execute move of global headers

see https://gerrit.libreoffice.org/#/c/3367/
and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details

Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a

4 files changed, 418 insertions, 0 deletions

diff --git a/include/jvmaccess/classpath.hxx b/include/jvmaccess/classpath.hxx
new file mode 100644
index 000000000000..1cc8d83ab348
--- /dev/null
+++ b/include/jvmaccess/classpath.hxx
@@ -0,0 +1,139 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+#ifndef INCLUDED_JVMACCESS_CLASSPATH_HXX
+#define INCLUDED_JVMACCESS_CLASSPATH_HXX
+
+#include "jvmaccessdllapi.h"
+#include "sal/config.h"
+#include "com/sun/star/uno/Reference.hxx"
+
+#include "jni.h"
+
+namespace com { namespace sun { namespace star { namespace uno {
+    class XComponentContext;
+} } } }
+
+namespace jvmaccess {
+
+/**
+   Helper functions for class path handling.
+*/
+class JVMACCESS_DLLPUBLIC ClassPath {
+public:
+    /**
+       translates a class path into a java.net.URL[] instance.
+
+       @param context
+       a component context; must not be null.
+
+       @param environment
+       a JNI environment; must not be null.
+
+       @param classPath
+       a list of zero or more internal (see the
+       com.sun.star.uri.ExternalUriReferenceTranslator service) URI references,
+       where any space characters (U+0020) are ignored (and, in particular,
+       separate adjacent URI references).  Any vnd.sun.star.expand URL
+       references in the list are expanded using the
+       com.sun.star.util.theMacroExpander singleton of the given context.
+
+       @returns
+       a local reference to a java.net.URL[] instance containing the external
+       (see the com.sun.star.uri.ExternalUriReferenceTranslator service)
+       equivalents of all the URI references in the given classPath.  If null, a
+       (still pending) JNI exception occurred.
+
+       @throws com::sun::star::uno::RuntimeException
+    */
+    static inline ::jobjectArray
+    translateToUrls(
+        ::com::sun::star::uno::Reference<
+        ::com::sun::star::uno::XComponentContext > const & context,
+        ::JNIEnv * environment, OUString const & classPath)
+    {
+        return
+            static_cast< ::jobjectArray >(
+                doTranslateToUrls(context, environment, classPath));
+    }
+
+    /**
+       loads a class via a java.net.URLClassLoader.
+
+       @param context
+       a component context; must not be null.
+
+       @param environment
+       a JNI environment; must not be null.
+
+       @param classPath
+       a list of zero or more internal (see the
+       com.sun.star.uri.ExternalUriReferenceTranslator service) URI references,
+       where any space characters (U+0020) are ignored (and, in particular,
+       separate adjacent URI references).  Any vnd.sun.star.expand URL
+       references in the list are expanded using the
+       com.sun.star.util.theMacroExpander singleton of the given context.
+
+       @param name
+       the Java binary name of the class to load.
+
+       @returns
+       a local reference to a java.lang.Class instance.  If null, a (still
+       pending) JNI exception occurred.
+
+       @throws com::sun::star::uno::RuntimeException
+    */
+    static inline ::jclass loadClass(
+        ::com::sun::star::uno::Reference<
+        ::com::sun::star::uno::XComponentContext > const & context,
+        ::JNIEnv * environment, OUString const & classPath,
+        OUString const & name)
+    {
+        return
+            static_cast< ::jclass >(
+                doLoadClass(context, environment, classPath, name));
+    }
+
+private:
+    ClassPath(); // not defined
+    ClassPath(ClassPath &); // not defined
+    ~ClassPath(); // not defined
+    void operator =(ClassPath &); // not defined
+
+    // Functions that replace JNIEnv, jobjectArray, and jclass with void *, so
+    // that their mangled C++ names do not depend on the JDK version used at
+    // compile time:
+
+    static void * doTranslateToUrls(
+        ::com::sun::star::uno::Reference<
+        ::com::sun::star::uno::XComponentContext > const & context,
+        void * environment, OUString const & classPath);
+
+    static void * doLoadClass(
+        ::com::sun::star::uno::Reference<
+        ::com::sun::star::uno::XComponentContext > const & context,
