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/*******************************************************************************
* Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.runtime;
import java.io.IOException;
import java.io.InputStream;
import org.jacoco.core.data.ExecutionDataReader;
/**
* {@link ExecutionDataReader} with commands added for runtime remote control.
*/
public class RemoteControlReader extends ExecutionDataReader {
private IRemoteCommandVisitor remoteCommandVisitor;
/**
* Create a new read based on the given input stream.
*
* @param input
* input stream to read commands from
* @throws IOException
* if the stream does not have a valid header
*/
public RemoteControlReader(final InputStream input) throws IOException {
super(input);
}
@Override
protected boolean readBlock(final byte blockid) throws IOException {
switch (blockid) {
case RemoteControlWriter.BLOCK_CMDDUMP:
readDumpCommand();
return true;
case RemoteControlWriter.BLOCK_CMDOK:
return false;
default:
return super.readBlock(blockid);
}
}
/**
* Sets an listener for agent commands.
*
* @param visitor
* visitor to retrieve agent commands
*/
public void setRemoteCommandVisitor(final IRemoteCommandVisitor visitor) {
this.remoteCommandVisitor = visitor;
}
private void readDumpCommand() throws IOException {
if (remoteCommandVisitor == null) {
throw new IOException("No remote command visitor.");
}
final boolean dump = in.readBoolean();
final boolean reset = in.readBoolean();
remoteCommandVisitor.visitDumpCommand(dump, reset);
}
}
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