1 files changed, 120 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/javah/JavahAdapterFactory.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/javah/JavahAdapterFactory.java
new file mode 100644
index 00000000..d98b4276
--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/javah/JavahAdapterFactory.java
@@ -0,0 +1,120 @@
+/*
+ *  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.tools.ant.taskdefs.optional.javah;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.ProjectComponent;
+import org.apache.tools.ant.types.Path;
+import org.apache.tools.ant.util.ClasspathUtils;
+import org.apache.tools.ant.util.JavaEnvUtils;
+
+/**
+ * Creates the JavahAdapter based on the user choice and
+ * potentially the VM vendor.
+ *
+ * @since Ant 1.6.3
+ */
+// CheckStyle:HideUtilityClassConstructorCheck OFF (bc)
+public class JavahAdapterFactory {
+
+    /**
+     * Determines the default choice of adapter based on the VM
+     * vendor.
+     *
+     * @return the default choice of adapter based on the VM
+     * vendor
+     */
+    public static String getDefault() {
+        if (JavaEnvUtils.isKaffe()) {
+            return Kaffeh.IMPLEMENTATION_NAME;
+        } else if (JavaEnvUtils.isGij()) {
+            return Gcjh.IMPLEMENTATION_NAME;
+        }
+        return SunJavah.IMPLEMENTATION_NAME;
+    }
+
+    /**
+     * Creates the JavahAdapter based on the user choice and
+     * potentially the VM vendor.
+     *
+     * @param choice the user choice (if any).
+     * @param log a ProjectComponent instance used to access Ant's
+     * logging system.
+     * @return The adapter to use.
+     * @throws BuildException if there is an error.
+     */
+    public static JavahAdapter getAdapter(String choice,
+                                          ProjectComponent log)
+        throws BuildException {
+        return getAdapter(choice, log, null);
+    }
+
+    /**
+     * Creates the JavahAdapter based on the user choice and
+     * potentially the VM vendor.
+     *
+     * @param choice the user choice (if any).
+     * @param log a ProjectComponent instance used to access Ant's
+     * logging system.
+     * @param classpath the classpath to use when looking up an
+     * adapter class
+     * @return The adapter to use.
+     * @throws BuildException if there is an error.
+     * @since Ant 1.8.0
+     */
+    public static JavahAdapter getAdapter(String choice,
+                                          ProjectComponent log,
+                                          Path classpath)
+        throws BuildException {
+        if ((JavaEnvUtils.isKaffe() && choice == null)
+            || Kaffeh.IMPLEMENTATION_NAME.equals(choice)) {
+            return new Kaffeh();
+        } else if ((JavaEnvUtils.isGij() && choice == null)
+            || Gcjh.IMPLEMENTATION_NAME.equals(choice)) {
+            return new Gcjh();
+        } else if (SunJavah.IMPLEMENTATION_NAME.equals(choice)) {
+            return new SunJavah();
+        } else if (choice != null) {
+            return resolveClassName(choice,
+                                    // Memory leak in line below
+                                    log.getProject()
+                                    .createClassLoader(classpath));
+        }
+
+        // This default has been good enough until Ant 1.6.3, so stick
+        // with it
+        return new SunJavah();
+    }
+
+    /**
+     * Tries to resolve the given classname into a javah adapter.
+     * Throws a fit if it can't.
+     *
+     * @param className The fully qualified classname to be created.
+     * @param loader the classloader to use
+     * @throws BuildException This is the fit that is thrown if className
+     * isn't an instance of JavahAdapter.
+     */
+    private static JavahAdapter resolveClassName(String className,
+                                                 ClassLoader loader)
+            throws BuildException {
+        return (JavahAdapter) ClasspathUtils.newInstance(className,
+                loader != null ? loader :
+                JavahAdapterFactory.class.getClassLoader(), JavahAdapter.class);
+    }
+}