Move V8 jni_class to bridge/jni/v8/JavaClassV8 and fix style

This is the V8 equivalent of http://trac.webkit.org/changeset/53443
It is being upstreamed to webkit.org in https://bugs.webkit.org/show_bug.cgi?id=33898

Change-Id: I27dcf73cc7d8c0303243ea632361f2210819cbc4

2 files changed, 176 insertions, 0 deletions

diff --git a/WebCore/bridge/jni/v8/JavaClassV8.cpp b/WebCore/bridge/jni/v8/JavaClassV8.cpp
new file mode 100644
index 0000000..54b40c9
--- /dev/null
+++ b/WebCore/bridge/jni/v8/JavaClassV8.cpp
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2010 Apple Computer, Inc.  All rights reserved.
+ * Copyright 2010, The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "JavaClassV8.h"
+
+#include "JNIUtility.h"
+#include "jni_runtime.h"
+
+using namespace JSC::Bindings;
+
+JavaClass::JavaClass(jobject anInstance)
+{
+    jobject aClass = callJNIMethod<jobject>(anInstance, "getClass", "()Ljava/lang/Class;");
+
+    if (!aClass) {
+        fprintf(stderr, "%s:  unable to call getClass on instance %p\n", __PRETTY_FUNCTION__, anInstance);
+        return;
+    }
+
+    jstring className = (jstring)callJNIMethod<jobject>(aClass, "getName", "()Ljava/lang/String;");
+    const char* classNameC = getCharactersFromJString(className);
+    m_name = strdup(classNameC);
+    releaseCharactersForJString(className, classNameC);
+
+    int i;
+    JNIEnv* env = getJNIEnv();
+
+    // Get the fields
+    jarray fields = (jarray)callJNIMethod<jobject>(aClass, "getFields", "()[Ljava/lang/reflect/Field;");
+    int numFields = env->GetArrayLength(fields);
+    for (i = 0; i < numFields; i++) {
+        jobject aJField = env->GetObjectArrayElement((jobjectArray)fields, i);
+        JavaField* aField = new JavaField(env, aJField); // deleted in the JavaClass destructor
+        {
+            m_fields.set(aField->name(), aField);
+        }
+        env->DeleteLocalRef(aJField);
+    }
+
+    // Get the methods
+    jarray methods = (jarray)callJNIMethod<jobject>(aClass, "getMethods", "()[Ljava/lang/reflect/Method;");
+    int numMethods = env->GetArrayLength(methods);
+    for (i = 0; i < numMethods; i++) {
+        jobject aJMethod = env->GetObjectArrayElement((jobjectArray)methods, i);
+        JavaMethod* aMethod = new JavaMethod(env, aJMethod); // deleted in the JavaClass destructor
+        MethodList* methodList;
+        {
+            methodList = m_methods.get(aMethod->name());
+            if (!methodList) {
+                methodList = new MethodList();
+                m_methods.set(aMethod->name(), methodList);
+            }
+        }
+        methodList->append(aMethod);
+        env->DeleteLocalRef(aJMethod);
+    }
+    env->DeleteLocalRef(fields);
+    env->DeleteLocalRef(methods);
+    env->DeleteLocalRef(aClass);
+}
+
+JavaClass::~JavaClass()
+{
+    free((void*)m_name);
+
+    deleteAllValues(m_fields);
+    m_fields.clear();
+
+    MethodListMap::const_iterator end = m_methods.end();
+    for (MethodListMap::const_iterator it = m_methods.begin(); it != end; ++it) {
+        const MethodList* methodList = it->second;
+        deleteAllValues(*methodList);
+        delete methodList;
+    }
+    m_methods.clear();
+}
+
+MethodList JavaClass::methodsNamed(const char* name) const
+{
+    MethodList* methodList = m_methods.get(name);
+
+    if (methodList)
+        return *methodList;
+    return MethodList();
+}
+
+JavaField* JavaClass::fieldNamed(const char* name) const
+{
+    return m_fields.get(name);
+}
diff --git a/WebCore/bridge/jni/v8/JavaClassV8.h b/WebCore/bridge/jni/v8/JavaClassV8.h
new file mode 100644
index 0000000..12cdf93
--- /dev/null
+++ b/WebCore/bridge/jni/v8/JavaClassV8.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2010 Apple Computer, Inc.  All rights reserved.
+ * Copyright 2010, The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef JavaClassV8_h
+#define JavaClassV8_h
+
+#include "PlatformString.h"
+#include "StringHash.h"
+#include "jni_runtime.h"
+#include <wtf/HashMap.h>
+#include <wtf/Vector.h>
+
+namespace JSC {
+
+namespace Bindings {
+
+typedef Vector<JavaMethod*> MethodList;
+typedef HashMap<WebCore::String, MethodList*> MethodListMap;
+typedef HashMap<WebCore::String, JavaField*> FieldMap;
+
+class JavaClass {
+public:
+    JavaClass(jobject anInstance);
+    ~JavaClass();
+
+    MethodList methodsNamed(const char* name) const;
+    JavaField* fieldNamed(const char* name) const;
+
+private:
+    const char* m_name;
+    MethodListMap m_methods;
+    FieldMap m_fields;
+};
+
+} // namespace Bindings
+
+} // namespace JSC
+
+#endif // JavaClassV8_h