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/**
* @copyright
* ====================================================================
* 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.
* ====================================================================
* @endcopyright
*
* @file DiffSummaryReceiver.cpp
* @brief Implementation of the class DiffSummaryReceiver
*/
#include "JNIUtil.h"
#include "EnumMapper.h"
#include "DiffSummaryReceiver.h"
DiffSummaryReceiver::DiffSummaryReceiver(jobject jreceiver)
{
m_receiver = jreceiver;
}
DiffSummaryReceiver::~DiffSummaryReceiver()
{
// m_receiver does not need to be destroyed, because it is a
// parameter to the Java SVNClient.diffSummarize() method, and
// thus not explicitly managed.
}
svn_error_t *
DiffSummaryReceiver::summarize(const svn_client_diff_summarize_t *diff,
void *baton,
apr_pool_t *pool)
{
if (baton)
return static_cast<DiffSummaryReceiver *>(baton)->onSummary(diff, pool);
return SVN_NO_ERROR;
}
svn_error_t *
DiffSummaryReceiver::onSummary(const svn_client_diff_summarize_t *diff,
apr_pool_t *pool)
{
JNIEnv *env = JNIUtil::getEnv();
// Create a local frame for our references
env->PushLocalFrame(LOCAL_FRAME_SIZE);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
// As Java method IDs will not change during the time this library
// is loaded, they can be cached.
static jmethodID callback = 0;
jclass clazz;
if (callback == 0)
{
// Initialize the method ID.
clazz = env->FindClass(JAVA_PACKAGE "/callback/DiffSummaryCallback");
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
callback = env->GetMethodID(clazz, "onSummary",
"(L"JAVA_PACKAGE"/DiffSummary;)V");
if (JNIUtil::isJavaExceptionThrown() || callback == 0)
POP_AND_RETURN(SVN_NO_ERROR);
}
// Do some prep work for tranforming the DIFF parameter into a
// Java equivalent.
static jmethodID ctor = 0;
clazz = env->FindClass(JAVA_PACKAGE "/DiffSummary");
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
if (ctor == 0)
{
ctor = env->GetMethodID(clazz, "<init>",
"(Ljava/lang/String;"
"L"JAVA_PACKAGE"/DiffSummary$DiffKind;Z"
"L"JAVA_PACKAGE"/types/NodeKind;)V");
if (JNIUtil::isJavaExceptionThrown() || ctor == 0)
POP_AND_RETURN(SVN_NO_ERROR);
}
// Convert the arguments into their Java equivalent,
jstring jPath = JNIUtil::makeJString(diff->path);
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
jobject jNodeKind = EnumMapper::mapNodeKind(diff->node_kind);
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
jobject jSummarizeKind = EnumMapper::mapSummarizeKind(diff->summarize_kind);
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
// Actually tranform the DIFF parameter into a Java equivalent.
jobject jDiffSummary = env->NewObject(clazz, ctor, jPath, jSummarizeKind,
(jboolean) diff->prop_changed,
jNodeKind);
if (JNIUtil::isJavaExceptionThrown() || jDiffSummary == NULL)
POP_AND_RETURN(SVN_NO_ERROR);
// Invoke the Java DiffSummaryReceiver callback.
env->CallVoidMethod(m_receiver, callback, jDiffSummary);
// We return whether an exception was thrown or not.
env->PopLocalFrame(NULL);
return SVN_NO_ERROR;
}
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