/**
* 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.cxf.jaxrs.nio;
import java.io.IOException;
import java.io.OutputStream;
import java.util.logging.Logger;
import javax.servlet.WriteListener;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.continuations.Continuation;
import org.apache.cxf.jaxrs.utils.ExceptionUtils;
public final class NioWriteListenerImpl implements WriteListener {
private static final Logger LOG = LogUtils.getL7dLogger(NioWriteListenerImpl.class);
private Continuation cont;
private final NioWriteEntity entity;
private final DelegatingNioOutputStream out;
public NioWriteListenerImpl(Continuation cont, NioWriteEntity entity, OutputStream out) {
this.cont = cont;
this.entity = entity;
this.out = new DelegatingNioOutputStream(out);
}
@Override
public void onWritePossible() throws IOException {
while (cont.isReadyForWrite()) {
if (!entity.getWriter().write(out)) {
cont.reset();
return;
}
}
}
@Override
public void onError(Throwable t) {
try {
entity.getError().error(t);
} catch (final Throwable ex) {
LOG.warning("NIO WriteListener error: " + ExceptionUtils.getStackTrace(ex));
} finally {
cont.resume();
}
}
}