Java Code Examples for java.io.BufferedReader

protected static BaseDocument getResourceAsDocument(String path) throws Exception {
    InputStream in = XMLGeneratorTest.class.getResourceAsStream(path);
    BaseDocument sd = new BaseDocument(true, "text/xml"); //NOI18N
    BufferedReader br = new BufferedReader(new InputStreamReader(in,"UTF-8"));
    StringBuffer sbuf = new StringBuffer();
    try {
        String line = null;
        while ((line = br.readLine()) != null) {
            sbuf.append(line);
            sbuf.append(System.getProperty("line.separator"));
        }
    } finally {
        br.close();
    }
    sd.insertString(0,sbuf.toString(),null);
    return sd;
}
 

public static void main(String[] args) throws IOException {
    
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String s;
    while(!(s=br.readLine()).equals("0")){
        if(s.length()==1){
            System.out.println(s);
        }
        else{
            while(s.length()!=1){
                int sum=0;
                for(int i=0;i<s.length();i++){
                    sum+=Integer.parseInt(s.charAt(i)+"");
                }
                s=sum+"";
            }
            System.out.println(s);
        }
    }
    
}
 

private static String executeMemoryInfoProcess(String... command) throws IOException {
	ProcessBuilder procBuilder = new ProcessBuilder(command);
	Process process = procBuilder.start();

	InputStream is = process.getInputStream();
	InputStreamReader isr = new InputStreamReader(is, StandardCharsets.UTF_8);
	BufferedReader br = new BufferedReader(isr);
	try {
		String line;
		while ((line = br.readLine()) != null) {
			if (line.trim().isEmpty()) {
				continue;
			} else {
				return line;
			}
		}
	} catch (IOException e1) {   // NOPMD
		throw e1;
	} finally {
		br.close();
	}
	throw new IOException("Could not read memory process output for command " + Arrays.toString(command));
}
 

private String downloadJson() throws Exception {
    final StringBuilder jsonContent = new StringBuilder();

    final URLConnection urlConnection = URLConnectionHelper.createConnectionToURL(downloadUrl, requestHeaders);
    final InputStreamReader streamReader = new InputStreamReader(urlConnection.getInputStream());
    final BufferedReader bufferedReader = new BufferedReader(streamReader);

    final char data[] = new char[1024];
    int count;
    while ((count = bufferedReader.read(data)) != -1) {
        jsonContent.append(data, 0, count);
    }
    bufferedReader.close();

    return jsonContent.toString();
}
 

private static void loadSettings(BufferedReader reader, GameModel gameModel) throws IOException {
    String line = reader.readLine();
    while (line != null && (!line.contains(":") || line.trim().equalsIgnoreCase("settings"))) {
        line = reader.readLine();
    }
    if (line == null) {
        return;
    }
    if (line.trim().equalsIgnoreCase("settings")) {
        line = reader.readLine();
    }
    while (true) {
        if (line == null || line.trim().isEmpty()) {
            return;
        }
        String[] kv = line.split(" : ");
        if (kv.length != 2) {
            throw new IOException("Error parsing organism settings");
        }

        String k = kv[0];
        String v = kv[1];
        gameModel.getSettings().set(k, v);
        line = reader.readLine();
    }
}
 

protected int[] getImageSize() throws IOException
{
	String ipAddress = parentSensor.getConfiguration().ipAddress;
	URL getImgSizeUrl = new URL("http://" + ipAddress + "/axis-cgi/view/imagesize.cgi?camera=1");
	BufferedReader reader = new BufferedReader(new InputStreamReader(getImgSizeUrl.openStream()));
	
	int imgSize[] = new int[2];
	String line;
	while ((line = reader.readLine()) != null)
	{
		// split line and parse each possible property
		String[] tokens = line.split("=");
		if (tokens[0].trim().equalsIgnoreCase("image width"))
			imgSize[0] = Integer.parseInt(tokens[1].trim());
		else if (tokens[0].trim().equalsIgnoreCase("image height"))
			imgSize[1] = Integer.parseInt(tokens[1].trim());
	}
	
	// index 0 is width, index 1 is height
	return imgSize;
}
 

public void parseFile(String file, String encoding) throws IOException, MifParseException, UnSuportedFileExcetption {

		File path = new File(file);
		FileInputStream in = new FileInputStream(path);
		InputStreamReader inr = new InputStreamReader(in, encoding);
		BufferedReader bfr = new BufferedReader(inr);

		char[] doc = new char[(int) path.length()];
		bfr.read(doc);

		in.close();
		bfr.close();
		inr.close();

		setDoc(doc);
		parse();
	}
 

public void doit(Tokens t) {
    if (t.countTokens() != 1) {
        usage();
        return;
    }
    String file = t.nextToken();
    BufferedReader savedInput = in;
    try {
        BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
        in = input;
        run(false);
    } catch (Exception e) {
        out.println("Error: " + e);
        if (verboseExceptions) {
            e.printStackTrace(out);
        }
    } finally {
        in = savedInput;
    }

}
 

public void load_template(String filepath) throws IOException, CivException {
	File templateFile = new File(filepath);
	BufferedReader reader = new BufferedReader(new FileReader(templateFile));
	
	// Read first line and get size.
	String line = null;
	line = reader.readLine();
	if (line == null) {
		reader.close();
		throw new CivException("Invalid template file:"+filepath);
	}
	
	String split[] = line.split(";");
	size_x = Integer.valueOf(split[0]); 
	size_y = Integer.valueOf(split[1]);
	size_z = Integer.valueOf(split[2]);
	getTemplateBlocks(reader, size_x, size_y, size_z);
	this.filepath = filepath;
	reader.close();
}
 

public static long getTotalMemory() {
  String file_path = "/proc/meminfo";// 系统内存信息文件
  String ram_info;
  String[] arrayOfRam;
  long initial_memory = 0L;
  try {
    FileReader fr = new FileReader(file_path);
    BufferedReader localBufferedReader = new BufferedReader(fr, 8192);
    // 读取meminfo第一行，系统总内存大小
    ram_info = localBufferedReader.readLine();
    arrayOfRam = ram_info.split("\\s+");// 实现多个空格切割的效果
    initial_memory =
        Integer.valueOf(arrayOfRam[1]) * 1024;// 获得系统总内存，单位是KB，乘以1024转换为Byte
    localBufferedReader.close();
  } catch (IOException e) {
    e.printStackTrace();
  }
  return initial_memory;
}
 

private double[] getPerf(String filePath){
   	double[] result = new double[2];
	File res = new File(filePath);
	try {
		int tot=0;
		BufferedReader reader = new BufferedReader(new FileReader(res));
		String readline = null;
		while ((readline = reader.readLine()) != null) {
			result[tot++] = Double.parseDouble(readline);
		}
		reader.close();
	} catch (Exception e) {
		e.printStackTrace();
		result = null;
	}
	return result;
}
 

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
    super.onActivityResult(requestCode, resultCode, intent);
    if(requestCode == FILEREQCODE && resultCode == RESULT_OK) {

        if (intent != null) {
            data = intent.getData();
            fromExtern = true;

            Log.d(App.PACKAGE_NAME, "intent.getData() is not Null - Use App via filemanager?");
            try {
                InputStream input = getContentResolver().openInputStream(data);
                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(input));

                String text = "";
                while (bufferedReader.ready()) {
                    text += bufferedReader.readLine() + "\n";
                }
                contentView.setText(text);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}
 

public static void main (String [] args) throws Exception {
	BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
	String s;
	while (!(s=br.readLine()).equals("0")){
		int n=Integer.parseInt(s);
		HashMap<String,Integer> map=new HashMap<>();

		for (int i=0;i<n;i++) {
			StringTokenizer st=new StringTokenizer(br.readLine());
			TreeSet<String> set=new TreeSet<>();
			for (int i2=0;i2<5;i2++) set.add(st.nextToken());
			String key=set.toString();
			map.put(key, map.getOrDefault(key,0)+1);
		}
		
		int max=Collections.max(map.values());
		System.out.println(map.values().stream().filter(i -> i == max).count()*max);
	}
}
 

private static void loadCmdFile(String name, ListBuffer<String> args)
    throws IOException
{
    Reader r = new BufferedReader(new FileReader(name));
    StreamTokenizer st = new StreamTokenizer(r);
    st.resetSyntax();
    st.wordChars(' ', 255);
    st.whitespaceChars(0, ' ');
    st.commentChar('#');
    st.quoteChar('"');
    st.quoteChar('\'');
    while (st.nextToken() != StreamTokenizer.TT_EOF) {
        args.append(st.sval);
    }
    r.close();
}
 

public static void main(String[] args) throws IOException {
    // 创建服务器Socket对象,指定绑定22222这个端口，响应他
    ServerSocket ss = new ServerSocket(22222);

