Mercurial > hg > orthanc
diff Plugins/Samples/StorageArea/Plugin.cpp @ 1136:208dc67b9bab
sample custom storage plugin
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 09 Sep 2014 16:47:04 +0200 |
parents | |
children | 6e7e5ed91c2d |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Plugins/Samples/StorageArea/Plugin.cpp Tue Sep 09 16:47:04 2014 +0200 @@ -0,0 +1,163 @@ +/** + * Orthanc - A Lightweight, RESTful DICOM Store + * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, + * Belgium + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + **/ + + +#include <OrthancCPlugin.h> + +#include <string.h> +#include <stdio.h> +#include <string> + +static OrthancPluginContext* context = NULL; + + +static std::string GetPath(const char* uuid) +{ + return "plugin_" + std::string(uuid); +} + + +static int32_t StorageCreate(const char* uuid, + const void* content, + int64_t size, + OrthancPluginContentType type) +{ + std::string path = GetPath(uuid); + + FILE* fp = fopen(path.c_str(), "wb"); + if (!fp) + { + return -1; + } + + bool ok = fwrite(content, size, 1, fp) == 1; + fclose(fp); + + return ok ? 0 : -1; +} + + +static int32_t StorageRead(void** content, + int64_t* size, + const char* uuid, + OrthancPluginContentType type) +{ + std::string path = GetPath(uuid); + + FILE* fp = fopen(path.c_str(), "rb"); + if (!fp) + { + return -1; + } + + if (fseek(fp, 0, SEEK_END) < 0) + { + fclose(fp); + return -1; + } + + *size = ftell(fp); + + if (fseek(fp, 0, SEEK_SET) < 0) + { + fclose(fp); + return -1; + } + + bool ok = true; + + if (*size == 0) + { + *content = NULL; + } + else + { + *content = malloc(*size); + if (content == NULL || + fread(*content, *size, 1, fp) != 1) + { + ok = false; + } + } + + fclose(fp); + + return ok ? 0 : -1; +} + + +static int32_t StorageRemove(const char* uuid, + OrthancPluginContentType type) +{ + std::string path = GetPath(uuid); + return remove(path.c_str()); +} + + +extern "C" +{ + ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* c) + { + char info[1024]; + + context = c; + OrthancPluginLogWarning(context, "Storage plugin is initializing"); + + /* Check the version of the Orthanc core */ + if (OrthancPluginCheckVersion(c) == 0) + { + sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin", + c->orthancVersion, + ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER, + ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER, + ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER); + OrthancPluginLogError(context, info); + return -1; + } + + OrthancPluginRegisterStorageArea(context, StorageCreate, StorageRead, StorageRemove); + + return 0; + } + + + ORTHANC_PLUGINS_API void OrthancPluginFinalize() + { + OrthancPluginLogWarning(context, "Storage plugin is finalizing"); + } + + + ORTHANC_PLUGINS_API const char* OrthancPluginGetName() + { + return "storage"; + } + + + ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion() + { + return "1.0"; + } +}