| /********************************************************************** |
| * Copyright (c) 2014 Ericsson |
| * |
| * All rights reserved. This program and the accompanying materials are |
| * made available under the terms of the Eclipse Public License 2.0 which |
| * accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Matthew Khouzam - Initial implementation and API |
| * Marc-Andre Laperle - Initial implementation and API |
| **********************************************************************/ |
| |
| package org.eclipse.tracecompass.internal.lttng2.control.core.relayd.commands; |
| |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.util.List; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableList.Builder; |
| |
| /** |
| * Attach session response |
| * |
| * @author Matthew Khouzam |
| */ |
| public class AttachSessionResponse implements IRelayResponse { |
| |
| /** |
| * Response size |
| * |
| * fStatus + fStreamsCount (first half of a packet) */ |
| private static final int SIZE = (Integer.SIZE + Integer.SIZE) / 8; |
| /** enum lttng_viewer_attach_return_code */ |
| private final AttachReturnCode fStatus; |
| /** how many streams are there */ |
| private final int fStreamsCount; |
| /** public class lttng_viewer_stream */ |
| private final List<StreamResponse> fStreamList; |
| |
| /** |
| * Attach session response network constructor |
| * |
| * @param inNet |
| * network input stream |
| * @throws IOException |
| * network error |
| */ |
| public AttachSessionResponse(DataInputStream inNet) throws IOException { |
| byte[] data = new byte[SIZE]; |
| inNet.readFully(data, 0, SIZE); |
| ByteBuffer bb = ByteBuffer.wrap(data); |
| bb.order(ByteOrder.BIG_ENDIAN); |
| fStatus = AttachReturnCode.values()[bb.getInt() - 1]; |
| fStreamsCount = bb.getInt(); |
| Builder<StreamResponse> streamResponses = ImmutableList.builder(); |
| for (int i = 0; i < getNbStreams(); i++) { |
| streamResponses.add(new StreamResponse(inNet)); |
| } |
| fStreamList = streamResponses.build(); |
| |
| } |
| |
| /** |
| * Gets the Status |
| * |
| * @return the Status |
| */ |
| public AttachReturnCode getStatus() { |
| return fStatus; |
| } |
| |
| /** |
| * Gets the StreamsCount |
| * |
| * @return the StreamsCount |
| */ |
| public int getNbStreams() { |
| return fStreamsCount; |
| } |
| |
| /** |
| * Gets the StreamList |
| * |
| * @return the StreamList |
| */ |
| public List<StreamResponse> getStreamList() { |
| return fStreamList; |
| } |
| |
| } |