ws.ament.hammock.web.resource.IOUtils Maven / Gradle / Ivy

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/*
 * Copyright 2016 Hammock and its contributors
 *
 * 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 ws.ament.hammock.web.resource;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * Adapted from Apache Commons IO
 */
public final class IOUtils {
   private IOUtils() {

   }

   static long copy(InputStream input, OutputStream output) throws IOException{
      byte[] buffer = new byte[4096];
      long count;
      int n;
      for(count = 0L; -1 != (n = input.read(buffer)); count += (long)n) {
         output.write(buffer, 0, n);
      }
      return count;
   }

}