+        void * environment, OUString const & classPath,
+        OUString const & name);
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/jvmaccess/jvmaccessdllapi.h b/include/jvmaccess/jvmaccessdllapi.h
new file mode 100644
index 000000000000..0f6651b5dbf8
--- /dev/null
+++ b/include/jvmaccess/jvmaccessdllapi.h
@@ -0,0 +1,24 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_JVMACCESS_JVMACCESSDLLAPI_H
+#define INCLUDED_JVMACCESS_JVMACCESSDLLAPI_H
+
+#include <sal/types.h>
+
+#if defined JVMACCESS_DLLIMPLEMENTATION
+#   define JVMACCESS_DLLPUBLIC SAL_DLLPUBLIC_EXPORT
+#else
+#   define JVMACCESS_DLLPUBLIC SAL_DLLPUBLIC_IMPORT
+#endif
+#define JVMACCESS_DLLPRIVATE SAL_DLLPRIVATE
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/jvmaccess/unovirtualmachine.hxx b/include/jvmaccess/unovirtualmachine.hxx
new file mode 100644
index 000000000000..4d618d14d863
--- /dev/null
+++ b/include/jvmaccess/unovirtualmachine.hxx
@@ -0,0 +1,104 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+#ifndef INCLUDED_JVMACCESS_UNOVIRTUALMACHINE_HXX
+#define INCLUDED_JVMACCESS_UNOVIRTUALMACHINE_HXX
+
+#include "jvmaccessdllapi.h"
+#include "sal/config.h"
+#include "salhelper/simplereferenceobject.hxx"
+#include "rtl/ref.hxx"
+
+namespace jvmaccess {
+
+class VirtualMachine;
+
+/** An encapsulating wrapper around a Java virtual machine and an appropriate
+    UNO class loader.
+ */
+class JVMACCESS_DLLPUBLIC UnoVirtualMachine: public salhelper::SimpleReferenceObject {
+public:
+    /** An exception indicating failure to create a UnoVirtualMachine.
+     */
+    class JVMACCESS_DLLPUBLIC CreationException
+    {
+    public:
+        CreationException();
+
+        CreationException(CreationException const &);
+
+        virtual ~CreationException();
+
+        CreationException & operator =(CreationException const &);
+    };
+
+    /** Create a wrapper around a Java virtual machine and an appropriate UNO
+        class loader.
+
+        @param virtualMachine
+        A Java virtual machine wrapper.  Must not be null.
+
+        @param classLoader
+        A local or global JNI reference, relative to the given virtualMachine,
+        to an appropriate UNO class loader instance.  Must not be null.  This
+        parameter should be of type jobject, not void *, but the exact
+        definition of jobject is different for different JDK versions, so that
+        the mangled C++ name of the constructor would depend on the JDK version
+        used at compile time.
+
+        @exception CreationException
+        Thrown in case creation fails (due to a JNI problem).
+     */
+    UnoVirtualMachine(
+        rtl::Reference< jvmaccess::VirtualMachine > const & virtualMachine,
+        void * classLoader);
+
+    /** Get the Java virtual machine wrapper.
+
+        @return
+        The Java virtual machine wrapper.  Will never be null.
+     */
+    rtl::Reference< jvmaccess::VirtualMachine > getVirtualMachine() const;
+
+    /** Get the UNO class loader.
+
+        @return
+        A global JNI reference to the UNO class loader.  (The JNI reference must
+        not be deleted by client code.)  Will never be null.  This should be of
+        type jobject, not void *, but the exact definition of jobject is
+        different for different JDK versions, so that the mangled C++ name of
+        the function would depend on the JDK version used at compile time.
+     */
+    void * getClassLoader() const;
+
+private:
+    UnoVirtualMachine(UnoVirtualMachine &); // not defined
+    void operator =(UnoVirtualMachine &); // not defined
+
+    virtual ~UnoVirtualMachine();
+
+    rtl::Reference< jvmaccess::VirtualMachine > m_virtualMachine;
+    void * m_classLoader;
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/jvmaccess/virtualmachine.hxx b/include/jvmaccess/virtualmachine.hxx
new file mode 100644
index 000000000000..57ac5ead39f4
--- /dev/null
+++ b/include/jvmaccess/virtualmachine.hxx
@@ -0,0 +1,151 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+#ifndef INCLUDED_JVMACCESS_VIRTUALMACHINE_HXX
+#define INCLUDED_JVMACCESS_VIRTUALMACHINE_HXX
+
+#include "jvmaccessdllapi.h"
+#include "rtl/ref.hxx"
+#include "salhelper/simplereferenceobject.hxx"
+
+#include "jni.h"
+
+namespace jvmaccess {
+
+/** An encapsulating wrapper around a Java virtual machine.
