/**
* Licensed to Odiago, Inc. under one or more contributor license
* agreements. See the NOTICE.txt file distributed with this work for
* additional information regarding copyright ownership. Odiago, Inc.
* 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 com.odiago.flumebase.testutil;
import java.util.ArrayList;
import java.util.List;
import com.cloudera.flume.core.Event;
import com.cloudera.flume.core.Event.Priority;
import com.cloudera.flume.core.EventImpl;
import com.odiago.flumebase.exec.InMemStreamSymbol;
import com.odiago.flumebase.exec.StreamSymbol;
import com.odiago.flumebase.parser.TypedField;
/**
* Builder that creates a StreamSymbol that holds a replayable in-memory stream.
*/
public class MemStreamBuilder extends StreamBuilder {
private List<Event> mEvents;
private InMemStreamSymbol.LatencyPolicy mLatencyPolicy;
public MemStreamBuilder() {
this(null);
}
public MemStreamBuilder(String name) {
super(name);
mEvents = new ArrayList<Event>();
mLatencyPolicy = InMemStreamSymbol.LatencyPolicy.None;
}
public void addEvent(Event e) {
mEvents.add(e);
}
public void addEvent(byte[] eventBody) {
addEvent(new EventImpl(eventBody));
}
public void addEvent(String eventBodyText) {
addEvent(eventBodyText.getBytes());
}
public void addEvent(String eventBodyText, long eventTime) {
mEvents.add(new EventImpl(eventBodyText.getBytes(), eventTime, Priority.INFO, 0, null));
}
public void setLatencyPolicy(InMemStreamSymbol.LatencyPolicy policy) {
mLatencyPolicy = policy;
}
/**
* @return the InMemStreamSymbol representing this stream.
*/
@Override
public StreamSymbol build() {
if (null == getName()) {
throw new RuntimeException("Must call setName() to name the stream before building");
}
if (0 == getFields().size()) {
throw new RuntimeException("Must define at least one field with addField()");
}
return new InMemStreamSymbol(getName(), makeStreamType(),
new ArrayList<Event>(mEvents),
new ArrayList<TypedField>(getFields()), getFormat(),
mLatencyPolicy);
}
}