pt 1 in reviving the android build (copied from pm 28a1, wish me luck)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/execchain/RetryExec.java

@@ -0,0 +1,126 @@
+/*
+ * ====================================================================
+ * 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 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.NoHttpResponseException;
+import ch.boye.httpclientandroidlib.annotation.Immutable;
+import ch.boye.httpclientandroidlib.client.HttpRequestRetryHandler;
+import ch.boye.httpclientandroidlib.client.NonRepeatableRequestException;
+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 failed due to an I/O error
+ * 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 RetryExec implements ClientExecChain {
+
+    public HttpClientAndroidLog log = new HttpClientAndroidLog(getClass());
+
+    private final ClientExecChain requestExecutor;
+    private final HttpRequestRetryHandler retryHandler;
+
+    public RetryExec(
+            final ClientExecChain requestExecutor,
+            final HttpRequestRetryHandler retryHandler) {
+        Args.notNull(requestExecutor, "HTTP request executor");
+        Args.notNull(retryHandler, "HTTP request retry handler");
+        this.requestExecutor = requestExecutor;
+        this.retryHandler = retryHandler;
+    }
+
+    public CloseableHttpResponse execute(
+            final HttpRoute route,
+            final HttpRequestWrapper request,
+            final HttpClientContext context,
+            final HttpExecutionAware execAware) throws IOException, HttpException {
+        Args.notNull(route, "HTTP route");
+        Args.notNull(request, "HTTP request");
+        Args.notNull(context, "HTTP context");
+        final Header[] origheaders = request.getAllHeaders();
+        for (int execCount = 1;; execCount++) {
+            try {
+                return this.requestExecutor.execute(route, request, context, execAware);
+            } catch (final IOException ex) {
+                if (execAware != null && execAware.isAborted()) {
+                    this.log.debug("Request has been aborted");
+                    throw ex;
+                }
+                if (retryHandler.retryRequest(ex, execCount, context)) {
+                    if (this.log.isInfoEnabled()) {
+                        this.log.info("I/O exception ("+ ex.getClass().getName() +
+                                ") caught when processing request to "
+                                + route +
+                                ": "
+                                + ex.getMessage());
+                    }
+                    if (this.log.isDebugEnabled()) {
+                        this.log.debug(ex.getMessage(), ex);
+                    }
+                    if (!RequestEntityProxy.isRepeatable(request)) {
+                        this.log.debug("Cannot retry non-repeatable request");
+                        throw new NonRepeatableRequestException("Cannot retry request " +
+                                "with a non-repeatable request entity", ex);
+                    }
+                    request.setHeaders(origheaders);
+                    if (this.log.isInfoEnabled()) {
+                        this.log.info("Retrying request to " + route);
+                    }
+                } else {
+                    if (ex instanceof NoHttpResponseException) {
+                        final NoHttpResponseException updatedex = new NoHttpResponseException(
+                                route.getTargetHost().toHostString() + " failed to respond");
+                        updatedex.setStackTrace(ex.getStackTrace());
+                        throw updatedex;
+                    } else {
+                        throw ex;
+                    }
+                }
+            }
+        }
+    }
+
+}