Work in progress with contexts.

Author: asfernandes

src/fbjava-tests/src/main/java/example/Functions.java

@@ -18,16 +18,20 @@
  */
 package example;
 
+import java.lang.reflect.Method;
 import java.math.BigDecimal;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
+import java.security.PrivilegedExceptionAction;
 import java.sql.Blob;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
 
+import org.firebirdsql.fbjava.Context;
+
 
 public class Functions
 {
@@ -225,4 +229,33 @@ public static int f26()
 			return 0;
 		}
 	}
+
+	public static int f25() throws Exception
+	{
+		AccessController.doPrivileged(new PrivilegedExceptionAction<Void>() {
+			@Override
+			public Void run() throws Exception
+			{
+				Class<?> clazz = Class.forName("org.firebirdsql.fbjava.impl.InternalContext");
+				Method method = clazz.getMethod("get");
+				method.setAccessible(true);
+				method.invoke(null);
+				return null;
+			}
+		});
+
+		return 0;
+	}
+
+	public static String f26()
+	{
+		Context context = Context.get();
+		return context.getPackageName() + "." + context.getObjectName() + "!" + context.getNameInfo();
+	}
+
+	public static String f27()
+	{
+		Context context = Context.get();
+		return context.getBody();
+	}
 }

src/fbjava/src/main/java/org/firebirdsql/fbjava/CallableRoutineContext.java

@@ -0,0 +1,42 @@
+/*
+ * FB/Java plugin
+ *
+ * Distributable under LGPL license.
+ * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * LGPL License for more details.
+ *
+ * This file was created by members of the Firebird development team.
+ * All individual contributions remain the Copyright (C) of those
+ * individuals.  Contributors to this file are either listed here or
+ * can be obtained from a git log command.
+ *
+ * All rights reserved.
+ */
+package org.firebirdsql.fbjava;
+
+
+/**
+ * This interface represents a Firebird Function or Procedure Context.
+ *
+ * @author <a href="mailto:adrianosf@gmail.com">Adriano dos Santos Fernandes</a>
+ */
+public interface CallableRoutineContext extends Context
+{
+	/**
+	 * Gets the Context instance associated with the current call.
+	 */
+	public static CallableRoutineContext get()
+	{
+		return (CallableRoutineContext) Context.get();
+	}
+
+	/**
+	 * Gets the metadata package name that called the external routine.
+	 * For unpackaged routines, return null.
+	 */
+	public String getPackageName();
+}

src/fbjava/src/main/java/org/firebirdsql/fbjava/Context.java

@@ -0,0 +1,81 @@
+/*
+ * FB/Java plugin
+ *
+ * Distributable under LGPL license.
+ * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * LGPL License for more details.
+ *
+ * This file was created by members of the Firebird development team.
+ * All individual contributions remain the Copyright (C) of those
+ * individuals.  Contributors to this file are either listed here or
+ * can be obtained from a git log command.
+ *
+ * All rights reserved.
+ */
+package org.firebirdsql.fbjava;
+
+import java.lang.reflect.Method;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.sql.Connection;
+import java.sql.SQLException;
+
+
+/**
+ * This interface represents a Firebird External Context.
+ *
+ * @author <a href="mailto:adrianosf@gmail.com">Adriano dos Santos Fernandes</a>
+ */
+public interface Context
+{
+	/**
+	 * Gets the Context instance associated with the current call.
+	 */
+	public static Context get()
+	{
+		// For security purposes, InternalContextImpl is not public, so get it by reflection.
+
+		return AccessController.doPrivileged(new PrivilegedAction<Context>() {
+			@Override
+			public Context run()
+			{
+				try
+				{
+					Class<?> clazz = Class.forName("org.firebirdsql.fbjava.impl.InternalContext");
+					Method method = clazz.getMethod("getContextImpl");
+					method.setAccessible(true);
+					return (Context) method.invoke(null);
+				}
+				catch (Exception e)
+				{
+					throw new RuntimeException(e);
+				}
+			}
+		});
+	}
+
+	/**
+	 * Gets the Connection object.
+	 */
+	public Connection getConnection() throws SQLException;
+
+	/**
+	 * Gets the metadata object name that called the external routine.
+	 */
+	public String getObjectName();
+
+	/**
+	 * Gets info stored at entry point metadata.
+	 * TODO: Document how this can be used.
+	 */
+	public String getNameInfo();
+
+	/**
+	 * Gets metadata body.
+	 */
+	public String getBody();
+}