    // 监听客户端连接
    Socket s = ss.accept(); // 阻塞监听

    // 包装通道内容的流
    BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
    String line;
    while ((line = br.readLine()) != null) {
        System.out.println(line);
    }

    // br.close();
    s.close();
    ss.close();
}
 

/**
 * Loads the contents of this tour from the given reader.
 * 
 * @param reader the reader that defines this tour
 * @throws IOException if an I/O error occurred while reading the tour
 */
public void load(BufferedReader reader) throws IOException {
	String line = null;
	
	outer: while ((line = reader.readLine()) != null) {
		String[] tokens = line.trim().split("\\s+");
		
		for (int i = 0; i < tokens.length; i++) {
			int id = Integer.parseInt(tokens[i]);
			
			if (id == -1) {
				break outer;
			} else {
				nodes.add(id-1);
			}
		}
	}
}
 

/**
 * Loads a subject from a particular file
 *
 * @param file the file to load from
 * @return a loaded subject
 * @throws IOException if the read fails
 */
public LoadedSubject loadFromFile(Path file) throws IOException {
    if (!Files.exists(file)) {
        return null;
    }

    String fileName = file.getFileName().toString();
    String subjectName = fileName.substring(0, fileName.length() - ".json".length());

    try (BufferedReader reader = Files.newBufferedReader(file, StandardCharsets.UTF_8)) {
        JsonObject data = GsonProvider.prettyPrinting().fromJson(reader, JsonObject.class);
        SubjectDataContainer model = SubjectDataContainer.deserialize(this.service, data);
        return new LoadedSubject(subjectName, model);
    } catch (Exception e) {
        throw new IOException("Exception occurred whilst loading from " + file.toString(), e);
    }
}
 

@Test
public void testBagConstantWithSchemaInForeachBlock() throws Throwable {
    PigServer server = new PigServer(cluster.getExecType(), cluster.getProperties());
    PigContext context = server.getPigContext();

    String strCmd = "a = load 'input1'; "
            + "b = foreach a {generate {(1, '1', 0.4f),(2, '2', 0.45)} "
            + "as b: bag{t:(i: int, c:chararray, d: double)};};\n";

    ByteArrayInputStream cmd = new ByteArrayInputStream(strCmd.getBytes());
    InputStreamReader reader = new InputStreamReader(cmd);

    Grunt grunt = new Grunt(new BufferedReader(reader), context);

    grunt.exec();
}
 

/**
 * Reads message content from a file which is used as the message content to when publishing
 * messages.
 *
 * @throws IOException
 */
public void getMessageContentFromFile() throws IOException {
    if (null != this.publisherConfig.getReadMessagesFromFilePath()) {
        BufferedReader br = new BufferedReader(new FileReader(this.publisherConfig
                                                                      .getReadMessagesFromFilePath()));
        try {
            StringBuilder sb = new StringBuilder();
            String line = br.readLine();

            while (line != null) {
                sb.append(line);
                sb.append('\n');
                line = br.readLine();
            }

            // Remove the last appended next line since there is no next line.
            sb.replace(sb.length() - 1, sb.length() + 1, "");
            messageContent = sb.toString();
        } finally {
            br.close();
        }
    }
}
 

public Map<String, String> mergeProperties() {
    Map<String, String> finalProperties = new HashMap<>();
    for (Path propertyFile : propertyFiles) {
        if (!Files.exists(propertyFile)) {
            continue;
        }
        try (BufferedReader reader = Files.newBufferedReader(propertyFile)) {
            Properties properties = new Properties();
            properties.load(reader);
            properties.forEach((key, value) -> finalProperties.put(String.valueOf(key), String.valueOf(value)));
        } catch (IOException e) {
            //ignore
        }
    }
    return Collections.unmodifiableMap(finalProperties);
}
 

private String invokeService(String serviceUrl, KeycloakSecurityContext context) throws IOException {
    StringBuilder result = new StringBuilder();

