1 files changed, 108 insertions, 0 deletions
diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/execchain/ServiceUnavailableRetryExec.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/execchain/ServiceUnavailableRetryExec.java
new file mode 100644
index 000000000..1382d998a
--- /dev/null
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/execchain/ServiceUnavailableRetryExec.java
@@ -0,0 +1,108 @@
+/*
+ * ====================================================================
+ * 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.execchain;
+
+import java.io.IOException;
+import java.io.InterruptedIOException;
+
+import ch.boye.httpclientandroidlib.androidextra.HttpClientAndroidLog;
+/* LogFactory removed by HttpClient for Android script. */
+import ch.boye.httpclientandroidlib.Header;
+import ch.boye.httpclientandroidlib.HttpException;
+import ch.boye.httpclientandroidlib.annotation.Immutable;
+import ch.boye.httpclientandroidlib.client.ServiceUnavailableRetryStrategy;
+import ch.boye.httpclientandroidlib.client.methods.CloseableHttpResponse;
+import ch.boye.httpclientandroidlib.client.methods.HttpExecutionAware;
+import ch.boye.httpclientandroidlib.client.methods.HttpRequestWrapper;
+import ch.boye.httpclientandroidlib.client.protocol.HttpClientContext;
+import ch.boye.httpclientandroidlib.conn.routing.HttpRoute;
+import ch.boye.httpclientandroidlib.util.Args;
+
+/**
+ * Request executor in the request execution chain that is responsible
+ * for making a decision whether a request that received a non-2xx response
+ * from the target server should be re-executed.
+ * <p/>
+ * Further responsibilities such as communication with the opposite
+ * endpoint is delegated to the next executor in the request execution
+ * chain.
+ *
+ * @since 4.3
+ */
+@Immutable
+public class ServiceUnavailableRetryExec implements ClientExecChain {
+
+    public HttpClientAndroidLog log = new HttpClientAndroidLog(getClass());
+
+    private final ClientExecChain requestExecutor;
+    private final ServiceUnavailableRetryStrategy retryStrategy;
+
+    public ServiceUnavailableRetryExec(
+            final ClientExecChain requestExecutor,
+            final ServiceUnavailableRetryStrategy retryStrategy) {
+        super();
+        Args.notNull(requestExecutor, "HTTP request executor");
+        Args.notNull(retryStrategy, "Retry strategy");
+        this.requestExecutor = requestExecutor;
+        this.retryStrategy = retryStrategy;
+    }
+
+    public CloseableHttpResponse execute(
+            final HttpRoute route,
+            final HttpRequestWrapper request,
+            final HttpClientContext context,
+            final HttpExecutionAware execAware) throws IOException, HttpException {
+        final Header[] origheaders = request.getAllHeaders();
+        for (int c = 1;; c++) {
+            final CloseableHttpResponse response = this.requestExecutor.execute(
+                    route, request, context, execAware);
+            try {
+                if (this.retryStrategy.retryRequest(response, c, context)) {
+                    response.close();
+                    final long nextInterval = this.retryStrategy.getRetryInterval();
+                    if (nextInterval > 0) {
+                        try {
+                            this.log.trace("Wait for " + nextInterval);
+                            Thread.sleep(nextInterval);
+                        } catch (final InterruptedException e) {
+                            Thread.currentThread().interrupt();
+                            throw new InterruptedIOException();
+                        }
+                    }
+                    request.setHeaders(origheaders);
+                } else {
+                    return response;
+                }
+            } catch (final RuntimeException ex) {
+                response.close();
+                throw ex;
+            }
+        }
+    }
+
+}