# HG changeset patch
# User egahlin
# Date 1565371015 -7200
# Node ID c75c241c492ab940b27e0e8f4bf1f45290ff8784
# Parent  9316d02dd4a57087ee81662ce385f144c0a7e535
Remove obsolete EventConsumer.java file

diff -r 9316d02dd4a5 -r c75c241c492a src/jdk.jfr/share/classes/jdk/jfr/consumer/EventConsumer.java
--- a/src/jdk.jfr/share/classes/jdk/jfr/consumer/EventConsumer.java	Fri Aug 09 01:18:18 2019 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,391 +0,0 @@
-/*
- * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * 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).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package jdk.jfr.consumer;
-
-import java.io.IOException;
-import java.lang.invoke.MethodHandles;
-import java.lang.invoke.VarHandle;
-import java.security.AccessControlContext;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
-import java.time.Duration;
-import java.time.Instant;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Comparator;
-import java.util.List;
-import java.util.Objects;
-import java.util.function.Consumer;
-
-import jdk.jfr.EventType;
-import jdk.jfr.internal.JVM;
-import jdk.jfr.internal.LogLevel;
-import jdk.jfr.internal.LogTag;
-import jdk.jfr.internal.Logger;
-import jdk.jfr.internal.LongMap;
-import jdk.jfr.internal.consumer.InternalEventFilter;
-
-abstract class EventConsumer implements Runnable {
-
-    public final static Instant NEXT_EVENT = Instant.now();
-    public final static Comparator<? super RecordedEvent> END_TIME = (e1, e2) -> Long.compare(e1.endTimeTicks, e2.endTimeTicks);
-
-    final static class EventDispatcher {
-        public final static EventDispatcher[] NO_DISPATCHERS = new EventDispatcher[0];
-
-        final private String eventName;
-        final Consumer<RecordedEvent> action;
-
-        public EventDispatcher(Consumer<RecordedEvent> action) {
-            this(null, action);
-        }
-
-        public EventDispatcher(String eventName, Consumer<RecordedEvent> action) {
-            this.eventName = eventName;
-            this.action = action;
-        }
-
-        public void offer(RecordedEvent event) {
-            action.accept(event);
-        }
-
-        public boolean accepts(EventType eventType) {
-            return (eventName == null || eventType.getName().equals(eventName));
-        }
-    }
-
-    private final static JVM jvm = JVM.getJVM();
-    private final static VarHandle closedHandle;
-    private final static VarHandle consumersHandle;
-    private final static VarHandle dispatcherHandle;
-    private final static VarHandle flushActionsHandle;
-    private final static VarHandle closeActionsHandle;
-    private final static VarHandle orderedHandle;
-    private final static VarHandle reuseHandle;
-    private final static VarHandle startTimeHandle;
-    static {
-        try {
-            MethodHandles.Lookup l = MethodHandles.lookup();
-            closedHandle = l.findVarHandle(EventConsumer.class, "closed", boolean.class);
-            consumersHandle = l.findVarHandle(EventConsumer.class, "consumers", EventDispatcher[].class);
-            dispatcherHandle = l.findVarHandle(EventConsumer.class, "dispatcher", LongMap.class);
-            flushActionsHandle = l.findVarHandle(EventConsumer.class, "flushActions", Runnable[].class);
-            closeActionsHandle = l.findVarHandle(EventConsumer.class, "closeActions", Runnable[].class);
-            orderedHandle = l.findVarHandle(EventConsumer.class, "ordered", boolean.class);
-            reuseHandle = l.findVarHandle(EventConsumer.class, "reuse", boolean.class);
-            startTimeHandle = l.findVarHandle(EventConsumer.class, "startTime", Instant.class);
-        } catch (ReflectiveOperationException e) {
-            throw new InternalError(e);
-        }
-    }
-    // set by VarHandle
-    private boolean closed;
-    // set by VarHandle
-    private EventDispatcher[] consumers = new EventDispatcher[0];
-    // set by VarHandle
-    private LongMap<EventDispatcher[]> dispatcher = new LongMap<>();
-    // set by VarHandle
-    private Runnable[] flushActions = new Runnable[0];
-    // set by VarHandle
