Initial 1.0.0 commit (library extracted from existing project).

src/console-log-appender.ts

@@ -0,0 +1,55 @@
+/*tslint:disable:no-console*/
+import { LogMessage, LogLevel } from './log-message';
+import LogAppender from './log-appender';
+
+export class ConsoleLogAppender implements LogAppender {
+  public threshold = LogLevel.ALL;
+
+  constructor(threshold?: LogLevel) {
+    if (threshold) {
+      this.threshold = threshold;
+    }
+  }
+
+  public appendMessage(msg: LogMessage): void {
+    if (this.threshold && msg.level < this.threshold) {
+      return;
+    }
+
+    let logMethod = console.log;
+    switch (msg.level) {
+      case LogLevel.ALL:
+        logMethod = console.log;
+        break;
+      case LogLevel.TRACE:
+        logMethod = console.log;
+        break;
+      case LogLevel.DEBUG:
+        logMethod = console.debug;
+        break;
+      case LogLevel.LOG:
+        logMethod = console.log;
+        break;
+      case LogLevel.INFO:
+        logMethod = console.info;
+        break;
+      case LogLevel.WARN:
+        logMethod = console.warn;
+        break;
+      case LogLevel.ERROR:
+      case LogLevel.FATAL:
+        logMethod = console.trace;
+        break;
+    }
+
+    if (msg.error) {
+      logMethod(`[${msg.scope}]:`, msg.message, msg.error);
+    } else if (msg.stacktrace) {
+      logMethod(`[${msg.scope}]:`, msg.message, msg.stacktrace);
+    } else {
+      logMethod(`[${msg.scope}]:`, msg.message);
+    }
+  }
+}
+
+export default ConsoleLogAppender;