1 files changed, 203 insertions, 0 deletions
diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/client/DefaultHttpRequestRetryHandler.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/client/DefaultHttpRequestRetryHandler.java
new file mode 100644
index 000000000..1721c8e70
--- /dev/null
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/client/DefaultHttpRequestRetryHandler.java
@@ -0,0 +1,203 @@
+/*
+ * ====================================================================
+ * 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;
+
+import java.io.IOException;
+import java.io.InterruptedIOException;
+import java.net.ConnectException;
+import java.net.UnknownHostException;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.net.ssl.SSLException;
+
+import ch.boye.httpclientandroidlib.HttpEntityEnclosingRequest;
+import ch.boye.httpclientandroidlib.HttpRequest;
+import ch.boye.httpclientandroidlib.annotation.Immutable;
+import ch.boye.httpclientandroidlib.client.HttpRequestRetryHandler;
+import ch.boye.httpclientandroidlib.client.methods.HttpUriRequest;
+import ch.boye.httpclientandroidlib.client.protocol.HttpClientContext;
+import ch.boye.httpclientandroidlib.protocol.HttpContext;
+import ch.boye.httpclientandroidlib.util.Args;
+
+/**
+ * The default {@link HttpRequestRetryHandler} used by request executors.
+ *
+ * @since 4.0
+ */
+@Immutable
+public class DefaultHttpRequestRetryHandler implements HttpRequestRetryHandler {
+
+    public static final DefaultHttpRequestRetryHandler INSTANCE = new DefaultHttpRequestRetryHandler();
+
+    /** the number of times a method will be retried */
+    private final int retryCount;
+
+    /** Whether or not methods that have successfully sent their request will be retried */
+    private final boolean requestSentRetryEnabled;
+
+    private final Set<Class<? extends IOException>> nonRetriableClasses;
+
+    /**
+     * Create the request retry handler using the specified IOException classes
+     *
+     * @param retryCount how many times to retry; 0 means no retries
+     * @param requestSentRetryEnabled true if it's OK to retry requests that have been sent
+     * @param clazzes the IOException types that should not be retried
+     * @since 4.3
+     */
+    protected DefaultHttpRequestRetryHandler(
+            final int retryCount,
+            final boolean requestSentRetryEnabled,
+            final Collection<Class<? extends IOException>> clazzes) {
+        super();
+        this.retryCount = retryCount;
+        this.requestSentRetryEnabled = requestSentRetryEnabled;
+        this.nonRetriableClasses = new HashSet<Class<? extends IOException>>();
+        for (final Class<? extends IOException> clazz: clazzes) {
+            this.nonRetriableClasses.add(clazz);
+        }
+    }
+
+    /**
+     * Create the request retry handler using the following list of
+     * non-retriable IOException classes: <br>
+     * <ul>
+     * <li>InterruptedIOException</li>
+     * <li>UnknownHostException</li>
+     * <li>ConnectException</li>
+     * <li>SSLException</li>
+     * </ul>
+     * @param retryCount how many times to retry; 0 means no retries
+     * @param requestSentRetryEnabled true if it's OK to retry requests that have been sent
+     */
+    @SuppressWarnings("unchecked")
+    public DefaultHttpRequestRetryHandler(final int retryCount, final boolean requestSentRetryEnabled) {
+        this(retryCount, requestSentRetryEnabled, Arrays.asList(
+                InterruptedIOException.class,
+                UnknownHostException.class,
+                ConnectException.class,
+                SSLException.class));
+    }
+
+    /**
+     * Create the request retry handler with a retry count of 3, requestSentRetryEnabled false
+     * and using the following list of non-retriable IOException classes: <br>
+     * <ul>
+     * <li>InterruptedIOException</li>
+     * <li>UnknownHostException</li>
+     * <li>ConnectException</li>
+     * <li>SSLException</li>
+     * </ul>
+     */
+    public DefaultHttpRequestRetryHandler() {
+        this(3, false);
+    }
+    /**
+     * Used <code>retryCount</code> and <code>requestSentRetryEnabled</code> to determine
+     * if the given method should be retried.
+     */
+    public boolean retryRequest(
+            final IOException exception,
+            final int executionCount,
+            final HttpContext context) {
+        Args.notNull(exception, "Exception parameter");
+        Args.notNull(context, "HTTP context");
+        if (executionCount > this.retryCount) {
+            // Do not retry if over max retry count
+            return false;
+        }
+        if (this.nonRetriableClasses.contains(exception.getClass())) {
+            return false;
+        } else {
+            for (final Class<? extends IOException> rejectException : this.nonRetriableClasses) {
+                if (rejectException.isInstance(exception)) {
+                    return false;
+                }
+            }
+        }
+        final HttpClientContext clientContext = HttpClientContext.adapt(context);
+        final HttpRequest request = clientContext.getRequest();
+
+        if(requestIsAborted(request)){
+            return false;
+        }
+
+        if (handleAsIdempotent(request)) {
+            // Retry if the request is considered idempotent
+            return true;
+        }
+
+        if (!clientContext.isRequestSent() || this.requestSentRetryEnabled) {
+            // Retry if the request has not been sent fully or
+            // if it's OK to retry methods that have been sent
+            return true;
+        }
+        // otherwise do not retry
+        return false;
+    }
+
+    /**
+     * @return <code>true</code> if this handler will retry methods that have
+     * successfully sent their request, <code>false</code> otherwise
+     */
+    public boolean isRequestSentRetryEnabled() {
+        return requestSentRetryEnabled;
+    }
+
+    /**
+     * @return the maximum number of times a method will be retried
+     */
+    public int getRetryCount() {
+        return retryCount;
+    }
+
+    /**
+     * @since 4.2
+     */
+    protected boolean handleAsIdempotent(final HttpRequest request) {
+        return !(request instanceof HttpEntityEnclosingRequest);
+    }
+
+    /**
+     * @since 4.2
+     *
+     * @deprecated (4.3)
+     */
+    @Deprecated
+    protected boolean requestIsAborted(final HttpRequest request) {
+        HttpRequest req = request;
+        if (request instanceof RequestWrapper) { // does not forward request to original
+            req = ((RequestWrapper) request).getOriginal();
+        }
+        return (req instanceof HttpUriRequest && ((HttpUriRequest)req).isAborted());
+    }
+
+}