Java IOUtils类代码示例

import org.apache.logging.log4j.core.util.IOUtils; //导入依赖的package包/类
public String annotate(String text) throws URISyntaxException, IOException {
    URI requestURI = new URIBuilder(endpoint).build();
    HttpPost request = new HttpPost(requestURI);

    List<NameValuePair> urlParameters = new ArrayList<>();
    urlParameters.add(new BasicNameValuePair("text", text));
    urlParameters.add(new BasicNameValuePair("disambiguation", "1"));
    urlParameters.add(new BasicNameValuePair("topic", "0.25"));
    urlParameters.add(new BasicNameValuePair("include_text", "1"));
    urlParameters.add(new BasicNameValuePair("min_weight", "0.25"));
    urlParameters.add(new BasicNameValuePair("image", "1"));
    urlParameters.add(new BasicNameValuePair("class", "1"));
    urlParameters.add(new BasicNameValuePair("app_id", "0"));
    urlParameters.add(new BasicNameValuePair("app_key", "0"));

    request.setEntity(new UrlEncodedFormEntity(urlParameters));
    CloseableHttpResponse response = client.execute(request);
    if (response.getStatusLine().getStatusCode() >= 400) {
        response.close();
        throw new IOException("Wikimachine endpoint didn't understand the request");
    }
    String responseText = IOUtils.toString(new InputStreamReader(response.getEntity().getContent()));
    response.close();

    return responseText;
}
 

import org.apache.logging.log4j.core.util.IOUtils; //导入依赖的package包/类
private SagaResponse on(Request request) {
  try {
    HttpResponse httpResponse = request.execute().returnResponse();
    int statusCode = httpResponse.getStatusLine().getStatusCode();
    String content = IOUtils.toString(new InputStreamReader(httpResponse.getEntity().getContent()));
    if (statusCode >= 200 && statusCode < 300) {
      return new SuccessfulSagaResponse(content);
    }
    throw new TransportFailedException("The remote service returned with status code " + statusCode
        + ", reason " + httpResponse.getStatusLine().getReasonPhrase()
        + ", and content " + content);
  } catch (IOException e) {
    throw new TransportFailedException("Network Error", e);
  }
}
 

import org.apache.logging.log4j.core.util.IOUtils; //导入依赖的package包/类
/**
 * Execute a command from specified path
 * @param command command to be executed
 * @param pathName path where the command should be executed
 * @return command's output
 */
public static String run(String command, String pathName) {

  ExecutorService newFixedThreadPool = null;

  try {
    logger.info(CMD_LOG_TMPL, Optional.ofNullable(pathName).orElse(""), command);
    final Process process;
    String[] cmd = { "/bin/sh", "-c", command};
    process = Runtime.getRuntime().exec(
        cmd,
        null,
        StringUtils.isNotBlank(pathName) ? new File(pathName) : null);

    newFixedThreadPool = Executors.newFixedThreadPool(1);
    Future<String> output = newFixedThreadPool.submit(() ->
      IOUtils.toString( new InputStreamReader(process.getInputStream()))
    );
    Future<String> error = newFixedThreadPool.submit(() ->
      IOUtils.toString( new InputStreamReader(process.getErrorStream()))
    );

    if (!process.waitFor(3, TimeUnit.MINUTES)) {
      logger.info("Destroy process, it's been hanged out for more than 3 minutes!");
      process.destroy();
    }
    logger.info(CMD_LOG_TMPL, Optional.ofNullable(pathName).orElse(""), output.get());
    if (StringUtils.isNotBlank(error.get())){
      logger.error(CMD_LOG_TMPL,  Optional.ofNullable(pathName).orElse(""), error.get());
    }

    return output.get();

  } catch (Exception e) {
    logger.error("Error executing command: " + command, e);
  } finally {
    Optional.ofNullable(newFixedThreadPool).ifPresent(ExecutorService::shutdown);
  }
  return StringUtils.EMPTY;
}
 

import org.apache.logging.log4j.core.util.IOUtils; //导入依赖的package包/类
private String getStringContent(URL resource) throws IOException {
    try (InputStream resourceAsStream = resource.openStream()) {
        InputStreamReader inputStreamReader = new InputStreamReader(resourceAsStream, "UTF-8");
        return IOUtils.toString(inputStreamReader);
    }
}
 

import org.apache.logging.log4j.core.util.IOUtils; //导入依赖的package包/类
@NotNull
private String readResource(@NotNull final String resource) throws IOException {
    InputStream in = getClass().getResourceAsStream(resource);
    BufferedReader reader = new BufferedReader(new InputStreamReader(in));
    return IOUtils.toString(reader);
}
 