-    private Runnable[] closeActions = new Runnable[0];
-
-    private final AccessControlContext accessControlContext;
-    protected volatile InternalEventFilter eventFilter = InternalEventFilter.ACCEPT_ALL;
-
-    private boolean started;
-    private Thread thread;
-
-    protected long startNanos;
-    protected boolean ordered = true;
-    protected boolean reuse = true;
-    Instant startTime;
-
-    public EventConsumer(AccessControlContext acc) throws IOException {
-        this.accessControlContext = acc;
-    }
-
-    public void run() {
-        doPriviliged(() -> execute());
-    }
-
-    void doPriviliged(Runnable r) {
-        AccessController.doPrivileged(new PrivilegedAction<Void>() {
-            @Override
-            public Void run() {
-                r.run();
-                return null;
-            }
-        }, accessControlContext);
-    }
-
-    private void execute() {
-        jvm.exclude(Thread.currentThread());
-        try {
-            updateStartNanos();
-            process();
-        } catch (IOException e) {
-            if (!isClosed()) {
-                logException(e);
-            }
-        } catch (Exception e) {
-            logException(e);
-        } finally {
-            Logger.log(LogTag.JFR_SYSTEM_STREAMING, LogLevel.DEBUG, "Execution of stream ended.");
-        }
-    }
-
-    // User setting overrides default
-    private void updateStartNanos() {
-        if (startTime != null) {
-            try {
-                setStartNanos(startTime.toEpochMilli() * 1_000_000L);
-            } catch (ArithmeticException ae) {
-                setStartNanos(Long.MAX_VALUE);
-            }
-        }
-    }
-
-    private void logException(Exception e) {
-        e.printStackTrace(); // for debugging purposes, remove before
-        // integration
-        Logger.log(LogTag.JFR_SYSTEM_STREAMING, LogLevel.DEBUG, "Unexpected error processing stream. " + e.getMessage());
-    }
-
-    public abstract void process() throws IOException;
-
-    public synchronized boolean remove(Object action) {
-        boolean remove = false;
-        Runnable[] updatedFlushActions = removeAction(flushActions, action);
-        if (updatedFlushActions != null) {
-            flushActionsHandle.setVolatile(this, updatedFlushActions);
-            remove = true;
-        }
-        Runnable[] updatedCloseActions = removeAction(closeActions, action);
-        if (updatedCloseActions != null) {
-            closeActionsHandle.setVolatile(this, updatedCloseActions);
-            remove = true;
-        }
-
-        boolean removeConsumer = false;
-        List<EventDispatcher> list = new ArrayList<>();
-        for (int i = 0; i < consumers.length; i++) {
-            if (consumers[i].action != action) {
-                list.add(consumers[i]);
-            } else {
-                removeConsumer = true;
-                remove = true;
-            }
-        }
-        if (removeConsumer) {
-            EventDispatcher[] array = list.toArray(new EventDispatcher[list.size()]);
-            eventFilter = buildFilter(array);
-            consumersHandle.setVolatile(this, array);
-            dispatcherHandle.setVolatile(this, new LongMap<>()); // will reset
-                                                                 // dispatch
-        }
-        return remove;
-    }
-
-    public void dispatch(RecordedEvent e) {
-        EventDispatcher[] consumerDispatch = dispatcher.get(e.getEventType().getId());
-        if (consumerDispatch == null) {
-            consumerDispatch = EventDispatcher.NO_DISPATCHERS;
-            for (EventDispatcher ec : consumers.clone()) {
-                if (ec.accepts(e.getEventType())) {
-                    consumerDispatch = merge(consumerDispatch, ec);
-                }
-            }
-            dispatcher.put(e.getEventType().getId(), consumerDispatch);
-        }
-        for (int i = 0; i < consumerDispatch.length; i++) {
-            try {
-                consumerDispatch[i].offer(e);
-            } catch (Exception exception) {
-                // Is this a reasonable behavior for an exception?
-                // Error will abort the stream.
