diff options
author | Arul.Nambi <arul.nambi@amdocs.com> | 2017-09-14 15:30:00 -0400 |
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committer | Arul.Nambi <arul.nambi@amdocs.com> | 2017-09-14 15:30:51 -0400 |
commit | 2d211f3e1943ded3a0ab59553b12bee602079398 (patch) | |
tree | cbc3fc4ba4a463b94d4532b8641199d8bcf9e79f /eelf-logging/src/main/java/org/onap/aai/cl/eelf/LoggerFactory.java | |
parent | c8ed19f31ae454dab4cd9ce59886a3578b24f58b (diff) |
Renaming openecomp to onap
Issue-ID: AAI-208
Change-Id: I11d428593971c665f0ebdf56465d87161ef7d112
Signed-off-by: Arul.Nambi <arul.nambi@amdocs.com>
Diffstat (limited to 'eelf-logging/src/main/java/org/onap/aai/cl/eelf/LoggerFactory.java')
-rw-r--r-- | eelf-logging/src/main/java/org/onap/aai/cl/eelf/LoggerFactory.java | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/eelf-logging/src/main/java/org/onap/aai/cl/eelf/LoggerFactory.java b/eelf-logging/src/main/java/org/onap/aai/cl/eelf/LoggerFactory.java new file mode 100644 index 0000000..26a8e4e --- /dev/null +++ b/eelf-logging/src/main/java/org/onap/aai/cl/eelf/LoggerFactory.java @@ -0,0 +1,179 @@ +/** + * ============LICENSE_START======================================================= + * org.onap.aai + * ================================================================================ + * Copyright © 2017 AT&T Intellectual Property. All rights reserved. + * Copyright © 2017 Amdocs + * ================================================================================ + * 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.aai.cl.eelf; + +import com.att.eelf.configuration.EELFManager; + +import java.util.HashMap; +import java.util.Map; + +import org.onap.aai.cl.api.Logger; +import org.onap.aai.cl.api.LoggerFactoryInterface; +import org.onap.aai.cl.api.LogLine.LogLineType; + +/** This is an implementation of the {@link LoggerFactoryInterface} which + * constructs a {@link Logger} implementation which is compatible with the EELF + * framework. */ +public class LoggerFactory implements LoggerFactoryInterface { + + /** The instance for our factory singleton. */ + private static LoggerFactory instance; + + /** An instance of the log factory provided by the EELF framework. We will use + * this to get an actual EELF logger instance that we will wrap within our + * own, more generalized logger. */ + private EELFManager eelfManager; + + /** This cache maintains a mapping of logger names to instances so that if a + * logger with the same name is requested multiple times we can return the + * same instance each time. */ + private Map<String, Logger> errorLoggerCache = new HashMap<String, Logger>(); + + /** This cache maintains a mapping of metric logger names to instances so that + * if a logger with the same name is requested multiple times we can return + * the same instance each time. */ + private Map<String, Logger> metricLoggerCache = new HashMap<String, Logger>(); + + /** This cache maintains a mapping of audit logger names to instances so that + * if a logger with the same name is requested multiple times we can return + * the same instance each time. */ + private Map<String, Logger> auditLoggerCache = new HashMap<String, Logger>(); + + /** Returns the single instance of our factory singleton. + * + * @return - An instance of the {@link LoggerFactory} */ + public static synchronized LoggerFactory getInstance() { + + // If we don't already have an instance then create it now. + if (instance == null) { + instance = new LoggerFactory(); + } + + // Return our singleton instance. + return instance; + } + + /** + * Instantiates a new {@link LoggerFactory}. + */ + protected LoggerFactory() { + + // We need an instance of the factory provided by the EELF + // framework so that we can instantiate the EELF logger that + // we will be wrapping, so get one now. + if (eelfManager == null) { + eelfManager = EELFManager.getInstance(); + } + } + + /** + * (non-Javadoc) + * + * @see org.ecomp.cl.api.LoggerFactoryInterface#getLogger(java.lang.String) + */ + public Logger getLogger(String name) { + + // Check the cache to see if we have already instantiated a logger + // with the supplied name. + if (!errorLoggerCache.containsKey(name)) { + + // Nothing in the cache, so let's instantiate a logger now. + Logger logger = new AaiLoggerAdapter(eelfManager.getLogger(name), LogLineType.ERROR, name); + errorLoggerCache.put(name, logger); + } + + // Return the requested logger instance. + return errorLoggerCache.get(name); + } + + /** + * (non-Javadoc) + * + * @see org.ecomp.cl.api.LoggerFactoryInterface#getLogger(java.lang.Class) + */ + public Logger getLogger(Class<?> clazz) { + + return getLogger(clazz.getName()); + } + + /** + * (non-Javadoc) + * + * @see org.ecomp.cl.api.LoggerFactoryInterface#getAuditLogger(java.lang.String) + */ + public Logger getAuditLogger(String name) { + + // Check the cache to see if we have already instantiated a logger + // with the supplied name. + if (!auditLoggerCache.containsKey(name)) { + + // Nothing in the cache, so let's instantiate a logger now. + Logger logger = new AaiLoggerAdapter(eelfManager.getAuditLogger(), LogLineType.AUDIT, name); + auditLoggerCache.put(name, logger); + } + + // Return the requested logger instance. + return auditLoggerCache.get(name); + } + + /** + * (non-Javadoc) + * + * @see org.ecomp.cl.api.LoggerFactoryInterface#getAuditLogger(java.lang.Class) + */ + public Logger getAuditLogger(Class<?> clazz) { + + return getAuditLogger(clazz.getName()); + } + + /** + * (non-Javadoc) + * + * @see org.ecomp.cl.api.LoggerFactoryInterface#getMetricsLogger(java.lang.String) + */ + public Logger getMetricsLogger(String name) { + + // Check the cache to see if we have already instantiated a logger + // with the supplied name. + if (!metricLoggerCache.containsKey(name)) { + + // Nothing in the cache, so let's instantiate a logger now. + Logger logger = new AaiLoggerAdapter(eelfManager.getMetricsLogger(), LogLineType.METRICS, + name); + metricLoggerCache.put(name, logger); + } + + // Return the requested logger instance. + return metricLoggerCache.get(name); + } + + /** + * (non-Javadoc) + * + * @see org.ecomp.cl.api.LoggerFactoryInterface#getMetricsLogger(java.lang.Class) + */ + public Logger getMetricsLogger(Class<?> clazz) { + + return getMetricsLogger(clazz.getName()); + } +} |