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PushEventBuilder.java
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PushEventBuilder.java
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/*
* Copyright 2022 Bloomberg Finance L.P.
*
* 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.bloomberg.bmq.impl.infr.proto;
import java.io.IOException;
import java.lang.invoke.MethodHandles;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class PushEventBuilder extends EventBuilder {
static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
public PushEventBuilder() {
super(EventType.PUSH);
}
public void reset() {
super.reset(EventType.PUSH);
}
// TODO: remove boolean after 2nd release of "new style" brokers
// TODO: move to test code
public EventBuilderResult packMessage(PushMessageImpl msg, boolean isOldStyleProperties)
throws IOException {
// Warn if payload is empty
if (msg.appData().payloadSize() == 0) {
logger.warn("PUSH message payload is empty");
}
msg.appData().setIsOldStyleProperties(isOldStyleProperties);
// Compress data
msg.compressData();
int appDataLength = msg.appData().unpackedSize();
// Validate payload is not too big
if (appDataLength > PushHeader.MAX_PAYLOAD_SIZE_SOFT) {
return EventBuilderResult.PAYLOAD_TOO_BIG; // RETURN
}
int numPaddingBytes = msg.appData().numPaddingBytes();
final int sizeNoOptions =
bbos.size()
+ PushHeader.HEADER_SIZE_FOR_SCHEMA_ID
+ appDataLength
+ numPaddingBytes;
if (sizeNoOptions > EventHeader.MAX_SIZE_SOFT) {
return EventBuilderResult.EVENT_TOO_BIG; // RETURN
}
msg.streamOut(bbos);
++msgCount;
return EventBuilderResult.SUCCESS;
}
}