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/*
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* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.consumer;
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import java.util.List;
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import jdk.jfr.ValueDescriptor;
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import jdk.jfr.internal.Type;
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/**
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* Abstract factory for creating specialized types
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*/
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abstract class ObjectFactory<T> {
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final static String TYPE_PREFIX_VERSION_1 = "com.oracle.jfr.types.";
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final static String TYPE_PREFIX_VERSION_2 = Type.TYPES_PREFIX;
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final static String STACK_FRAME_VERSION_1 = TYPE_PREFIX_VERSION_1 + "StackFrame";
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final static String STACK_FRAME_VERSION_2 = TYPE_PREFIX_VERSION_2 + "StackFrame";
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public static ObjectFactory<?> create(Type type, TimeConverter timeConverter) {
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switch (type.getName()) {
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case "java.lang.Thread":
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return RecordedThread.createFactory(type, timeConverter);
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case TYPE_PREFIX_VERSION_1 + "StackFrame":
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case TYPE_PREFIX_VERSION_2 + "StackFrame":
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return RecordedFrame.createFactory(type, timeConverter);
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case TYPE_PREFIX_VERSION_1 + "Method":
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case TYPE_PREFIX_VERSION_2 + "Method":
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return RecordedMethod.createFactory(type, timeConverter);
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case TYPE_PREFIX_VERSION_1 + "ThreadGroup":
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case TYPE_PREFIX_VERSION_2 + "ThreadGroup":
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return RecordedThreadGroup.createFactory(type, timeConverter);
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case TYPE_PREFIX_VERSION_1 + "StackTrace":
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case TYPE_PREFIX_VERSION_2 + "StackTrace":
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return RecordedStackTrace.createFactory(type, timeConverter);
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case TYPE_PREFIX_VERSION_1 + "ClassLoader":
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case TYPE_PREFIX_VERSION_2 + "ClassLoader":
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return RecordedClassLoader.createFactory(type, timeConverter);
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case "java.lang.Class":
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return RecordedClass.createFactory(type, timeConverter);
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}
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return null;
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}
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private final List<ValueDescriptor> valueDescriptors;
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ObjectFactory(Type type) {
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this.valueDescriptors = type.getFields();
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}
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T createObject(long id, Object value) {
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if (value == null) {
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return null;
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}
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if (value instanceof Object[]) {
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return createTyped(valueDescriptors, id, (Object[]) value);
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}
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throw new InternalError("Object factory must have struct type");
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}
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abstract T createTyped(List<ValueDescriptor> valueDescriptors, long id, Object[] values);
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}
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