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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitce4a32fe52ef09d8f5ff1dd22c001110902b60a2 (patch)
tree5ac38a06f3dde268dc7927dc155896926aaf7012 /khtml/java/kjavaprocess.h
downloadtdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.tar.gz
tdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+// -*- c++ -*-
+
+/* This file is part of the KDE project
+ *
+ * Copyright (C) 2000 Richard Moore <rich@kde.org>
+ * 2000 Wynn Wilkes <wynnw@caldera.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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 GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KJAVAPROCESS_H
+#define KJAVAPROCESS_H
+
+#include <kprocess.h>
+#include <qcstring.h>
+
+/**
+ * @short A class for invoking a Java VM
+ *
+ * This class is a general tool for invoking a Java interpreter. It allows you
+ * to specify some of the standard options that should be understood by all
+ * JVMs.
+ *
+ * @author Richard J. Moore, rich@kde.org
+ * @author Wynn Wilkes, wynnw@calderasystems.com
+ */
+
+class KJavaProcessPrivate;
+class KJavaProcess : public KProcess //QObject
+{
+Q_OBJECT
+
+public:
+ /**
+ * Creates a process object, the process is NOT invoked at this point.
+ * You should first set the process's parameters, and then call startJava.
+ */
+ KJavaProcess();
+ virtual ~KJavaProcess();
+
+ /**
+ * Invoke the JVM with the parameters that have been set. The Java process
+ * will start after this call.
+ */
+ bool startJava();
+
+ /**
+ * Stop the JVM (if it's running).
+ */
+ void stopJava();
+
+ /**
+ * Returns the status of the java Process- true if it's ok, false if it has died.
+ * It calls KProcess::isRunning()
+ */
+ bool isRunning();
+
+ /**
+ * Used to specify the path to the Java executable to be run.
+ */
+ void setJVMPath( const QString& path );
+
+ /**
+ * This will set the classpath the Java process will use. It's used as a the
+ * -cp command line option. It adds every jar file stored in $KDEDIRS/share/apps/kjava/
+ * to the classpath, and then adds the $CLASSPATH environmental variable. This allows
+ * users to simply drop the JSSE (Java Secure Sockets Extension classes into that directory
+ * without having to modify the jvm configuration files.
+ */
+ void setClasspath( const QString& classpath );
+
+ /**
+ * Set a property on the java command line as -Dname=value, or -Dname if value is QString::null.
+ * For example, you could call setSystemProperty( "kjas.debug", "" ) to set the kjas.debug property.
+ */
+ void setSystemProperty( const QString& name, const QString& value );
+
+ /**
+ * The class to be called when startJava() is called.
+ */
+ void setMainClass( const QString& clazzName );
+
+ /**
+ * Extra flags passed to the JVM.
+ */
+ void setExtraArgs( const QString& args );
+
+ /**
+ * Arguments passed to the main class. They will be very last in the java
+ * command line, after the main class.
+ */
+ void setClassArgs( const QString& classArgs );
+
+ /**
+ * Sends a command to the KJAS Applet Server by building a QByteArray
+ * out of the data, and then writes it standard out.
+ */
+ void send( char cmd_code, const QStringList& args );
+
+ /**
+ * Sends a command to the KJAS Applet Server by building a QByteArray
+ * out of the data, and then writes it standard out. It adds each QString
+ * in the arg list, and then adds the data array.
+ */
+ void send( char cmd_code, const QStringList& args, const QByteArray& data );
+
+ /**
+ * Writes all pending data to JVM
+ **/
+ void flushBuffers();
+
+protected slots:
+ /**
+ * This slot is called whenever something is written to stdin of the process.
+ * It's called again to make sure we keep emptying out the buffer that contains
+ * the messages we need send.
+ */
+ void slotWroteData();
+
+ /**
+ * This slot is called when the Java Process writes to standard out. We then
+ * process the data from the file descriptor that is passed to us and send the
+ * command to the AppletServer
+ */
+ void slotReceivedData( int, int& );
+ /**
+ * This slot is called when the Java Process exited.
+ */
+ void slotExited( KProcess *process );
+
+protected:
+ virtual bool invokeJVM();
+ virtual void killJVM();
+
+ QByteArray* addArgs( char cmd_code, const QStringList& args );
+ void popBuffer();
+ void sendBuffer( QByteArray* buff );
+ void storeSize( QByteArray* buff );
+
+ KProcess* javaProcess;
+
+signals:
+ void received( const QByteArray& );
+ void exited( int status );
+
+private:
+ KJavaProcessPrivate *d;
+
+};
+
+#endif // KJAVAPROCESS_H