diff options
Diffstat (limited to 'env/src/main/java/org/onap/aaf/inno/env/LogTarget.java')
| -rw-r--r-- | env/src/main/java/org/onap/aaf/inno/env/LogTarget.java | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/env/src/main/java/org/onap/aaf/inno/env/LogTarget.java b/env/src/main/java/org/onap/aaf/inno/env/LogTarget.java new file mode 100644 index 0000000..65868ed --- /dev/null +++ b/env/src/main/java/org/onap/aaf/inno/env/LogTarget.java @@ -0,0 +1,142 @@ +/*******************************************************************************
+ * ============LICENSE_START====================================================
+ * * org.onap.aaf
+ * * ===========================================================================
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * * ===========================================================================
+ * * 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.
+ * * ============LICENSE_END====================================================
+ * *
+ * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * *
+ ******************************************************************************/
+package org.onap.aaf.inno.env;
+
+import java.io.PrintStream;
+import java.util.Date;
+
+import org.onap.aaf.inno.env.util.Chrono;
+
+/**
+ * LogTarget is the interface with which to assign any kind of Logging Implementations.
+ *
+ * Implement for any Logging Library of your choice, and for any logging string Format desired.
+ *
+ * Included are several Static Implementations for various uses:
+ * NULL: Does nothing with Logging Messages
+ * SYSOUT: Writes messages in general form to System Out
+ * SYSERR: Writes messages in general form to System Err
+ *
+ *
+ */
+public interface LogTarget {
+ public abstract void log(Object... msgs);
+ public abstract void log(Throwable e, Object ... msgs);
+ public abstract boolean isLoggable();
+ public abstract void printf(String fmt, Object ... vars);
+
+ // A Convenient LogTarget to insert when a NO-OP is desired.
+ public static final LogTarget NULL = new LogTarget() {
+ public void log(Object ... msgs) {
+ }
+
+ public void log(Throwable t, Object ... msgs) {
+ }
+
+ public boolean isLoggable() {
+ return false;
+ }
+
+ @Override
+ public void printf(String fmt, Object ... vars) {
+ }
+ };
+
+ // A Convenient LogTarget to write to the Console
+ public static final LogTarget SYSOUT = new LogTarget() {
+ public void log(Object ... msgs) {
+ PrintStream out = System.out;
+ out.print(org.onap.aaf.inno.env.util.Chrono.dateFmt.format(new Date()));
+ out.print(": ");
+ for(Object str : msgs) {
+ if(str!=null) {
+ out.print(str.toString());
+ out.print(' ');
+ } else {
+ out.print("null ");
+ }
+ }
+ out.println();
+ }
+
+ public void log(Throwable t, Object ... msgs) {
+ PrintStream out = System.out;
+ out.print(Chrono.dateFmt.format(new Date()));
+ out.print(": ");
+ for(Object str : msgs) {
+ out.print(str.toString());
+ out.print(' ');
+ }
+ out.println();
+ t.printStackTrace(out);
+ out.println();
+ }
+
+ public boolean isLoggable() {
+ return true;
+ }
+
+ @Override
+ public void printf(String fmt, Object ... vars) {
+ log(String.format(fmt,vars));
+ }
+ };
+
+ // A Convenient LogTarget to write to the Console
+ public static final LogTarget SYSERR = new LogTarget() {
+ public void log(Object ... msgs) {
+ PrintStream out = System.err;
+ out.print(Chrono.dateFmt.format(new Date()));
+ out.print(": ");
+ for(Object str : msgs) {
+ out.print(str.toString());
+ out.print(' ');
+ }
+ out.println();
+ out.flush();
+ }
+
+ public void log(Throwable t, Object ... msgs) {
+ PrintStream out = System.err;
+ out.print(Chrono.dateFmt.format(new Date()));
+ out.print(": ");
+ for(Object str : msgs) {
+ out.print(str.toString());
+ out.print(' ');
+ }
+ out.println();
+ t.printStackTrace(out);
+ }
+
+ public boolean isLoggable() {
+ return true;
+ }
+ @Override
+ public void printf(String fmt, Object ... vars) {
+ log(String.format(fmt,vars));
+ }
+
+ };
+
+
+};
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