/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * 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 . */ /** @HTML */ #ifndef INCLUDED_JVMFWK_INC_VENDORPLUGIN_HXX #define INCLUDED_JVMFWK_INC_VENDORPLUGIN_HXX #include #include #include #include namespace jfw_plugin { class VendorBase; } namespace rtl { template class Reference; } struct JavaInfo; namespace jfw { class VendorSettings; } /** @file

This API shall be implemented if one wants to support a Java Runtime Environment (JRE) of a particular vendor. Because there is currently no specification which rules the structure and location of JRE installations and the format of version strings it is not possible to supply a general implementation for all possible vendors. If an application determines exactly what version a JRE must have then it relies on certain features and bug fixes of that version. Because a version 1.4.2_1 from vendor X may contain different fixes as the same version from vendor Y it is important to see version and vendor as one entity. One without the other does not guarantee the existence of a particular set of features or bug fixes. An implementation of this API may support multiple vendors.

*/ enum class javaPluginError { NONE, Error, InvalidArg, WrongVersionFormat, FailedVersion, NoJre, WrongArch, VmCreationFailed }; /** obtains information about installations of Java Runtime Environments (JREs).

The function gathers information about available JREs. Only information about those JREs which match the version requirements are returned. These requirements are specified by the parameter vendorSettings.

The JavaInfo structures returned in parJavaInfo should be ordered according to their version. The one, representing a JRE with the highest version should be the first in the array.

@param parJavaInfo [out] if the function runs successfully then parJavaInfo contains on return a vector of pointers to JavaInfo objects. @return javaPluginError::NONE the function ran successfully.
javaPluginError::Error an error occurred during execution.
javaPluginError::WrongVersionFormat the version strings in vendorSettings are not recognized as valid version strings. */ javaPluginError jfw_plugin_getAllJavaInfos( bool checkJavaHomeAndPath, jfw::VendorSettings const & vendorSettings, std::vector> * parJavaInfo, std::vector> & infos); /** obtains information for a JRE at a given location.

If the given location belongs to a JRE and the JRE has a version which meets the requirements as specified by vendorSettings then this function shall return a JavaInfo object for this JRE.

@param sLocation [in] a file URL to the directory of the JRE. @param ppInfo [out] if the function runs successfully then ppInfo contains on return a pointer to a JavaInfo object. @return javaPluginError::NONE the function ran successfully.
javaPluginError::Error an error occurred during execution.
javaPluginError::InvalidArg an argument was not valid. For example, sLocation is an empty string.
javaPluginError::FailedVersion there is a JRE at the given location but it does not meet the version requirements. javaPluginError::NoJre no JRE could be detected at the given location. */ javaPluginError jfw_plugin_getJavaInfoByPath( OUString const& sLocation, jfw::VendorSettings const & vendorSettings, std::unique_ptr * ppInfo); /** obtains information for a JRE referenced by the JAVA_HOME environment variable.

If the JAVA_HOME environment variable is set and points to a JRE that matches the requirements given by vendorSettings (i.e. the version requirements, if any, for the vendor are met), then this function shall return a JavaInfo object for this JRE.

@param ppInfo [out] if the JAVA_HOME environment variable is set and points to a suitable JRE, then ppInfo contains on return a pointer to its JavaInfo object. @return javaPluginError::NONE the function ran successfully.
javaPluginError::NoJre no suitable JRE could be detected at the given location. However, that does not mean necessarily that there is no JRE. There could be a JRE but it does not meet the version requirements. */ javaPluginError jfw_plugin_getJavaInfoFromJavaHome( jfw::VendorSettings const & vendorSettings, std::unique_ptr * ppInfo, std::vector> & infos); /** obtains information about installations of Java Runtime Environments (JREs) whose executable is in the PATH.

The function gathers information about available JREs which are on the PATH (PATH environment variable) and meet the version requirements given by vendorSettings (i.e. the version requirements, if any, for the vendor are met).

The JavaInfo structures returned in vecJavaInfosFromPath should be ordered according to their occurrence in the PATH. The one that is the first one on the PATH is also the first element in the vector.

@param vecJavaInfosFromPath [out] if the function runs successfully then vecJavaInfosFromPath contains on return a vector of pointers to JavaInfo objects. On return of this function, vecJavaInfosFromPath references a newly created vector rather than the same vector as before with the JavaInfo objects inserted into the existing vector. @return javaPluginError::NONE the function ran successfully and at least one JRE that meets the requirements was found.
javaPluginError::NoJre no JavaInfo that meets the version criteria was found when inspecting the PATH */ javaPluginError jfw_plugin_getJavaInfosFromPath( jfw::VendorSettings const & vendorSettings, std::vector> & vecJavaInfosFromPath, std::vector> & infos); /** starts a Java Virtual Machine.

The caller should provide all essential JavaVMOptions, such as the class path (-Djava.class.path=xxx). It is assumed that the caller knows what JRE is used. Hence the implementation does not need to check the options for validity. If a user configured the application to use specific options, such as -X..., then it is in his responsibility to ensure that the application works properly. The function may add or modify properties. For example, it may add to the class path property.

The function must ensure, that the VM does not abort the process during instantiation.

The function receives a JavaInfo object that was created by the functions jfw_plugin_getJavaInfoByPath or jfw_plugin_getAllJavaInfos from the same library. This can be guaranteed if an application uses exactly one library for one vendor. Therefore the functions which create the JavaInfo can store all necessary information which are needed for starting the VM into that structure.

@param pInfo [in] the JavaInfo object with information about the JRE. @param arOptions [in] the options which are passed into the JNI_CreateJavaVM function. Can be NULL. @param nSizeOptions [in] the number of elements in arOptions. @param ppVM [out] the JavaVM pointer of the created VM. @param ppEnv [out] the JNIEnv pointer of the created VM. @return javaPluginError::NONE the function ran successfully.
javaPluginError::Error an error occurred during execution.
JFW_PLUGIN_E_VM_CREATION_FAILED a VM could not be created. The error was caused by the JRE. */ javaPluginError jfw_plugin_startJavaVirtualMachine( const JavaInfo *pInfo, const JavaVMOption *arOptions, sal_Int32 nSizeOptions, JavaVM ** ppVM, JNIEnv ** ppEnv); /** checks if the installation of the jre still exists. This function checks if the JRE described by pInfo still exists. The check must be very quick because it is called by javaldx (Linux, Solaris) at start up. @param pInfo [in] the JavaInfo object with information about the JRE. @param pp_exist [out] the parameter is set to either sal_True or sal_False. The value is only valid if the function returns JFW_E_NONE. @return javaPluginError::NONE the function ran successfully.
javaPluginError::Error an error occurred during execution.
javaPluginError::InvalidArg pInfo contains invalid data
*/ javaPluginError jfw_plugin_existJRE(const JavaInfo *pInfo, bool *exist); #endif /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ SOSAW080 LibreOffice 核心代码仓库文档基金会

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Age	Commit message (Expand)	Author
2020-09-01	Fix typo in code	Andrea Gelmini