }

    @Override
    @Nullable
    public CEnumValue findById(int id) {
        for (CEnumValue value : getValues()) {
            if (value.asInteger() == id) {
                return value;
            }
        }
        return null;
    }

    @Override
    @Nullable
    public CEnumValue findByName(String name) {
        for (CEnumValue value : getValues()) {
            if (value.asString().equals(name)) {
                return value;
            }
        }
        return null;
    }

    @Nullable
    @Override
    public CEnumValue findByPojoName(String name) {
        for (CEnumValue value : getValues()) {
            if (value.asString().equals(name)) {
                return value;
            }
            if (value.getPojoName().equals(name)) {
                return value;
            }
        }
        return null;
    }

    @Nonnull
    @Override
    @SuppressWarnings("unchecked")
    public Set<String> getAnnotations() {
        return annotations.keySet();
    }

    @Override
    public boolean hasAnnotation(@Nonnull String name) {
        return annotations.containsKey(name);
    }

    @Override
    public String getAnnotationValue(@Nonnull String name) {
        return annotations.get(name);
    }

    private static class _Factory implements Supplier<PEnumBuilder<CEnumValue>> {
        private CEnumDescriptor mType;

        public void setType(CEnumDescriptor type) {
            mType = type;
        }

        @Nonnull
        @Override
        public PEnumBuilder<CEnumValue> get() {
            return new CEnumValue.Builder(mType);
        }
    }
}