1 files changed, 88 insertions, 0 deletions
diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/client/cache/ImmediateSchedulingStrategy.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/client/cache/ImmediateSchedulingStrategy.java
new file mode 100644
index 000000000..71d633825
--- /dev/null
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/client/cache/ImmediateSchedulingStrategy.java
@@ -0,0 +1,88 @@
+/*
+ * ====================================================================
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ */
+package ch.boye.httpclientandroidlib.impl.client.cache;
+
+import ch.boye.httpclientandroidlib.annotation.ThreadSafe;
+
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Immediately schedules any incoming validation request. Relies on
+ * {@link CacheConfig} to configure the used {@link java.util.concurrent.ThreadPoolExecutor}.
+ *
+ * @since 4.3
+ */
+@ThreadSafe
+public class ImmediateSchedulingStrategy implements SchedulingStrategy {
+
+    private final ExecutorService executor;
+
+    /**
+     * Uses a {@link java.util.concurrent.ThreadPoolExecutor} which is configured according to the
+     * given {@link CacheConfig}.
+     * @param cacheConfig specifies thread pool settings. See
+     * {@link CacheConfig#getAsynchronousWorkersMax()},
+     * {@link CacheConfig#getAsynchronousWorkersCore()},
+     * {@link CacheConfig#getAsynchronousWorkerIdleLifetimeSecs()},
+     * and {@link CacheConfig#getRevalidationQueueSize()}.
+     */
+    public ImmediateSchedulingStrategy(final CacheConfig cacheConfig) {
+        this(new ThreadPoolExecutor(
+                cacheConfig.getAsynchronousWorkersCore(),
+                cacheConfig.getAsynchronousWorkersMax(),
+                cacheConfig.getAsynchronousWorkerIdleLifetimeSecs(),
+                TimeUnit.SECONDS,
+                new ArrayBlockingQueue<Runnable>(cacheConfig.getRevalidationQueueSize()))
+        );
+    }
+
+    ImmediateSchedulingStrategy(final ExecutorService executor) {
+        this.executor = executor;
+    }
+
+    public void schedule(final AsynchronousValidationRequest revalidationRequest) {
+        if (revalidationRequest == null) {
+            throw new IllegalArgumentException("AsynchronousValidationRequest may not be null");
+        }
+
+        executor.execute(revalidationRequest);
+    }
+
+    public void close() {
+        executor.shutdown();
+    }
+
+    /**
+     * Visible for testing.
+     */
+    void awaitTermination(final long timeout, final TimeUnit unit) throws InterruptedException {
+        executor.awaitTermination(timeout, unit);
+    }
+}