matchers for keywords

core/src/main/groovy/com/muwire/core/content/KeywordMatcher.groovy

@@ -0,0 +1,17 @@
+package com.muwire.core.content
+
+class KeywordMatcher extends Matcher {
+    private final String keyword
+    KeywordMatcher(String keyword) {
+        this.keyword = keyword
+    }
+    
+    @Override
+    protected boolean match(String[] searchTerms) {
+        searchTerms.each { 
+            if (keyword == it)
+                return true
+        }
+        false
+    }
+}

core/src/main/groovy/com/muwire/core/content/Match.groovy

@@ -0,0 +1,9 @@
+package com.muwire.core.content
+
+import com.muwire.core.Persona
+
+class Match {
+    Persona persona
+    String [] keywords
+    long timestamp
+}

core/src/main/groovy/com/muwire/core/content/Matcher.groovy

@@ -0,0 +1,19 @@
+package com.muwire.core.content
+
+import com.muwire.core.search.QueryEvent
+
+abstract class Matcher {
+    final Match [] matches = Collections.synchronizedList(new ArrayList<>())
+    
+    protected abstract boolean match(String []searchTerms);
+    
+    public void process(QueryEvent qe) {
+        def terms = qe.searchEvent.searchTerms
+        if (terms == null)
+            return
+        if (match(terms)) {
+            long now = System.currentTimeMillis()
+            matches << new Match(persona : qe.originator, keywords : terms, timestamp : now)
+        }
+    }
+}

core/src/main/groovy/com/muwire/core/content/RegexMatcher.groovy

@@ -0,0 +1,17 @@
+package com.muwire.core.content
+
+import java.util.regex.Pattern
+import java.util.stream.Collectors
+
+class RegexMatcher extends Matcher {
+    private final Pattern pattern
+    RegexMatcher(String pattern) {
+        this.pattern = Pattern.compile(pattern)
+    }
+    
+    @Override
+    protected boolean match(String[] keywords) {
+        String combined = keywords.join(" ")
+        return pattern.matcher(combined).find()
+    }
+}