org.codehaus.plexus.util.dag.CycleDetectedException Maven / Gradle / Ivy
package org.codehaus.plexus.util.dag;
/*
* Copyright The Codehaus Foundation.
*
* 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.
*/
import java.util.Iterator;
import java.util.List;
public class CycleDetectedException
extends Exception
{
private List cycle;
public CycleDetectedException( final String message, final List cycle )
{
super( message );
this.cycle = cycle;
}
public List getCycle()
{
return cycle;
}
/**
* @return
*/
public String cycleToString()
{
final StringBuilder buffer = new StringBuilder();
for ( Iterator iterator = cycle.iterator(); iterator.hasNext(); )
{
buffer.append( iterator.next() );
if ( iterator.hasNext() )
{
buffer.append( " --> " );
}
}
return buffer.toString();
}
public String getMessage()
{
return super.getMessage() + " " + cycleToString();
}
}