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diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/cache/HttpCacheEntrySerializer.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/cache/HttpCacheEntrySerializer.java
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+/*
+ * ====================================================================
+ * 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.cache;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+/**
+ * Used by some {@link HttpCacheStorage} implementations to serialize
+ * {@link HttpCacheEntry} instances to a byte representation before
+ * storage.
+ */
+public interface HttpCacheEntrySerializer {
+
+ /**
+ * Serializes the given entry to a byte representation on the
+ * given {@link OutputStream}.
+ * @throws IOException
+ */
+ void writeTo(HttpCacheEntry entry, OutputStream os) throws IOException;
+
+ /**
+ * Deserializes a byte representation of a cache entry by reading
+ * from the given {@link InputStream}.
+ * @throws IOException
+ */
+ HttpCacheEntry readFrom(InputStream is) throws IOException;
+
+}