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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2006-2012 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
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* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
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* enclosed by brackets [] replaced by your own identifying information:
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* elects to include this software in this distribution under the [CDDL or GPL
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* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
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* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.glassfish.contextpropagation.internal;
import java.util.EnumSet;
import org.glassfish.contextpropagation.PropagationMode;
import org.glassfish.contextpropagation.View;
/**
* Entries hold work contexts in the ContextMap as well as related metadata:
* propagation mode, whether this thread originated the work context, and
* whether all are allowed to read its work context.
*/
public class Entry {
Object value;
EnumSet propagationModes;
transient Boolean isOriginator;
transient Boolean allowAllToRead;
ContextType contextType;
/**
* Dedicated constructor, set the work context, it propagation mode and type.
* @param context
* @param propModes
* @param contextType
*/
public Entry(Object context, EnumSet propModes, ContextType contextType) {
this.value = context;
propagationModes = propModes;
this.contextType = contextType;
}
public View getView() {
throw new UnsupportedOperationException("This Entry does not have a View associated to it");
}
public static Entry createViewEntryInstance(Object context,
EnumSet propModes, final ViewImpl view) {
return new Entry(context, propModes, ContextType.VIEW_CAPABLE) {
@Override public View getView() { return view; }
};
}
public String getClassName() {
throw new UnsupportedOperationException("This Entry does not have a class name associated to it.");
}
public static Entry createOpaqueEntryInstance(Object context,
EnumSet propModes, final String className) {
return new Entry(context, propModes, ContextType.OPAQUE) {
@Override public String getClassName() { return className; }
};
}
/**
* Utility method to set additional metadata.
* @param isOriginator
* @param allowAllToRead
* @return
*/
public Entry init(Boolean isOriginator, Boolean allowAllToRead) {
this.isOriginator = isOriginator;
this.allowAllToRead = allowAllToRead;
return this;
}
private static final String LINE_SEP = System.getProperty("line.separator");
@Override
public String toString() {
StringBuilder sb = new StringBuilder(super.toString());
sb.append(" {").append(LINE_SEP);
sb.append(" Value: " + value).append(LINE_SEP);
sb.append(" Propagation Modes: " + propagationModes).append(LINE_SEP);
sb.append(" ContextType: " + contextType.name()).append(LINE_SEP);
sb.append(isOriginator ? " originator" : " remote origin").append(LINE_SEP);
sb.append(allowAllToRead ? " readable by all" : " restricted read access").append(LINE_SEP);
sb.append("}");
return sb.toString();
}
public ContextType getContextType() {
return contextType;
}
@SuppressWarnings("unchecked")
public U getValue() {
return (U) value;
}
public EnumSet getPropagationModes() {
return propagationModes;
}
void validate() {
if (value == null) throw new IllegalStateException("Entry must contain a non-null value.");
if (contextType == null) throw new IllegalStateException("Entry must have a ContextType.");
if (propagationModes == null) throw new IllegalStateException("Entry must have a EnumSet ContextType fromNumberClass(Class clz) {
String simpleName = clz.getSimpleName();
switch (simpleName.length()) {
case NumberConstants.BYTE_LONG_SHORT:
switch (simpleName.charAt(0)) {
case NumberConstants.BYTE: return BYTE;
case NumberConstants.LONG: return LONG;
}
case NumberConstants.SHORT_FLOAT:
switch (simpleName.charAt(0)) {
case NumberConstants.SHORT: return SHORT;
case NumberConstants.FLOAT: return FLOAT;
}
case NumberConstants.DOUBLE: return DOUBLE;
case NumberConstants.INTEGER: return INT;
case NumberConstants.ATOMICLONG_BIGDECIMAL_BIGINTEGER:
switch (simpleName.charAt(3)) {
case NumberConstants.ATOMICLONG: return ATOMICLONG;
case NumberConstants.BIGDECIMAL: return BIGDECIMAL;
case NumberConstants.BIGINTEGER: return BIGINTEGER;
}
case NumberConstants.ATOMICINTEGER: return ATOMICINTEGER;
}
throw new AssertionError("Unexepected Number Type: " + clz.getName());
}
}
}
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