import org.apache.logging.log4j.core.util.IOUtils; //导入依赖的package包/类
@NotNull
private String readResource() throws IOException {
    InputStream in = VersionInfo.class.getClassLoader().getResourceAsStream(resource);
    BufferedReader reader = new BufferedReader(new InputStreamReader(in));
    return IOUtils.toString(reader);
}
 

import org.apache.logging.log4j.core.util.IOUtils; //导入依赖的package包/类
@PluginFactory
public static ScriptFile createScript(
        // @formatter:off
        @PluginAttribute("name") String name,
        @PluginAttribute("language") String language,
        @PluginAttribute("path") final String filePathOrUri,
        @PluginAttribute("isWatched") final Boolean isWatched,
        @PluginAttribute("charset") final Charset charset) {
        // @formatter:on
    if (filePathOrUri == null) {
        LOGGER.error("No script path provided for ScriptFile");
        return null;
    }
    if (name == null) {
        name = filePathOrUri;
    }
    final URI uri = NetUtils.toURI(filePathOrUri);
    final File file = FileUtils.fileFromUri(uri);
    if (language == null && file != null) {
        final String fileExtension = FileUtils.getFileExtension(file);
        if (fileExtension != null) {
            final ExtensionLanguageMapping mapping = ExtensionLanguageMapping.getByExtension(fileExtension);
            if (mapping != null) {
                language = mapping.getLanguage();
            }
        }
    }
    if (language == null) {
        LOGGER.info("No script language supplied, defaulting to {}", DEFAULT_LANGUAGE);
        language = DEFAULT_LANGUAGE;
    }

    final Charset actualCharset = charset == null ? Charset.defaultCharset() : charset;
    String scriptText;
    try (final Reader reader = new InputStreamReader(
            file != null ? new FileInputStream(file) : uri.toURL().openStream(), actualCharset)) {
        scriptText = IOUtils.toString(reader);
    } catch (final IOException e) {
        LOGGER.error("{}: language={}, path={}, actualCharset={}", e.getClass().getSimpleName(),
                language, filePathOrUri, actualCharset);
        return null;
    }
    final Path path = file != null ? Paths.get(file.toURI()) : Paths.get(uri);
    if (path == null) {
        LOGGER.error("Unable to convert {} to a Path", uri.toString());
        return null;
    }
    return new ScriptFile(name, path, language, isWatched == null ? Boolean.FALSE : isWatched, scriptText);
}
 

import org.apache.logging.log4j.core.util.IOUtils; //导入依赖的package包/类
@Override
public void send(final Layout<?> layout, final LogEvent event) throws IOException {
    final HttpURLConnection urlConnection = (HttpURLConnection)url.openConnection();
    urlConnection.setAllowUserInteraction(false);
    urlConnection.setDoOutput(true);
    urlConnection.setDoInput(true);
    urlConnection.setRequestMethod(method);
    if (connectTimeoutMillis > 0) {
        urlConnection.setConnectTimeout(connectTimeoutMillis);
    }
    if (readTimeoutMillis > 0) {
        urlConnection.setReadTimeout(readTimeoutMillis);
    }
    if (layout.getContentType() != null) {
        urlConnection.setRequestProperty("Content-Type", layout.getContentType());
    }
    for (final Property header : headers) {
        urlConnection.setRequestProperty(
            header.getName(),
            header.isValueNeedsLookup() ? getConfiguration().getStrSubstitutor().replace(event, header.getValue()) : header.getValue());
    }
    if (sslConfiguration != null) {
        ((HttpsURLConnection)urlConnection).setSSLSocketFactory(sslConfiguration.getSslSocketFactory());
    }
    if (isHttps && !verifyHostname) {
        ((HttpsURLConnection)urlConnection).setHostnameVerifier(LaxHostnameVerifier.INSTANCE);
    }

    final byte[] msg = layout.toByteArray(event);
    urlConnection.setFixedLengthStreamingMode(msg.length);
    urlConnection.connect();
    try (OutputStream os = urlConnection.getOutputStream()) {
        os.write(msg);
    }

    final byte[] buffer = new byte[1024];
    try (InputStream is = urlConnection.getInputStream()) {
        while (IOUtils.EOF != is.read(buffer)) {
            // empty
        }
    } catch (final IOException e) {
        final StringBuilder errorMessage = new StringBuilder();
        try (InputStream es = urlConnection.getErrorStream()) {
            errorMessage.append(urlConnection.getResponseCode());
            if (urlConnection.getResponseMessage() != null) {
                errorMessage.append(' ').append(urlConnection.getResponseMessage());
            }
            if (es != null) {
                errorMessage.append(" - ");
                int n;
                while (IOUtils.EOF != (n = es.read(buffer))) {
                    errorMessage.append(new String(buffer, 0, n, CHARSET));
                }
            }
        }
        if (urlConnection.getResponseCode() > -1) {
            throw new IOException(errorMessage.toString());
        } else {
            throw e;
        }
    }
}