    URL url = new URL(serviceUrl);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setRequestMethod("GET");
    conn.setRequestProperty(HttpHeaders.AUTHORIZATION, "Bearer " + context.getTokenString());

    if (conn.getResponseCode() != 200) {
        conn.getErrorStream().close();
        return "Service returned: " + conn.getResponseCode();
    }

    BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
    String line;
    while ((line = rd.readLine()) != null) {
        result.append(line);
    }
    rd.close();

    return result.toString();
}
 

public static String getUrl(URL url) throws IOException {
    StringBuilder sb = new StringBuilder(5000);
    if(url != null) {
        URLConnection con = url.openConnection();
        Wandora.initUrlConnection(con);
        con.setUseCaches(false);

        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream(), "UTF-8"));
 
        String s;
        while ((s = in.readLine()) != null) {
            sb.append(s);
        }
        in.close();
    }
    return sb.toString();
}
 

public String readFileIntoString(File f) throws FileNotFoundException, IOException {
  StringBuffer sb = new StringBuffer();
  BufferedReader reader = new BufferedReader(new FileReader(f));
  char[] buf = new char[1024];
  int numRead = 0;
  while ((numRead = reader.read(buf)) != -1) {
    String readData = String.valueOf(buf, 0, numRead);
    sb.append(readData);
    buf = new char[1024];
  }
  reader.close();
  return sb.toString();

}
 

public static void main(String[] args) throws IOException {
    if (args != null && args.length > 1) {
        File f = new File(args[1]);
        switch (args[0]) {
            case "-r":
                System.out.println("reading file: " + args[1]);
                String str = null;
                try (BufferedReader in = newBufferedReader(f.toPath(),
                                Charset.defaultCharset())) {
                    str = in.readLine().trim();
                }
                if (setting.equals(str)) {
                    System.out.println("Compared ok");
                } else {
                    System.out.println("Compare fails");
                    System.out.println("EXPECTED: " + setting);
                    System.out.println("OBTAINED: " + str);
                    throw new RuntimeException("Test fails: compare failed");
                }
                break;
            case "-w":
                System.out.println("writing file: " + args[1]);
                try (BufferedWriter out = newBufferedWriter(f.toPath(),
                                Charset.defaultCharset(), CREATE_NEW)) {
                    out.write(setting);
                }
                break;
            default:
                throw new RuntimeException("ERROR: invalid arguments");
        }
    } else {
        throw new RuntimeException("ERROR: invalid arguments");
    }
}
 

@Test
public void testSimpleFileWriteAndRead() throws Exception {
	final Configuration conf = createConfiguration();

	final String testLine = "Hello Upload!";

	FileSystem.initialize(conf);

	final Path path = new Path("swift://" + CONTAINER + '.' + SERVICENAME + '/' + TEST_DATA_DIR + "/test.txt");
	final FileSystem fs = path.getFileSystem();

	try {
		try (FSDataOutputStream out = fs.create(path, WriteMode.OVERWRITE);
			OutputStreamWriter writer = new OutputStreamWriter(out, StandardCharsets.UTF_8)) {
			writer.write(testLine);
		}

		try (FSDataInputStream in = fs.open(path);
			InputStreamReader ir = new InputStreamReader(in, StandardCharsets.UTF_8);
			BufferedReader reader = new BufferedReader(ir)) {
			String line = reader.readLine();
			assertEquals(testLine, line);
		}
	}
	finally {
		fs.delete(path, false);
	}
}
 

private void replaceFile(File file, String oldText, String newText) throws Exception {
  BufferedReader reader = Files.newBufferedReader(file.toPath());
  ByteArrayOutputStream writer = new ByteArrayOutputStream();

  boolean changed = false;
  try {
    String line;
    while ((line = reader.readLine()) != null) {
      if (line.contains(oldText)) {
        changed = true;
        writer.write(StringUtil.toUtf8Bytes(line.replace(oldText, newText)));
      } else {
        writer.write(StringUtil.toUtf8Bytes(line));
      }
      writer.write('\n');
    }
  } finally {
    writer.close();
    reader.close();
  }

  if (changed) {
    File newFile = new File(file.getPath() + "-new");
    byte[] newBytes = writer.toByteArray();
    IoUtil.save(file, newBytes);
    newFile.renameTo(file);
  }
}
 

