content: /*
   * Copyright (C) 2017 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.android.layout.remote.util;
  
  import com.android.layout.remote.util.RemoteInputStream.EndOfStreamException;
  import com.android.tools.layoutlib.annotations.NotNull;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.rmi.RemoteException;
  
  public class StreamUtil {
      /**
       * Returns a local {@link InputStream} from a {@link RemoteInputStream}
       */
      @NotNull
      public static InputStream getInputStream(@NotNull RemoteInputStream is) {
          return new InputStream() {
              @Override
              public int read() throws IOException {
                  return is.read();
              }
  
              @SuppressWarnings("NullableProblems")
              @Override
              public int read(byte[] b) throws IOException {
                  return read(b, 0, b.length);
              }
  
              @SuppressWarnings("NullableProblems")
              @Override
              public int read(byte[] b, int off, int len) throws IOException {
                  try {
                      byte[] read = is.read(off, len);
                      int actualLength = Math.min(len, read.length);
                      System.arraycopy(read, 0, b, off, actualLength);
                      return actualLength;
                  } catch (EndOfStreamException e) {
                      return -1;
                  }
              }
  
              @Override
              public long skip(long n) throws IOException {
                  return is.skip(n);
              }
  
              @Override
              public int available() throws IOException {
                  return is.available();
              }
  
              @Override
              public void close() throws IOException {
                  is.close();
              }
  
              @Override
              public synchronized void mark(int readlimit) {
                  try {
                      is.mark(readlimit);
                  } catch (RemoteException e) {
                      throw new RuntimeException(e);
                  }
              }
  
              @Override
              public synchronized void reset() throws IOException {
                  is.reset();
              }
  
              @Override
              public boolean markSupported() {
                  try {
                      return is.markSupported();
                  } catch (RemoteException e) {
                      throw new RuntimeException(e);
                  }
              }
          };
      }
  }
  