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Adds support for splitting incoming requests into multiple outgoing m…
…essages with a regex defined in config
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Rasmus Jokinen
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Apr 30, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| /* | ||
| logstash-http-input to syslog bridge | ||
| Copyright 2024 Suomen Kanuuna Oy | ||
| Derivative Work of Elasticsearch | ||
| Copyright 2012-2015 Elasticsearch | ||
| 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 com.teragrep.lsh_01; | ||
|
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| import com.teragrep.lsh_01.config.PayloadConfig; | ||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
|
|
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.regex.PatternSyntaxException; | ||
|
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| /** | ||
| * A message from a log source | ||
| */ | ||
| final public class Payload { | ||
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| private final static Logger LOGGER = LogManager.getLogger(Payload.class); | ||
| private final PayloadConfig payloadConfig; | ||
| private final String body; | ||
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| public Payload(PayloadConfig payloadConfig, String body) { | ||
| this.payloadConfig = payloadConfig; | ||
| this.body = body; | ||
| } | ||
|
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| /** | ||
| * Splits the payload into multiple payloads if there is a defined split regex in the body. | ||
| * @return list of Payloads | ||
| */ | ||
| public List<Payload> split() { | ||
| ArrayList<Payload> payloads = new ArrayList<>(); | ||
|
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| try { | ||
| String[] messages = body.split(payloadConfig.splitRegex); | ||
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| for (String message: messages) { | ||
| payloads.add(new Payload(payloadConfig, message)); | ||
| } | ||
| } catch (PatternSyntaxException e) { | ||
| LOGGER.error("Invalid splitRegex in configuration: <{}>", payloadConfig.splitRegex); | ||
| payloads.add(this); | ||
| } | ||
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| return payloads; | ||
| } | ||
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| /** | ||
| * Takes the message from the payload. | ||
| * @return message body | ||
| */ | ||
| public String take() { | ||
| return body; | ||
| } | ||
| } |
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43 changes: 43 additions & 0 deletions
43
src/main/java/com/teragrep/lsh_01/config/PayloadConfig.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| logstash-http-input to syslog bridge | ||
| Copyright 2024 Suomen Kanuuna Oy | ||
| Derivative Work of Elasticsearch | ||
| Copyright 2012-2015 Elasticsearch | ||
| 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 com.teragrep.lsh_01.config; | ||
|
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| public class PayloadConfig implements Validateable { | ||
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| public final String splitRegex; | ||
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| public PayloadConfig() { | ||
| PropertiesReaderUtilityClass propertiesReader = new PropertiesReaderUtilityClass( | ||
| System.getProperty("properties.file", "etc/config.properties") | ||
| ); | ||
| splitRegex = propertiesReader.getStringProperty("payload.splitRegex"); | ||
| } | ||
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| @Override | ||
| public void validate() { | ||
|
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| } | ||
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| @Override | ||
| public String toString() { | ||
| return "PayloadConfig{" + "splitRegex='" + splitRegex + '}'; | ||
| } | ||
| } |
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