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

mobile/android/thirdparty/ch/boye/httpclientandroidlib/params/DefaultedHttpParams.java

@@ -0,0 +1,163 @@
+/*
+ * ====================================================================
+ * 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.params;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import ch.boye.httpclientandroidlib.util.Args;
+
+/**
+ * {@link HttpParams} implementation that delegates resolution of a parameter
+ * to the given default {@link HttpParams} instance if the parameter is not
+ * present in the local one. The state of the local collection can be mutated,
+ * whereas the default collection is treated as read-only.
+ *
+ * @since 4.0
+ *
+ * @deprecated (4.3) use configuration classes provided 'ch.boye.httpclientandroidlib.config'
+ *  and 'ch.boye.httpclientandroidlib.client.config'
+ */
+@Deprecated
+public final class DefaultedHttpParams extends AbstractHttpParams {
+
+    private final HttpParams local;
+    private final HttpParams defaults;
+
+    /**
+     * Create the defaulted set of HttpParams.
+     *
+     * @param local the mutable set of HttpParams
+     * @param defaults the default set of HttpParams, not mutated by this class
+     */
+    public DefaultedHttpParams(final HttpParams local, final HttpParams defaults) {
+        super();
+        this.local = Args.notNull(local, "Local HTTP parameters");
+        this.defaults = defaults;
+    }
+
+    /**
+     * Creates a copy of the local collection with the same default
+     */
+    public HttpParams copy() {
+        final HttpParams clone = this.local.copy();
+        return new DefaultedHttpParams(clone, this.defaults);
+    }
+
+    /**
+     * Retrieves the value of the parameter from the local collection and, if the
+     * parameter is not set locally, delegates its resolution to the default
+     * collection.
+     */
+    public Object getParameter(final String name) {
+        Object obj = this.local.getParameter(name);
+        if (obj == null && this.defaults != null) {
+            obj = this.defaults.getParameter(name);
+        }
+        return obj;
+    }
+
+    /**
+     * Attempts to remove the parameter from the local collection. This method
+     * <i>does not</i> modify the default collection.
+     */
+    public boolean removeParameter(final String name) {
+        return this.local.removeParameter(name);
+    }
+
+    /**
+     * Sets the parameter in the local collection. This method <i>does not</i>
+     * modify the default collection.
+     */
+    public HttpParams setParameter(final String name, final Object value) {
+        return this.local.setParameter(name, value);
+    }
+
+    /**
+     *
+     * @return the default HttpParams collection
+     */
+    public HttpParams getDefaults() {
+        return this.defaults;
+    }
+
+    /**
+     * Returns the current set of names
+     * from both the local and default HttpParams instances.
+     *
+     * Changes to the underlying HttpParams intances are not reflected
+     * in the set - it is a snapshot.
+     *
+     * @return the combined set of names, as a Set<String>
+     * @since 4.2
+     * @throws UnsupportedOperationException if either the local or default HttpParams instances do not implement HttpParamsNames
+     */
+    @Override
+    public Set<String> getNames() {
+        final Set<String> combined = new HashSet<String>(getNames(defaults));
+        combined.addAll(getNames(this.local));
+        return combined ;
+    }
+
+    /**
+     * Returns the current set of defaults names.
+     *
+     * Changes to the underlying HttpParams are not reflected
+     * in the set - it is a snapshot.
+     *
+     * @return the names, as a Set<String>
+     * @since 4.2
+     * @throws UnsupportedOperationException if the default HttpParams instance does not implement HttpParamsNames
+     */
+    public Set<String> getDefaultNames() {
+        return new HashSet<String>(getNames(this.defaults));
+    }
+
+    /**
+     * Returns the current set of local names.
+     *
+     * Changes to the underlying HttpParams are not reflected
+     * in the set - it is a snapshot.
+     *
+     * @return the names, as a Set<String>
+     * @since 4.2
+     * @throws UnsupportedOperationException if the local HttpParams instance does not implement HttpParamsNames
+     */
+    public Set<String> getLocalNames() {
+        return new HashSet<String>(getNames(this.local));
+    }
+
+    // Helper method
+    private Set<String> getNames(final HttpParams params) {
+        if (params instanceof HttpParamsNames) {
+            return ((HttpParamsNames) params).getNames();
+        }
+        throw new UnsupportedOperationException("HttpParams instance does not implement HttpParamsNames");
+    }
+
+}