org.immutables.value.processor.OkJsons.java Source code

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Here is the source code for org.immutables.value.processor.OkJsons.java

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/*
Copyright 2015 Immutables Authors and Contributors
    
   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 org.immutables.value.processor;

import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMultimap;
import com.google.common.collect.Multimap;
import java.util.Collection;
import java.util.List;
import java.util.Map.Entry;
import org.immutables.generator.Generator;
import org.immutables.value.Value;
import org.immutables.value.processor.meta.Proto.AbstractDeclaring;
import org.immutables.value.processor.meta.Proto.DeclaringType;
import org.immutables.value.processor.meta.Proto.Protoclass;
import org.immutables.value.processor.meta.ValueAttribute;
import org.immutables.value.processor.meta.ValueType;

@Generator.Template
abstract class OkJsons extends ValuesTemplate {

    @Value.Immutable
    public interface OkTypeAdapterTypes {
        AbstractDeclaring definedBy();

        List<ValueType> types();
    }

    public Iterable<OkTypeAdapterTypes> typeAdapters() {
        Multimap<AbstractDeclaring, ValueType> byDeclaring = HashMultimap.create();
        for (ValueType value : values().values()) {
            Protoclass protoclass = value.constitution.protoclass();
            if (protoclass.kind().isValue()) {
                Optional<AbstractDeclaring> typeAdaptersProvider = protoclass.okTypeAdaptersProvider();
                if (typeAdaptersProvider.isPresent()) {
                    byDeclaring.put(typeAdaptersProvider.get(), value);
                } else if (protoclass.okJsonTypeAdapters().isPresent() && protoclass.declaringType().isPresent()) {
                    DeclaringType topLevel = protoclass.declaringType().get().associatedTopLevel();
                    byDeclaring.put(topLevel, value);
                }
            }
        }

        ImmutableList.Builder<OkTypeAdapterTypes> builder = ImmutableList.builder();
        for (Entry<AbstractDeclaring, Collection<ValueType>> entry : byDeclaring.asMap().entrySet()) {
            builder.add(ImmutableOkTypeAdapterTypes.builder().definedBy(entry.getKey())
                    .addAllTypes(entry.getValue()).build());
        }

        return builder.build();
    }

    @Generator.Typedef
    Multimap<Character, ValueAttribute> Mm;

    public final Function<Iterable<ValueAttribute>, Multimap<Character, ValueAttribute>> byFirstCharacter = new Function<Iterable<ValueAttribute>, Multimap<Character, ValueAttribute>>() {
        @Override
        public Multimap<Character, ValueAttribute> apply(Iterable<ValueAttribute> attributes) {
            ImmutableMultimap.Builder<Character, ValueAttribute> builder = ImmutableMultimap.builder();

            for (ValueAttribute attribute : attributes) {
                String name = attribute.getMarshaledName();
                char firstChar = name.charAt(0);

                builder.put(firstChar, attribute);
            }

            return builder.build();
        }
    };
}