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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package com.oracle.truffle.tools.chromeinspector.instrument;
import java.io.OutputStream;
import com.oracle.truffle.api.instrumentation.EventBinding;
import com.oracle.truffle.api.instrumentation.TruffleInstrument;
import com.oracle.truffle.tools.chromeinspector.OutputHandler;
@TruffleInstrument.Registration(id = OutputConsumerInstrument.ID, services = {Enabler.class, OutputHandler.Provider.class}, internal = true)
public final class OutputConsumerInstrument extends TruffleInstrument implements Enabler, OutputHandler.Provider {
public static final String ID = "OutputProviderInstrument";
private Env env;
private OutputHandler oh;
private EventBinding<OutputStream> bindingOut;
private EventBinding<OutputStream> bindingErr;
public OutputConsumerInstrument() {
}
@Override
protected void onCreate(Env e) {
this.env = e;
e.registerService(this);
}
@Override
protected void onDispose(Env e) {
disable();
super.onDispose(e);
}
@Override
public void enable() {
oh = new OutputHandler();
bindingOut = env.getInstrumenter().attachOutConsumer(oh.getOut());
bindingErr = env.getInstrumenter().attachErrConsumer(oh.getErr());
}
@Override
public void disable() {
bindingOut.dispose();
bindingErr.dispose();
oh = null;
}
@Override
public OutputHandler getOutputHandler() {
return oh;
}
}