android.net.Uri support.

src/test/java/android/net/Uri.java

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+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed 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.
+ */
+
+package android.net;
+
+
+import java.io.File;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.util.AbstractList;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Locale;
+import java.util.RandomAccess;
+import java.util.Set;
+
+/**
+ * Immutable URI reference. A URI reference includes a URI and a fragment, the
+ * component of the URI following a '#'. Builds and parses URI references
+ * which conform to
+ * <a href="http://www.faqs.org/rfcs/rfc2396.html">RFC 2396</a>.
+ *
+ * <p>In the interest of performance, this class performs little to no
+ * validation. Behavior is undefined for invalid input. This class is very
+ * forgiving--in the face of invalid input, it will return garbage
+ * rather than throw an exception unless otherwise specified.
+ */
+public abstract class Uri {
+    public static Uri parse(String uriString) {
+        return new StringUri(uriString);
+    }
+
+    private abstract static class AbstractHierarchicalUri extends Uri {
+
+    }
+
+    private static class StringUri extends AbstractHierarchicalUri {
+        private final String uriString;
+
+        private StringUri(String uriString) {
+            if (uriString == null) {
+                throw new NullPointerException("uriString");
+            }
+
+            this.uriString = uriString;
+        }
+
+        public String toString() {
+            return uriString;
+        }
+    }
+}