restructuring into packages.

[utils] / crawler / kiss / src / org / wamblee / crawler / kiss / guide / MatchVisitor.java

diff --git a/crawler/kiss/src/org/wamblee/crawler/kiss/guide/MatchVisitor.java b/crawler/kiss/src/org/wamblee/crawler/kiss/guide/MatchVisitor.java
new file mode 100644 (file)
index 0000000..e8138ed
--- /dev/null
+++ b/crawler/kiss/src/org/wamblee/crawler/kiss/guide/MatchVisitor.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2005 the original author or authors.
+ * 
+ * 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.
+ */
+
+package org.wamblee.crawler.kiss.guide;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.wamblee.conditions.Condition;
+
+/**
+ * Visitor which determines the interesting programs in the TV guide. 
+ */
+public class MatchVisitor extends AbstractVisitor {
+
+    /**
+     * Criterion that determines which programs are interesting. 
+     */
+    private Condition<Program> _matcher;
+
+    /**
+     * List of interesting programs. 
+     */
+    private List<Program> _programs;
+
+    /**
+     * Constructs the visitor. 
+     * @param aMatcher Condition describing interesting programs. 
+     */
+    public MatchVisitor(Condition<Program> aMatcher) {
+        _matcher = aMatcher;
+        _programs = new ArrayList<Program>();
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.wamblee.crawler.kiss.Visitor#visitProgram(org.wamblee.crawler.kiss.Program)
+     */
+    public void visitProgram(Program aProgram) {
+        if (_matcher.matches(aProgram)) {
+            _programs.add(aProgram);
+        }
+    }
+
+    /**
+     * Gets the list of interesting programs. To be called after applying 
+     * the visitor on a tv guide. 
+     * @return List of interesting programs. 
+     */
+    public List<Program> getMatches() {
+        return _programs;
+    }
+
+}