/**
* Copyright (c) 2009-2011 VMware, Inc. All Rights Reserved.
*
* 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.
*/
package com.springsource.insight.plugin.ehcache;
import java.util.List;
import com.springsource.insight.intercept.operation.Operation;
import com.springsource.insight.intercept.trace.Frame;
import com.springsource.insight.intercept.trace.collapse.AbstractCollapsingFrameHelper;
import com.springsource.insight.intercept.trace.collapse.CollapsingFrameHelper;
import com.springsource.insight.util.ListUtil;
public final class EhcacheCollapsingFrameHelper extends AbstractCollapsingFrameHelper implements CollapsingFrameHelper {
private static final EhcacheCollapsingFrameHelper INSTANCE = new EhcacheCollapsingFrameHelper();
private EhcacheCollapsingFrameHelper() {
}
public static final CollapsingFrameHelper getInstance() {
return INSTANCE;
}
public boolean shouldCollapse(final Frame currentFrame) {
final Frame parentFrame = currentFrame.getParent();
final List<Frame> children = parentFrame.getChildren();
if (ListUtil.size(children) < 2) {
return false;
}
final Frame lastChildFrame = children.get(children.size() - 2);
return sameMethod(currentFrame, lastChildFrame);
}
private boolean sameMethod(final Frame currentFrame, final Frame lastChildFrame) {
final Operation lastOperation = lastChildFrame.getOperation();
final String lastMethod = getMethodAttribute(lastOperation);
final Operation currentOperation = currentFrame.getOperation();
final String currentMethod = getMethodAttribute(currentOperation);
return lastMethod.equals(currentMethod);
}
private String getMethodAttribute(final Operation operation) {
return operation.get(EhcacheDefinitions.METHOD_ATTRIBUTE, String.class, "");
}
}