com.epam.deltix.qsrv.hf.codec.cg.CGContext Maven / Gradle / Ivy

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/*
 * Copyright 2021 EPAM Systems, Inc
 *
 * See the NOTICE file distributed with this work for additional information
 * regarding copyright ownership. 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.epam.deltix.qsrv.hf.codec.cg;

import java.util.*;

import com.epam.deltix.qsrv.hf.codec.ClassCodecFactory.Type;
import com.epam.deltix.qsrv.hf.codec.CompilationUnit;
import com.epam.deltix.qsrv.hf.pub.TypeLoader;
import com.epam.deltix.qsrv.hf.pub.md.RecordClassDescriptor;
import com.epam.deltix.util.jcg.JClass;
import com.epam.deltix.util.lang.JavaCompilerHelper.SpecialClassLoader;

/**
 *
 */
public class CGContext {

    QVariableContainerLookup lookupContainer;
    final TypeLoader            typeLoader;
    final SpecialClassLoader    classLoader;

    ArrayList        dependencies = new ArrayList<>();
    Map    cache = new HashMap<>();

    public CGContext(TypeLoader typeLoader, SpecialClassLoader classLoader) {
        this.typeLoader = typeLoader;
        this.classLoader = classLoader;
    }

    public void addDependencies(CompilationUnit[] dependencies) {
        if (dependencies != null)
            this.dependencies.addAll(Arrays.asList(dependencies));
    }

    CompilationUnit lookup(RecordClassDescriptor cd, Type type) {
        return cache.get(new CodecKey(cd, type));
    }

    public void addCodec(CompilationUnit codec, RecordClassDescriptor cd, Type type) {
        dependencies.add(codec);
        cache.put(new CodecKey(cd, type), codec);
    }

    private static class CodecKey {
        private final RecordClassDescriptor     cd;
        private final Type                      type;

        private CodecKey(RecordClassDescriptor cd, Type type) {
            this.cd = cd;
            this.type = type;
        }

        @Override
        public boolean equals(Object obj) {
            if (obj == null || getClass() != obj.getClass())
                return false;

            final CodecKey other = (CodecKey) obj;

            return (this.cd.equals(other.cd) && (this.type == other.type));
        }

        @Override
        public int hashCode() {
            return (cd.hashCode() + 59 * type.hashCode());
        }

        @Override
        public String toString() {
            return (cd.getName() + "#" + type);
        }
    }
}