first commit

Semester 1/Programming 1/Java/examples/projects/chapter07/weblog-analyzer/LoglineTokenizer.java

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+import java.util.Scanner;
+
+/**
+ * Break up line from a web server log file into
+ * its separate fields.
+ * Currently, the log file is assumed to contain simply
+ * integer date and time information.
+ * 
+ * @author David J. Barnes and Michael Kolling.
+ * @version    2016.02.29
+ */
+public class LoglineTokenizer
+{
+    /**
+     * Construct a LogLineAnalyzer
+     */
+    public LoglineTokenizer()
+    {
+    }
+
+    /**
+     * Tokenize a log line. Place the integer values from
+     * it into an array. The number of tokens on the line
+     * must be sufficient to fill the array.
+     *
+     * @param logline The line to be tokenized.
+     * @param dataLine Where to store the values.
+     */
+    public void tokenize(String logline, int[] dataLine)
+    {
+        try {
+            // Scan the logline for integers.
+            Scanner tokenizer = new Scanner(logline);
+            for(int i = 0; i < dataLine.length; i++) {
+                dataLine[i] = tokenizer.nextInt();
+            }
+        }
+        catch(java.util.NoSuchElementException e) {
+            System.out.println("Insuffient data items on log line: " + logline);
+            throw e;
+        }
+    }
+}