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package com.devonfw.cobigen.api;

import java.nio.charset.Charset;
import java.nio.file.Path;
import java.util.List;

import com.devonfw.cobigen.api.exception.InputReaderException;
import com.devonfw.cobigen.api.extension.InputReader;

/** The implements operations for reading or processing inputs. */
public interface InputInterpreter {

    /**
     * Checks whether there is at least one input reader, which interprets the given input as combined input.
     * @param input
     *            object
     * @return true if there is at least one input reader, which interprets the given input as
     *         combined input,false, otherwise
     */
    public boolean combinesMultipleInputs(Object input);

    /**
     * Resolves any input, which serves as a container and returns the list of contained inputs, which are
     * valid for generation.
     * @param input
     *            container to resolve
     * @return the list of matching entries in the container or the input itself if it is not a container.
     */
    public List resolveContainers(Object input);

    /**
     * Reads the content at a path via the first fitting {@link InputReader} and returns a CobiGen compliant
     * input. Supports at least one EXTERNAL input reader with the same isMostLikelyReadable criteria than an
     * INTERNAL input reader.
     * @param path
     *            the {@link Path} to the object. Can also point to a folder
     * @param inputCharset
     *            of the input to be used
     * @param additionalArguments
     *            depending on the InputReader implementation
     * @return Object that is a valid input or null if the file cannot be read by any InputReader
     * @throws InputReaderException
     *             if the Path cannot be read
     */
    public Object read(Path path, Charset inputCharset, Object... additionalArguments) throws InputReaderException;

}