SyslogDeserializerTests.java example

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/*
 * Copyright 2014-2016 the original author or 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 org.springframework.integration.syslog.inbound;

import static org.junit.Assert.assertEquals;

import java.io.ByteArrayInputStream;
import java.util.List;
import java.util.Map;

import org.junit.Test;

import org.springframework.integration.syslog.SyslogHeaders;

/**
 * @author Duncan McIntyre
 * @author Gary Russell
 * @since 4.1.1
 *
 */
public class SyslogDeserializerTests {

	static final String VALID_UNFRAMED_ENTRY =
			"<14>1 2014-06-20T09:14:07+00:00 loggregator d0602076-b14a-4c55-852a-981e7afeed38 DEA - - Removing instance\n";
	static final String VALID_FRAMED_ENTRY =
			"106 <14>1 2014-06-20T09:14:07+00:00 loggregator d0602076-b14a-4c55-852a-981e7afeed38 DEA - - Removing instance";
	static final String SHORT_FRAMED_ENTRY =
			"107 <14>1 2014-06-20T09:14:07+00:00 loggregator d0602076-b14a-4c55-852a-981e7afeed38 DEA - - Removing instance";
	static final String SD_ENTRY_1 =
			"179 <14>1 2014-06-20T09:14:07+00:00 loggregator d0602076-b14a-4c55-852a-981e7afeed38 DEA - " +
					"[exampleSDID@32473 iut=\\\"3\\\" eventSource=\\\"Application\\\" eventID=\\\"1011\\\"] Removing instance";
	static final String SD_ENTRY_2 =
			"253 <14>1 2014-06-20T09:14:07+00:00 loggregator d0602076-b14a-4c55-852a-981e7afeed38 DEA - " +
					"[exampleSDID@32473 iut=\\\"3\\\" eventSource=\\\"Application\\\" eventID=\\\"1011\\\"][exampleSDID@32473 " +
					"iut=\\\"3\\\" eventSource=\\\"Application\\\" eventID=\\\"1011\\\"] Removing instance";
	static final String SD_ENTRY_3 = "275 <14>1 2014-06-20T09:14:07+00:00 loggregator d0602076-b14a-4c55-852a-981e7afeed38 DEA - " +
			"[exampleSDID@32473 iut=\\\"3\\\" eventSource=\\\"Application\\\" eventID=\\\"1011\\\"][exampleSDID@32473 " +
			"iut=\\\"3\\\" eventSource=\\\"Application\\\" escapedBracket=\\\"\\]\\\" eventID=\\\"1011\\\"] Removing instance";

	@Test
	public void shouldParseAValidFramedEntry() throws Exception {

		RFC6587SyslogDeserializer deserializer = new RFC6587SyslogDeserializer();

		Map<String, ?> map = deserializer.deserialize(new ByteArrayInputStream(VALID_FRAMED_ENTRY.getBytes()));

		assertEquals(1, map.get(SyslogHeaders.FACILITY));
		assertEquals(6, map.get(SyslogHeaders.SEVERITY));
		assertEquals(1, map.get(SyslogHeaders.VERSION));
		assertEquals("2014-06-20T09:14:07+00:00", map.get(SyslogHeaders.TIMESTAMP));
		assertEquals("loggregator", map.get(SyslogHeaders.HOST));
		assertEquals("d0602076-b14a-4c55-852a-981e7afeed38", map.get(SyslogHeaders.APP_NAME));
		assertEquals("DEA", map.get(SyslogHeaders.PROCID));
		assertEquals("-", map.get(SyslogHeaders.MSGID));
		assertEquals("Removing instance", map.get(SyslogHeaders.MESSAGE));
	}

	@Test
	public void shouldParseAValidUnframedEntry() throws Exception {

		RFC6587SyslogDeserializer deserializer = new RFC6587SyslogDeserializer();

		Map<String, ?> map = deserializer.deserialize(new ByteArrayInputStream(VALID_UNFRAMED_ENTRY.getBytes()));

		assertEquals(1, map.get(SyslogHeaders.FACILITY));
		assertEquals(6, map.get(SyslogHeaders.SEVERITY));
		assertEquals(1, map.get(SyslogHeaders.VERSION));
		assertEquals("2014-06-20T09:14:07+00:00", map.get(SyslogHeaders.TIMESTAMP));
		assertEquals("loggregator", map.get(SyslogHeaders.HOST));
		assertEquals("d0602076-b14a-4c55-852a-981e7afeed38", map.get(SyslogHeaders.APP_NAME));
		assertEquals("DEA", map.get(SyslogHeaders.PROCID));
		assertEquals("-", map.get(SyslogHeaders.MSGID));
		assertEquals("Removing instance", map.get(SyslogHeaders.MESSAGE));
	}

	@Test
	public void shouldGetStructuredData() throws Exception {

		RFC6587SyslogDeserializer deserializer = new RFC6587SyslogDeserializer();

		Map<String, ?> map = deserializer.deserialize(new ByteArrayInputStream(SD_ENTRY_1.getBytes()));

		assertEquals(1, map.get(SyslogHeaders.FACILITY));
		assertEquals(6, map.get(SyslogHeaders.SEVERITY));
		assertEquals(1, map.get(SyslogHeaders.VERSION));
		assertEquals("2014-06-20T09:14:07+00:00", map.get(SyslogHeaders.TIMESTAMP));
		assertEquals("loggregator", map.get(SyslogHeaders.HOST));
		assertEquals("d0602076-b14a-4c55-852a-981e7afeed38", map.get(SyslogHeaders.APP_NAME));
		assertEquals("DEA", map.get(SyslogHeaders.PROCID));
		assertEquals("-", map.get(SyslogHeaders.MSGID));
		assertEquals("Removing instance", map.get(SyslogHeaders.MESSAGE));
		assertEquals(1, ((List<?>) map.get(SyslogHeaders.STRUCTURED_DATA)).size());
	}

	@Test
	public void shouldGetMultipleStructuredData() throws Exception {

		RFC6587SyslogDeserializer deserializer = new RFC6587SyslogDeserializer();

		Map<String, ?> map = deserializer.deserialize(new ByteArrayInputStream(SD_ENTRY_2.getBytes()));

		assertEquals("false", map.get(SyslogHeaders.DECODE_ERRORS));
		assertEquals("Removing instance", map.get(SyslogHeaders.MESSAGE));
		assertEquals(2, ((List<?>) map.get(SyslogHeaders.STRUCTURED_DATA)).size());
	}

	@Test
	public void shouldGetMultipleStructuredDataWithEscapedBracket() throws Exception {

		RFC6587SyslogDeserializer deserializer = new RFC6587SyslogDeserializer();

		Map<String, ?> map = deserializer.deserialize(new ByteArrayInputStream(SD_ENTRY_3.getBytes()));

		assertEquals("false", map.get(SyslogHeaders.DECODE_ERRORS));
		assertEquals("Removing instance", map.get(SyslogHeaders.MESSAGE));
	}

	@Test
	public void shouldErrorOnShortFramedData() throws Exception {

		RFC6587SyslogDeserializer deserializer = new RFC6587SyslogDeserializer();

		Map<String, ?> map = deserializer.deserialize(new ByteArrayInputStream(SHORT_FRAMED_ENTRY.getBytes()));

		assertEquals("true", map.get(SyslogHeaders.DECODE_ERRORS));
	}

}