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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 BlameCallback.cpp
* @brief Implementation of the class BlameCallback
*/
#include "BlameCallback.h"
#include "CreateJ.h"
#include "JNIUtil.h"
#include "svn_time.h"
/**
* Create a BlameCallback object
* @param jcallback the Java callback object.
*/
BlameCallback::BlameCallback(jobject jcallback)
{
m_callback = jcallback;
}
/**
* Destroy a BlameCallback object
*/
BlameCallback::~BlameCallback()
{
// the m_callback does not need to be destroyed, because it is the passed
// in parameter to the Java SVNClient.blame method.
}
/* implements svn_client_blame_receiver3_t */
svn_error_t *
BlameCallback::callback(void *baton,
svn_revnum_t start_revnum,
svn_revnum_t end_revnum,
apr_int64_t line_no,
svn_revnum_t revision,
apr_hash_t *rev_props,
svn_revnum_t merged_revision,
apr_hash_t *merged_rev_props,
const char *merged_path,
const char *line,
svn_boolean_t local_change,
apr_pool_t *pool)
{
if (baton)
return static_cast<BlameCallback *>(baton)->singleLine(start_revnum,
end_revnum, line_no, revision, rev_props, merged_revision,
merged_rev_props, merged_path, line, local_change, pool);
return SVN_NO_ERROR;
}
/**
* Callback called for a single line in the file, for which the blame
* information was requested. See the Java-doc for more information.
*/
svn_error_t *
BlameCallback::singleLine(svn_revnum_t start_revnum, svn_revnum_t end_revnum,
apr_int64_t line_no, svn_revnum_t revision,
apr_hash_t *revProps, svn_revnum_t mergedRevision,
apr_hash_t *mergedRevProps, const char *mergedPath,
const char *line, svn_boolean_t localChange,
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;
// The method id will not change during the time this library is
// loaded, so it can be cached.
static jmethodID mid = 0;
if (mid == 0)
{
jclass clazz = env->FindClass(JAVA_PACKAGE"/callback/BlameCallback");
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
mid = env->GetMethodID(clazz, "singleLine",
"(JJLjava/util/Map;JLjava/util/Map;"
"Ljava/lang/String;Ljava/lang/String;Z)V");
if (JNIUtil::isJavaExceptionThrown() || mid == 0)
POP_AND_RETURN(SVN_NO_ERROR);
}
// convert the parameters to their Java relatives
jobject jrevProps = CreateJ::PropertyMap(revProps);
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
jobject jmergedRevProps = NULL;
if (mergedRevProps != NULL)
{
jmergedRevProps = CreateJ::PropertyMap(mergedRevProps);
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
}
jstring jmergedPath = JNIUtil::makeJString(mergedPath);
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
jstring jline = JNIUtil::makeJString(line);
if (JNIUtil::isJavaExceptionThrown())
POP_AND_RETURN(SVN_NO_ERROR);
// call the Java method
env->CallVoidMethod(m_callback, mid, (jlong)line_no, (jlong)revision,
jrevProps, (jlong)mergedRevision, jmergedRevProps,
jmergedPath, jline, (jboolean)localChange);
// No need to check for an exception here, because we return anyway.
env->PopLocalFrame(NULL);
return SVN_NO_ERROR;
}
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