add

+/**************************************************************************
+* file:              dmpapplication.cpp
+
+* Author:            wanzhongping
+* Date:              2021-02-24 11:23:15
+* Email:             zhongpingw@chinadci.com
+* copyright:         广州城市信息研究所有限公司
+***************************************************************************/
+#include "dmpapplication.h"
+#include <iostream>
+#include <fstream>
+#include "dmpconfig.h"
+#include "dmplogger.h"
+
+bool DmpApplication::running_from_build_dir_ = false;
+bool DmpApplication::initialized_ = false;
+std::string DmpApplication::plugin_path_ = "";
+std::string DmpApplication::prefix_path_ = "";
+std::string DmpApplication::libexec_path_ = "";
+std::string DmpApplication::library_path_ = "";
+std::string DmpApplication::build_source_path_ = "";
+std::string DmpApplication::build_output_path_ = "";
+std::string DmpApplication::pkg_data_path_ = "";
+
+DmpApplication::DmpApplication()
+{
+    std::cout << "constructor called!" << std::endl;
+    LOGGER_DEBUG("constructor called!");
+}
+
+DmpApplication::~DmpApplication()
+{
+    std::cout << "destructor called!" << std::endl;
+    LOGGER_DEBUG("destructor called!");
+}
+
+DmpApplication &DmpApplication::Instance()
+{
+    static DmpApplication instance;
+    return instance;
+}
+
+void DmpApplication::Init()
+{
+    LOGGER_INFO("DmpApplication init...");
+    ResolvePkgPath();
+    if (running_from_build_dir_)
+    {
+        // we run from source directory - not installed to destination (specified prefix)
+        prefix_path_ = "";
+        set_plugin_path(build_source_path_ + '/' + DMAP_PLUGIN_SUBDIR);
+        set_pkg_data_path(build_output_path_ + "/data"); // in buildDir/data - used for: doc, resources, svg
+        library_path_ = build_output_path_ + '/' + DMAP_LIB_SUBDIR + '/';
+        libexec_path_ = build_output_path_ + '/' + DMAP_LIBEXEC_SUBDIR + '/';
+    }
+    else
+    {
+        char *prefix_path = getenv("DMAP_PREFIX_PATH");
+        if (!prefix_path)
+        {
+            set_prefix_path("/usr/local");
+        }else{
+            set_prefix_path(prefix_path);
+        }
+    }
+    initialized_ = true;
+    LOGGER_INFO("DmpApplication init done");
+}
+bool DmpApplication::IsRunningFromBuildDir()
+{
+    return running_from_build_dir_;
+}
+std::string DmpApplication::ApplicationDirPath()
+{
+    boost::filesystem::path libDir = boost::filesystem::current_path();
+    return libDir.c_str();
+}
+
+std::string DmpApplication::ResolvePkgPath()
+{
+    std::string app_path = ApplicationDirPath();
+    if (!app_path.empty() || getenv("DMAP_PREFIX_PATH"))
+    {
+        std::string prefix_Path = getenv("DMAP_PREFIX_PATH") ? getenv("DMAP_PREFIX_PATH") : app_path;
+        // check if DMAP is run from build directory (not the install directory)
+        boost::filesystem::path dmapbuildpath;
+        boost::filesystem::path dir(prefix_Path);
+        if (SearchFile(dir, "dmapbuildpath.txt", dmapbuildpath))
+        {
+            std::cout << dmapbuildpath.c_str() << std::endl;
+            running_from_build_dir_ = true;
+            std::ifstream fin(dmapbuildpath.c_str());
+            std::getline(fin, build_source_path_);
+            boost::trim(build_source_path_);
+            std::getline(fin, build_output_path_);
+            boost::trim(build_output_path_);
+        }
+
+        if (IsRunningFromBuildDir)
+        {
+            return build_output_path_ + "/Data";
+        }
+        else
+        {
+            return prefix_Path + '/' + DMAP_DATA_SUBDIR;
+        }
+    }
+    return "";
+}
+std::string DmpApplication::pkg_data_path()
+{
+    return pkg_data_path_;
+}
+void DmpApplication::set_pkg_data_path(const std::string &pkg_data_path)
+{
+    pkg_data_path_ = pkg_data_path;
+}
+
+std::string DmpApplication::library_path()
+{
+  return library_path_;
+}
+
+void DmpApplication::set_prefix_path(const std::string &prefix_path)
+{
+    LOGGER_DEBUG("set_prefix_path: " + prefix_path);
+    prefix_path_ = prefix_path;
+    if(IsRunningFromBuildDir)
+    {
+      set_plugin_path(prefix_path_ + '/' + DMAP_PLUGIN_SUBDIR);
+      set_pkg_data_path(prefix_path_ + '/' + DMAP_DATA_SUBDIR);
+    }
+    library_path_ = prefix_path_ + '/' + DMAP_LIB_SUBDIR + '/';
+    libexec_path_ = prefix_path_ + '/' + DMAP_LIBEXEC_SUBDIR + '/';
+}
+
+bool DmpApplication::SearchFile(const boost::filesystem::path &dir, const std::string file_name, boost::filesystem::path &path)
+{
+    if (!boost::filesystem::exists(dir))
+    {
+        return false;
+    }
+
+    boost::filesystem::directory_iterator end_iter;
+    for (boost::filesystem::directory_iterator iter(dir); iter != end_iter; ++iter)
+    {
+        if (boost::filesystem::is_regular_file(iter->status()) && iter->path().filename() == file_name)
+        {
+            path = iter->path();
+            return true;
+        }
+
+        if (boost::filesystem::is_directory(iter->status()))
+        {
+            if (SearchFile(iter->path(), file_name, path))
+            {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+void DmpApplication::set_plugin_path(const std::string &plugin_path)
+{
+    plugin_path_ = plugin_path;
+}
+
+std::string DmpApplication::prefix_path()
+{
+    return prefix_path_;
+}
+
+std::string DmpApplication::libexec_path()
+{
+    return libexec_path_;
+}
+
+std::string DmpApplication::plugin_path()
+{
+    return plugin_path_;
+}
+
+bool DmpApplication::CreateDatabase()
+{
+    return false;
+}
+
+std::string DmpApplication::build_output_path()
+{
+    return build_output_path_;
+}
+
+std::string DmpApplication::DMapSettingsDirPath()
+{
+  return "";
+}
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