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package org.jboss.resteasy.reactive.common.providers.serialisers;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.nio.charset.StandardCharsets;

import jakarta.ws.rs.WebApplicationException;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.MultivaluedMap;
import jakarta.ws.rs.ext.MessageBodyReader;
import jakarta.ws.rs.ext.MessageBodyWriter;

public class CharArrayMessageBodyHandler implements MessageBodyReader, MessageBodyWriter {
    public boolean isWriteable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return true;
    }

    public void writeTo(char[] o, Class type, Type genericType, Annotation[] annotations, MediaType mediaType,
            MultivaluedMap httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
        // FIXME: use response encoding
        entityStream.write(new String(o).getBytes(StandardCharsets.UTF_8));
    }

    public boolean isReadable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return type.equals(String.class);
    }

    public char[] readFrom(Class type, Type genericType, Annotation[] annotations, MediaType mediaType,
            MultivaluedMap httpHeaders, InputStream entityStream) throws IOException, WebApplicationException {
        return MessageReaderUtil.readString(entityStream, mediaType).toCharArray();
    }
}