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-rw-r--r--connectivity/source/drivers/hsqldb/StorageNativeInputStream.cxx291
1 files changed, 291 insertions, 0 deletions
diff --git a/connectivity/source/drivers/hsqldb/StorageNativeInputStream.cxx b/connectivity/source/drivers/hsqldb/StorageNativeInputStream.cxx
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+/* -*- 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 .
+ */
+
+
+#if defined(HAVE_CONFIG_H) && HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <com/sun/star/io/XStream.hpp>
+#include <com/sun/star/document/XDocumentSubStorageSupplier.hpp>
+#include <hsqldb/HStorageAccess.hxx>
+#include <hsqldb/HStorageMap.hxx>
+
+#include <osl/diagnose.h>
+#include "accesslog.hxx"
+
+#include <limits>
+
+
+using namespace ::com::sun::star::container;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::document;
+using namespace ::com::sun::star::embed;
+using namespace ::com::sun::star::io;
+using namespace ::com::sun::star::lang;
+using namespace ::connectivity::hsqldb;
+
+/*****************************************************************************/
+/* exception macros */
+
+#define ThrowException(env, type, msg) { \
+ env->ThrowNew(env->FindClass(type), msg); }
+/*
+ * Class: com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream
+ * Method: openStream
+ * Signature: (Ljava/lang/String;Ljava/lang/String;I)V
+ */
+extern "C" SAL_JNI_EXPORT void JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream_openStream
+ (JNIEnv * env, jobject /*obj_this*/,jstring key, jstring name, jint mode)
+{
+#ifdef HSQLDB_DBG
+ {
+ OperationLogFile( env, name, "input" ).logOperation( "openStream" );
+ LogFile( env, name, "input" ).create();
+ }
+#endif
+ StorageContainer::registerStream(env,name,key,mode);
+}
+
+
+/*
+ * Class: com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream
+ * Method: read
+ * Signature: (Ljava/lang/String;Ljava/lang/String;)I
+ */
+extern "C" SAL_JNI_EXPORT jint JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream_read__Ljava_lang_String_2Ljava_lang_String_2
+ (JNIEnv * env, jobject /*obj_this*/, jstring key, jstring name)
+{
+#ifdef HSQLDB_DBG
+ OperationLogFile( env, name, "input" ).logOperation( "read()" );
+
+ DataLogFile aDataLog( env, name, "input" );
+ return read_from_storage_stream( env, obj_this, name, key, &aDataLog );
+#else
+ return read_from_storage_stream( env, name, key );
+#endif
+}
+
+
+/*
+ * Class: com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream
+ * Method: read
+ * Signature: (Ljava/lang/String;Ljava/lang/String;[BII)I
+ */
+extern "C" SAL_JNI_EXPORT jint JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream_read__Ljava_lang_String_2Ljava_lang_String_2_3BII
+ (JNIEnv * env, jobject obj_this, jstring key, jstring name, jbyteArray buffer, jint off, jint len)
+{
+#ifdef HSQLDB_DBG
+ OperationLogFile( env, name, "input" ).logOperation( "read( byte[], int, int )" );
+
+ DataLogFile aDataLog( env, name, "input" );
+ return read_from_storage_stream_into_buffer( env, obj_this, name, key, buffer, off, len, &aDataLog );
+#else
+ (void)obj_this;
+ return read_from_storage_stream_into_buffer(env, name,key,buffer,off,len);
+#endif
+}
+
+
+/*
+ * Class: com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream
+ * Method: close
+ * Signature: (Ljava/lang/String;Ljava/lang/String;)V
+ */
+extern "C" SAL_JNI_EXPORT void JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream_close
+ (JNIEnv * env, jobject /*obj_this*/,jstring key, jstring name)
+{
+#ifdef HSQLDB_DBG
+ OperationLogFile aOpLog( env, name, "input" );
+ aOpLog.logOperation( "close" );
+ aOpLog.close();
+
+ LogFile aDataLog( env, name, "input" );
+ aDataLog.close();
+#endif
+ StorageContainer::revokeStream(env,name,key);
+}
+
+
+/*
+ * Class: com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream
+ * Method: skip
+ * Signature: (Ljava/lang/String;Ljava/lang/String;J)J
+ */
+extern "C" SAL_JNI_EXPORT jlong JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream_skip
+ (JNIEnv * env, jobject /*obj_this*/,jstring key, jstring name, jlong n)
+{
+#ifdef HSQLDB_DBG
+ OperationLogFile( env, name, "input" ).logOperation( "skip()" );
+#endif
+
+ if ( n < 0 )
+ ThrowException( env,
+ "java/io/IOException",
+ "n < 0");
+
+ std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
+ OSL_ENSURE(pHelper.get(),"No stream helper!");
+ if ( pHelper )
+ {
+ Reference<XInputStream> xIn = pHelper->getInputStream();
+ if ( xIn.is() )
+ {
+ try
+ {
+ sal_Int64 tmpLongVal = n;
+ sal_Int32 tmpIntVal;
+
+ try
+ {
+ do {
+ if (tmpLongVal >= std::numeric_limits<sal_Int64>::max() )
+ tmpIntVal = std::numeric_limits<sal_Int32>::max();
+ else // Casting is safe here.
