axmol/cocos2dx/platform/android/CCFileUtils.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

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****************************************************************************/

#define __CC_PLATFORM_FILEUTILS_CPP__
#include "platform/CCFileUtilsCommon_cpp.h"
#include "support/zip_support/ZipUtils.h"

using namespace std;

NS_CC_BEGIN

#include "platform/CCCommon.h"
#include "jni/Java_org_cocos2dx_lib_Cocos2dxHelper.h"

static CCFileUtils* s_pFileUtils = NULL;
// record the zip on the resource path
static ZipFile *s_pZipFile = NULL;

static std::map<std::string, std::string> s_fullPathCache;

CCFileUtils* CCFileUtils::sharedFileUtils()
{
    if (s_pFileUtils == NULL)
    {
        s_pFileUtils = new CCFileUtils();
        s_pFileUtils->init();
        std::string resourcePath = getApkPath();
        s_pZipFile = new ZipFile(resourcePath, "assets/");
    }
    return s_pFileUtils;
}

bool CCFileUtils::init()
{
    m_pSearchPathArray = new CCArray();
    m_pSearchPathArray->addObject(CCString::create("assets/"));
    
    m_pSearchResolutionsOrderArray = new CCArray();
    m_pSearchResolutionsOrderArray->addObject(CCString::create(""));

    return true;
}

void CCFileUtils::purgeFileUtils()
{
    if (s_pFileUtils != NULL)
    {
        s_pFileUtils->purgeCachedEntries();
        CC_SAFE_RELEASE(s_pFileUtils->m_pFilenameLookupDict);
        CC_SAFE_RELEASE(s_pFileUtils->m_pSearchPathArray);
        CC_SAFE_RELEASE(s_pFileUtils->m_pSearchResolutionsOrderArray);
    }

    CC_SAFE_DELETE(s_pZipFile);
    CC_SAFE_DELETE(s_pFileUtils);
}

void CCFileUtils::purgeCachedEntries()
{
    s_fullPathCache.clear();
}

const char* CCFileUtils::fullPathFromRelativePath(const char *pszRelativePath)
{
    return CCString::create(fullPathForFilename(pszRelativePath))->getCString();
}

std::string CCFileUtils::fullPathForFilename(const char* pszFileName)
{
    if (pszFileName == NULL || pszFileName[0] == '\0' || pszFileName[0] == '/') {
        return pszFileName;
    }

    // Already Cached ?
    std::map<std::string, std::string>::iterator cacheIter = s_fullPathCache.find(pszFileName);
    if (cacheIter != s_fullPathCache.end())
    {
        CCLOG("Return full path from cache: %s", cacheIter->second.c_str());
        return cacheIter->second;
    }

    // Get the new file name.
    std::string newFilename = getNewFilename(pszFileName);

    string fullpath = "";

    
    bool bFound = false;
    CCObject* pSearchObj = NULL;
    CCARRAY_FOREACH(m_pSearchPathArray, pSearchObj)
    {
        CCString* pSearchPath = (CCString*)pSearchObj;
        
        CCObject* pResourceDirObj = NULL;
        CCARRAY_FOREACH(m_pSearchResolutionsOrderArray, pResourceDirObj)
        {
            CCString* pResourceDirectory = (CCString*)pResourceDirObj;
    
            CCLOG("\n\nSEARCHING: %s, %s, %s", pszFileName, pResourceDirectory->getCString(), pSearchPath->getCString());
                    fullpath = this->getPathForFilename(pszFileName, pResourceDirectory->getCString(), pSearchPath->getCString());
            
            // Check whether file exists in apk.
            if (s_pZipFile->fileExists(fullpath))
            {
                bFound = true;
            } 
            else
            {
                FILE *fp = fopen(fullpath.c_str(), "r");
                if(fp)
                {
                    bFound = true;
                    fclose(fp);
                }
            }
            if (bFound)
            {
                s_fullPathCache.insert(std::pair<std::string, std::string>(pszFileName, fullpath));
                CCLOG("Returning path: %s", fullpath.c_str());
                return fullpath;
            }
        }
    }

    return pszFileName;
}

const char* CCFileUtils::fullPathFromRelativeFile(const char *pszFilename, const char *pszRelativeFile)
{
    std::string relativeFile = pszRelativeFile;
    CCString *pRet = CCString::create("");
    pRet->m_sString = relativeFile.substr(0, relativeFile.rfind('/')+1);
    pRet->m_sString += getNewFilename(pszFilename);
    return pRet->getCString();
}

std::string CCFileUtils::getPathForFilename(const std::string& filename, const std::string& resourceDirectory, const std::string& searchPath)
{
    std::string file = filename;
    std::string file_path = "";
    size_t pos = filename.find_last_of("/");
    if (pos != std::string::npos)
    {
        file_path = filename.substr(0, pos+1);
        file = filename.substr(pos+1);
    }
    
  // searchPath + file_path + resourceDirectory
    std::string path = searchPath;
    if (path.size() > 0 && path[path.length()-1] != '/')
    {
        path += "/";
    }
    path += file_path;
    path += resourceDirectory;
    
    if (path.size() > 0 && path[path.length()-1] != '/')
    {
        path += "/";
    }
    path += file;

    CCLOG("getPathForFilename, fullPath = %s", path.c_str());
    return path;
}

unsigned char* CCFileUtils::getFileData(const char* pszFileName, const char* pszMode, unsigned long * pSize)
{    
    unsigned char * pData = 0;

    if ((! pszFileName) || (! pszMode) || 0 == strlen(pszFileName))
    {
        return 0;
    }

    if (pszFileName[0] != '/')
    {
        CCLOG("GETTING FILE RELATIVE DATA: %s", pszFileName);
        pData = s_pZipFile->getFileData(pszFileName, pSize);
    }
    else
    {
        do 
        {
            // read rrom other path than user set it
	        CCLOG("GETTING FILE ABSOLUTE DATA: %s", pszFileName);
            FILE *fp = fopen(pszFileName, pszMode);
            CC_BREAK_IF(!fp);

            unsigned long size;
            fseek(fp,0,SEEK_END);
            size = ftell(fp);
            fseek(fp,0,SEEK_SET);
            pData = new unsigned char[size];
            size = fread(pData,sizeof(unsigned char), size,fp);
            fclose(fp);

            if (pSize)
            {
                *pSize = size;
            }            
        } while (0);        
    }

    if (! pData && isPopupNotify())
    {
        std::string title = "Notification";
        std::string msg = "Get data from file(";
        msg.append(pszFileName).append(") failed!");
        CCMessageBox(msg.c_str(), title.c_str());
    }

    return pData;
}

void CCFileUtils::setResourceDirectory(const char* pszResourceDirectory)
{
    if (pszResourceDirectory == NULL) return;

    m_obDirectory = pszResourceDirectory;
    if (m_obDirectory.size() > 0 && m_obDirectory[m_obDirectory.size() - 1] != '/')
    {
        m_obDirectory.append("/");
    }
    if (pszResourceDirectory[0] != '/')
    {
        m_obDirectory.insert(0, "assets/");
    }
    
    m_pSearchPathArray->insertObject(CCString::create(m_obDirectory.c_str()), 0);
}

string CCFileUtils::getWriteablePath()
{
    // Fix for Nexus 10 (Android 4.2 multi-user environment)
    // the path is retrieved through Java Context.getCacheDir() method
    string dir("");
    const char *tmp = getCacheDirectoryJNI();

    if (tmp)
    {
        dir.append(tmp).append("/");

        return dir;
    }
    else
    {
        return "";
    }
}

NS_CC_END