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

mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/entity/DecompressingEntity.java

@@ -0,0 +1,105 @@
+/*
+ * ====================================================================
+ * 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.client.entity;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import ch.boye.httpclientandroidlib.HttpEntity;
+import ch.boye.httpclientandroidlib.entity.HttpEntityWrapper;
+import ch.boye.httpclientandroidlib.util.Args;
+
+/**
+ * Common base class for decompressing {@link HttpEntity} implementations.
+ *
+ * @since 4.1
+ */
+abstract class DecompressingEntity extends HttpEntityWrapper {
+
+    /**
+     * Default buffer size.
+     */
+    private static final int BUFFER_SIZE = 1024 * 2;
+
+    /**
+     * {@link #getContent()} method must return the same {@link InputStream}
+     * instance when DecompressingEntity is wrapping a streaming entity.
+     */
+    private InputStream content;
+
+    /**
+     * Creates a new {@link DecompressingEntity}.
+     *
+     * @param wrapped
+     *            the non-null {@link HttpEntity} to be wrapped
+     */
+    public DecompressingEntity(final HttpEntity wrapped) {
+        super(wrapped);
+    }
+
+    abstract InputStream decorate(final InputStream wrapped) throws IOException;
+
+    private InputStream getDecompressingStream() throws IOException {
+        final InputStream in = wrappedEntity.getContent();
+        return new LazyDecompressingInputStream(in, this);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public InputStream getContent() throws IOException {
+        if (wrappedEntity.isStreaming()) {
+            if (content == null) {
+                content = getDecompressingStream();
+            }
+            return content;
+        } else {
+            return getDecompressingStream();
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void writeTo(final OutputStream outstream) throws IOException {
+        Args.notNull(outstream, "Output stream");
+        final InputStream instream = getContent();
+        try {
+            final byte[] buffer = new byte[BUFFER_SIZE];
+            int l;
+            while ((l = instream.read(buffer)) != -1) {
+                outstream.write(buffer, 0, l);
+            }
+        } finally {
+            instream.close();
+        }
+    }
+
+}