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message size calculation improvements (#820)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| // Copyright 2015-2022 The NATS Authors | ||
| // 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 io.nats.client.impl; | ||
|
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| public class IncomingMessage extends NatsMessage { | ||
| IncomingMessage() {} | ||
|
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| IncomingMessage(byte[] data) { | ||
| super(data); | ||
| } | ||
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| @Override | ||
| byte[] getProtocolBytes() { | ||
| throw new IllegalStateException("getProtocolBytes not supported for this type of message."); | ||
| } | ||
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| @Override | ||
| int getControlLineLength() { | ||
| throw new IllegalStateException("getControlLineLength not supported for this type of message."); | ||
| } | ||
| } |
76 changes: 76 additions & 0 deletions
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src/main/java/io/nats/client/impl/IncomingMessageFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| // Copyright 2015-2022 The NATS Authors | ||
| // 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. | ||
|
|
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| package io.nats.client.impl; | ||
|
|
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| import io.nats.client.support.IncomingHeadersProcessor; | ||
| import io.nats.client.support.Status; | ||
|
|
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| import static io.nats.client.support.NatsJetStreamConstants.JS_ACK_SUBJECT_PREFIX; | ||
|
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| // ---------------------------------------------------------------------------------------------------- | ||
| // Incoming Message Factory - internal use only | ||
| // ---------------------------------------------------------------------------------------------------- | ||
| class IncomingMessageFactory { | ||
| private final String sid; | ||
| private final String subject; | ||
| private final String replyTo; | ||
| private final int protocolLineLength; | ||
| private final boolean utf8mode; | ||
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| private byte[] data; | ||
| private Headers headers; | ||
| private Status status; | ||
| private int headerLen; | ||
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| // Create an incoming message for a subscriber | ||
| // Doesn't check control line size, since the server sent us the message | ||
| IncomingMessageFactory(String sid, String subject, String replyTo, int protocolLength, boolean utf8mode) { | ||
| this.sid = sid; | ||
| this.subject = subject; | ||
| this.replyTo = replyTo; | ||
| this.protocolLineLength = protocolLength; | ||
| this.utf8mode = utf8mode; | ||
| } | ||
|
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| void setHeaders(IncomingHeadersProcessor ihp) { | ||
| headers = ihp.getHeaders(); | ||
| status = ihp.getStatus(); | ||
| headerLen = ihp.getSerializedLength(); | ||
| } | ||
|
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| void setData(byte[] data) { | ||
| this.data = data; | ||
| } | ||
|
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| NatsMessage getMessage() { | ||
| NatsMessage message; | ||
| if (status != null) { | ||
| message = new StatusMessage(status); | ||
| } | ||
| else if (replyTo != null && replyTo.startsWith(JS_ACK_SUBJECT_PREFIX)) { | ||
| message = new NatsJetStreamMessage(data); | ||
| } | ||
| else { | ||
| message = new IncomingMessage(data); | ||
| } | ||
| message.sid = sid; | ||
| message.subject = subject; | ||
| message.replyTo = replyTo; | ||
| message.headers = headers; | ||
| message.headerLen = headerLen; | ||
| message.utf8mode = utf8mode; | ||
| message.sizeInBytes = protocolLineLength + headerLen + message.dataLen + 4; // Two CRLFs | ||
| return message; | ||
| } | ||
| } |
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