Example usage for io.vertx.core.file FileSystem readDir

Introduction

In this page you can find the example usage for io.vertx.core.file FileSystem readDir.

Prototype

Future<List<String>> readDir(String path, String filter);

Source Link

Document

Like #readDir(String,Handler) but returns a Future of the asynchronous result

Usage

From source file:com.klwork.spring.vertx.render.MyStaticHandlerImpl.java

License:Open Source License

private void sendDirectoryListing(String dir, RoutingContext context) {
    FileSystem fileSystem = new WindowsFileSystem((VertxInternal) context.vertx());
    HttpServerRequest request = context.request();

    fileSystem.readDir(dir, asyncResult -> {
        if (asyncResult.failed()) {
            context.fail(asyncResult.cause());
        } else {//w  w w .j  ava 2 s. c o m

            String accept = request.headers().get("accept");
            if (accept == null) {
                accept = "text/plain";
            }

            if (accept.contains("html")) {
                String normalizedDir = context.normalisedPath();
                if (!normalizedDir.endsWith("/")) {
                    normalizedDir += "/";
                }

                String file;
                StringBuilder files = new StringBuilder("<ul id=\"files\">");

                List<String> list = asyncResult.result();
                Collections.sort(list);

                for (String s : list) {
                    file = s.substring(s.lastIndexOf(File.separatorChar) + 1);
                    // skip dot files
                    if (!includeHidden && file.charAt(0) == '.') {
                        continue;
                    }
                    files.append("<li><a href=\"");
                    files.append(normalizedDir);
                    files.append(file);
                    files.append("\" title=\"");
                    files.append(file);
                    files.append("\">");
                    files.append(file);
                    files.append("</a></li>");
                }

                files.append("</ul>");

                // link to parent dir
                int slashPos = 0;
                for (int i = normalizedDir.length() - 2; i > 0; i--) {
                    if (normalizedDir.charAt(i) == '/') {
                        slashPos = i;
                        break;
                    }
                }

                String parent = "<a href=\"" + normalizedDir.substring(0, slashPos + 1) + "\">..</a>";

                request.response().putHeader("content-type", "text/html");
                request.response().end(directoryTemplate(context.vertx()).replace("{directory}", normalizedDir)
                        .replace("{parent}", parent).replace("{files}", files.toString()));
            } else if (accept.contains("json")) {
                String file;
                JsonArray json = new JsonArray();

                for (String s : asyncResult.result()) {
                    file = s.substring(s.lastIndexOf(File.separatorChar) + 1);
                    // skip dot files
                    if (!includeHidden && file.charAt(0) == '.') {
                        continue;
                    }
                    json.add(file);
                }
                request.response().putHeader("content-type", "application/json");
                request.response().end(json.encode());
            } else {
                String file;
                StringBuilder buffer = new StringBuilder();

                for (String s : asyncResult.result()) {
                    file = s.substring(s.lastIndexOf(File.separatorChar) + 1);
                    // skip dot files
                    if (!includeHidden && file.charAt(0) == '.') {
                        continue;
                    }
                    buffer.append(file);
                    buffer.append('\n');
                }

                request.response().putHeader("content-type", "text/plain");
                request.response().end(buffer.toString());
            }
        }
    });
}

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From source file:org.entcore.directory.pojo.ImportInfos.java

License:Open Source License

public void validate(final boolean isAdmc, final Vertx vertx, final Handler<AsyncResult<String>> handler) {
    if (!isAdmc && isEmpty(structureId)) {
        handler.handle(new DefaultAsyncResult<>("invalid.structure.id"));
    } else if (isEmpty(structureName)) {
        handler.handle(new DefaultAsyncResult<>("invalid.structure.name"));
    } else if (ImportType.CSV == type) {
        final FileSystem fs = vertx.fileSystem();
        fs.readDir(path, new Handler<AsyncResult<List<String>>>() {
            @Override/*from   ww  w  .j ava 2  s . c  o m*/
            public void handle(AsyncResult<List<String>> list) {
                if (list.succeeded()) {
                    if (list.result().size() > 0) {
                        moveFiles(list.result(), fs, handler);
                    } else {
                        handler.handle(new DefaultAsyncResult<>("missing.csv.files"));
                    }
                } else {
                    handler.handle(new DefaultAsyncResult<String>(list.cause()));
                }
            }
        });
    } else {
        handler.handle(new DefaultAsyncResult<>("invalid.import.type"));
    }
}

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