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package com.sun.jersey.spi.template;

import com.sun.jersey.api.core.ResourceConfig;
import java.io.IOException;
import java.io.OutputStream;
import javax.ws.rs.core.Application;
import javax.ws.rs.ext.Provider;

/**
 * A template processor.
 * <p>
 * NOTE that this interface has been deprecated, instead use the
 * {@link ViewProcessor} interface.
 * <p>
 * Implementations of this interface shall be capable of resolving a
 * template name into a fully qualified template name that identifies
 * a template supported by the implementation. And, processing the
 * template, identified by the fully qualified template name, the results
 * of which are written to an output stream.
 * <p>
 * Implementations can register a template processor as a provider, for
 * example, annotating the implementation class with {@link Provider}
 * or registering an instance as a singleton with {@link ResourceConfig}
 * or {@link Application}.
 * <p>
 * Such template processors could be JSP template processors (supported by the
 * Jersey servlet and filter implementations) or say Freemarker or Velocity
 * template processors (not implemented).
 * 
 * @author Paul.Sandoz@Sun.Com
 * @deprecated see {@link ViewProcessor}
 */
public interface TemplateProcessor {
   
    /**
     * Resolve a template name into a fully qualified template name that
     * identifies a template.
     *
     * @deprecated see {@link ViewProcessor}
     * @param name the template name
     * @return the fully qualified template name, otherwise null
     *         if the template name cannot be resolved.
     */
    String resolve(String name);

    /**
     * Process a template and write the result to an output stream.
     *
     * @deprecated see {@link ViewProcessor}
     * @param fullyQualifedName the fully qualified template name identifying a
     *        template. This is obtained by calling the resolve method with a
     *        template name.
     * @param model the model to be passed to the template.
     * @param out the output stream to write the result of processing the
     *        template.
     * @throws java.io.IOException if there was an error processing the
     *         template.
     */
    void writeTo(String fullyQualifedName, Object model, OutputStream out) throws IOException;
}