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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 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:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
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* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* 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
* its licensees as provided above. However, if you add GPL Version 2 code
* 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.jvnet.hk2.internal;
import java.util.HashSet;
import org.glassfish.hk2.api.ActiveDescriptor;
import org.glassfish.hk2.api.Filter;
import org.glassfish.hk2.api.Injectee;
import org.glassfish.hk2.api.Operation;
import org.glassfish.hk2.api.ValidationInformation;
/**
* @author jwells
*
*/
public class ValidationInformationImpl implements ValidationInformation {
private final static String SERVICE_LOCATOR_IMPL = "org.jvnet.hk2.internal.ServiceLocatorImpl";
private final static String VALIDATE_METHOD = "validate";
private final static String CHECK_METHOD = "checkConfiguration";
private final static String[] SKIP_ME = {
"org.jvnet.hk2.internal",
"org.jvnet.hk2.external.generator",
"org.glassfish.hk2.extension",
"org.glassfish.hk2.api",
"org.glassfish.hk2.internal",
"org.glassfish.hk2.utilities",
"org.glassfish.hk2.utilities.binding",
"org.jvnet.hk2.annotations",
"org.glassfish.hk2.utilities.cache",
"org.glassfish.hk2.utilities.cache.internal",
"org.glassfish.hk2.utilities.reflection",
"org.jvnet.hk2.component",
"java.util.concurrent"
};
private final static HashSet PACKAGES_TO_SKIP = new HashSet();
static {
for (String pack : SKIP_ME) {
PACKAGES_TO_SKIP.add(pack);
}
}
private final Operation operation;
private final ActiveDescriptor candidate;
private final Injectee injectee;
private final Filter filter;
/**
* Creates the validation information
* @param operation The operation to perform
* @param candidate The candidate to perform it on
* @param injectee The injecteee that may be involved
* @param filter The filter that may be involved in the lookup
*/
public ValidationInformationImpl(Operation operation,
ActiveDescriptor candidate,
Injectee injectee,
Filter filter) {
this.operation = operation;
this.candidate = candidate;
this.injectee = injectee;
this.filter = filter;
}
/**
* Creates the validation information
* @param operation The operation to perform
* @param candidate The candidate to perform it on
*/
public ValidationInformationImpl(Operation operation,
ActiveDescriptor candidate) {
this(operation, candidate, null, null);
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.ValidationInformation#getOperation()
*/
@Override
public Operation getOperation() {
return operation;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.ValidationInformation#getCandidate()
*/
@Override
public ActiveDescriptor getCandidate() {
return candidate;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.ValidationInformation#getInjectee()
*/
@Override
public Injectee getInjectee() {
return injectee;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.api.ValidationInformation#getFilter()
*/
@Override
public Filter getFilter() {
return filter;
}
private String getPackage(String name) {
int index = name.lastIndexOf('.');
if (index < 0) return name;
return name.substring(0, index);
}
/**
* The implementation of this method is VERY dependent on the implementation
* of ServiceLocatorImpl. Any refactoring of ServiceLocatorImpl having to
* do with validation will likely cause this code to break. Hopefully the
* unit tests will catch any such failures!
*/
@Override
public StackTraceElement getCaller() {
StackTraceElement frames[] = Thread.currentThread().getStackTrace();
boolean foundValidationCaller = false;
for (StackTraceElement e : frames) {
if (!foundValidationCaller) {
if (SERVICE_LOCATOR_IMPL.equals(e.getClassName()) &&
(VALIDATE_METHOD.equals(e.getMethodName()) ||
CHECK_METHOD.equals(e.getMethodName()))) {
foundValidationCaller = true;
}
}
else {
String pack = getPackage(e.getClassName());
if (!PACKAGES_TO_SKIP.contains(pack)) return e;
}
}
return null;
}
public String toString() {
return "ValidationInformation(" + operation + "," +
candidate + "," +
injectee + "," +
filter + "," +
System.identityHashCode(this) + ")";
}
}