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all the blurst monkeys at work

Allison Ziegler пре 6 година
родитељ
комит
de577fbca6

+ 17
- 0
src/main/java/io/zipcoder/MonkeyTypewriter.java Прегледај датотеку

@@ -23,6 +23,19 @@ public class MonkeyTypewriter {
23 23
         // Do all of the Monkey / Thread building here
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         // For each Copier(one safe and one unsafe), create and start 5 monkeys copying the introduction to
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         // A Tale Of Two Cities.
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+        UnsafeCopier dangerWillRobinson = new UnsafeCopier(introduction);
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+        new Thread(dangerWillRobinson).start();
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+        new Thread(dangerWillRobinson).start();
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+        new Thread(dangerWillRobinson).start();
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+        new Thread(dangerWillRobinson).start();
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+        new Thread(dangerWillRobinson).start();
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+
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+        SafeCopier safetyFirst = new SafeCopier(introduction);
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+        new Thread(safetyFirst).start();
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+        new Thread(safetyFirst).start();
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+        new Thread(safetyFirst).start();
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+        new Thread(safetyFirst).start();
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+        new Thread(safetyFirst).start();
26 39
 
27 40
 
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         // This wait is here because main is still a thread and we want the main method to print the finished copies
@@ -34,5 +47,9 @@ public class MonkeyTypewriter {
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         }
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         // Print out the copied versions here.
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+        System.out.println("Unsafe Copier: ");
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+        System.out.println(dangerWillRobinson.copied);
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+        System.out.println("Safe Copier: ");
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+        System.out.println(safetyFirst.copied);
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     }
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 }

+ 25
- 1
src/main/java/io/zipcoder/SafeCopier.java Прегледај датотеку

@@ -1,8 +1,32 @@
1 1
 package io.zipcoder;
2 2
 
3
+import java.util.concurrent.locks.ReadWriteLock;
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+import java.util.concurrent.locks.ReentrantReadWriteLock;
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+
3 6
 /**
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  * Make this extend the Copier like `UnsafeCopier`, except use locks to make sure that the actual intro gets printed
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  * correctly every time.  Make the run method thread safe.
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  */
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-public class SafeCopier {
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+public class SafeCopier extends Copier {
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+
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+    ReadWriteLock alohomora;
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+
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+    public SafeCopier(String toCopy) {
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+        super(toCopy);
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+    }
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+
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+    public void run() {
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+        alohomora = new ReentrantReadWriteLock();
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+        alohomora.writeLock().lock();
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+        alohomora.readLock().lock();
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+        try {
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+            while (stringIterator.hasNext()) {
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+                copied += stringIterator.next() + " ";
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+            }
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+        } finally {
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+            alohomora.writeLock().unlock();
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+            alohomora.readLock().unlock();
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+        }
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+    }
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+
8 32
 }

+ 3
- 0
src/main/java/io/zipcoder/UnsafeCopier.java Прегледај датотеку

@@ -10,5 +10,8 @@ public class UnsafeCopier extends Copier {
10 10
     }
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     public void run() {
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+        while (stringIterator.hasNext()) {
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+            copied += stringIterator.next() + " ";
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+        }
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     }
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 }