com.spotify.docker.client.EventStream Maven / Gradle / Ivy
/*-
* -\-\-
* docker-client
* --
* Copyright (C) 2016 Spotify AB
* --
* Licensed 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 com.spotify.docker.client;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Throwables;
import com.google.common.collect.AbstractIterator;
import com.spotify.docker.client.messages.Event;
import java.io.Closeable;
import java.io.IOException;
import org.apache.http.client.methods.CloseableHttpResponse;
public class EventStream extends AbstractIterator implements Closeable {
private final EventReader reader;
EventStream(final CloseableHttpResponse response, final ObjectMapper objectMapper) {
this.reader = new EventReader(response, objectMapper);
}
@Override
protected Event computeNext() {
final Event event;
try {
event = reader.nextMessage();
} catch (IOException e) {
throw Throwables.propagate(e);
}
if (event == null) {
return endOfData();
}
return event;
}
@Override
public void close() {
try {
reader.close();
} catch (IOException e) {
throw Throwables.propagate(e);
}
}
}