Move all sources to 'src/'

[lttng-ust.git] / liblttng-ust-java-agent / java / lttng-ust-agent-common / org / lttng / ust / agent / EventNamePattern.java

diff --git a/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/EventNamePattern.java b/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/EventNamePattern.java
deleted file mode 100644 (file)
index ada5c95..0000000
--- a/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/EventNamePattern.java
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * SPDX-License-Identifier: LGPL-2.1-only
- *
- * Copyright (C) 2017 EfficiOS Inc.
- * Copyright (C) 2017 Philippe Proulx <pproulx@efficios.com>
- */
-
-package org.lttng.ust.agent;
-
-import java.util.regex.Pattern;
-
-/**
- * Class encapsulating an event name from the session daemon, and its
- * corresponding {@link Pattern}. This allows referring back to the original
- * event name, for example when we receive a disable command.
- *
- * @author Philippe Proulx
- * @author Alexandre Montplaisir
- */
-class EventNamePattern {
-
-       private final String originalEventName;
-
-       /*
-        * Note that two Patterns coming from the exact same String will not be
-        * equals()! As such, it would be confusing to make the pattern part of this
-        * class's equals/hashCode
-        */
-       private final transient Pattern pattern;
-
-       public EventNamePattern(String eventName) {
-               if (eventName == null) {
-                       throw new IllegalArgumentException();
-               }
-
-               originalEventName = eventName;
-               pattern = patternFromEventName(eventName);
-       }
-
-       public String getEventName() {
-               return originalEventName;
-       }
-
-       public Pattern getPattern() {
-               return pattern;
-       }
-
-       @Override
-       public int hashCode() {
-               final int prime = 31;
-               int result = 1;
-               result = prime * result + originalEventName.hashCode();
-               return result;
-       }
-
-       @Override
-       public boolean equals(Object obj) {
-               if (this == obj) {
-                       return true;
-               }
-               if (obj == null) {
-                       return false;
-               }
-               if (getClass() != obj.getClass()) {
-                       return false;
-               }
-               EventNamePattern other = (EventNamePattern) obj;
-               if (!originalEventName.equals(other.originalEventName)) {
-                       return false;
-               }
-               return true;
-       }
-
-       private static Pattern patternFromEventName(String eventName) {
-               /*
-                * The situation here is that `\*` means a literal `*` in the event
-                * name, and `*` is a wildcard star. We check the event name one
-                * character at a time and create a list of tokens to be converter to
-                * partial patterns.
-                */
-               StringBuilder bigBuilder = new StringBuilder("^");
-               StringBuilder smallBuilder = new StringBuilder();
-
-               for (int i = 0; i < eventName.length(); i++) {
-                       char c = eventName.charAt(i);
-
-                       switch (c) {
-                       case '*':
-                               /* Add current quoted builder's string if not empty. */
-                               if (smallBuilder.length() > 0) {
-                                       bigBuilder.append(Pattern.quote(smallBuilder.toString()));
-                                       smallBuilder.setLength(0);
-                               }
-
-                               /* Append the equivalent regex which is `.*`. */
-                               bigBuilder.append(".*");
-                               continue;
-
-                       case '\\':
-                               /* We only escape `*` and `\` here. */
-                               if (i < (eventName.length() - 1)) {
-                                       char nextChar = eventName.charAt(i + 1);
-
-                                       if (nextChar == '*' || nextChar == '\\') {
-                                               smallBuilder.append(nextChar);
-                                       } else {
-                                               smallBuilder.append(c);
-                                               smallBuilder.append(nextChar);
-                                       }
-
-                                       i++;
-                                       continue;
-                               }
-                               break;
-
-                       default:
-                               break;
-                       }
-
-                       smallBuilder.append(c);
-               }
-
-               /* Add current quoted builder's string if not empty. */
-               if (smallBuilder.length() > 0) {
-                       bigBuilder.append(Pattern.quote(smallBuilder.toString()));
-               }
-
-               bigBuilder.append("$");
-
-               return Pattern.compile(bigBuilder.toString());
-       }
-}