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17 package org.apache.logging.log4j.core.appender.nosql;
18
19 import java.io.Serializable;
20
21 import org.apache.logging.log4j.Marker;
22 import org.apache.logging.log4j.ThreadContext;
23 import org.apache.logging.log4j.core.LogEvent;
24 import org.apache.logging.log4j.core.appender.AppenderLoggingException;
25 import org.apache.logging.log4j.core.appender.ManagerFactory;
26 import org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager;
27 import org.apache.logging.log4j.core.util.Closer;
28 import org.apache.logging.log4j.message.MapMessage;
29 import org.apache.logging.log4j.util.BiConsumer;
30 import org.apache.logging.log4j.util.ReadOnlyStringMap;
31
32
33
34
35
36
37 public final class NoSqlDatabaseManager<W> extends AbstractDatabaseManager {
38 private static final NoSQLDatabaseManagerFactory FACTORY = new NoSQLDatabaseManagerFactory();
39
40 private final NoSqlProvider<NoSqlConnection<W, ? extends NoSqlObject<W>>> provider;
41
42 private NoSqlConnection<W, ? extends NoSqlObject<W>> connection;
43
44 private NoSqlDatabaseManager(final String name, final int bufferSize,
45 final NoSqlProvider<NoSqlConnection<W, ? extends NoSqlObject<W>>> provider) {
46 super(name, bufferSize);
47 this.provider = provider;
48 }
49
50 @Override
51 protected void startupInternal() {
52
53 }
54
55 @Override
56 protected boolean shutdownInternal() {
57
58 return Closer.closeSilently(this.connection);
59 }
60
61 @Override
62 protected void connectAndStart() {
63 try {
64 this.connection = this.provider.getConnection();
65 } catch (final Exception e) {
66 throw new AppenderLoggingException("Failed to get connection from NoSQL connection provider.", e);
67 }
68 }
69
70 @Override
71 protected void writeInternal(final LogEvent event, final Serializable serializable) {
72 if (!this.isRunning() || this.connection == null || this.connection.isClosed()) {
73 throw new AppenderLoggingException(
74 "Cannot write logging event; NoSQL manager not connected to the database.");
75 }
76
77 final NoSqlObject<W> entity = this.connection.createObject();
78 if (serializable instanceof MapMessage) {
79 setFields((MapMessage<?, ?>) serializable, entity);
80 } else {
81 setFields(event, entity);
82 }
83
84 this.connection.insertObject(entity);
85 }
86
87 private void setFields(final MapMessage<?, ?> mapMessage, final NoSqlObject<W> noSqlObject) {
88
89 mapMessage.forEach(new BiConsumer<String, Object>() {
90 @Override
91 public void accept(final String key, final Object value) {
92 noSqlObject.set(key, value);
93 }
94 });
95 }
96
97 private void setFields(final LogEvent event, final NoSqlObject<W> entity) {
98 entity.set("level", event.getLevel());
99 entity.set("loggerName", event.getLoggerName());
100 entity.set("message", event.getMessage() == null ? null : event.getMessage().getFormattedMessage());
101
102 final StackTraceElement source = event.getSource();
103 if (source == null) {
104 entity.set("source", (Object) null);
105 } else {
106 entity.set("source", this.convertStackTraceElement(source));
107 }
108
109 final Marker marker = event.getMarker();
110 if (marker == null) {
111 entity.set("marker", (Object) null);
112 } else {
113 entity.set("marker", buildMarkerEntity(marker));
114 }
115
116 entity.set("threadId", event.getThreadId());
117 entity.set("threadName", event.getThreadName());
118 entity.set("threadPriority", event.getThreadPriority());
119 entity.set("millis", event.getTimeMillis());
120 entity.set("date", new java.util.Date(event.getTimeMillis()));
121
122 @SuppressWarnings("ThrowableResultOfMethodCallIgnored")
123 Throwable thrown = event.getThrown();
124 if (thrown == null) {
125 entity.set("thrown", (Object) null);
126 } else {
127 final NoSqlObject<W> originalExceptionEntity = this.connection.createObject();
128 NoSqlObject<W> exceptionEntity = originalExceptionEntity;
129 exceptionEntity.set("type", thrown.getClass().getName());
130 exceptionEntity.set("message", thrown.getMessage());
131 exceptionEntity.set("stackTrace", this.convertStackTrace(thrown.getStackTrace()));
132 while (thrown.getCause() != null) {
133 thrown = thrown.getCause();
134 final NoSqlObject<W> causingExceptionEntity = this.connection.createObject();
135 causingExceptionEntity.set("type", thrown.getClass().getName());
136 causingExceptionEntity.set("message", thrown.getMessage());
137 causingExceptionEntity.set("stackTrace", this.convertStackTrace(thrown.getStackTrace()));
138 exceptionEntity.set("cause", causingExceptionEntity);
139 exceptionEntity = causingExceptionEntity;
140 }
141
142 entity.set("thrown", originalExceptionEntity);
143 }
144
145 final ReadOnlyStringMap contextMap = event.getContextData();
146 if (contextMap == null) {
147 entity.set("contextMap", (Object) null);
148 } else {
149 final NoSqlObject<W> contextMapEntity = this.connection.createObject();
150 contextMap.forEach(new BiConsumer<String, String>() {
151 @Override
152 public void accept(final String key, final String val) {
153 contextMapEntity.set(key, val);
154 }
155 });
156 entity.set("contextMap", contextMapEntity);
157 }
158
159 final ThreadContext.ContextStack contextStack = event.getContextStack();
160 if (contextStack == null) {
161 entity.set("contextStack", (Object) null);
162 } else {
163 entity.set("contextStack", contextStack.asList().toArray());
164 }
165 }
166
167 private NoSqlObject<W> buildMarkerEntity(final Marker marker) {
168 final NoSqlObject<W> entity = this.connection.createObject();
169 entity.set("name", marker.getName());
170
171 final Marker[] parents = marker.getParents();
172 if (parents != null) {
173 @SuppressWarnings("unchecked")
174 final NoSqlObject<W>[] parentEntities = new NoSqlObject[parents.length];
175 for (int i = 0; i < parents.length; i++) {
176 parentEntities[i] = buildMarkerEntity(parents[i]);
177 }
178 entity.set("parents", parentEntities);
179 }
180 return entity;
181 }
182
183 @Override
184 protected boolean commitAndClose() {
185
186
187
188
189 return true;
190 }
191
192 private NoSqlObject<W>[] convertStackTrace(final StackTraceElement[] stackTrace) {
193 final NoSqlObject<W>[] stackTraceEntities = this.connection.createList(stackTrace.length);
194 for (int i = 0; i < stackTrace.length; i++) {
195 stackTraceEntities[i] = this.convertStackTraceElement(stackTrace[i]);
196 }
197 return stackTraceEntities;
198 }
199
200 private NoSqlObject<W> convertStackTraceElement(final StackTraceElement element) {
201 final NoSqlObject<W> elementEntity = this.connection.createObject();
202 elementEntity.set("className", element.getClassName());
203 elementEntity.set("methodName", element.getMethodName());
204 elementEntity.set("fileName", element.getFileName());
205 elementEntity.set("lineNumber", element.getLineNumber());
206 return elementEntity;
207 }
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216
217 public static NoSqlDatabaseManager<?> getNoSqlDatabaseManager(final String name, final int bufferSize,
218 final NoSqlProvider<?> provider) {
219 return AbstractDatabaseManager.getManager(name, new FactoryData(bufferSize, provider), FACTORY);
220 }
221
222
223
224
225 private static final class FactoryData extends AbstractDatabaseManager.AbstractFactoryData {
226 private final NoSqlProvider<?> provider;
227
228 protected FactoryData(final int bufferSize, final NoSqlProvider<?> provider) {
229 super(bufferSize, null);
230 this.provider = provider;
231 }
232 }
233
234
235
236
237 private static final class NoSQLDatabaseManagerFactory implements
238 ManagerFactory<NoSqlDatabaseManager<?>, FactoryData> {
239 @Override
240 @SuppressWarnings("unchecked")
241 public NoSqlDatabaseManager<?> createManager(final String name, final FactoryData data) {
242 return new NoSqlDatabaseManager(name, data.getBufferSize(), data.provider);
243 }
244 }
245 }