-            }
-        }
-
-    }
-
-    public void onEvent(Consumer<RecordedEvent> action) {
-        add(new EventDispatcher(action));
-    }
-
-    public void onEvent(String eventName, Consumer<RecordedEvent> action) {
-        add(new EventDispatcher(eventName, action));
-    }
-
-    InternalEventFilter buildFilter(EventDispatcher[] dispatchers) {
-        InternalEventFilter ef = new InternalEventFilter();
-        for (EventDispatcher ed : dispatchers) {
-            String name = ed.eventName;
-            if (name == null) {
-                return InternalEventFilter.ACCEPT_ALL;
-            }
-            ef.setThreshold(name, 0);
-        }
-        return ef.threadSafe();
-    }
-
-    private synchronized void add(EventDispatcher e) {
-        EventDispatcher[] dispatchers = merge(consumers, e);
-        eventFilter = buildFilter(dispatchers);
-        consumersHandle.setVolatile(this, dispatchers);
-        dispatcherHandle.setVolatile(this, new LongMap<>()); // will reset
-    }
-
-    public synchronized void onFlush(Runnable action) {
-        flushActionsHandle.setVolatile(this, addAction(flushActions, action));
-    }
-
-    public synchronized void addCloseAction(Runnable action) {
-        closeActionsHandle.setVolatile(this, addAction(closeActions, action));
-    }
-
-    public void setClosed(boolean closed) {
-        closedHandle.setVolatile(this, closed);
-    }
-
-    final public boolean isClosed() {
-        return closed;
-    }
-
-    public void runCloseActions() {
-
-        Runnable[] cas = this.closeActions;
-        for (int i = 0; i < cas.length; i++) {
-            cas[i].run();
-        }
-    }
-
-    public void runFlushActions() {
-        Runnable[] fas = this.flushActions;
-        for (int i = 0; i < fas.length; i++) {
-            fas[i].run();
-        }
-    }
-
-    public void startAsync(long startNanos) {
-        if (started) {
-            throw new IllegalStateException("Event stream can only be started once");
-        }
-        started = true;
-        setStartNanos(startNanos);
-        thread = new Thread(this);
-        thread.setDaemon(true);
-        thread.start();
-    }
-
-    public void start(long startNanos) {
-        synchronized (this) {
-            if (started) {
-                throw new IllegalStateException("Event stream can only be started once");
-            }
-            started = true;
-            setStartNanos(startNanos);
-        }
-        run();
-    }
-
-    public void awaitTermination(Duration timeout) {
-        Objects.requireNonNull(timeout);
-        Thread t = null;
-        synchronized (this) {
-            t = thread;
-        }
-        if (t != null && t != Thread.currentThread()) {
-            try {
-                t.join(timeout.toMillis());
-            } catch (InterruptedException e) {
-                // ignore
-            }
-        }
-    }
-
-    public void awaitTermination() {
-        awaitTermination(Duration.ofMillis(0));
-    }
-
-    private void setStartNanos(long startNanos) {
-        this.startNanos = startNanos;
-    }
-
-    protected static EventDispatcher[] merge(EventDispatcher[] current, EventDispatcher add) {
-        EventDispatcher[] array = new EventDispatcher[current.length + 1];
-        System.arraycopy(current, 0, array, 0, current.length);
-        array[current.length] = add;
-        return array;
-    }
-
-    private static Runnable[] removeAction(Runnable[] array, Object action) {
-        if (array.length == 0) {
-            return null;
-        }
-        boolean remove = false;
-        List<Runnable> list = new ArrayList<>();
-        for (int i = 0; i < array.length; i++) {
-            if (array[i] != action) {
-                list.add(array[i]);
-            } else {
-                remove = true;
-            }
-        }
-        if (remove) {
-            return list.toArray(new Runnable[list.size()]);
-        }
-        return null;
-    }
-
-    private static Runnable[] addAction(Runnable[] array, Runnable action) {
-        ArrayList<Runnable> a = new ArrayList<>();
-        a.addAll(Arrays.asList(array));
-        a.add(action);
-        return a.toArray(new Runnable[0]);
-    }
-
-    abstract public void close();
-
-    public void setReuse(boolean reuse) {
-        reuseHandle.setVolatile(this, reuse);
-    }
-
-    public void setOrdered(boolean ordered) {
-        orderedHandle.setVolatile(this, ordered);
-    }
-
-    public void setStartTime(Instant startTime) {
-        Objects.nonNull(startTime);
-        if (started) {
-            throw new IllegalStateException("Stream is already started");
-        }
-        if (startTime.isBefore(Instant.EPOCH)) {
-            startTime = Instant.EPOCH;
-        }
-        startTimeHandle.setVolatile(this, startTime);
-    }
-
-}
\ No newline at end of file