From 7caa5b1f1e08f99cfe4465f091f47e2966d78aa7 Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Sun, 23 Jun 2013 09:37:57 +0200
Subject: o Initial import of JDBC queue.

---
 src/main/java/io/trygvis/queue/Task.java | 117 +++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100755 src/main/java/io/trygvis/queue/Task.java

(limited to 'src/main/java/io/trygvis/queue/Task.java')

diff --git a/src/main/java/io/trygvis/queue/Task.java b/src/main/java/io/trygvis/queue/Task.java
new file mode 100755
index 0000000..8038050
--- /dev/null
+++ b/src/main/java/io/trygvis/queue/Task.java
@@ -0,0 +1,117 @@
+package io.trygvis.queue;
+
+import java.util.Date;
+import java.util.List;
+
+import static io.trygvis.queue.Task.TaskState.*;
+import static java.util.Arrays.asList;
+
+public class Task {
+
+    public enum TaskState {
+        NEW,
+        PROCESSING,
+        OK,
+        FAILED
+    }
+
+    private final long id;
+
+    public final Long parent;
+
+    public final String queue;
+
+    public final TaskState state;
+
+    public final Date scheduled;
+
+    public final Date lastRun;
+
+    public final int runCount;
+
+    public final Date completed;
+
+    public final List<String> arguments;
+
+    public Task(long id, Long parent, String queue, TaskState state, Date scheduled, Date lastRun, int runCount, Date completed, List<String> arguments) {
+        this.id = id;
+        this.parent = parent;
+        this.queue = queue;
+        this.state = state;
+        this.scheduled = scheduled;
+        this.lastRun = lastRun;
+        this.runCount = runCount;
+        this.completed = completed;
+
+        this.arguments = arguments;
+    }
+
+    public Task markProcessing() {
+        return new Task(id, parent, queue, PROCESSING, scheduled, new Date(), runCount + 1, completed, arguments);
+    }
+
+    public Task markOk(Date completed) {
+        return new Task(id, parent, queue, OK, scheduled, lastRun, runCount, completed, arguments);
+    }
+
+    public Task markFailed(Date now) {
+        return new Task(id, parent, queue, FAILED, scheduled, lastRun, runCount, completed, arguments);
+    }
+
+    public String toString() {
+        return "Task{" +
+                "id=" + id +
+                ", parent=" + parent +
+                ", queue=" + queue +
+                ", state=" + state +
+                ", scheduled=" + scheduled +
+                ", lastRun=" + lastRun +
+                ", runCount=" + runCount +
+                ", completed=" + completed +
+                ", arguments='" + arguments + '\'' +
+                '}';
+    }
+
+    public long id() {
+        if (id == 0) {
+            throw new RuntimeException("This task has not been persisted yet.");
+        }
+
+        return id;
+    }
+
+    public boolean isDone() {
+        return completed != null;
+    }
+
+    public Task childTask(String queue, Date scheduled, String... arguments) {
+        return new Task(0, id(), queue, NEW, scheduled, null, 0, null, asList(arguments));
+    }
+
+    public static Task newTask(String queue, Date scheduled, String... arguments) {
+        return new Task(0, null, queue, NEW, scheduled, null, 0, null, asList(arguments));
+    }
+
+    public static Task newTask(String queue, Date scheduled, List<String> arguments) {
+        return new Task(0, null, queue, NEW, scheduled, null, 0, null, arguments);
+    }
+
+    public static List<String> stringToArguments(String arguments) {
+        return asList(arguments.split(","));
+    }
+
+    public static String argumentsToString(List<String> arguments) {
+        StringBuilder builder = new StringBuilder();
+        for (int i = 0, argumentsLength = arguments.size(); i < argumentsLength; i++) {
+            String argument = arguments.get(i);
+            if (argument.contains(",")) {
+                throw new RuntimeException("The argument string can't contain a comma.");
+            }
+            if (i > 0) {
+                builder.append(',');
+            }
+            builder.append(argument);
+        }
+        return builder.toString();
+    }
+}
-- 
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