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

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/IdentityInputStream.java

@@ -0,0 +1,99 @@
+/*
+ * ====================================================================
+ * 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.io;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import ch.boye.httpclientandroidlib.annotation.NotThreadSafe;
+import ch.boye.httpclientandroidlib.io.BufferInfo;
+import ch.boye.httpclientandroidlib.io.SessionInputBuffer;
+import ch.boye.httpclientandroidlib.util.Args;
+
+/**
+ * Input stream that reads data without any transformation. The end of the
+ * content entity is demarcated by closing the underlying connection
+ * (EOF condition). Entities transferred using this input stream can be of
+ * unlimited length.
+ * <p>
+ * Note that this class NEVER closes the underlying stream, even when close
+ * gets called.  Instead, it will read until the end of the stream (until
+ * <code>-1</code> is returned).
+ *
+ * @since 4.0
+ */
+@NotThreadSafe
+public class IdentityInputStream extends InputStream {
+
+    private final SessionInputBuffer in;
+
+    private boolean closed = false;
+
+    /**
+     * Wraps session input stream and reads input until the the end of stream.
+     *
+     * @param in The session input buffer
+     */
+    public IdentityInputStream(final SessionInputBuffer in) {
+        super();
+        this.in = Args.notNull(in, "Session input buffer");
+    }
+
+    @Override
+    public int available() throws IOException {
+        if (this.in instanceof BufferInfo) {
+            return ((BufferInfo) this.in).length();
+        } else {
+            return 0;
+        }
+    }
+
+    @Override
+    public void close() throws IOException {
+        this.closed = true;
+    }
+
+    @Override
+    public int read() throws IOException {
+        if (this.closed) {
+            return -1;
+        } else {
+            return this.in.read();
+        }
+    }
+
+    @Override
+    public int read(final byte[] b, final int off, final int len) throws IOException {
+        if (this.closed) {
+            return -1;
+        } else {
+            return this.in.read(b, off, len);
+        }
+    }
+
+}