com.iprogrammerr.bright.server.respondent.FilesRespondent Maven / Gradle / Ivy

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package com.iprogrammerr.bright.server.respondent;

import java.io.File;

import com.iprogrammerr.bright.server.binary.type.StaticHttpTypes;
import com.iprogrammerr.bright.server.binary.type.TypedFile;
import com.iprogrammerr.bright.server.method.GetMethod;
import com.iprogrammerr.bright.server.method.RequestMethod;
import com.iprogrammerr.bright.server.pattern.FileUrlPattern;
import com.iprogrammerr.bright.server.pattern.IndexHtmlFileUrlPattern;
import com.iprogrammerr.bright.server.request.Request;
import com.iprogrammerr.bright.server.response.Response;
import com.iprogrammerr.bright.server.response.template.NotFoundResponse;
import com.iprogrammerr.bright.server.response.template.SeeOtherResponse;

public final class FilesRespondent implements ConditionalRespondent {

    private final RequestMethod requestMethod;
    private final FileUrlPattern urlPattern;
    private final FileRespondent respondent;

    public FilesRespondent(RequestMethod requestMethod, FileUrlPattern urlPattern, FileRespondent respondent) {
	this.requestMethod = requestMethod;
	this.urlPattern = urlPattern;
	this.respondent = respondent;
    }

    public FilesRespondent(String rootDirectory, FileRespondent respondent) {
	this(new GetMethod(), new IndexHtmlFileUrlPattern(rootDirectory), respondent);
    }

    public FilesRespondent(String rootDirectory) {
	this(new GetMethod(), new IndexHtmlFileUrlPattern(rootDirectory),
		new SimpleFileRespondent(new StaticHttpTypes()));
    }

    @Override
    public boolean conditionsMet(Request request) {
	return requestMethod.is(request.method()) && urlPattern.match(request.url());
    }

    @Override
    public Response respond(Request request) throws Exception {
	if (!conditionsMet(request)) {
	    throw new Exception("Given request does not match respondent requirements");
	}
	Response response;
	File file = new File(urlPattern.filePath(request.url()));
	if (!file.exists()) {
	    response = new NotFoundResponse();
	} else if (file.isDirectory()) {
	    response = new SeeOtherResponse(request.url() + "/");
	} else {
	    response = respondent.respond(new TypedFile(file));
	}
	return response;
    }

}