Track stopped state during shutdown (WIP). Project: http://git-wip-us.apache.org/repos/asf/logging-log4j2/repo Commit: http://git-wip-us.apache.org/repos/asf/logging-log4j2/commit/41ac242d Tree: http://git-wip-us.apache.org/repos/asf/logging-log4j2/tree/41ac242d Diff: http://git-wip-us.apache.org/repos/asf/logging-log4j2/diff/41ac242d
Branch: refs/heads/LOG4J2-1349-gcfree-threadcontext Commit: 41ac242daad2cfcae45b209d420eaca8a21f9837 Parents: f6bb2c3 Author: ggregory <ggreg...@us-l-gg02.rocketsoftware.com> Authored: Wed Sep 7 12:55:06 2016 -0400 Committer: ggregory <ggreg...@us-l-gg02.rocketsoftware.com> Committed: Wed Sep 7 12:55:06 2016 -0400 ---------------------------------------------------------------------- .../appender/AbstractOutputStreamAppender.java | 376 +++++++++---------- 1 file changed, 188 insertions(+), 188 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/41ac242d/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/AbstractOutputStreamAppender.java ---------------------------------------------------------------------- diff --git a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/AbstractOutputStreamAppender.java b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/AbstractOutputStreamAppender.java index 1ff4cb9..d4ad3f7 100644 --- a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/AbstractOutputStreamAppender.java +++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/AbstractOutputStreamAppender.java @@ -1,188 +1,188 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache license, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the license for the specific language governing permissions and - * limitations under the license. - */ -package org.apache.logging.log4j.core.appender; - -import java.io.Serializable; -import java.util.concurrent.TimeUnit; - -import org.apache.logging.log4j.core.Filter; -import org.apache.logging.log4j.core.Layout; -import org.apache.logging.log4j.core.LogEvent; -import org.apache.logging.log4j.core.config.plugins.PluginBuilderAttribute; -import org.apache.logging.log4j.core.util.Constants; - -/** - * Appends log events as bytes to a byte output stream. The stream encoding is defined in the layout. - * - * @param <M> The kind of {@link OutputStreamManager} under management - */ -public abstract class AbstractOutputStreamAppender<M extends OutputStreamManager> extends AbstractAppender { - - /** - * Subclasses can extend this abstract Builder. - * - * @param <B> This builder class. - */ - public abstract static class Builder<B extends Builder<B>> extends AbstractAppender.Builder<B> { - - @PluginBuilderAttribute - private boolean bufferedIo = true; - - @PluginBuilderAttribute - private int bufferSize = Constants.ENCODER_BYTE_BUFFER_SIZE; - - @PluginBuilderAttribute - private boolean immediateFlush; - - public int getBufferSize() { - return bufferSize; - } - - public boolean isBufferedIo() { - return bufferedIo; - } - - public boolean isImmediateFlush() { - return immediateFlush; - } - - public B withImmediateFlush(final boolean immediateFlush) { - this.immediateFlush = immediateFlush; - return asBuilder(); - } - - public B withBufferedIo(final boolean bufferedIo) { - this.bufferedIo = bufferedIo; - return asBuilder(); - } - - public B withBufferSize(final int bufferSize) { - this.bufferSize = bufferSize; - return asBuilder(); - } - - } - - /** - * Immediate flush means that the underlying writer or output stream will be flushed at the end of each append - * operation. Immediate flush is slower but ensures that each append request is actually written. If - * <code>immediateFlush</code> is set to {@code false}, then there is a good chance that the last few logs events - * are not actually written to persistent media if and when the application crashes. - */ - private final boolean immediateFlush; - - private final M manager; - - /** - * Instantiates a WriterAppender and set the output destination to a new {@link java.io.OutputStreamWriter} - * initialized with <code>os</code> as its {@link java.io.OutputStream}. - * - * @param name The name of the Appender. - * @param layout The layout to format the message. - * @param manager The OutputStreamManager. - */ - protected AbstractOutputStreamAppender(final String name, final Layout<? extends Serializable> layout, - final Filter filter, final boolean ignoreExceptions, final boolean immediateFlush, final M manager) { - super(name, filter, layout, ignoreExceptions); - this.manager = manager; - this.immediateFlush = immediateFlush; - } - - /** - * Gets the immediate flush setting. - * - * @return immediate flush. - */ - public boolean getImmediateFlush() { - return immediateFlush; - } - - /** - * Gets the manager. - * - * @return the manager. - */ - public M getManager() { - return manager; - } - - @Override - public void start() { - if (getLayout() == null) { - LOGGER.error("No layout set for the appender named [" + getName() + "]."); - } - if (manager == null) { - LOGGER.error("No OutputStreamManager set for the appender named [" + getName() + "]."); - } - super.start(); - } - - @Override - public boolean stop(final long timeout, final TimeUnit timeUnit) { - return stop(timeout, timeUnit, true); - } - - @Override - protected boolean stop(final long timeout, final TimeUnit timeUnit, final boolean changeLifeCycleState) { - super.stop(timeout, timeUnit, changeLifeCycleState); - manager.stop(timeout, timeUnit); - if (changeLifeCycleState) { - setStopped(); - } - return true; - } - - /** - * Actual writing occurs here. - * <p> - * Most subclasses of <code>AbstractOutputStreamAppender</code> will need to override this method. - * </p> - * - * @param event The LogEvent. - */ - @Override - public void append(final LogEvent event) { - try { - tryAppend(event); - } catch (final AppenderLoggingException