/*
 * Copyright (C) 2011 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.jboss.errai.bus.server.io;

import static org.jboss.errai.marshalling.server.protocol.ErraiProtocolServer.encodePayloadToByteArrayInputStream;

import org.jboss.errai.bus.client.api.messaging.Message;
import org.jboss.errai.bus.server.io.buffers.Buffer;
import org.jboss.errai.bus.server.io.buffers.BufferColor;

import java.io.ByteArrayInputStream;
import java.io.IOException;

/**
 * @author Mike Brock
 */
public final class BufferHelper {
  private BufferHelper() {
  }

  public static void encodeAndWrite(final Buffer buffer, final BufferColor bufferColor, final Message message)
          throws IOException {

    buffer.write(encodePayloadToByteArrayInputStream(message.getParts()), bufferColor);
  }

  private static final byte[] NOOP_ARRAY = new byte[0];

  public static void encodeAndWriteNoop(final Buffer buffer, final BufferColor bufferColor)
          throws IOException {

    buffer.write(NOOP_ARRAY.length, new ByteArrayInputStream(NOOP_ARRAY), bufferColor);
  }
}
