/**
* @copyright
* ====================================================================
* Copyright (c) 2003-2007 CollabNet. All rights reserved.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://subversion.tigris.org/license-1.html.
* If newer versions of this license are posted there, you may use a
* newer version instead, at your option.
*
* This software consists of voluntary contributions made by many
* individuals. For exact contribution history, see the revision
* history and logs, available at http://subversion.tigris.org/.
* ====================================================================
* @endcopyright
*
* @file BlameCallback.cpp
* @brief Implementation of the class BlameCallback
*/
#include "BlameCallback.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.
}
svn_error_t *
BlameCallback::callback(void *baton,
apr_int64_t line_no,
svn_revnum_t revision,
const char *author,
const char *date,
svn_revnum_t merged_revision,
const char *merged_author,
const char *merged_date,
const char *merged_path,
const char *line,
apr_pool_t *pool)
{
if (baton)
return ((BlameCallback *)baton)->singleLine(revision, author, date,
merged_revision, merged_author,
merged_date, merged_path, line,
pool);
return SVN_NO_ERROR;
}
/**
* Callback called for a single line in the file, for which the blame
* information was requested
* @param revision the revision number, when the line was last changed
* or -1, if not changed during the request revision
* interval
* @param author the author, who performed the last change of the line
* @param date the date of the last change of the line
* @param line the content of the line
* @param pool memory pool for the use of this function
*/
svn_error_t *
BlameCallback::singleLine(svn_revnum_t revision, const char *author,
const char *date, svn_revnum_t mergedRevision,
const char *mergedAuthor, const char *mergedDate,
const char *mergedPath, const char *line,
apr_pool_t *pool)
{
JNIEnv *env = JNIUtil::getEnv();
// 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"/BlameCallback2");
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
mid = env->GetMethodID(clazz, "singleLine",
"(Ljava/util/Date;JLjava/lang/String;"
"Ljava/util/Date;JLjava/lang/String;"
"Ljava/lang/String;Ljava/lang/String;)V");
if (JNIUtil::isJavaExceptionThrown() || mid == 0)
return SVN_NO_ERROR;
env->DeleteLocalRef(clazz);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
}
// convert the parameters to their Java relatives
jstring jauthor = JNIUtil::makeJString(author);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
jobject jdate = NULL;
if (date != NULL && *date != '\0')
{
apr_time_t timeTemp;
svn_error_t *err = svn_time_from_cstring(&timeTemp, date, pool);
if (err != SVN_NO_ERROR)
return err;
jdate = JNIUtil::createDate(timeTemp);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
}
jstring jmergedAuthor = JNIUtil::makeJString(mergedAuthor);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
jobject jmergedDate = NULL;
if (mergedDate != NULL && *mergedDate != '\0')
{
apr_time_t timeTemp;
svn_error_t *err = svn_time_from_cstring(&timeTemp, mergedDate, pool);
if (err != SVN_NO_ERROR)
return err;
jmergedDate = JNIUtil::createDate(timeTemp);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
}
jstring jmergedPath = JNIUtil::makeJString(mergedPath);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
jstring jline = JNIUtil::makeJString(line);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
// call the Java method
env->CallVoidMethod(m_callback, mid, jdate, (jlong)revision, jauthor,
jmergedDate, (jlong)mergedRevision, jmergedAuthor,
jmergedPath, jline);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
// cleanup the temporary Java objects
env->DeleteLocalRef(jauthor);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
env->DeleteLocalRef(jdate);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
env->DeleteLocalRef(jmergedAuthor);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
env->DeleteLocalRef(jmergedDate);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
env->DeleteLocalRef(jmergedPath);
if (JNIUtil::isJavaExceptionThrown())
return SVN_NO_ERROR;
env->DeleteLocalRef(jline);
// No need to check for an exception here, because we return anyway.
return SVN_NO_ERROR;
}