jvmaccess/source/classpath.cxx

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  28
  29 #include "sal/config.h"
  30
  31 #include "jvmaccess/classpath.hxx"
  32
  33 #include <vector>
  34
  35 #include "com/sun/star/lang/IllegalArgumentException.hpp"
  36 #include "com/sun/star/uno/Any.hxx"
  37 #include "com/sun/star/uno/Reference.hxx"
  38 #include "com/sun/star/uno/RuntimeException.hpp"
  39 #include "com/sun/star/uno/XComponentContext.hpp"
  40 #include "com/sun/star/uno/XInterface.hpp"
  41 #include "com/sun/star/uri/UriReferenceFactory.hpp"
  42 #include "com/sun/star/uri/XVndSunStarExpandUrlReference.hpp"
  43 #include "com/sun/star/util/XMacroExpander.hpp"
  44 #include "osl/diagnose.h"
  45 #include "rtl/ustring.hxx"
  46 #include "sal/types.h"
  47
  48 #if defined SOLAR_JAVA
  49 #include "jni.h"
  50 #endif
  51
  52 namespace {
  53
  54 namespace css = ::com::sun::star;
  55
  56 }
  57
  58 void * ::jvmaccess::ClassPath::doTranslateToUrls(
  59     css::uno::Reference< css::uno::XComponentContext > const & context,
  60     void * environment, ::rtl::OUString const & classPath)
  61 {
  62     OSL_ASSERT(context.is() && environment != 0);
  63 #if defined SOLAR_JAVA
  64     ::JNIEnv * const env = static_cast< ::JNIEnv * >(environment);
  65     jclass classUrl(env->FindClass("java/net/URL"));
  66     if (classUrl == 0) {
  67         return 0;
  68     }
  69     jmethodID ctorUrl(
  70         env->GetMethodID(classUrl, "<init>", "(Ljava/lang/String;)V"));
  71     if (ctorUrl == 0) {
  72         return 0;
  73     }
  74     ::std::vector< jobject > urls;
  75     for (::sal_Int32 i = 0; i != -1;) {
  76         ::rtl::OUString url(classPath.getToken(0, ' ', i));
  77         if (!url.isEmpty()) {
  78             css::uno::Reference< css::uri::XVndSunStarExpandUrlReference >
  79                 expUrl(
  80                     css::uri::UriReferenceFactory::create(context)->parse(url),
  81                     css::uno::UNO_QUERY);
  82             if (expUrl.is()) {
  83                 css::uno::Reference< css::util::XMacroExpander > expander(
  84                     context->getValueByName(
  85                         ::rtl::OUString(
  86                             RTL_CONSTASCII_USTRINGPARAM(
  87                                 "/singletons/"
  88                                 "com.sun.star.util.theMacroExpander"))),
  89                     css::uno::UNO_QUERY_THROW);
  90                 try {
  91                     url = expUrl->expand(expander);
  92                 } catch (const css::lang::IllegalArgumentException & e) {
  93                     throw css::uno::RuntimeException(
  94                         (::rtl::OUString(
  95                             RTL_CONSTASCII_USTRINGPARAM(
  96                                 "com.sun.star.lang.IllegalArgumentException: "))
  97                          + e.Message),
  98                         css::uno::Reference< css::uno::XInterface >());
  99                 }
 100             }
 101             jvalue arg;
 102             arg.l = env->NewString(
 103                 static_cast< jchar const * >(url.getStr()),
 104                 static_cast< jsize >(url.getLength()));
 105             if (arg.l == 0) {
 106                 return 0;
 107             }
 108             jobject o(env->NewObjectA(classUrl, ctorUrl, &arg));
 109             if (o == 0) {
 110                 return 0;
 111             }
 112             urls.push_back(o);
 113         }
 114     }
 115     jobjectArray result = env->NewObjectArray(
 116         static_cast< jsize >(urls.size()), classUrl, 0);
 117         // static_cast is ok, as each element of urls occupied at least one
 118         // character of the ::rtl::OUString classPath
 119     if (result == 0) {
 120         return 0;
 121     }
 122     jsize idx = 0;
 123     for (std::vector< jobject >::iterator i(urls.begin()); i != urls.end(); ++i)
 124     {
 125         env->SetObjectArrayElement(result, idx++, *i);
 126     }
 127     return result;
 128 #else
 129     (void) context;
 130     (void) environment;
 131     (void) classPath;
 132     return 0;
 133 #endif
 134 }
 135
 136 void * ::jvmaccess::ClassPath::doLoadClass(
 137     css::uno::Reference< css::uno::XComponentContext > const & context,
 138     void * environment, ::rtl::OUString const & classPath,
 139     ::rtl::OUString const & name)
 140 {
 141     OSL_ASSERT(context.is() && environment != 0);
 142 #if defined SOLAR_JAVA
 143     ::JNIEnv * const env = static_cast< ::JNIEnv * >(environment);
 144     jclass classLoader(env->FindClass("java/net/URLClassLoader"));
 145     if (classLoader == 0) {
 146         return 0;
 147     }
 148     jmethodID ctorLoader(
 149         env->GetMethodID(classLoader, "<init>", "([Ljava/net/URL;)V"));
 150     if (ctorLoader == 0) {
 151         return 0;
 152     }
 153     jvalue arg;
 154     arg.l = translateToUrls(context, env, classPath);
 155     if (arg.l == 0) {
 156         return 0;
 157     }
 158     jobject cl = env->NewObjectA(classLoader, ctorLoader, &arg);
 159     if (cl == 0) {
 160         return 0;
 161     }
 162     jmethodID methLoadClass(
 163         env->GetMethodID(
 164             classLoader, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;"));
 165     if (methLoadClass == 0) {
 166         return 0;
 167     }
 168     arg.l = env->NewString(
 169         static_cast< jchar const * >(name.getStr()),
 170         static_cast< jsize >(name.getLength()));
 171     if (arg.l == 0) {
 172         return 0;
 173     }
 174     return env->CallObjectMethodA(cl, methLoadClass, &arg);
 175 #else
 176     (void) context;
 177     (void) environment;
 178     (void) classPath;
 179     (void) name;
 180     return 0;
 181 #endif
 182 }
 183
 184 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */