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17 package org.apache.logging.log4j.nosql.appender;
18
19 import java.util.Map;
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
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33
34 public final class NoSqlDatabaseManager<W> extends AbstractDatabaseManager {
35 private static final NoSQLDatabaseManagerFactory FACTORY = new NoSQLDatabaseManagerFactory();
36
37 private final NoSqlProvider<NoSqlConnection<W, ? extends NoSqlObject<W>>> provider;
38
39 private NoSqlConnection<W, ? extends NoSqlObject<W>> connection;
40
41 private NoSqlDatabaseManager(final String name, final int bufferSize,
42 final NoSqlProvider<NoSqlConnection<W, ? extends NoSqlObject<W>>> provider) {
43 super(name, bufferSize);
44 this.provider = provider;
45 }
46
47 @Override
48 protected void startupInternal() {
49
50 }
51
52 @Override
53 protected void shutdownInternal() {
54
55 Closer.closeSilently(this.connection);
56 }
57
58 @Override
59 protected void connectAndStart() {
60 try {
61 this.connection = this.provider.getConnection();
62 } catch (final Exception e) {
63 throw new AppenderLoggingException("Failed to get connection from NoSQL connection provider.", e);
64 }
65 }
66
67 @Override
68 protected void writeInternal(final LogEvent event) {
69 if (!this.isRunning() || this.connection == null || this.connection.isClosed()) {
70 throw new AppenderLoggingException(
71 "Cannot write logging event; NoSQL manager not connected to the database.");
72 }
73
74 final NoSqlObject<W> entity = this.connection.createObject();
75 entity.set("level", event.getLevel());
76 entity.set("loggerName", event.getLoggerName());
77 entity.set("message", event.getMessage() == null ? null : event.getMessage().getFormattedMessage());
78
79 final StackTraceElement source = event.getSource();
80 if (source == null) {
81 entity.set("source", (Object) null);
82 } else {
83 entity.set("source", this.convertStackTraceElement(source));
84 }
85
86 final Marker marker = event.getMarker();
87 if (marker == null) {
88 entity.set("marker", (Object) null);
89 } else {
90 entity.set("marker", buildMarkerEntity(marker));
91 }
92
93 entity.set("threadId", event.getThreadId());
94 entity.set("threadName", event.getThreadName());
95 entity.set("threadPriority", event.getThreadPriority());
96 entity.set("millis", event.getTimeMillis());
97 entity.set("date", new java.util.Date(event.getTimeMillis()));
98
99 @SuppressWarnings("ThrowableResultOfMethodCallIgnored")
100 Throwable thrown = event.getThrown();
101 if (thrown == null) {
102 entity.set("thrown", (Object) null);
103 } else {
104 final NoSqlObject<W> originalExceptionEntity = this.connection.createObject();
105 NoSqlObject<W> exceptionEntity = originalExceptionEntity;
106 exceptionEntity.set("type", thrown.getClass().getName());
107 exceptionEntity.set("message", thrown.getMessage());
108 exceptionEntity.set("stackTrace", this.convertStackTrace(thrown.getStackTrace()));
109 while (thrown.getCause() != null) {
110 thrown = thrown.getCause();
111 final NoSqlObject<W> causingExceptionEntity = this.connection.createObject();
112 causingExceptionEntity.set("type", thrown.getClass().getName());
113 causingExceptionEntity.set("message", thrown.getMessage());
114 causingExceptionEntity.set("stackTrace", this.convertStackTrace(thrown.getStackTrace()));
115 exceptionEntity.set("cause", causingExceptionEntity);
116 exceptionEntity = causingExceptionEntity;
117 }
118
119 entity.set("thrown", originalExceptionEntity);
120 }
121
122 final Map<String, String> contextMap = event.getContextMap();
123 if (contextMap == null) {
124 entity.set("contextMap", (Object) null);
125 } else {
126 final NoSqlObject<W> contextMapEntity = this.connection.createObject();
127 for (final Map.Entry<String, String> entry : contextMap.entrySet()) {
128 contextMapEntity.set(entry.getKey(), entry.getValue());
129 }
130 entity.set("contextMap", contextMapEntity);
131 }
132
133 final ThreadContext.ContextStack contextStack = event.getContextStack();
134 if (contextStack == null) {
135 entity.set("contextStack", (Object) null);
136 } else {
137 entity.set("contextStack", contextStack.asList().toArray());
138 }
139
140 this.connection.insertObject(entity);
141 }
142
143 private NoSqlObject<W> buildMarkerEntity(final Marker marker) {
144 final NoSqlObject<W> entity = this.connection.createObject();
145 entity.set("name", marker.getName());
146
147 final Marker[] parents = marker.getParents();
148 if (parents != null) {
149 @SuppressWarnings("unchecked")
150 final NoSqlObject<W>[] parentEntities = new NoSqlObject[parents.length];
151 for (int i = 0; i < parents.length; i++) {
152 parentEntities[i] = buildMarkerEntity(parents[i]);
153 }
154 entity.set("parents", parentEntities);
155 }
156 return entity;
157 }
158
159 @Override
160 protected void commitAndClose() {
161
162
163
164
165 }
166
167 private NoSqlObject<W>[] convertStackTrace(final StackTraceElement[] stackTrace) {
168 final NoSqlObject<W>[] stackTraceEntities = this.connection.createList(stackTrace.length);
169 for (int i = 0; i < stackTrace.length; i++) {
170 stackTraceEntities[i] = this.convertStackTraceElement(stackTrace[i]);
171 }
172 return stackTraceEntities;
173 }
174
175 private NoSqlObject<W> convertStackTraceElement(final StackTraceElement element) {
176 final NoSqlObject<W> elementEntity = this.connection.createObject();
177 elementEntity.set("className", element.getClassName());
178 elementEntity.set("methodName", element.getMethodName());
179 elementEntity.set("fileName", element.getFileName());
180 elementEntity.set("lineNumber", element.getLineNumber());
181 return elementEntity;
182 }
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192 public static NoSqlDatabaseManager<?> getNoSqlDatabaseManager(final String name, final int bufferSize,
193 final NoSqlProvider<?> provider) {
194 return AbstractDatabaseManager.getManager(name, new FactoryData(bufferSize, provider), FACTORY);
195 }
196
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198
199
200 private static final class FactoryData extends AbstractDatabaseManager.AbstractFactoryData {
201 private final NoSqlProvider<?> provider;
202
203 protected FactoryData(final int bufferSize, final NoSqlProvider<?> provider) {
204 super(bufferSize);
205 this.provider = provider;
206 }
207 }
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211
212 private static final class NoSQLDatabaseManagerFactory implements
213 ManagerFactory<NoSqlDatabaseManager<?>, FactoryData> {
214 @Override
215 @SuppressWarnings("unchecked")
216 public NoSqlDatabaseManager<?> createManager(final String name, final FactoryData data) {
217 return new NoSqlDatabaseManager(name, data.getBufferSize(), data.provider);
218 }
219 }
220 }