com.netflix.hollow.api.codegen.delegate.HollowObjectDelegateCachedImplGenerator Maven / Gradle / Ivy

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/*
 *  Copyright 2016-2019 Netflix, Inc.
 *
 *     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.netflix.hollow.api.codegen.delegate;

import static com.netflix.hollow.api.codegen.HollowCodeGenerationUtils.delegateCachedImplName;
import static com.netflix.hollow.api.codegen.HollowCodeGenerationUtils.delegateInterfaceName;
import static com.netflix.hollow.api.codegen.HollowCodeGenerationUtils.substituteInvalidChars;
import static com.netflix.hollow.api.codegen.HollowCodeGenerationUtils.typeAPIClassname;
import static com.netflix.hollow.api.codegen.HollowCodeGenerationUtils.uppercase;

import com.netflix.hollow.api.codegen.CodeGeneratorConfig;
import com.netflix.hollow.api.codegen.HollowAPIGenerator;
import com.netflix.hollow.api.codegen.HollowCodeGenerationUtils;
import com.netflix.hollow.api.codegen.HollowErgonomicAPIShortcuts;
import com.netflix.hollow.api.codegen.HollowErgonomicAPIShortcuts.Shortcut;
import com.netflix.hollow.api.custom.HollowAPI;
import com.netflix.hollow.api.custom.HollowTypeAPI;
import com.netflix.hollow.api.objects.delegate.HollowCachedDelegate;
import com.netflix.hollow.api.objects.delegate.HollowObjectAbstractDelegate;
import com.netflix.hollow.core.HollowDataset;
import com.netflix.hollow.core.read.dataaccess.HollowObjectTypeDataAccess;
import com.netflix.hollow.core.schema.HollowObjectSchema;
import com.netflix.hollow.core.schema.HollowObjectSchema.FieldType;

/**
 * This class contains template logic for generating a {@link HollowAPI} implementation.  Not intended for external consumption.
 *
 * @see HollowAPIGenerator
 */
public class HollowObjectDelegateCachedImplGenerator extends HollowObjectDelegateGenerator {

    public HollowObjectDelegateCachedImplGenerator(String packageName, HollowObjectSchema schema,
            HollowErgonomicAPIShortcuts ergonomicShortcuts, HollowDataset dataset, CodeGeneratorConfig config) {
        super(packageName, schema, ergonomicShortcuts, dataset, config);
        this.className = delegateCachedImplName(schema.getName());
    }

    @Override
    public String generate() {
        StringBuilder builder = new StringBuilder();
        appendPackageAndCommonImports(builder);

        builder.append("import ").append(HollowObjectAbstractDelegate.class.getName()).append(";\n");
        builder.append("import ").append(HollowObjectTypeDataAccess.class.getName()).append(";\n");
        builder.append("import ").append(HollowObjectSchema.class.getName()).append(";\n");
        builder.append("import ").append(HollowTypeAPI.class.getName()).append(";\n");
        builder.append("import ").append(HollowCachedDelegate.class.getName()).append(";\n");

        appendGeneratedAnnotation(builder);
        builder.append("\n@SuppressWarnings(\"all\")\n");
        builder.append("public class ").append(className).append(" extends HollowObjectAbstractDelegate implements HollowCachedDelegate, ").append(delegateInterfaceName(schema.getName())).append(" {\n\n");

        for(int i=0;i