/**
 * Get the op descriptors for tensorflow
 * @return the op descriptors for tensorflow
 * @throws Exception
 */
public static Map<String,OpDef> opDescs() throws Exception {
    InputStream contents = new ClassPathResource("ops.proto").getInputStream();
    try (BufferedInputStream bis2 = new BufferedInputStream(contents); BufferedReader reader = new BufferedReader(new InputStreamReader(bis2))) {
        org.tensorflow.framework.OpList.Builder builder = org.tensorflow.framework.OpList.newBuilder();

        StringBuilder str = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
            str.append(line);//.append("\n");
        }


        TextFormat.getParser().merge(str.toString(), builder);
        List<OpDef> list =  builder.getOpList();
        Map<String,OpDef> map = new HashMap<>();
        for(OpDef opDef : list) {
            map.put(opDef.getName(),opDef);
        }

        return map;

    } catch (Exception e2) {
        e2.printStackTrace();
    }

    throw new ND4JIllegalStateException("Unable to load tensorflow descriptors!");

}
 

/**
 * 检测下一行是否为当前行的内容
 * @param currentLine
 * @param br
 * @return
 * @throws IOException
 */
private static String ifNextLineIsContent(StringBuffer currentLine, BufferedReader br) throws IOException {
	String line = null;
	while ((line = br.readLine()) != null) {
		if (!isList(line) && !line.trim().equals("")) {	//如果不是列表格式，并且不是空行，则为列表的内容
			currentLine = currentLine.append("  \n").append(line);
		} else {
			return line;
		}
	}
	return null;
}
 

private static IrisRtspSdp parse(BufferedReader reader) throws IOException {
   Map<Character,Object> result = new LinkedHashMap<>();
   Map<String,Object> attrs = new LinkedHashMap<>();
   List<Media> media = new ArrayList<>();

   String next = reader.readLine();
   while (next != null) {
      if (next.length() <= 2 || next.charAt(1) != '=') {
         continue;
      }

      char name = next.charAt(0);
      String value = next.substring(2);

      try {
         switch (name) {
         case 'm': parseMedia(value, media); break;
         case 'b': parseBandwidth(value, media); break;
         case 'a': parseAttribute(value, attrs, media); break;
         default: result.put(name, value); break;
         }
      } catch (Exception ex) {
         log.warn("error parsing sdp: {}", ex.getMessage(), ex);
      }


      next = reader.readLine();
   }

   return new IrisRtspSdp(result, attrs, media);
}
 

/**
 * Check that the TypeScript definition is generated and that WorkspaceDTO is generated
 * (dependency is part of the test)
 */
@Test
public void testCheckTypeScriptGenerated() throws Exception {

  File projectCopy = this.resources.getBasedir("project");
  File pom = new File(projectCopy, "pom.xml");
  assertNotNull(pom);
  assertTrue(pom.exists());

  TypeScriptDTOGeneratorMojo mojo =
      (TypeScriptDTOGeneratorMojo) this.rule.lookupMojo("build", pom);
  configure(mojo, projectCopy);
  mojo.execute();

  File typeScriptFile = mojo.getTypescriptFile();
  // Check file has been generated
  Assert.assertTrue(typeScriptFile.exists());

  // Now check there is "org.eclipse.che.plugin.typescript.dto.MyCustomDTO" inside
  boolean foundMyCustomDTO = false;
  try (BufferedReader reader = Files.newBufferedReader(typeScriptFile.toPath(), UTF_8)) {
    String line = reader.readLine();
    while (line != null && !foundMyCustomDTO) {
      if (line.contains("MyCustomDTO")) {
        foundMyCustomDTO = true;
      }
      line = reader.readLine();
    }
  }

  Assert.assertTrue(
      "The MyCustomDTO has not been generated in the typescript definition file.",
      foundMyCustomDTO);
}