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

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

@@ -0,0 +1,153 @@
+/*
+ * ====================================================================
+ * 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.Closeable;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+
+import ch.boye.httpclientandroidlib.androidextra.HttpClientAndroidLog;
+import ch.boye.httpclientandroidlib.HttpClientConnection;
+import ch.boye.httpclientandroidlib.annotation.ThreadSafe;
+import ch.boye.httpclientandroidlib.concurrent.Cancellable;
+import ch.boye.httpclientandroidlib.conn.ConnectionReleaseTrigger;
+import ch.boye.httpclientandroidlib.conn.HttpClientConnectionManager;
+
+/**
+ * Internal connection holder.
+ *
+ * @since 4.3
+ */
+@ThreadSafe
+class ConnectionHolder implements ConnectionReleaseTrigger, Cancellable, Closeable {
+
+    public HttpClientAndroidLog log;
+
+    private final HttpClientConnectionManager manager;
+    private final HttpClientConnection managedConn;
+    private volatile boolean reusable;
+    private volatile Object state;
+    private volatile long validDuration;
+    private volatile TimeUnit tunit;
+
+    private volatile boolean released;
+
+    public ConnectionHolder(
+            final HttpClientAndroidLog log,
+            final HttpClientConnectionManager manager,
+            final HttpClientConnection managedConn) {
+        super();
+        this.log = log;
+        this.manager = manager;
+        this.managedConn = managedConn;
+    }
+
+    public boolean isReusable() {
+        return this.reusable;
+    }
+
+    public void markReusable() {
+        this.reusable = true;
+    }
+
+    public void markNonReusable() {
+        this.reusable = false;
+    }
+
+    public void setState(final Object state) {
+        this.state = state;
+    }
+
+    public void setValidFor(final long duration, final TimeUnit tunit) {
+        synchronized (this.managedConn) {
+            this.validDuration = duration;
+            this.tunit = tunit;
+        }
+    }
+
+    public void releaseConnection() {
+        synchronized (this.managedConn) {
+            if (this.released) {
+                return;
+            }
+            this.released = true;
+            if (this.reusable) {
+                this.manager.releaseConnection(this.managedConn,
+                        this.state, this.validDuration, this.tunit);
+            } else {
+                try {
+                    this.managedConn.close();
+                    log.debug("Connection discarded");
+                } catch (final IOException ex) {
+                    if (this.log.isDebugEnabled()) {
+                        this.log.debug(ex.getMessage(), ex);
+                    }
+                } finally {
+                    this.manager.releaseConnection(
+                            this.managedConn, null, 0, TimeUnit.MILLISECONDS);
+                }
+            }
+        }
+    }
+
+    public void abortConnection() {
+        synchronized (this.managedConn) {
+            if (this.released) {
+                return;
+            }
+            this.released = true;
+            try {
+                this.managedConn.shutdown();
+                log.debug("Connection discarded");
+            } catch (final IOException ex) {
+                if (this.log.isDebugEnabled()) {
+                    this.log.debug(ex.getMessage(), ex);
+                }
+            } finally {
+                this.manager.releaseConnection(
+                        this.managedConn, null, 0, TimeUnit.MILLISECONDS);
+            }
+        }
+    }
+
+    public boolean cancel() {
+        final boolean alreadyReleased = this.released;
+        log.debug("Cancelling request execution");
+        abortConnection();
+        return !alreadyReleased;
+    }
+
+    public boolean isReleased() {
+        return this.released;
+    }
+
+    public void close() throws IOException {
+        abortConnection();
+    }
+
+}