src/fbjava/src/main/java/org/firebirdsql/fbjava/FunctionContext.java

@@ -0,0 +1,36 @@
+/*
+ * FB/Java plugin
+ *
+ * Distributable under LGPL license.
+ * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * LGPL License for more details.
+ *
+ * This file was created by members of the Firebird development team.
+ * All individual contributions remain the Copyright (C) of those
+ * individuals.  Contributors to this file are either listed here or
+ * can be obtained from a git log command.
+ *
+ * All rights reserved.
+ */
+package org.firebirdsql.fbjava;
+
+
+/**
+ * This interface represents a Firebird Function Context.
+ *
+ * @author <a href="mailto:adrianosf@gmail.com">Adriano dos Santos Fernandes</a>
+ */
+public interface FunctionContext extends CallableRoutineContext
+{
+	/**
+	 * Gets the Context instance associated with the current call.
+	 */
+	public static FunctionContext get()
+	{
+		return (FunctionContext) Context.get();
+	}
+}

src/fbjava/src/main/java/org/firebirdsql/fbjava/ProcedureContext.java

@@ -0,0 +1,36 @@
+/*
+ * FB/Java plugin
+ *
+ * Distributable under LGPL license.
+ * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * LGPL License for more details.
+ *
+ * This file was created by members of the Firebird development team.
+ * All individual contributions remain the Copyright (C) of those
+ * individuals.  Contributors to this file are either listed here or
+ * can be obtained from a git log command.
+ *
+ * All rights reserved.
+ */
+package org.firebirdsql.fbjava;
+
+
+/**
+ * This interface represents a Firebird Procedure Context.
+ *
+ * @author <a href="mailto:adrianosf@gmail.com">Adriano dos Santos Fernandes</a>
+ */
+public interface ProcedureContext extends CallableRoutineContext
+{
+	/**
+	 * Gets the Context instance associated with the current call.
+	 */
+	public static ProcedureContext get()
+	{
+		return (ProcedureContext) Context.get();
+	}
+}

src/fbjava/src/main/java/org/firebirdsql/fbjava/TriggerContext.java

@@ -0,0 +1,36 @@
+/*
+ * FB/Java plugin
+ *
+ * Distributable under LGPL license.
+ * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * LGPL License for more details.
+ *
+ * This file was created by members of the Firebird development team.
+ * All individual contributions remain the Copyright (C) of those
+ * individuals.  Contributors to this file are either listed here or
+ * can be obtained from a git log command.
+ *
+ * All rights reserved.
+ */
+package org.firebirdsql.fbjava;
+
+
+/**
+ * This interface represents a Firebird Trigger Context.
+ *
+ * @author <a href="mailto:adrianosf@gmail.com">Adriano dos Santos Fernandes</a>
+ */
+public interface TriggerContext extends Context
+{
+	/**
+	 * Gets the Context instance associated with the current call.
+	 */
+	public static TriggerContext get()
+	{
+		return (TriggerContext) Context.get();
+	}
+}

src/fbjava/src/main/java/org/firebirdsql/fbjava/impl/CallableRoutineContextImpl.java

@@ -0,0 +1,40 @@
+/*
+ * FB/Java plugin
+ *
+ * Distributable under LGPL license.
+ * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * LGPL License for more details.
+ *
+ * This file was created by members of the Firebird development team.
+ * All individual contributions remain the Copyright (C) of those
+ * individuals.  Contributors to this file are either listed here or
+ * can be obtained from a git log command.
+ *
+ * All rights reserved.
+ */
+package org.firebirdsql.fbjava.impl;
+
+import org.firebirdsql.fbjava.CallableRoutineContext;
+
+
+abstract class CallableRoutineContextImpl extends ContextImpl implements CallableRoutineContext
+{
+	private InternalContext internalContext;
+
+	//// TODO: input/output parameters
+
+	public CallableRoutineContextImpl(InternalContext internalContext)
+	{
+		super(internalContext);
+	}
+
+	@Override
+	public String getPackageName()
+	{
+		return internalContext.getRoutine().packageName;
+	}
+}

src/fbjava/src/main/java/org/firebirdsql/fbjava/impl/ContextImpl.java

@@ -0,0 +1,59 @@
+/*
+ * FB/Java plugin
+ *
+ * Distributable under LGPL license.
+ * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * LGPL License for more details.
+ *
+ * This file was created by members of the Firebird development team.
+ * All individual contributions remain the Copyright (C) of those
+ * individuals.  Contributors to this file are either listed here or
+ * can be obtained from a git log command.
+ *
+ * All rights reserved.
+ */
+package org.firebirdsql.fbjava.impl;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+import org.firebirdsql.fbjava.Context;
+
+
+abstract class ContextImpl implements Context
+{
+	private InternalContext internalContext;
+
+	public ContextImpl(InternalContext internalContext)
+	{
+		this.internalContext = internalContext;
+	}
+
+	@Override
+	public Connection getConnection() throws SQLException
+	{
+		return internalContext.getConnection();
+	}
+
+	@Override
+	public String getObjectName()
+	{
+		return internalContext.getRoutine().objectName;
+	}
+
+	@Override
+	public String getNameInfo()
+	{
+		return internalContext.getRoutine().nameInfo;
+	}
+
+	@Override
+	public String getBody()
+	{
+		return internalContext.getRoutine().body;
+	}
+}