+ tmpIntVal = static_cast<sal_Int32>(tmpLongVal);
+
+ tmpLongVal -= tmpIntVal;
+
+ xIn->skipBytes(tmpIntVal);
+
+ } while (tmpLongVal > 0);
+ }
+ catch(const Exception&)
+ {
+ }
+
+ return n - tmpLongVal;
+ }
+ catch(const Exception& e)
+ {
+ OSL_FAIL("Exception caught! : skip();");
+ StorageContainer::throwJavaException(e,env);
+ }
+ }
+ }
+ else
+ {
+ ThrowException( env,
+ "java/io/IOException",
+ "Stream is not valid");
+ }
+ return 0;
+}
+
+
+/*
+ * Class: com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream
+ * Method: available
+ * Signature: (Ljava/lang/String;Ljava/lang/String;)I
+ */
+extern "C" SAL_JNI_EXPORT jint JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream_available
+ (JNIEnv * env, jobject /*obj_this*/,jstring key, jstring name)
+{
+#ifdef HSQLDB_DBG
+ OperationLogFile aOpLog( env, name, "input" );
+ aOpLog.logOperation( "available" );
+#endif
+
+ std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
+ OSL_ENSURE(pHelper.get(),"No stream helper!");
+ Reference<XInputStream> xIn = pHelper ? pHelper->getInputStream() : Reference<XInputStream>();
+ if ( xIn.is() )
+ {
+ try
+ {
+ jint nAvailable = xIn->available();
+#ifdef HSQLDB_DBG
+ aOpLog.logReturn( nAvailable );
+#endif
+ return nAvailable;
+ }
+ catch(const Exception& e)
+ {
+ OSL_FAIL("Exception caught! : available();");
+ StorageContainer::throwJavaException(e,env);
+ }
+ }
+ else
+ {
+ ThrowException( env,
+ "java/io/IOException",
+ "Stream is not valid");
+ }
+ return 0;
+}
+
+
+/*
+ * Class: com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream
+ * Method: read
+ * Signature: (Ljava/lang/String;Ljava/lang/String;[B)I
+ */
+extern "C" SAL_JNI_EXPORT jint JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_StorageNativeInputStream_read__Ljava_lang_String_2Ljava_lang_String_2_3B
+ (JNIEnv * env, jobject /*obj_this*/,jstring key, jstring name, jbyteArray buffer)
+{
+#ifdef HSQLDB_DBG
+ OperationLogFile aOpLog( env, name, "input" );
+ aOpLog.logOperation( "read( byte[] )" );
+
+ DataLogFile aDataLog( env, name, "input" );
+#endif
+
+ std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
+ Reference< XInputStream> xIn = pHelper ? pHelper->getInputStream() : Reference< XInputStream>();
+ OSL_ENSURE(xIn.is(),"Input stream is NULL!");
+ jint nBytesRead = 0;
+ if ( xIn.is() )
+ {
+ jsize nLen = env->GetArrayLength(buffer);
+ Sequence< ::sal_Int8 > aData(nLen);
+
+ try
+ {
+ nBytesRead = xIn->readBytes(aData,nLen);
+ }
+ catch(const Exception& e)
+ {
+ OSL_FAIL("Exception caught! : skip();");
+ StorageContainer::throwJavaException(e,env);
+ }
+
+ // Casting bytesRead to an int is okay, since the user can
+ // only pass in an integer length to read, so the bytesRead
+ // must <= len.
+
+ if (nBytesRead <= 0) {
+#ifdef HSQLDB_DBG
+ aOpLog.logReturn( (jint)-1 );
+#endif
+ return -1;
+ }
+ OSL_ENSURE(nLen >= nBytesRead,"Buffer is too small!");
+ OSL_ENSURE(aData.getLength() >= nBytesRead,"Buffer is too small!");
+ env->SetByteArrayRegion(buffer, 0, nBytesRead, reinterpret_cast<jbyte*>(&aData[0]));
+#ifdef HSQLDB_DBG
+ aDataLog.write( &aData[0], nBytesRead );
+#endif
+ }
+#ifdef HSQLDB_DBG
+ aOpLog.logReturn( nBytesRead );
+#endif
+ return nBytesRead;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */