diff options
Diffstat (limited to 'reference/logging-slf4j-demo/src/test/java/org/onap/logging/ref/slf4j/analysis/CallGraphAnalyzer.java')
-rw-r--r-- | reference/logging-slf4j-demo/src/test/java/org/onap/logging/ref/slf4j/analysis/CallGraphAnalyzer.java | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/reference/logging-slf4j-demo/src/test/java/org/onap/logging/ref/slf4j/analysis/CallGraphAnalyzer.java b/reference/logging-slf4j-demo/src/test/java/org/onap/logging/ref/slf4j/analysis/CallGraphAnalyzer.java new file mode 100644 index 0000000..208b3e1 --- /dev/null +++ b/reference/logging-slf4j-demo/src/test/java/org/onap/logging/ref/slf4j/analysis/CallGraphAnalyzer.java @@ -0,0 +1,114 @@ +/** + * ============LICENSE_START======================================================= + * org.onap.logging + * ================================================================================ + * Copyright © 2018 Amdocs + * 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========================================================= + */ + +package org.onap.logging.ref.slf4j.analysis; + +import java.util.ArrayList; +import java.util.List; + +import org.apache.commons.lang3.StringUtils; + +/** + * Crude analyzer for log messages, to build a simple + * representation of the call graph. + */ +public class CallGraphAnalyzer { + + /** Messages of interest. */ + private List<LogEntry> mEntries = new ArrayList<>(); + + /** + * Capture entry if it's interesting. + * @param entry candidate. + * @return this. + */ + public CallGraphAnalyzer add(final LogEntry entry) { + + if (entry.getLogger().contains("ONAPLogAdapterTest")) { + return this; + } + + if (StringUtils.isNotBlank(entry.getMarkers())) { + this.mEntries.add(entry); + } + + return this; + } + + /** + * Get all captured entries, for diagnostics only. + * @return entries. + */ + public List<LogEntry> getEntries() { + return this.mEntries; + } + + /** + * Find the entry point into the call graph through the various components. + * @return entry point or (failure) null. + */ + public LogEntry findEntryPoint() { + for (final LogEntry e : this.mEntries) { + if (e.getLogger().endsWith("ComponentAlpha")) { + if ("ENTRY".equals(e.getMarkers())) { + if (StringUtils.isBlank(e.getPartnerName())) { + return e; + } + } + } + } + return null; + } + + /** + * Find entries for where a component invokes others. + * @param parent parent ENTRY (not actually the entry where it's doing the invoking). + * @return components invoked by this one. + */ + public List<LogEntry> findInvokes(final LogEntry parent) { + final List<LogEntry> invokes = new ArrayList<>(); + for (final LogEntry e : this.mEntries) { + if (StringUtils.equals(parent.getInvocationID(), e.getInvocationID())) { + final String invokingID = e.getInvokingID(); + if (StringUtils.isNotBlank(invokingID)) { + invokes.add(e); + } + } + } + return invokes; + } + + /** + * Find a specific invocation. + * @param invoke invocation record. + * @return invocation ENTRY, or (failure) null if not found. + */ + public LogEntry findInvocation(final LogEntry invoke) { + for (final LogEntry e : this.mEntries) { + if ("ENTRY".equals(e.getMarkers())) { + if (StringUtils.equals(invoke.getInvokingID(), e.getInvocationID())) { + return e; + } + } + } + return null; + } +} |