xref: /trunk/main/connectivity/source/drivers/jdbc/Clob.cxx (revision a3cdc23e488c57f3433f22cd4458e65c27aa499c)

/**************************************************************
 *
 * 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.
 *
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_connectivity.hxx"
#include "java/sql/Clob.hxx"
#include "java/tools.hxx"
#include "java/io/Reader.hxx"
#include <connectivity/dbexception.hxx>
#include <rtl/logfile.hxx>

using namespace connectivity;
//**************************************************************
//************ Class: java.sql.Clob
//**************************************************************

jclass java_sql_Clob::theClass = 0;

java_sql_Clob::java_sql_Clob( JNIEnv * pEnv, jobject myObj )
    : java_lang_Object( pEnv, myObj )
{
    SDBThreadAttach::addRef();
}
java_sql_Clob::~java_sql_Clob()
{
    SDBThreadAttach::releaseRef();
}

jclass java_sql_Clob::getMyClass() const
{
    // die Klasse muss nur einmal geholt werden, daher statisch
    if( !theClass )
        theClass = findMyClass("java/sql/Clob");
    return theClass;
}

sal_Int64 SAL_CALL java_sql_Clob::length(  ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "jdbc", "Ocke.Janssen@sun.com", "java_sql_Clob::length" );
    jlong out(0);
    SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java Environment been deleted!");

    {
        // temporaere Variable initialisieren
        static const char * cSignature = "()J";
        static const char * cMethodName = "length";
        // Java-Call absetzen
        static jmethodID mID(NULL);
        obtainMethodId(t.pEnv, cMethodName,cSignature, mID);
        out = t.pEnv->CallLongMethod( object, mID );
        ThrowSQLException(t.pEnv,*this);
    } //t.pEnv
    return (sal_Int64)out;
}

::rtl::OUString SAL_CALL java_sql_Clob::getSubString( sal_Int64 pos, sal_Int32 subStringLength ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "jdbc", "Ocke.Janssen@sun.com", "java_sql_Clob::getSubString" );
    SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java Environment been deleted!");
    ::rtl::OUString aStr;
    {
        // temporaere Variable initialisieren
        static const char * cSignature = "(JI)Ljava/lang/String;";
        static const char * cMethodName = "getSubString";
        // Java-Call absetzen
        static jmethodID mID(NULL);
        obtainMethodId(t.pEnv, cMethodName,cSignature, mID);
        jstring out = (jstring)t.pEnv->CallObjectMethod( object, mID,pos,subStringLength);
        ThrowSQLException(t.pEnv,*this);
        aStr = JavaString2String(t.pEnv,out);
    } //t.pEnv
    // ACHTUNG: der Aufrufer wird Eigentuemer des zurueckgelieferten Zeigers !!!
    return  aStr;
}

::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > SAL_CALL java_sql_Clob::getCharacterStream(  ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "jdbc", "Ocke.Janssen@sun.com", "java_sql_Clob::getCharacterStream" );
    SDBThreadAttach t;
    static jmethodID mID(NULL);
    jobject out = callObjectMethod(t.pEnv,"getCharacterStream","()Ljava/io/Reader;", mID);

    // ACHTUNG: der Aufrufer wird Eigentuemer des zurueckgelieferten Zeigers !!!
    return out==0 ? 0 : new java_io_Reader( t.pEnv, out );
}

sal_Int64 SAL_CALL java_sql_Clob::position( const ::rtl::OUString& searchstr, sal_Int32 start ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "jdbc", "Ocke.Janssen@sun.com", "java_sql_Clob::position" );
    jlong out(0);
    SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java Environment been deleted!");

    {
        jvalue args[1];
        // Parameter konvertieren
        args[0].l = convertwchar_tToJavaString(t.pEnv,searchstr);
        // temporaere Variable initialisieren
        static const char * cSignature = "(Ljava/lang/String;I)J";
        static const char * cMethodName = "position";
        // Java-Call absetzen
        static jmethodID mID(NULL);
        obtainMethodId(t.pEnv, cMethodName,cSignature, mID);
        out = t.pEnv->CallLongMethod( object, mID, args[0].l,start );
        ThrowSQLException(t.pEnv,*this);
        t.pEnv->DeleteLocalRef((jstring)args[0].l);
    } //t.pEnv
    return (sal_Int64)out;
}

sal_Int64 SAL_CALL java_sql_Clob::positionOfClob( const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XClob >& /*pattern*/, sal_Int64 /*start*/ ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
{
    RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "jdbc", "Ocke.Janssen@sun.com", "java_sql_Clob::positionOfClob" );
    ::dbtools::throwFeatureNotImplementedException( "XClob::positionOfClob", *this );
    // this was put here in CWS warnings01. The previous implementation was defective, as it did ignore
    // the pattern parameter. Since the effort for proper implementation is rather high - we would need
    // to translated patter into a byte[] -, we defer this functionality for the moment (hey, it was
    // unusable, anyway)
    // 2005-11-15 / #i57457# / frank.schoenheit@sun.com
    return 0;
}