+ */
+class JVMACCESS_DLLPUBLIC VirtualMachine: public salhelper::SimpleReferenceObject
+{
+public:
+    /** A helper to attach a thread to a Java virtual machine.
+
+        @descr
+        Upon construction of a guard the current thread is attached to the
+        virtual machine, and upon destruction of the guard the thread is
+        detached again.  For any one thread, multiple instances of this class
+        may be used in a stack-like fashion (care is taken to only really
+        detach the thread from the virtual machine upon destruction of the guard
+        at the bottom of the stack).
+     */
+    class JVMACCESS_DLLPUBLIC AttachGuard
+    {
+    public:
+        /** An exception indicating failure to create an AttachGuard.
+         */
+        class JVMACCESS_DLLPUBLIC CreationException
+        {
+        public:
+            CreationException();
+
+            CreationException(CreationException const &);
+
+            virtual ~CreationException();
+
+            CreationException & operator =(CreationException const &);
+        };
+
+        /** Attach the current thread to a virtual machine.
+
+            @param rMachine
+            The virtual machine to attach to.  Must not be a null reference.
+
+            @exception CreationException
+            Thrown in case attaching fails (due to a JNI problem).
+         */
+        explicit AttachGuard(rtl::Reference< VirtualMachine > const & rMachine);
+
+        /** Detach the current thread from the virtual machine again.
+         */
+        ~AttachGuard();
+
+        /** Get a JNI environment pointer for the current thread.
+
+            @return
+            A valid JNI environment pointer.  Will never be null.
+         */
+        inline JNIEnv * getEnvironment() const { return m_pEnvironment; }
+
+    private:
+        AttachGuard(AttachGuard &); // not implemented
+        void operator =(AttachGuard); // not implemented
+
+        rtl::Reference< VirtualMachine > m_xMachine;
+        JNIEnv * m_pEnvironment;
+        bool m_bDetach;
+    };
+
+    /** Create a wrapper around a Java virtual machine.
+
+        @param pVm
+        A JNI pointer to virtual machine.  Must not be null.
+
+        @param nVersion
+        The JNI version of the virtual machine pointed to by pVm.  Must be at
+        least JNI_VERSION_1_2.  This parameter should be of type jint, not int,
+        but at least on some platforms the definition of jint changed from
+        JDK 1.3 (long) to JDK 1.4 (int), so that the mangled C++ name of the
+        constructor would depend on the JDK version used at compile time.
+
+        @param bDestroy
+        Whether to destroy the virtual machine when destructing the wrapper
+        (i.e., whether the wrapper owns the virtual machine pointed to by pVm).
+
+        @param pMainThreadEnv
+        A valid JNI environment pointer for the current thread; must not be
+        null.  The current thread must be "initially attached" to the virtual
+        machine while this constructor is being called (i.e., it must be the
+        thread that has called JNI_CreateJavaVM in case the virtual machine has
+        been started via the JNI Invocation API, and it must not already have
+        called DetachCurrentThread; or it must be executing native code called
+        from a "primordial" virtual machine).  This environment pointer was
+        formerly used to obtain a reference to the thread's current context
+        class loader (java.lang.Thread.getCurrentClassLoader; if later a native
+        thread was attached to the virtual machine, that thread's context class
+        loader would be null, so the AttachGuard first of all set it to the
+        saved value; this feature has been removed again for performance reasons
+        and because the default context class loader is often not useful, so
+        that code relying on a context class loader has to set one explicitly,
+        anyway).  This parameter is currently unused (but may be used again in
+        the future).
+     */
+    VirtualMachine(JavaVM * pVm, int nVersion, bool bDestroy,
+                   JNIEnv * pMainThreadEnv);
+
+private:
+    VirtualMachine(VirtualMachine &); // not implemented
+    void operator =(VirtualMachine); // not implemented
+
+    virtual ~VirtualMachine();
+
+    JNIEnv * attachThread(bool * pAttached) const;
+
+    void detachThread() const;
+
+    JavaVM * m_pVm;
+    jint m_nVersion;
+    bool m_bDestroy;
+
+    friend class AttachGuard; // to access attachThread, detachThread
+};
+
+}
+
+#endif // INCLUDED_JVMACCESS_VIRTUALMACHINE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */