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From anat...@apache.org
Subject [4/9] incubator-tamaya git commit: TAMAYA-63: Implemented backport for Java 7.
Date Sat, 24 Jan 2015 20:06:34 GMT
TAMAYA-63: Implemented backport for Java 7.


Project: http://git-wip-us.apache.org/repos/asf/incubator-tamaya/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-tamaya/commit/ffffdc8e
Tree: http://git-wip-us.apache.org/repos/asf/incubator-tamaya/tree/ffffdc8e
Diff: http://git-wip-us.apache.org/repos/asf/incubator-tamaya/diff/ffffdc8e

Branch: refs/heads/master
Commit: ffffdc8eb7df1b0a9d30286cbd312437017efd1f
Parents: b9735e0
Author: anatole <anatole@apache.org>
Authored: Sat Jan 24 11:17:05 2015 +0100
Committer: anatole <anatole@apache.org>
Committed: Sat Jan 24 21:06:15 2015 +0100

----------------------------------------------------------------------
 .../java/org/apache/tamaya/TypeLiteral.java     | 137 +++++++++++++++++++
 .../services/org.apache.tamaya.Configuration    |  19 +++
 2 files changed, 156 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-tamaya/blob/ffffdc8e/java7/api/src/main/java/org/apache/tamaya/TypeLiteral.java
----------------------------------------------------------------------
diff --git a/java7/api/src/main/java/org/apache/tamaya/TypeLiteral.java b/java7/api/src/main/java/org/apache/tamaya/TypeLiteral.java
new file mode 100644
index 0000000..32c32a6
--- /dev/null
+++ b/java7/api/src/main/java/org/apache/tamaya/TypeLiteral.java
@@ -0,0 +1,137 @@
+/*
+* 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.
+*/
+package org.apache.tamaya;
+
+import java.io.Serializable;
+import java.lang.reflect.GenericArrayType;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+
+
+/**
+ * <p>Class for instantiation of objects that represent parameterized types
+ * with current parameters.</p>
+ * <p>
+ * <p>An object that represents a parameterized type may be obtained by
+ * subclassing <tt>TypeLiteral</tt>.</p>
+ * <p>
+ * <pre>
+ * TypeLiteral&lt;List&lt;Integer&gt;&gt; stringListType = new TypeLiteral&lt;List&lt;Integer&gt;&gt;()
{};
+ * </pre>
+ *
+ * @param <T> the type, including all type parameters
+ */
+public class TypeLiteral<T> implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+    private Type type;
+
+    protected TypeLiteral(Type type) {
+        this.type = type;
+    }
+
+    protected TypeLiteral() { }
+
+    public static <T> TypeLiteral<T> of(Type type){
+        return new TypeLiteral<>(type);
+    }
+
+    private static Class<?> getTypeLiteralSubclass(Class<?> clazz) {
+        Class<?> superclass = clazz.getSuperclass();
+        if (superclass.equals(TypeLiteral.class)) {
+            return clazz;
+        } else if (superclass.equals(Object.class)) {
+            return null;
+        } else {
+            return (getTypeLiteralSubclass(superclass));
+        }
+    }
+
+    private static Type getTypeParameter(Class<?> superclass) {
+        Type type = superclass.getGenericSuperclass();
+        if (type instanceof ParameterizedType) {
+            ParameterizedType parameterizedType = (ParameterizedType) type;
+            if (parameterizedType.getActualTypeArguments().length == 1) {
+                return parameterizedType.getActualTypeArguments()[0];
+            }
+        }
+        return null;
+    }
+
+    /**
+     * @return the actual type represented by this object
+     */
+    public final Type getType() {
+        if (type == null) {
+            Class<?> typeLiteralSubclass = getTypeLiteralSubclass(this.getClass());
+            if (typeLiteralSubclass == null) {
+                throw new RuntimeException(getClass() + " is not a subclass of TypeLiteral");
+            }
+            type = getTypeParameter(typeLiteralSubclass);
+            if (type == null) {
+                throw new RuntimeException(getClass() + " does not specify the type parameter
T of TypeLiteral<T>");
+            }
+        }
+        return type;
+    }
+
+    /**
+     * @return the raw type represented by this object
+     */
+    @SuppressWarnings("unchecked")
+    public final Class<T> getRawType() {
+        Type type = getType();
+        if (type instanceof Class) {
+            return (Class<T>) type;
+        } else if (type instanceof ParameterizedType) {
+            return (Class<T>) ((ParameterizedType) type).getRawType();
+        } else if (type instanceof GenericArrayType) {
+            return (Class<T>) Object[].class;
+        } else {
+            throw new RuntimeException("Illegal type");
+        }
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o){
+            return true;
+        }
+        if (!(o instanceof TypeLiteral)){
+            return false;
+        }
+        TypeLiteral that = (TypeLiteral) o;
+        if (type != null ? !type.equals(that.type) : that.type != null){
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = type != null ? type.hashCode() : 0;
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        return "TypeLiteral{" +
+                "type=" + type +
+                '}';
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya/blob/ffffdc8e/java7/core/src/main/resources/META-INF/services/org.apache.tamaya.Configuration
----------------------------------------------------------------------
diff --git a/java7/core/src/main/resources/META-INF/services/org.apache.tamaya.Configuration
b/java7/core/src/main/resources/META-INF/services/org.apache.tamaya.Configuration
new file mode 100644
index 0000000..e51a247
--- /dev/null
+++ b/java7/core/src/main/resources/META-INF/services/org.apache.tamaya.Configuration
@@ -0,0 +1,19 @@
+#
+# 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 current 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.
+#
+org.apache.tamaya.core.internal.DefaultConfiguration


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