/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*
* @author <a href="http://community.jboss.org/people/LightGuard">Jason Porter</a>
*/
package org.jboss.solder.exception.filter;
import java.text.MessageFormat;
import java.util.HashMap;
import java.util.Map;
import org.jboss.solder.exception.filter.StackFrame;
/**
* Internal implementation of {@link StackFrame}.
*/
final class StackFrameImpl implements StackFrame {
private StackTraceElement stackTraceElement;
private final Map<String, StackFrame> markMap;
private final int index;
StackFrameImpl(final Throwable throwable) {
this.index = 0;
this.stackTraceElement = throwable.getStackTrace()[this.index];
this.markMap = new HashMap<String, StackFrame>();
}
public StackFrameImpl(final StackFrameImpl copy, final StackTraceElement nextStackTraceElement, final int traceIndex) {
this.stackTraceElement = nextStackTraceElement;
this.markMap = copy.markMap;
this.index = traceIndex;
}
@Override
public StackTraceElement getStackTraceElement() {
return this.stackTraceElement;
}
@Override
public void mark(String tag) {
this.markMap.put(tag, this);
}
@Override
public StackFrame getMarkedFrame(String tag) {
return this.markMap.get(tag);
}
@Override
public boolean isMarkSet(String tag) {
return this.markMap.containsKey(tag);
}
@Override
public void clearMark(String tag) {
this.markMap.remove(tag);
}
@Override
public void setStackTraceElement(StackTraceElement element) {
this.stackTraceElement = element;
}
@Override
public int getIndex() {
return this.index;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
StackFrameImpl that = (StackFrameImpl) o;
if (index != that.index) {
return false;
}
if (!markMap.equals(that.markMap)) {
return false;
}
if (!stackTraceElement.equals(that.stackTraceElement)) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result = stackTraceElement.hashCode();
result = 31 * result + markMap.hashCode();
result = 31 * result + index;
return result;
}
@Override
public String toString() {
return new StringBuilder(MessageFormat.format("Element Index: {0}", this.index)).append(", ")
.append(MessageFormat.format("element: {0}", this.stackTraceElement)).append(", ")
.append(MessageFormat.format("tags: {0}", this.markMap.keySet())).toString();
}
}