1 /******************************************************************************* 2 * Copyright (c) 2009, 2018 Mountainminds GmbH & Co. KG and Contributors 3 * All rights reserved. This program and the accompanying materials 4 * are made available under the terms of the Eclipse Public License v1.0 5 * which accompanies this distribution, and is available at 6 * http://www.eclipse.org/legal/epl-v10.html 7 * 8 * Contributors: 9 * Marc R. Hoffmann - initial API and implementation 10 * 11 *******************************************************************************/ 12 package org.jacoco.core.runtime; 13 14 import java.io.IOException; 15 import java.io.OutputStream; 16 17 import org.jacoco.core.data.ExecutionDataWriter; 18 19 /** 20 * {@link ExecutionDataWriter} with commands added for runtime remote control. 21 */ 22 public class RemoteControlWriter extends ExecutionDataWriter implements 23 IRemoteCommandVisitor { 24 25 /** Block identifier to confirm successful command execution. */ 26 public static final byte BLOCK_CMDOK = 0x20; 27 28 /** Block identifier for dump command */ 29 public static final byte BLOCK_CMDDUMP = 0x40; 30 31 /** 32 * Creates a new writer based on the given output stream. 33 * 34 * @param output 35 * stream to write commands to 36 * @throws IOException 37 * if the header can't be written 38 */ 39 public RemoteControlWriter(final OutputStream output) throws IOException { 40 super(output); 41 } 42 43 /** 44 * Sends a confirmation that a commands has been successfully executed and 45 * the response is completed. 46 * 47 * @throws IOException 48 * in case of problems with the remote connection 49 */ 50 public void sendCmdOk() throws IOException { 51 out.writeByte(RemoteControlWriter.BLOCK_CMDOK); 52 } 53 54 public void visitDumpCommand(final boolean dump, final boolean reset) 55 throws IOException { 56 out.writeByte(RemoteControlWriter.BLOCK_CMDDUMP); 57 out.writeBoolean(dump); 58 out.writeBoolean(reset); 59 } 60 61 } 62
