net.n2oapp.framework.config.compile.pipeline.N2oPipeline Maven / Gradle / Ivy

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package net.n2oapp.framework.config.compile.pipeline;

import net.n2oapp.criteria.dataset.DataSet;
import net.n2oapp.framework.api.MetadataEnvironment;
import net.n2oapp.framework.api.metadata.compile.BindProcessor;
import net.n2oapp.framework.api.metadata.compile.CompileContext;
import net.n2oapp.framework.api.metadata.compile.CompileProcessor;
import net.n2oapp.framework.api.metadata.pipeline.*;
import net.n2oapp.framework.api.metadata.compile.SourceProcessor;
import net.n2oapp.framework.api.util.SubModelsProcessor;
import net.n2oapp.framework.config.metadata.compile.N2oCompileProcessor;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * Конвейер для работы с метаданными N2O
 */
public abstract class N2oPipeline implements Pipeline {

    private MetadataEnvironment env;
    protected List> operations = new ArrayList<>();

    protected N2oPipeline(MetadataEnvironment env) {
        this.env = env;
    }

    protected void pullOp(PipelineOperationType type) {
        pullOp(env.getPipelineOperationFactory().produce(type));
    }

    protected void pullOp(PipelineOperation op) {
        operations.add(0, op);
    }

    protected Iterator> ops() {
        return operations.iterator();
    }

    protected  O execute(CompileContext context,
                               DataSet data,
                               I input) {
        return execute(context, data, input, null);
    }
    protected  O execute(CompileContext context,
                               DataSet data,
                               I input,
                               Object[] scopes) {
        BindProcessor bindProcessor = new N2oCompileProcessor(env, context, data, null, scopes);
        N2oCompileProcessor processor = new N2oCompileProcessor(env, context, data, scopes);
        return execute(ops(), context, data, input, processor, bindProcessor, processor);
    }


    protected  O execute(CompileContext context,
                               DataSet data,
                               I input,
                               SubModelsProcessor subModelsProcessor,
                               Object[] scopes) {
        BindProcessor bindProcessor = new N2oCompileProcessor(env, context, data, subModelsProcessor, scopes);
        N2oCompileProcessor processor = new N2oCompileProcessor(env, context, data, scopes);
        return execute(ops(), context, data, input, processor, bindProcessor, processor);
    }

    protected  O execute(CompileContext context,
                               DataSet data,
                               I input,
                               CompileProcessor compileProcessor,
                               BindProcessor bindProcessor,
                               SourceProcessor sourceProcessor) {
        return execute(ops(), context, data, input, compileProcessor, bindProcessor, sourceProcessor);
    }

    protected  O execute(Iterator> iterator,
                               CompileContext context,
                               DataSet data, I input,
                               CompileProcessor compileProcessor,
                               BindProcessor bindProcessor,
                               SourceProcessor sourceProcessor) {
        PipelineOperation operation = (PipelineOperation) iterator.next();
        if (iterator.hasNext()) {
            return operation.execute(context, data, () -> execute(iterator, context, data, input, compileProcessor, bindProcessor, sourceProcessor),
                    compileProcessor, bindProcessor, sourceProcessor);
        } else {
            return operation.execute(context, data, () -> input, compileProcessor, bindProcessor, sourceProcessor);
        }
    }
}