ex) { - error("Unable to write to stream " + manager.getName() + " for appender " + getName() + ": " + ex); - throw ex; - } - } - - private void tryAppend(final LogEvent event) { - if (Constants.ENABLE_DIRECT_ENCODERS) { - directEncodeEvent(event); - } else { - writeByteArrayToManager(event); - } - } - - protected void directEncodeEvent(final LogEvent event) { - getLayout().encode(event, manager); - if (this.immediateFlush || event.isEndOfBatch()) { - manager.flush(); - } - } - - protected void writeByteArrayToManager(final LogEvent event) { - final byte[] bytes = getLayout().toByteArray(event); - if (bytes != null && bytes.length > 0) { - manager.write(bytes, this.immediateFlush || event.isEndOfBatch()); - } - } -} +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache license, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the license for the specific language governing permissions and + * limitations under the license. + */ +package org.apache.logging.log4j.core.appender; + +import java.io.Serializable; +import java.util.concurrent.TimeUnit; + +import org.apache.logging.log4j.core.Filter; +import org.apache.logging.log4j.core.Layout; +import org.apache.logging.log4j.core.LogEvent; +import org.apache.logging.log4j.core.config.plugins.PluginBuilderAttribute; +import org.apache.logging.log4j.core.util.Constants; + +/** + * Appends log events as bytes to a byte output stream. The stream encoding is defined in the layout. + * + * @param <M> The kind of {@link OutputStreamManager} under management + */ +public abstract class AbstractOutputStreamAppender<M extends OutputStreamManager> extends AbstractAppender { + + /** + * Subclasses can extend this abstract Builder. + * + * @param <B> This builder class. + */ + public abstract static class Builder<B extends Builder<B>> extends AbstractAppender.Builder<B> { + + @PluginBuilderAttribute + private boolean bufferedIo = true; + + @PluginBuilderAttribute + private int bufferSize = Constants.ENCODER_BYTE_BUFFER_SIZE; + + @PluginBuilderAttribute + private boolean immediateFlush; + + public int getBufferSize() { + return bufferSize; + } + + public boolean isBufferedIo() { + return bufferedIo; + } + + public boolean isImmediateFlush() { + return immediateFlush; + } + + public B withImmediateFlush(final boolean immediateFlush) { + this.immediateFlush = immediateFlush; + return asBuilder(); + } + + public B withBufferedIo(final boolean bufferedIo) { + this.bufferedIo = bufferedIo; + return asBuilder(); + } + + public B withBufferSize(final int bufferSize) { + this.bufferSize = bufferSize; + return asBuilder(); + } + + } + + /** + * Immediate flush means that the underlying writer or output stream will be flushed at the end of each append + * operation. Immediate flush is slower but ensures that each append request is actually written. If + * <code>immediateFlush</code> is set to {@code false}, then there is a good chance that the last few logs events + * are not actually written to persistent media if and when the application crashes. + */ + private final boolean immediateFlush; + + private final M manager; + + /** + * Instantiates a WriterAppender and set the output destination to a new {@link java.io.OutputStreamWriter} + * initialized with <code>os</code> as its {@link java.io.OutputStream}. + * + * @param name The name of the Appender. + * @param layout The layout to format the message. + * @param manager The OutputStreamManager. + */ + protected AbstractOutputStreamAppender(final String name, final Layout<? extends Serializable> layout, + final Filter filter, final boolean ignoreExceptions, final boolean immediateFlush, final M manager) { + super(name, filter, layout, ignoreExceptions); + this.manager = manager; + this.immediateFlush = immediateFlush; + } + + /** + * Gets the immediate flush setting. + * + * @return immediate flush. + */ + public boolean getImmediateFlush() { + return immediateFlush; + } + + /** + * Gets the manager. + * + * @return the manager. + */ + public M getManager() { + return manager; + } + + @Override + public void start() { + if (getLayout() == null) { + LOGGER.error("No layout set for the appender named [" + getName() + "]."); + } + if (manager == null) { + LOGGER.error("No OutputStreamManager set for the appender named [" + getName() + "]."); + } + super.start(); + } + + @Override + public boolean stop(final long timeout, final TimeUnit timeUnit) { + return stop(timeout, timeUnit, true); + } + + @Override + protected boolean stop(final long timeout, final TimeUnit timeUnit, final boolean changeLifeCycleState) { + boolean stopped = super.stop(timeout, timeUnit, changeLifeCycleState); + manager.stop(timeout, timeUnit); + if (changeLifeCycleState) { + setStopped(); + } + return stopped; + } + + /** + * Actual writing occurs here. + * <p> + * Most subclasses of <code>AbstractOutputStreamAppender</code> will need to override this method. + * </p> + * + * @param event The LogEvent. + */ + @Override + public void append(final LogEvent event) { + try { + tryAppend(event); + } catch (final AppenderLoggingException ex) { + error("Unable to write to stream " + manager.getName() + " for appender " + getName() + ": " + ex); + throw ex; + } + } + + private void tryAppend(final LogEvent event) { + if (Constants.ENABLE_DIRECT_ENCODERS) { + directEncodeEvent(event); + } else { + writeByteArrayToManager(event); + } + } + + protected void directEncodeEvent(final LogEvent event) { + getLayout().encode(event, manager); + if (this.immediateFlush || event.isEndOfBatch()) { + manager.flush(); + } + } + + protected void writeByteArrayToManager(final LogEvent event) { + final byte[] bytes = getLayout().toByteArray(event); + if (bytes != null && bytes.length > 0) { + manager.write(bytes, this.immediateFlush || event.isEndOfBatch()); + } + } +}