Examples of java.io.FileInputStream.available()

java.io.FileInputStream.available()
Returns an estimate of the number of remaining bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream. The next invocation might be the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes.
In some cases, a non-blocking read (or skip) may appear to be blocked when it is merely slow, for example when reading large files over slow networks. @return an estimate of the number of remaining bytes that can be read(or skipped over) from this input stream without blocking. @exception IOException if this file input stream has been closed by calling{@code close} or an I/O error occurs.


          File innerClass = new File(searchPath + "/" + name.substring(name.lastIndexOf('.') + 1) + ".class");
          if (innerClass.exists()) {
            try {
              inputStream = new FileInputStream(innerClass);
              classDefinition = new byte[inputStream.available()];
              inputStream.read(classDefinition);


              return defineClassX(name, classDefinition, 0, classDefinition.length);
            }
            finally {

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  public static Class loadClassDefinition(String path, String packageName, String className) throws IOException {
    if (path == null) return null;


    FileInputStream inputStream = new FileInputStream(path);
    byte[] classDefinition = new byte[inputStream.available()];


    String classBase = path.substring(0, path.length() - ".class".length());


    BootstrapClassloader clsLoader = new BootstrapClassloader(new File(path).getParentFile().getAbsolutePath(),
            "system".equals(classLoadingMode) ?

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        String innerClassBaseName = classBase + "$" + s;
        File innerClass = new File(innerClassBaseName + ".class");
        if (innerClass.exists()) {
          try {
            inputStream = new FileInputStream(innerClass);
            classDefinition = new byte[inputStream.available()];
            inputStream.read(classDefinition);


            clsLoader.defineClassX(fqcn, classDefinition, 0, classDefinition.length);
          }
          finally {

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            int bytesRead, totalBytesRead = 0;
            BufferedInputStream bis = null;
            FileInputStream fileInStream = null;
            try {
               fileInStream = new FileInputStream(file);
               int sz = fileInStream.available();
               bis = new BufferedInputStream(fileInStream);
               objectOutput.writeObject(file.getName());
               objectOutput.writeInt(sz);


               while (sz > totalBytesRead) {

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      {
         try
         {
            MavenXpp3Reader reader = new MavenXpp3Reader();
            FileInputStream stream = new FileInputStream(getUnderlyingResourceObject());
            if (stream.available() > 0)
            {
               currentModel = reader.read(stream);
            }
            stream.close();

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      {
         try
         {
            MavenXpp3Reader reader = new MavenXpp3Reader();
            FileInputStream stream = new FileInputStream(getUnderlyingResourceObject());
            if (stream.available() > 0)
            {
               currentModel = reader.read(stream);
            }
            stream.close();

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   * @return
   * @throws IOException
   */
  private static String read(String filePath) throws IOException {
    FileInputStream in = new FileInputStream(filePath);
    byte[] buf = new byte[in.available()];
    try {
      in.read(buf);
    } finally {
      in.close();
    }

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        List<String> ruleFiles = new ArrayList<String>();
        for (int i = firstFile; i < files.length; i++) {
            String file = files[i];
            try {
                FileInputStream fis = new FileInputStream(new File(file));
                int max = fis.available();
                int read;
                int count;
                byte[] bytes = new byte[max];
                count = fis.read(bytes);
                read = count;

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        // look up rules in any script files


        for (String scriptPath : scriptPaths) {
            try {
                FileInputStream fis = new FileInputStream(scriptPath);
                byte[] bytes = new byte[fis.available()];
                fis.read(bytes);
                String ruleScript = new String(bytes);
                scripts.add(ruleScript);
            } catch (IOException ioe) {
                System.err.println("org.jboss.byteman.agent.Main: unable to read rule script file : " + scriptPath);

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   * @return
   * @throws IOException
   */
  private static String read(String filePath) throws IOException {
    FileInputStream in = new FileInputStream(filePath);
    byte[] buf = new byte[in.available()];
    try {
      in.read(buf);
    } finally {
      in.close();
    }

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